From 468dd28119bd80d1d4f0484efb7652c507ca8522 Mon Sep 17 00:00:00 2001 From: Pawel Date: Sat, 5 Oct 2019 10:17:25 -0700 Subject: [PATCH 1/4] chore: fixing audit errors --- dist/pouchdb.quick-search.js | 49484 +++++++++++++++-------------- dist/pouchdb.quick-search.min.js | 13 +- lib/index.js | 2 +- package-lock.json | 10002 ++++++ package.json | 20 +- 5 files changed, 35475 insertions(+), 24046 deletions(-) create mode 100644 package-lock.json diff --git a/dist/pouchdb.quick-search.js b/dist/pouchdb.quick-search.js index 4a3770b..e143e41 100644 --- a/dist/pouchdb.quick-search.js +++ b/dist/pouchdb.quick-search.js @@ -1,8 +1,8 @@ -(function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.PouchQuickSearch = f()}})(function(){var define,module,exports;return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o 0) { + return results.slice(skip); + } + return results; +} - if (this.length === 0) - return out; +function rowToDocId(row) { + var val = row.value; + // Users can explicitly specify a joined doc _id, or it + // defaults to the doc _id that emitted the key/value. + var docId = (val && typeof val === 'object' && val._id) || row.id; + return docId; +} - if (Array.isArray(this.value)) { - this.value.forEach(function(item) { - item.join(out, offset); - offset += item.length; +function readAttachmentsAsBlobOrBuffer(res) { + res.rows.forEach(function (row) { + var atts = row.doc && row.doc._attachments; + if (!atts) { + return; + } + Object.keys(atts).forEach(function (filename) { + var att = atts[filename]; + atts[filename].data = pouchdbBinaryUtils.base64StringToBlobOrBuffer(att.data, att.content_type); }); - } else { - if (typeof this.value === 'number') - out[offset] = this.value; - else if (typeof this.value === 'string') - out.write(this.value, offset); - else if (Buffer.isBuffer(this.value)) - this.value.copy(out, offset); - offset += this.length; - } - - return out; -}; + }); +} -},{"47":47,"6":6,"97":97}],6:[function(require,module,exports){ -var base = exports; +function postprocessAttachments(opts) { + return function (res) { + if (opts.include_docs && opts.attachments && opts.binary) { + readAttachmentsAsBlobOrBuffer(res); + } + return res; + }; +} -base.Reporter = require(8).Reporter; -base.DecoderBuffer = require(5).DecoderBuffer; -base.EncoderBuffer = require(5).EncoderBuffer; -base.Node = require(7); +function createBuiltInError(name) { + var message = 'builtin ' + name + + ' function requires map values to be numbers' + + ' or number arrays'; + return new BuiltInError(message); +} -},{"5":5,"7":7,"8":8}],7:[function(require,module,exports){ -var Reporter = require(6).Reporter; -var EncoderBuffer = require(6).EncoderBuffer; -var DecoderBuffer = require(6).DecoderBuffer; -var assert = require(106); +function sum(values) { + var result = 0; + for (var i = 0, len = values.length; i < len; i++) { + var num = values[i]; + if (typeof num !== 'number') { + if (Array.isArray(num)) { + // lists of numbers are also allowed, sum them separately + result = typeof result === 'number' ? [result] : result; + for (var j = 0, jLen = num.length; j < jLen; j++) { + var jNum = num[j]; + if (typeof jNum !== 'number') { + throw createBuiltInError('_sum'); + } else if (typeof result[j] === 'undefined') { + result.push(jNum); + } else { + result[j] += jNum; + } + } + } else { // not array/number + throw createBuiltInError('_sum'); + } + } else if (typeof result === 'number') { + result += num; + } else { // add number to array + result[0] += num; + } + } + return result; +} -// Supported tags -var tags = [ - 'seq', 'seqof', 'set', 'setof', 'objid', 'bool', - 'gentime', 'utctime', 'null_', 'enum', 'int', 'objDesc', - 'bitstr', 'bmpstr', 'charstr', 'genstr', 'graphstr', 'ia5str', 'iso646str', - 'numstr', 'octstr', 'printstr', 't61str', 'unistr', 'utf8str', 'videostr' -]; +var builtInReduce = { + _sum: function (keys, values) { + return sum(values); + }, -// Public methods list -var methods = [ - 'key', 'obj', 'use', 'optional', 'explicit', 'implicit', 'def', 'choice', - 'any', 'contains' -].concat(tags); + _count: function (keys, values) { + return values.length; + }, -// Overrided methods list -var overrided = [ - '_peekTag', '_decodeTag', '_use', - '_decodeStr', '_decodeObjid', '_decodeTime', - '_decodeNull', '_decodeInt', '_decodeBool', '_decodeList', + _stats: function (keys, values) { + // no need to implement rereduce=true, because Pouch + // will never call it + function sumsqr(values) { + var _sumsqr = 0; + for (var i = 0, len = values.length; i < len; i++) { + var num = values[i]; + _sumsqr += (num * num); + } + return _sumsqr; + } + return { + sum : sum(values), + min : Math.min.apply(null, values), + max : Math.max.apply(null, values), + count : values.length, + sumsqr : sumsqr(values) + }; + } +}; - '_encodeComposite', '_encodeStr', '_encodeObjid', '_encodeTime', - '_encodeNull', '_encodeInt', '_encodeBool' -]; +function addHttpParam(paramName, opts, params, asJson) { + // add an http param from opts to params, optionally json-encoded + var val = opts[paramName]; + if (typeof val !== 'undefined') { + if (asJson) { + val = encodeURIComponent(JSON.stringify(val)); + } + params.push(paramName + '=' + val); + } +} -function Node(enc, parent) { - var state = {}; - this._baseState = state; +function coerceInteger(integerCandidate) { + if (typeof integerCandidate !== 'undefined') { + var asNumber = Number(integerCandidate); + // prevents e.g. '1foo' or '1.1' being coerced to 1 + if (!isNaN(asNumber) && asNumber === parseInt(integerCandidate, 10)) { + return asNumber; + } else { + return integerCandidate; + } + } +} - state.enc = enc; +function coerceOptions(opts) { + opts.group_level = coerceInteger(opts.group_level); + opts.limit = coerceInteger(opts.limit); + opts.skip = coerceInteger(opts.skip); + return opts; +} - state.parent = parent || null; - state.children = null; +function checkPositiveInteger(number) { + if (number) { + if (typeof number !== 'number') { + return new QueryParseError('Invalid value for integer: "' + + number + '"'); + } + if (number < 0) { + return new QueryParseError('Invalid value for positive integer: ' + + '"' + number + '"'); + } + } +} - // State - state.tag = null; - state.args = null; - state.reverseArgs = null; - state.choice = null; - state.optional = false; - state.any = false; - state.obj = false; - state.use = null; - state.useDecoder = null; - state.key = null; - state['default'] = null; - state.explicit = null; - state.implicit = null; - state.contains = null; +function checkQueryParseError(options, fun) { + var startkeyName = options.descending ? 'endkey' : 'startkey'; + var endkeyName = options.descending ? 'startkey' : 'endkey'; - // Should create new instance on each method - if (!state.parent) { - state.children = []; - this._wrap(); + if (typeof options[startkeyName] !== 'undefined' && + typeof options[endkeyName] !== 'undefined' && + pouchdbCollate.collate(options[startkeyName], options[endkeyName]) > 0) { + throw new QueryParseError('No rows can match your key range, ' + + 'reverse your start_key and end_key or set {descending : true}'); + } else if (fun.reduce && options.reduce !== false) { + if (options.include_docs) { + throw new QueryParseError('{include_docs:true} is invalid for reduce'); + } else if (options.keys && options.keys.length > 1 && + !options.group && !options.group_level) { + throw new QueryParseError('Multi-key fetches for reduce views must use ' + + '{group: true}'); + } } + ['group_level', 'limit', 'skip'].forEach(function (optionName) { + var error = checkPositiveInteger(options[optionName]); + if (error) { + throw error; + } + }); } -module.exports = Node; -var stateProps = [ - 'enc', 'parent', 'children', 'tag', 'args', 'reverseArgs', 'choice', - 'optional', 'any', 'obj', 'use', 'alteredUse', 'key', 'default', 'explicit', - 'implicit', 'contains' -]; +function httpQuery(db, fun, opts) { + // List of parameters to add to the PUT request + var params = []; + var body; + var method = 'GET'; -Node.prototype.clone = function clone() { - var state = this._baseState; - var cstate = {}; - stateProps.forEach(function(prop) { - cstate[prop] = state[prop]; - }); - var res = new this.constructor(cstate.parent); - res._baseState = cstate; - return res; -}; + // If opts.reduce exists and is defined, then add it to the list + // of parameters. + // If reduce=false then the results are that of only the map function + // not the final result of map and reduce. + addHttpParam('reduce', opts, params); + addHttpParam('include_docs', opts, params); + addHttpParam('attachments', opts, params); + addHttpParam('limit', opts, params); + addHttpParam('descending', opts, params); + addHttpParam('group', opts, params); + addHttpParam('group_level', opts, params); + addHttpParam('skip', opts, params); + addHttpParam('stale', opts, params); + addHttpParam('conflicts', opts, params); + addHttpParam('startkey', opts, params, true); + addHttpParam('start_key', opts, params, true); + addHttpParam('endkey', opts, params, true); + addHttpParam('end_key', opts, params, true); + addHttpParam('inclusive_end', opts, params); + addHttpParam('key', opts, params, true); -Node.prototype._wrap = function wrap() { - var state = this._baseState; - methods.forEach(function(method) { - this[method] = function _wrappedMethod() { - var clone = new this.constructor(this); - state.children.push(clone); - return clone[method].apply(clone, arguments); - }; - }, this); -}; + // Format the list of parameters into a valid URI query string + params = params.join('&'); + params = params === '' ? '' : '?' + params; -Node.prototype._init = function init(body) { - var state = this._baseState; + // If keys are supplied, issue a POST to circumvent GET query string limits + // see http://wiki.apache.org/couchdb/HTTP_view_API#Querying_Options + if (typeof opts.keys !== 'undefined') { + var MAX_URL_LENGTH = 2000; + // according to http://stackoverflow.com/a/417184/680742, + // the de facto URL length limit is 2000 characters - assert(state.parent === null); - body.call(this); + var keysAsString = + 'keys=' + encodeURIComponent(JSON.stringify(opts.keys)); + if (keysAsString.length + params.length + 1 <= MAX_URL_LENGTH) { + // If the keys are short enough, do a GET. we do this to work around + // Safari not understanding 304s on POSTs (see pouchdb/pouchdb#1239) + params += (params[0] === '?' ? '&' : '?') + keysAsString; + } else { + method = 'POST'; + if (typeof fun === 'string') { + body = {keys: opts.keys}; + } else { // fun is {map : mapfun}, so append to this + fun.keys = opts.keys; + } + } + } - // Filter children - state.children = state.children.filter(function(child) { - return child._baseState.parent === this; - }, this); - assert.equal(state.children.length, 1, 'Root node can have only one child'); -}; + // We are referencing a query defined in the design doc + if (typeof fun === 'string') { + var parts = parseViewName(fun); + return db.request({ + method: method, + url: '_design/' + parts[0] + '/_view/' + parts[1] + params, + body: body + }).then(postprocessAttachments(opts)); + } -Node.prototype._useArgs = function useArgs(args) { - var state = this._baseState; + // We are using a temporary view, terrible for performance, good for testing + body = body || {}; + Object.keys(fun).forEach(function (key) { + if (Array.isArray(fun[key])) { + body[key] = fun[key]; + } else { + body[key] = fun[key].toString(); + } + }); + return db.request({ + method: 'POST', + url: '_temp_view' + params, + body: body + }).then(postprocessAttachments(opts)); +} - // Filter children and args - var children = args.filter(function(arg) { - return arg instanceof this.constructor; - }, this); - args = args.filter(function(arg) { - return !(arg instanceof this.constructor); - }, this); +// custom adapters can define their own api._query +// and override the default behavior +/* istanbul ignore next */ +function customQuery(db, fun, opts) { + return new Promise(function (resolve, reject) { + db._query(fun, opts, function (err, res) { + if (err) { + return reject(err); + } + resolve(res); + }); + }); +} - if (children.length !== 0) { - assert(state.children === null); - state.children = children; +// custom adapters can define their own api._viewCleanup +// and override the default behavior +/* istanbul ignore next */ +function customViewCleanup(db) { + return new Promise(function (resolve, reject) { + db._viewCleanup(function (err, res) { + if (err) { + return reject(err); + } + resolve(res); + }); + }); +} - // Replace parent to maintain backward link - children.forEach(function(child) { - child._baseState.parent = this; - }, this); +function defaultsTo(value) { + return function (reason) { + /* istanbul ignore else */ + if (reason.status === 404) { + return value; + } else { + throw reason; + } + }; +} + +// returns a promise for a list of docs to update, based on the input docId. +// the order doesn't matter, because post-3.2.0, bulkDocs +// is an atomic operation in all three adapters. +function getDocsToPersist(docId, view, docIdsToChangesAndEmits) { + var metaDocId = '_local/doc_' + docId; + var defaultMetaDoc = {_id: metaDocId, keys: []}; + var docData = docIdsToChangesAndEmits[docId]; + var indexableKeysToKeyValues = docData.indexableKeysToKeyValues; + var changes = docData.changes; + + function getMetaDoc() { + if (isGenOne(changes)) { + // generation 1, so we can safely assume initial state + // for performance reasons (avoids unnecessary GETs) + return Promise.resolve(defaultMetaDoc); + } + return view.db.get(metaDocId).catch(defaultsTo(defaultMetaDoc)); } - if (args.length !== 0) { - assert(state.args === null); - state.args = args; - state.reverseArgs = args.map(function(arg) { - if (typeof arg !== 'object' || arg.constructor !== Object) - return arg; - var res = {}; - Object.keys(arg).forEach(function(key) { - if (key == (key | 0)) - key |= 0; - var value = arg[key]; - res[value] = key; - }); - return res; + function getKeyValueDocs(metaDoc) { + if (!metaDoc.keys.length) { + // no keys, no need for a lookup + return Promise.resolve({rows: []}); + } + return view.db.allDocs({ + keys: metaDoc.keys, + include_docs: true }); } -}; -// -// Overrided methods -// - -overrided.forEach(function(method) { - Node.prototype[method] = function _overrided() { - var state = this._baseState; - throw new Error(method + ' not implemented for encoding: ' + state.enc); - }; -}); + function processKvDocs(metaDoc, kvDocsRes) { + var kvDocs = []; + var oldKeysMap = {}; -// -// Public methods -// + for (var i = 0, len = kvDocsRes.rows.length; i < len; i++) { + var row = kvDocsRes.rows[i]; + var doc = row.doc; + if (!doc) { // deleted + continue; + } + kvDocs.push(doc); + oldKeysMap[doc._id] = true; + doc._deleted = !indexableKeysToKeyValues[doc._id]; + if (!doc._deleted) { + var keyValue = indexableKeysToKeyValues[doc._id]; + if ('value' in keyValue) { + doc.value = keyValue.value; + } + } + } -tags.forEach(function(tag) { - Node.prototype[tag] = function _tagMethod() { - var state = this._baseState; - var args = Array.prototype.slice.call(arguments); + var newKeys = Object.keys(indexableKeysToKeyValues); + newKeys.forEach(function (key) { + if (!oldKeysMap[key]) { + // new doc + var kvDoc = { + _id: key + }; + var keyValue = indexableKeysToKeyValues[key]; + if ('value' in keyValue) { + kvDoc.value = keyValue.value; + } + kvDocs.push(kvDoc); + } + }); + metaDoc.keys = pouchdbMapreduceUtils.uniq(newKeys.concat(metaDoc.keys)); + kvDocs.push(metaDoc); - assert(state.tag === null); - state.tag = tag; + return kvDocs; + } - this._useArgs(args); - - return this; - }; -}); + return getMetaDoc().then(function (metaDoc) { + return getKeyValueDocs(metaDoc).then(function (kvDocsRes) { + return processKvDocs(metaDoc, kvDocsRes); + }); + }); +} -Node.prototype.use = function use(item) { - assert(item); - var state = this._baseState; +// updates all emitted key/value docs and metaDocs in the mrview database +// for the given batch of documents from the source database +function saveKeyValues(view, docIdsToChangesAndEmits, seq) { + var seqDocId = '_local/lastSeq'; + return view.db.get(seqDocId) + .catch(defaultsTo({_id: seqDocId, seq: 0})) + .then(function (lastSeqDoc) { + var docIds = Object.keys(docIdsToChangesAndEmits); + return Promise.all(docIds.map(function (docId) { + return getDocsToPersist(docId, view, docIdsToChangesAndEmits); + })).then(function (listOfDocsToPersist) { + var docsToPersist = pouchdbUtils.flatten(listOfDocsToPersist); + lastSeqDoc.seq = seq; + docsToPersist.push(lastSeqDoc); + // write all docs in a single operation, update the seq once + return view.db.bulkDocs({docs : docsToPersist}); + }); + }); +} - assert(state.use === null); - state.use = item; +function getQueue(view) { + var viewName = typeof view === 'string' ? view : view.name; + var queue = persistentQueues[viewName]; + if (!queue) { + queue = persistentQueues[viewName] = new TaskQueue(); + } + return queue; +} - return this; -}; +function updateView(view) { + return pouchdbMapreduceUtils.sequentialize(getQueue(view), function () { + return updateViewInQueue(view); + })(); +} -Node.prototype.optional = function optional() { - var state = this._baseState; +function updateViewInQueue(view) { + // bind the emit function once + var mapResults; + var doc; - state.optional = true; + function emit(key, value) { + var output = {id: doc._id, key: pouchdbCollate.normalizeKey(key)}; + // Don't explicitly store the value unless it's defined and non-null. + // This saves on storage space, because often people don't use it. + if (typeof value !== 'undefined' && value !== null) { + output.value = pouchdbCollate.normalizeKey(value); + } + mapResults.push(output); + } - return this; -}; + var mapFun; + // for temp_views one can use emit(doc, emit), see #38 + if (typeof view.mapFun === "function" && view.mapFun.length === 2) { + var origMap = view.mapFun; + mapFun = function (doc) { + return origMap(doc, emit); + }; + } else { + mapFun = evalfunc(view.mapFun.toString(), emit, sum, log, Array.isArray, + JSON.parse); + } -Node.prototype.def = function def(val) { - var state = this._baseState; + var currentSeq = view.seq || 0; - assert(state['default'] === null); - state['default'] = val; - state.optional = true; + function processChange(docIdsToChangesAndEmits, seq) { + return function () { + return saveKeyValues(view, docIdsToChangesAndEmits, seq); + }; + } - return this; -}; + var queue = new TaskQueue(); + // TODO(neojski): https://github.com/daleharvey/pouchdb/issues/1521 -Node.prototype.explicit = function explicit(num) { - var state = this._baseState; + return new Promise(function (resolve, reject) { - assert(state.explicit === null && state.implicit === null); - state.explicit = num; + function complete() { + queue.finish().then(function () { + view.seq = currentSeq; + resolve(); + }); + } - return this; -}; + function processNextBatch() { + view.sourceDB.changes({ + conflicts: true, + include_docs: true, + style: 'all_docs', + since: currentSeq, + limit: CHANGES_BATCH_SIZE + }).on('complete', function (response) { + var results = response.results; + if (!results.length) { + return complete(); + } + var docIdsToChangesAndEmits = {}; + for (var i = 0, l = results.length; i < l; i++) { + var change = results[i]; + if (change.doc._id[0] !== '_') { + mapResults = []; + doc = change.doc; -Node.prototype.implicit = function implicit(num) { - var state = this._baseState; + if (!doc._deleted) { + tryCode(view.sourceDB, mapFun, [doc]); + } + mapResults.sort(sortByKeyThenValue); - assert(state.explicit === null && state.implicit === null); - state.implicit = num; + var indexableKeysToKeyValues = {}; + var lastKey; + for (var j = 0, jl = mapResults.length; j < jl; j++) { + var obj = mapResults[j]; + var complexKey = [obj.key, obj.id]; + if (pouchdbCollate.collate(obj.key, lastKey) === 0) { + complexKey.push(j); // dup key+id, so make it unique + } + var indexableKey = pouchdbCollate.toIndexableString(complexKey); + indexableKeysToKeyValues[indexableKey] = obj; + lastKey = obj.key; + } + docIdsToChangesAndEmits[change.doc._id] = { + indexableKeysToKeyValues: indexableKeysToKeyValues, + changes: change.changes + }; + } + currentSeq = change.seq; + } + queue.add(processChange(docIdsToChangesAndEmits, currentSeq)); + if (results.length < CHANGES_BATCH_SIZE) { + return complete(); + } + return processNextBatch(); + }).on('error', onError); + /* istanbul ignore next */ + function onError(err) { + reject(err); + } + } - return this; -}; + processNextBatch(); + }); +} -Node.prototype.obj = function obj() { - var state = this._baseState; - var args = Array.prototype.slice.call(arguments); +function reduceView(view, results, options) { + if (options.group_level === 0) { + delete options.group_level; + } - state.obj = true; + var shouldGroup = options.group || options.group_level; - if (args.length !== 0) - this._useArgs(args); + var reduceFun; + if (builtInReduce[view.reduceFun]) { + reduceFun = builtInReduce[view.reduceFun]; + } else { + reduceFun = evalfunc( + view.reduceFun.toString(), null, sum, log, Array.isArray, JSON.parse); + } - return this; -}; + var groups = []; + var lvl = isNaN(options.group_level) ? Number.POSITIVE_INFINITY : + options.group_level; + results.forEach(function (e) { + var last = groups[groups.length - 1]; + var groupKey = shouldGroup ? e.key : null; -Node.prototype.key = function key(newKey) { - var state = this._baseState; + // only set group_level for array keys + if (shouldGroup && Array.isArray(groupKey)) { + groupKey = groupKey.slice(0, lvl); + } - assert(state.key === null); - state.key = newKey; + if (last && pouchdbCollate.collate(last.groupKey, groupKey) === 0) { + last.keys.push([e.key, e.id]); + last.values.push(e.value); + return; + } + groups.push({ + keys: [[e.key, e.id]], + values: [e.value], + groupKey: groupKey + }); + }); + results = []; + for (var i = 0, len = groups.length; i < len; i++) { + var e = groups[i]; + var reduceTry = tryCode(view.sourceDB, reduceFun, + [e.keys, e.values, false]); + if (reduceTry.error && reduceTry.error instanceof BuiltInError) { + // CouchDB returns an error if a built-in errors out + throw reduceTry.error; + } + results.push({ + // CouchDB just sets the value to null if a non-built-in errors out + value: reduceTry.error ? null : reduceTry.output, + key: e.groupKey + }); + } + // no total_rows/offset when reducing + return {rows: sliceResults(results, options.limit, options.skip)}; +} - return this; -}; +function queryView(view, opts) { + return pouchdbMapreduceUtils.sequentialize(getQueue(view), function () { + return queryViewInQueue(view, opts); + })(); +} -Node.prototype.any = function any() { - var state = this._baseState; +function queryViewInQueue(view, opts) { + var totalRows; + var shouldReduce = view.reduceFun && opts.reduce !== false; + var skip = opts.skip || 0; + if (typeof opts.keys !== 'undefined' && !opts.keys.length) { + // equivalent query + opts.limit = 0; + delete opts.keys; + } - state.any = true; + function fetchFromView(viewOpts) { + viewOpts.include_docs = true; + return view.db.allDocs(viewOpts).then(function (res) { + totalRows = res.total_rows; + return res.rows.map(function (result) { - return this; -}; - -Node.prototype.choice = function choice(obj) { - var state = this._baseState; - - assert(state.choice === null); - state.choice = obj; - this._useArgs(Object.keys(obj).map(function(key) { - return obj[key]; - })); - - return this; -}; - -Node.prototype.contains = function contains(item) { - var state = this._baseState; - - assert(state.use === null); - state.contains = item; - - return this; -}; - -// -// Decoding -// - -Node.prototype._decode = function decode(input, options) { - var state = this._baseState; - - // Decode root node - if (state.parent === null) - return input.wrapResult(state.children[0]._decode(input, options)); - - var result = state['default']; - var present = true; - - var prevKey = null; - if (state.key !== null) - prevKey = input.enterKey(state.key); + // implicit migration - in older versions of PouchDB, + // we explicitly stored the doc as {id: ..., key: ..., value: ...} + // this is tested in a migration test + /* istanbul ignore next */ + if ('value' in result.doc && typeof result.doc.value === 'object' && + result.doc.value !== null) { + var keys = Object.keys(result.doc.value).sort(); + // this detection method is not perfect, but it's unlikely the user + // emitted a value which was an object with these 3 exact keys + var expectedKeys = ['id', 'key', 'value']; + if (!(keys < expectedKeys || keys > expectedKeys)) { + return result.doc.value; + } + } - // Check if tag is there - if (state.optional) { - var tag = null; - if (state.explicit !== null) - tag = state.explicit; - else if (state.implicit !== null) - tag = state.implicit; - else if (state.tag !== null) - tag = state.tag; + var parsedKeyAndDocId = pouchdbCollate.parseIndexableString(result.doc._id); + return { + key: parsedKeyAndDocId[0], + id: parsedKeyAndDocId[1], + value: ('value' in result.doc ? result.doc.value : null) + }; + }); + }); + } - if (tag === null && !state.any) { - // Trial and Error - var save = input.save(); - try { - if (state.choice === null) - this._decodeGeneric(state.tag, input, options); - else - this._decodeChoice(input, options); - present = true; - } catch (e) { - present = false; - } - input.restore(save); + function onMapResultsReady(rows) { + var finalResults; + if (shouldReduce) { + finalResults = reduceView(view, rows, opts); } else { - present = this._peekTag(input, tag, state.any); + finalResults = { + total_rows: totalRows, + offset: skip, + rows: rows + }; + } + if (opts.include_docs) { + var docIds = pouchdbMapreduceUtils.uniq(rows.map(rowToDocId)); - if (input.isError(present)) - return present; + return view.sourceDB.allDocs({ + keys: docIds, + include_docs: true, + conflicts: opts.conflicts, + attachments: opts.attachments, + binary: opts.binary + }).then(function (allDocsRes) { + var docIdsToDocs = {}; + allDocsRes.rows.forEach(function (row) { + if (row.doc) { + docIdsToDocs['$' + row.id] = row.doc; + } + }); + rows.forEach(function (row) { + var docId = rowToDocId(row); + var doc = docIdsToDocs['$' + docId]; + if (doc) { + row.doc = doc; + } + }); + return finalResults; + }); + } else { + return finalResults; } } - // Push object on stack - var prevObj; - if (state.obj && present) - prevObj = input.enterObject(); - - if (present) { - // Unwrap explicit values - if (state.explicit !== null) { - var explicit = this._decodeTag(input, state.explicit); - if (input.isError(explicit)) - return explicit; - input = explicit; + if (typeof opts.keys !== 'undefined') { + var keys = opts.keys; + var fetchPromises = keys.map(function (key) { + var viewOpts = { + startkey : pouchdbCollate.toIndexableString([key]), + endkey : pouchdbCollate.toIndexableString([key, {}]) + }; + return fetchFromView(viewOpts); + }); + return Promise.all(fetchPromises).then(pouchdbUtils.flatten).then(onMapResultsReady); + } else { // normal query, no 'keys' + var viewOpts = { + descending : opts.descending + }; + if (opts.start_key) { + opts.startkey = opts.start_key; } - - var start = input.offset; - - // Unwrap implicit and normal values - if (state.use === null && state.choice === null) { - if (state.any) - var save = input.save(); - var body = this._decodeTag( - input, - state.implicit !== null ? state.implicit : state.tag, - state.any - ); - if (input.isError(body)) - return body; - - if (state.any) - result = input.raw(save); - else - input = body; + if (opts.end_key) { + opts.endkey = opts.end_key; } - - if (options && options.track && state.tag !== null) - options.track(input.path(), start, input.length, 'tagged'); - - if (options && options.track && state.tag !== null) - options.track(input.path(), input.offset, input.length, 'content'); - - // Select proper method for tag - if (state.any) - result = result; - else if (state.choice === null) - result = this._decodeGeneric(state.tag, input, options); - else - result = this._decodeChoice(input, options); - - if (input.isError(result)) - return result; - - // Decode children - if (!state.any && state.choice === null && state.children !== null) { - state.children.forEach(function decodeChildren(child) { - // NOTE: We are ignoring errors here, to let parser continue with other - // parts of encoded data - child._decode(input, options); - }); + if (typeof opts.startkey !== 'undefined') { + viewOpts.startkey = opts.descending ? + pouchdbCollate.toIndexableString([opts.startkey, {}]) : + pouchdbCollate.toIndexableString([opts.startkey]); } + if (typeof opts.endkey !== 'undefined') { + var inclusiveEnd = opts.inclusive_end !== false; + if (opts.descending) { + inclusiveEnd = !inclusiveEnd; + } - // Decode contained/encoded by schema, only in bit or octet strings - if (state.contains && (state.tag === 'octstr' || state.tag === 'bitstr')) { - var data = new DecoderBuffer(result); - result = this._getUse(state.contains, input._reporterState.obj) - ._decode(data, options); + viewOpts.endkey = pouchdbCollate.toIndexableString( + inclusiveEnd ? [opts.endkey, {}] : [opts.endkey]); + } + if (typeof opts.key !== 'undefined') { + var keyStart = pouchdbCollate.toIndexableString([opts.key]); + var keyEnd = pouchdbCollate.toIndexableString([opts.key, {}]); + if (viewOpts.descending) { + viewOpts.endkey = keyStart; + viewOpts.startkey = keyEnd; + } else { + viewOpts.startkey = keyStart; + viewOpts.endkey = keyEnd; + } + } + if (!shouldReduce) { + if (typeof opts.limit === 'number') { + viewOpts.limit = opts.limit; + } + viewOpts.skip = skip; } + return fetchFromView(viewOpts).then(onMapResultsReady); } +} - // Pop object - if (state.obj && present) - result = input.leaveObject(prevObj); - - // Set key - if (state.key !== null && (result !== null || present === true)) - input.leaveKey(prevKey, state.key, result); - else if (prevKey !== null) - input.exitKey(prevKey); - - return result; -}; - -Node.prototype._decodeGeneric = function decodeGeneric(tag, input, options) { - var state = this._baseState; +function httpViewCleanup(db) { + return db.request({ + method: 'POST', + url: '_view_cleanup' + }); +} - if (tag === 'seq' || tag === 'set') - return null; - if (tag === 'seqof' || tag === 'setof') - return this._decodeList(input, tag, state.args[0], options); - else if (/str$/.test(tag)) - return this._decodeStr(input, tag, options); - else if (tag === 'objid' && state.args) - return this._decodeObjid(input, state.args[0], state.args[1], options); - else if (tag === 'objid') - return this._decodeObjid(input, null, null, options); - else if (tag === 'gentime' || tag === 'utctime') - return this._decodeTime(input, tag, options); - else if (tag === 'null_') - return this._decodeNull(input, options); - else if (tag === 'bool') - return this._decodeBool(input, options); - else if (tag === 'objDesc') - return this._decodeStr(input, tag, options); - else if (tag === 'int' || tag === 'enum') - return this._decodeInt(input, state.args && state.args[0], options); +function localViewCleanup(db) { + return db.get('_local/mrviews').then(function (metaDoc) { + var docsToViews = {}; + Object.keys(metaDoc.views).forEach(function (fullViewName) { + var parts = parseViewName(fullViewName); + var designDocName = '_design/' + parts[0]; + var viewName = parts[1]; + docsToViews[designDocName] = docsToViews[designDocName] || {}; + docsToViews[designDocName][viewName] = true; + }); + var opts = { + keys : Object.keys(docsToViews), + include_docs : true + }; + return db.allDocs(opts).then(function (res) { + var viewsToStatus = {}; + res.rows.forEach(function (row) { + var ddocName = row.key.substring(8); + Object.keys(docsToViews[row.key]).forEach(function (viewName) { + var fullViewName = ddocName + '/' + viewName; + /* istanbul ignore if */ + if (!metaDoc.views[fullViewName]) { + // new format, without slashes, to support PouchDB 2.2.0 + // migration test in pouchdb's browser.migration.js verifies this + fullViewName = viewName; + } + var viewDBNames = Object.keys(metaDoc.views[fullViewName]); + // design doc deleted, or view function nonexistent + var statusIsGood = row.doc && row.doc.views && + row.doc.views[viewName]; + viewDBNames.forEach(function (viewDBName) { + viewsToStatus[viewDBName] = + viewsToStatus[viewDBName] || statusIsGood; + }); + }); + }); + var dbsToDelete = Object.keys(viewsToStatus).filter( + function (viewDBName) { return !viewsToStatus[viewDBName]; }); + var destroyPromises = dbsToDelete.map(function (viewDBName) { + return pouchdbMapreduceUtils.sequentialize(getQueue(viewDBName), function () { + return new db.constructor(viewDBName, db.__opts).destroy(); + })(); + }); + return Promise.all(destroyPromises).then(function () { + return {ok: true}; + }); + }); + }, defaultsTo({ok: true})); +} - if (state.use !== null) { - return this._getUse(state.use, input._reporterState.obj) - ._decode(input, options); - } else { - return input.error('unknown tag: ' + tag); +var viewCleanup = pouchdbMapreduceUtils.callbackify(function () { + var db = this; + if (db.type() === 'http') { + return httpViewCleanup(db); } -}; - -Node.prototype._getUse = function _getUse(entity, obj) { + /* istanbul ignore next */ + if (typeof db._viewCleanup === 'function') { + return customViewCleanup(db); + } + return localViewCleanup(db); +}); - var state = this._baseState; - // Create altered use decoder if implicit is set - state.useDecoder = this._use(entity, obj); - assert(state.useDecoder._baseState.parent === null); - state.useDecoder = state.useDecoder._baseState.children[0]; - if (state.implicit !== state.useDecoder._baseState.implicit) { - state.useDecoder = state.useDecoder.clone(); - state.useDecoder._baseState.implicit = state.implicit; +function queryPromised(db, fun, opts) { + if (db.type() === 'http') { + return httpQuery(db, fun, opts); } - return state.useDecoder; -}; -Node.prototype._decodeChoice = function decodeChoice(input, options) { - var state = this._baseState; - var result = null; - var match = false; + /* istanbul ignore next */ + if (typeof db._query === 'function') { + return customQuery(db, fun, opts); + } - Object.keys(state.choice).some(function(key) { - var save = input.save(); - var node = state.choice[key]; - try { - var value = node._decode(input, options); - if (input.isError(value)) - return false; + function onViewReady(view) { + if (opts.stale === 'ok' || opts.stale === 'update_after') { + if (opts.stale === 'update_after') { + process.nextTick(function () { + updateView(view); + }); + } + return queryView(view, opts); + } else { // stale not ok + return updateView(view).then(function () { + return queryView(view, opts); + }); + } + } - result = { type: key, value: value }; - match = true; - } catch (e) { - input.restore(save); - return false; + if (opts.saveAs) { + var autoOptions = { + db: db, + saveAs: opts.saveAs, + map: fun.map, + reduce: fun.reduce + }; + if (opts.destroy) { + return createView(autoOptions).then(function (view) { + return view.db.destroy(); + }); } - return true; - }, this); + checkQueryParseError(opts, fun); + return createView(autoOptions).then(onViewReady); + } - if (!match) - return input.error('Choice not matched'); + if (typeof fun !== 'string') { + // temp_view + checkQueryParseError(opts, fun); - return result; -}; + var createViewOpts = { + db : db, + viewName : 'temp_view/temp_view', + map : fun.map, + reduce : fun.reduce, + temporary : true + }; + tempViewQueue.add(function () { + return createView(createViewOpts).then(function (view) { + function cleanup() { + return view.db.destroy(); + } + return pouchdbMapreduceUtils.fin(updateView(view).then(function () { + return queryView(view, opts); + }), cleanup); + }); + }); + return tempViewQueue.finish(); + } -// -// Encoding -// -Node.prototype._createEncoderBuffer = function createEncoderBuffer(data) { - return new EncoderBuffer(data, this.reporter); -}; + // persistent view + var fullViewName = fun; + var parts = parseViewName(fullViewName); + var designDocName = parts[0]; + var viewName = parts[1]; + return db.get('_design/' + designDocName).then(function (doc) { + var fun = doc.views && doc.views[viewName]; -Node.prototype._encode = function encode(data, reporter, parent) { - var state = this._baseState; - if (state['default'] !== null && state['default'] === data) - return; + if (!fun || typeof fun.map !== 'string') { + throw new NotFoundError('ddoc ' + designDocName + + ' has no view named ' + viewName); + } + checkQueryParseError(opts, fun); - var result = this._encodeValue(data, reporter, parent); - if (result === undefined) - return; + var createViewOpts = { + db : db, + viewName : fullViewName, + map : fun.map, + reduce : fun.reduce + }; - if (this._skipDefault(result, reporter, parent)) - return; + return createView(createViewOpts).then(onViewReady); + }); - return result; -}; +} -Node.prototype._encodeValue = function encode(data, reporter, parent) { - var state = this._baseState; +var query = function (fun, opts, callback) { + if (typeof opts === 'function') { + callback = opts; + opts = {}; + } + opts = opts ? coerceOptions(opts) : {}; - // Decode root node - if (state.parent === null) - return state.children[0]._encode(data, reporter || new Reporter()); + if (typeof fun === 'function') { + fun = {map : fun}; + } - var result = null; + if (fun.saveAs) { + opts.saveAs = fun.saveAs; + delete fun.saveAs; + } - // Set reporter to share it with a child class - this.reporter = reporter; + var db = this; + var promise = Promise.resolve().then(function () { + return queryPromised(db, fun, opts); + }); + pouchdbMapreduceUtils.promisedCallback(promise, callback); + return promise; +}; - // Check if data is there - if (state.optional && data === undefined) { - if (state['default'] !== null) - data = state['default'] - else - return; - } +function QueryParseError(message) { + this.status = 400; + this.name = 'query_parse_error'; + this.message = message; + this.error = true; + try { + Error.captureStackTrace(this, QueryParseError); + } catch (e) {} +} - // Encode children first - var content = null; - var primitive = false; - if (state.any) { - // Anything that was given is translated to buffer - result = this._createEncoderBuffer(data); - } else if (state.choice) { - result = this._encodeChoice(data, reporter); - } else if (state.contains) { - content = this._getUse(state.contains, parent)._encode(data, reporter); - primitive = true; - } else if (state.children) { - content = state.children.map(function(child) { - if (child._baseState.tag === 'null_') - return child._encode(null, reporter, data); - - if (child._baseState.key === null) - return reporter.error('Child should have a key'); - var prevKey = reporter.enterKey(child._baseState.key); +inherits(QueryParseError, Error); - if (typeof data !== 'object') - return reporter.error('Child expected, but input is not object'); +function NotFoundError(message) { + this.status = 404; + this.name = 'not_found'; + this.message = message; + this.error = true; + try { + Error.captureStackTrace(this, NotFoundError); + } catch (e) {} +} - var res = child._encode(data[child._baseState.key], reporter, data); - reporter.leaveKey(prevKey); +inherits(NotFoundError, Error); - return res; - }, this).filter(function(child) { - return child; - }); - content = this._createEncoderBuffer(content); - } else { - if (state.tag === 'seqof' || state.tag === 'setof') { - // TODO(indutny): this should be thrown on DSL level - if (!(state.args && state.args.length === 1)) - return reporter.error('Too many args for : ' + state.tag); +function BuiltInError(message) { + this.status = 500; + this.name = 'invalid_value'; + this.message = message; + this.error = true; + try { + Error.captureStackTrace(this, BuiltInError); + } catch (e) {} +} - if (!Array.isArray(data)) - return reporter.error('seqof/setof, but data is not Array'); +inherits(BuiltInError, Error); - var child = this.clone(); - child._baseState.implicit = null; - content = this._createEncoderBuffer(data.map(function(item) { - var state = this._baseState; +var index = { + _search_query: query, + _search_viewCleanup: viewCleanup +}; - return this._getUse(state.args[0], data)._encode(item, reporter); - }, child)); - } else if (state.use !== null) { - result = this._getUse(state.use, parent)._encode(data, reporter); - } else { - content = this._encodePrimitive(state.tag, data); - primitive = true; - } +module.exports = index; +}).call(this,require(149)) +},{"131":131,"132":132,"138":138,"140":140,"144":144,"149":149,"160":160,"3":3,"5":5}],3:[function(require,module,exports){ +if (typeof Object.create === 'function') { + // implementation from standard node.js 'util' module + module.exports = function inherits(ctor, superCtor) { + ctor.super_ = superCtor + ctor.prototype = Object.create(superCtor.prototype, { + constructor: { + value: ctor, + enumerable: false, + writable: true, + configurable: true + } + }); + }; +} else { + // old school shim for old browsers + module.exports = function inherits(ctor, superCtor) { + ctor.super_ = superCtor + var TempCtor = function () {} + TempCtor.prototype = superCtor.prototype + ctor.prototype = new TempCtor() + ctor.prototype.constructor = ctor } +} - // Encode data itself - var result; - if (!state.any && state.choice === null) { - var tag = state.implicit !== null ? state.implicit : state.tag; - var cls = state.implicit === null ? 'universal' : 'context'; +},{}],4:[function(require,module,exports){ +'use strict'; +var immediate = require(107); - if (tag === null) { - if (state.use === null) - reporter.error('Tag could be ommited only for .use()'); - } else { - if (state.use === null) - result = this._encodeComposite(tag, primitive, cls, content); - } - } +/* istanbul ignore next */ +function INTERNAL() {} - // Wrap in explicit - if (state.explicit !== null) - result = this._encodeComposite(state.explicit, false, 'context', result); +var handlers = {}; - return result; -}; +var REJECTED = ['REJECTED']; +var FULFILLED = ['FULFILLED']; +var PENDING = ['PENDING']; -Node.prototype._encodeChoice = function encodeChoice(data, reporter) { - var state = this._baseState; +module.exports = Promise; - var node = state.choice[data.type]; - if (!node) { - assert( - false, - data.type + ' not found in ' + - JSON.stringify(Object.keys(state.choice))); +function Promise(resolver) { + if (typeof resolver !== 'function') { + throw new TypeError('resolver must be a function'); } - return node._encode(data.value, reporter); -}; - -Node.prototype._encodePrimitive = function encodePrimitive(tag, data) { - var state = this._baseState; - - if (/str$/.test(tag)) - return this._encodeStr(data, tag); - else if (tag === 'objid' && state.args) - return this._encodeObjid(data, state.reverseArgs[0], state.args[1]); - else if (tag === 'objid') - return this._encodeObjid(data, null, null); - else if (tag === 'gentime' || tag === 'utctime') - return this._encodeTime(data, tag); - else if (tag === 'null_') - return this._encodeNull(); - else if (tag === 'int' || tag === 'enum') - return this._encodeInt(data, state.args && state.reverseArgs[0]); - else if (tag === 'bool') - return this._encodeBool(data); - else if (tag === 'objDesc') - return this._encodeStr(data, tag); - else - throw new Error('Unsupported tag: ' + tag); -}; + this.state = PENDING; + this.queue = []; + this.outcome = void 0; + if (resolver !== INTERNAL) { + safelyResolveThenable(this, resolver); + } +} -Node.prototype._isNumstr = function isNumstr(str) { - return /^[0-9 ]*$/.test(str); +Promise.prototype["catch"] = function (onRejected) { + return this.then(null, onRejected); }; +Promise.prototype.then = function (onFulfilled, onRejected) { + if (typeof onFulfilled !== 'function' && this.state === FULFILLED || + typeof onRejected !== 'function' && this.state === REJECTED) { + return this; + } + var promise = new this.constructor(INTERNAL); + if (this.state !== PENDING) { + var resolver = this.state === FULFILLED ? onFulfilled : onRejected; + unwrap(promise, resolver, this.outcome); + } else { + this.queue.push(new QueueItem(promise, onFulfilled, onRejected)); + } -Node.prototype._isPrintstr = function isPrintstr(str) { - return /^[A-Za-z0-9 '\(\)\+,\-\.\/:=\?]*$/.test(str); + return promise; }; - -},{"106":106,"6":6}],8:[function(require,module,exports){ -var inherits = require(97); - -function Reporter(options) { - this._reporterState = { - obj: null, - path: [], - options: options || {}, - errors: [] - }; +function QueueItem(promise, onFulfilled, onRejected) { + this.promise = promise; + if (typeof onFulfilled === 'function') { + this.onFulfilled = onFulfilled; + this.callFulfilled = this.otherCallFulfilled; + } + if (typeof onRejected === 'function') { + this.onRejected = onRejected; + this.callRejected = this.otherCallRejected; + } } -exports.Reporter = Reporter; - -Reporter.prototype.isError = function isError(obj) { - return obj instanceof ReporterError; +QueueItem.prototype.callFulfilled = function (value) { + handlers.resolve(this.promise, value); }; - -Reporter.prototype.save = function save() { - var state = this._reporterState; - - return { obj: state.obj, pathLen: state.path.length }; +QueueItem.prototype.otherCallFulfilled = function (value) { + unwrap(this.promise, this.onFulfilled, value); }; - -Reporter.prototype.restore = function restore(data) { - var state = this._reporterState; - - state.obj = data.obj; - state.path = state.path.slice(0, data.pathLen); +QueueItem.prototype.callRejected = function (value) { + handlers.reject(this.promise, value); }; - -Reporter.prototype.enterKey = function enterKey(key) { - return this._reporterState.path.push(key); +QueueItem.prototype.otherCallRejected = function (value) { + unwrap(this.promise, this.onRejected, value); }; -Reporter.prototype.exitKey = function exitKey(index) { - var state = this._reporterState; - - state.path = state.path.slice(0, index - 1); -}; +function unwrap(promise, func, value) { + immediate(function () { + var returnValue; + try { + returnValue = func(value); + } catch (e) { + return handlers.reject(promise, e); + } + if (returnValue === promise) { + handlers.reject(promise, new TypeError('Cannot resolve promise with itself')); + } else { + handlers.resolve(promise, returnValue); + } + }); +} -Reporter.prototype.leaveKey = function leaveKey(index, key, value) { - var state = this._reporterState; +handlers.resolve = function (self, value) { + var result = tryCatch(getThen, value); + if (result.status === 'error') { + return handlers.reject(self, result.value); + } + var thenable = result.value; - this.exitKey(index); - if (state.obj !== null) - state.obj[key] = value; + if (thenable) { + safelyResolveThenable(self, thenable); + } else { + self.state = FULFILLED; + self.outcome = value; + var i = -1; + var len = self.queue.length; + while (++i < len) { + self.queue[i].callFulfilled(value); + } + } + return self; }; - -Reporter.prototype.path = function path() { - return this._reporterState.path.join('/'); +handlers.reject = function (self, error) { + self.state = REJECTED; + self.outcome = error; + var i = -1; + var len = self.queue.length; + while (++i < len) { + self.queue[i].callRejected(error); + } + return self; }; -Reporter.prototype.enterObject = function enterObject() { - var state = this._reporterState; +function getThen(obj) { + // Make sure we only access the accessor once as required by the spec + var then = obj && obj.then; + if (obj && (typeof obj === 'object' || typeof obj === 'function') && typeof then === 'function') { + return function appyThen() { + then.apply(obj, arguments); + }; + } +} - var prev = state.obj; - state.obj = {}; - return prev; -}; +function safelyResolveThenable(self, thenable) { + // Either fulfill, reject or reject with error + var called = false; + function onError(value) { + if (called) { + return; + } + called = true; + handlers.reject(self, value); + } -Reporter.prototype.leaveObject = function leaveObject(prev) { - var state = this._reporterState; + function onSuccess(value) { + if (called) { + return; + } + called = true; + handlers.resolve(self, value); + } - var now = state.obj; - state.obj = prev; - return now; -}; + function tryToUnwrap() { + thenable(onSuccess, onError); + } -Reporter.prototype.error = function error(msg) { - var err; - var state = this._reporterState; + var result = tryCatch(tryToUnwrap); + if (result.status === 'error') { + onError(result.value); + } +} - var inherited = msg instanceof ReporterError; - if (inherited) { - err = msg; - } else { - err = new ReporterError(state.path.map(function(elem) { - return '[' + JSON.stringify(elem) + ']'; - }).join(''), msg.message || msg, msg.stack); +function tryCatch(func, value) { + var out = {}; + try { + out.value = func(value); + out.status = 'success'; + } catch (e) { + out.status = 'error'; + out.value = e; } + return out; +} - if (!state.options.partial) - throw err; +Promise.resolve = resolve; +function resolve(value) { + if (value instanceof this) { + return value; + } + return handlers.resolve(new this(INTERNAL), value); +} - if (!inherited) - state.errors.push(err); +Promise.reject = reject; +function reject(reason) { + var promise = new this(INTERNAL); + return handlers.reject(promise, reason); +} - return err; -}; +Promise.all = all; +function all(iterable) { + var self = this; + if (Object.prototype.toString.call(iterable) !== '[object Array]') { + return this.reject(new TypeError('must be an array')); + } -Reporter.prototype.wrapResult = function wrapResult(result) { - var state = this._reporterState; - if (!state.options.partial) - return result; + var len = iterable.length; + var called = false; + if (!len) { + return this.resolve([]); + } - return { - result: this.isError(result) ? null : result, - errors: state.errors - }; -}; + var values = new Array(len); + var resolved = 0; + var i = -1; + var promise = new this(INTERNAL); -function ReporterError(path, msg) { - this.path = path; - this.rethrow(msg); -}; -inherits(ReporterError, Error); + while (++i < len) { + allResolver(iterable[i], i); + } + return promise; + function allResolver(value, i) { + self.resolve(value).then(resolveFromAll, function (error) { + if (!called) { + called = true; + handlers.reject(promise, error); + } + }); + function resolveFromAll(outValue) { + values[i] = outValue; + if (++resolved === len && !called) { + called = true; + handlers.resolve(promise, values); + } + } + } +} -ReporterError.prototype.rethrow = function rethrow(msg) { - this.message = msg + ' at: ' + (this.path || '(shallow)'); - if (Error.captureStackTrace) - Error.captureStackTrace(this, ReporterError); +Promise.race = race; +function race(iterable) { + var self = this; + if (Object.prototype.toString.call(iterable) !== '[object Array]') { + return this.reject(new TypeError('must be an array')); + } - if (!this.stack) { - try { - // IE only adds stack when thrown - throw new Error(this.message); - } catch (e) { - this.stack = e.stack; - } + var len = iterable.length; + var called = false; + if (!len) { + return this.resolve([]); } - return this; -}; -},{"97":97}],9:[function(require,module,exports){ -var constants = require(10); + var i = -1; + var promise = new this(INTERNAL); -exports.tagClass = { - 0: 'universal', - 1: 'application', - 2: 'context', - 3: 'private' -}; -exports.tagClassByName = constants._reverse(exports.tagClass); + while (++i < len) { + resolver(iterable[i]); + } + return promise; + function resolver(value) { + self.resolve(value).then(function (response) { + if (!called) { + called = true; + handlers.resolve(promise, response); + } + }, function (error) { + if (!called) { + called = true; + handlers.reject(promise, error); + } + }); + } +} -exports.tag = { - 0x00: 'end', - 0x01: 'bool', - 0x02: 'int', - 0x03: 'bitstr', - 0x04: 'octstr', - 0x05: 'null_', - 0x06: 'objid', - 0x07: 'objDesc', - 0x08: 'external', - 0x09: 'real', - 0x0a: 'enum', - 0x0b: 'embed', - 0x0c: 'utf8str', - 0x0d: 'relativeOid', - 0x10: 'seq', - 0x11: 'set', - 0x12: 'numstr', - 0x13: 'printstr', - 0x14: 't61str', - 0x15: 'videostr', - 0x16: 'ia5str', - 0x17: 'utctime', - 0x18: 'gentime', - 0x19: 'graphstr', - 0x1a: 'iso646str', - 0x1b: 'genstr', - 0x1c: 'unistr', - 0x1d: 'charstr', - 0x1e: 'bmpstr' -}; -exports.tagByName = constants._reverse(exports.tag); +},{"107":107}],5:[function(require,module,exports){ +'use strict'; -},{"10":10}],10:[function(require,module,exports){ -var constants = exports; +function _interopDefault (ex) { return (ex && (typeof ex === 'object') && 'default' in ex) ? ex['default'] : ex; } -// Helper -constants._reverse = function reverse(map) { - var res = {}; +var lie = _interopDefault(require(4)); - Object.keys(map).forEach(function(key) { - // Convert key to integer if it is stringified - if ((key | 0) == key) - key = key | 0; +/* istanbul ignore next */ +var PouchPromise = typeof Promise === 'function' ? Promise : lie; - var value = map[key]; - res[value] = key; - }); +module.exports = PouchPromise; - return res; -}; +},{"4":4}],6:[function(require,module,exports){ +'use strict'; -constants.der = require(9); +module.exports = argsArray; -},{"9":9}],11:[function(require,module,exports){ -var inherits = require(97); +function argsArray(fun) { + return function () { + var len = arguments.length; + if (len) { + var args = []; + var i = -1; + while (++i < len) { + args[i] = arguments[i]; + } + return fun.call(this, args); + } else { + return fun.call(this, []); + } + }; +} +},{}],7:[function(require,module,exports){ +var asn1 = exports; -var asn1 = require(3); -var base = asn1.base; -var bignum = asn1.bignum; +asn1.bignum = require(22); -// Import DER constants -var der = asn1.constants.der; +asn1.define = require(8).define; +asn1.base = require(10); +asn1.constants = require(14); +asn1.decoders = require(16); +asn1.encoders = require(19); -function DERDecoder(entity) { - this.enc = 'der'; - this.name = entity.name; - this.entity = entity; +},{"10":10,"14":14,"16":16,"19":19,"22":22,"8":8}],8:[function(require,module,exports){ +var asn1 = require(7); +var inherits = require(109); - // Construct base tree - this.tree = new DERNode(); - this.tree._init(entity.body); +var api = exports; + +api.define = function define(name, body) { + return new Entity(name, body); }; -module.exports = DERDecoder; -DERDecoder.prototype.decode = function decode(data, options) { - if (!(data instanceof base.DecoderBuffer)) - data = new base.DecoderBuffer(data, options); +function Entity(name, body) { + this.name = name; + this.body = body; - return this.tree._decode(data, options); + this.decoders = {}; + this.encoders = {}; }; -// Tree methods +Entity.prototype._createNamed = function createNamed(base) { + var named; + try { + named = require(194).runInThisContext( + '(function ' + this.name + '(entity) {\n' + + ' this._initNamed(entity);\n' + + '})' + ); + } catch (e) { + named = function (entity) { + this._initNamed(entity); + }; + } + inherits(named, base); + named.prototype._initNamed = function initnamed(entity) { + base.call(this, entity); + }; -function DERNode(parent) { - base.Node.call(this, 'der', parent); -} -inherits(DERNode, base.Node); + return new named(this); +}; -DERNode.prototype._peekTag = function peekTag(buffer, tag, any) { - if (buffer.isEmpty()) - return false; +Entity.prototype._getDecoder = function _getDecoder(enc) { + enc = enc || 'der'; + // Lazily create decoder + if (!this.decoders.hasOwnProperty(enc)) + this.decoders[enc] = this._createNamed(asn1.decoders[enc]); + return this.decoders[enc]; +}; - var state = buffer.save(); - var decodedTag = derDecodeTag(buffer, 'Failed to peek tag: "' + tag + '"'); - if (buffer.isError(decodedTag)) - return decodedTag; +Entity.prototype.decode = function decode(data, enc, options) { + return this._getDecoder(enc).decode(data, options); +}; - buffer.restore(state); +Entity.prototype._getEncoder = function _getEncoder(enc) { + enc = enc || 'der'; + // Lazily create encoder + if (!this.encoders.hasOwnProperty(enc)) + this.encoders[enc] = this._createNamed(asn1.encoders[enc]); + return this.encoders[enc]; +}; - return decodedTag.tag === tag || decodedTag.tagStr === tag || - (decodedTag.tagStr + 'of') === tag || any; +Entity.prototype.encode = function encode(data, enc, /* internal */ reporter) { + return this._getEncoder(enc).encode(data, reporter); }; -DERNode.prototype._decodeTag = function decodeTag(buffer, tag, any) { - var decodedTag = derDecodeTag(buffer, - 'Failed to decode tag of "' + tag + '"'); - if (buffer.isError(decodedTag)) - return decodedTag; +},{"109":109,"194":194,"7":7}],9:[function(require,module,exports){ +var inherits = require(109); +var Reporter = require(10).Reporter; +var Buffer = require(54).Buffer; - var len = derDecodeLen(buffer, - decodedTag.primitive, - 'Failed to get length of "' + tag + '"'); +function DecoderBuffer(base, options) { + Reporter.call(this, options); + if (!Buffer.isBuffer(base)) { + this.error('Input not Buffer'); + return; + } - // Failure - if (buffer.isError(len)) - return len; + this.base = base; + this.offset = 0; + this.length = base.length; +} +inherits(DecoderBuffer, Reporter); +exports.DecoderBuffer = DecoderBuffer; - if (!any && - decodedTag.tag !== tag && - decodedTag.tagStr !== tag && - decodedTag.tagStr + 'of' !== tag) { - return buffer.error('Failed to match tag: "' + tag + '"'); - } +DecoderBuffer.prototype.save = function save() { + return { offset: this.offset, reporter: Reporter.prototype.save.call(this) }; +}; - if (decodedTag.primitive || len !== null) - return buffer.skip(len, 'Failed to match body of: "' + tag + '"'); +DecoderBuffer.prototype.restore = function restore(save) { + // Return skipped data + var res = new DecoderBuffer(this.base); + res.offset = save.offset; + res.length = this.offset; - // Indefinite length... find END tag - var state = buffer.save(); - var res = this._skipUntilEnd( - buffer, - 'Failed to skip indefinite length body: "' + this.tag + '"'); - if (buffer.isError(res)) - return res; + this.offset = save.offset; + Reporter.prototype.restore.call(this, save.reporter); - len = buffer.offset - state.offset; - buffer.restore(state); - return buffer.skip(len, 'Failed to match body of: "' + tag + '"'); + return res; }; -DERNode.prototype._skipUntilEnd = function skipUntilEnd(buffer, fail) { - while (true) { - var tag = derDecodeTag(buffer, fail); - if (buffer.isError(tag)) - return tag; - var len = derDecodeLen(buffer, tag.primitive, fail); - if (buffer.isError(len)) - return len; +DecoderBuffer.prototype.isEmpty = function isEmpty() { + return this.offset === this.length; +}; - var res; - if (tag.primitive || len !== null) - res = buffer.skip(len) - else - res = this._skipUntilEnd(buffer, fail); +DecoderBuffer.prototype.readUInt8 = function readUInt8(fail) { + if (this.offset + 1 <= this.length) + return this.base.readUInt8(this.offset++, true); + else + return this.error(fail || 'DecoderBuffer overrun'); +} - // Failure - if (buffer.isError(res)) - return res; +DecoderBuffer.prototype.skip = function skip(bytes, fail) { + if (!(this.offset + bytes <= this.length)) + return this.error(fail || 'DecoderBuffer overrun'); - if (tag.tagStr === 'end') - break; + var res = new DecoderBuffer(this.base); + + // Share reporter state + res._reporterState = this._reporterState; + + res.offset = this.offset; + res.length = this.offset + bytes; + this.offset += bytes; + return res; +} + +DecoderBuffer.prototype.raw = function raw(save) { + return this.base.slice(save ? save.offset : this.offset, this.length); +} + +function EncoderBuffer(value, reporter) { + if (Array.isArray(value)) { + this.length = 0; + this.value = value.map(function(item) { + if (!(item instanceof EncoderBuffer)) + item = new EncoderBuffer(item, reporter); + this.length += item.length; + return item; + }, this); + } else if (typeof value === 'number') { + if (!(0 <= value && value <= 0xff)) + return reporter.error('non-byte EncoderBuffer value'); + this.value = value; + this.length = 1; + } else if (typeof value === 'string') { + this.value = value; + this.length = Buffer.byteLength(value); + } else if (Buffer.isBuffer(value)) { + this.value = value; + this.length = value.length; + } else { + return reporter.error('Unsupported type: ' + typeof value); } -}; +} +exports.EncoderBuffer = EncoderBuffer; -DERNode.prototype._decodeList = function decodeList(buffer, tag, decoder, - options) { - var result = []; - while (!buffer.isEmpty()) { - var possibleEnd = this._peekTag(buffer, 'end'); - if (buffer.isError(possibleEnd)) - return possibleEnd; +EncoderBuffer.prototype.join = function join(out, offset) { + if (!out) + out = new Buffer(this.length); + if (!offset) + offset = 0; - var res = decoder.decode(buffer, 'der', options); - if (buffer.isError(res) && possibleEnd) - break; - result.push(res); + if (this.length === 0) + return out; + + if (Array.isArray(this.value)) { + this.value.forEach(function(item) { + item.join(out, offset); + offset += item.length; + }); + } else { + if (typeof this.value === 'number') + out[offset] = this.value; + else if (typeof this.value === 'string') + out.write(this.value, offset); + else if (Buffer.isBuffer(this.value)) + this.value.copy(out, offset); + offset += this.length; } - return result; + + return out; }; -DERNode.prototype._decodeStr = function decodeStr(buffer, tag) { - if (tag === 'bitstr') { - var unused = buffer.readUInt8(); - if (buffer.isError(unused)) - return unused; - return { unused: unused, data: buffer.raw() }; - } else if (tag === 'bmpstr') { - var raw = buffer.raw(); - if (raw.length % 2 === 1) - return buffer.error('Decoding of string type: bmpstr length mismatch'); +},{"10":10,"109":109,"54":54}],10:[function(require,module,exports){ +var base = exports; - var str = ''; - for (var i = 0; i < raw.length / 2; i++) { - str += String.fromCharCode(raw.readUInt16BE(i * 2)); - } - return str; - } else if (tag === 'numstr') { - var numstr = buffer.raw().toString('ascii'); - if (!this._isNumstr(numstr)) { - return buffer.error('Decoding of string type: ' + - 'numstr unsupported characters'); - } - return numstr; - } else if (tag === 'octstr') { - return buffer.raw(); - } else if (tag === 'objDesc') { - return buffer.raw(); - } else if (tag === 'printstr') { - var printstr = buffer.raw().toString('ascii'); - if (!this._isPrintstr(printstr)) { - return buffer.error('Decoding of string type: ' + - 'printstr unsupported characters'); - } - return printstr; - } else if (/str$/.test(tag)) { - return buffer.raw().toString(); - } else { - return buffer.error('Decoding of string type: ' + tag + ' unsupported'); - } -}; +base.Reporter = require(12).Reporter; +base.DecoderBuffer = require(9).DecoderBuffer; +base.EncoderBuffer = require(9).EncoderBuffer; +base.Node = require(11); -DERNode.prototype._decodeObjid = function decodeObjid(buffer, values, relative) { - var result; - var identifiers = []; - var ident = 0; - while (!buffer.isEmpty()) { - var subident = buffer.readUInt8(); - ident <<= 7; - ident |= subident & 0x7f; - if ((subident & 0x80) === 0) { - identifiers.push(ident); - ident = 0; - } - } - if (subident & 0x80) - identifiers.push(ident); +},{"11":11,"12":12,"9":9}],11:[function(require,module,exports){ +var Reporter = require(10).Reporter; +var EncoderBuffer = require(10).EncoderBuffer; +var DecoderBuffer = require(10).DecoderBuffer; +var assert = require(119); - var first = (identifiers[0] / 40) | 0; - var second = identifiers[0] % 40; +// Supported tags +var tags = [ + 'seq', 'seqof', 'set', 'setof', 'objid', 'bool', + 'gentime', 'utctime', 'null_', 'enum', 'int', 'objDesc', + 'bitstr', 'bmpstr', 'charstr', 'genstr', 'graphstr', 'ia5str', 'iso646str', + 'numstr', 'octstr', 'printstr', 't61str', 'unistr', 'utf8str', 'videostr' +]; - if (relative) - result = identifiers; - else - result = [first, second].concat(identifiers.slice(1)); +// Public methods list +var methods = [ + 'key', 'obj', 'use', 'optional', 'explicit', 'implicit', 'def', 'choice', + 'any', 'contains' +].concat(tags); - if (values) { - var tmp = values[result.join(' ')]; - if (tmp === undefined) - tmp = values[result.join('.')]; - if (tmp !== undefined) - result = tmp; - } +// Overrided methods list +var overrided = [ + '_peekTag', '_decodeTag', '_use', + '_decodeStr', '_decodeObjid', '_decodeTime', + '_decodeNull', '_decodeInt', '_decodeBool', '_decodeList', - return result; -}; + '_encodeComposite', '_encodeStr', '_encodeObjid', '_encodeTime', + '_encodeNull', '_encodeInt', '_encodeBool' +]; -DERNode.prototype._decodeTime = function decodeTime(buffer, tag) { - var str = buffer.raw().toString(); - if (tag === 'gentime') { - var year = str.slice(0, 4) | 0; - var mon = str.slice(4, 6) | 0; - var day = str.slice(6, 8) | 0; - var hour = str.slice(8, 10) | 0; - var min = str.slice(10, 12) | 0; - var sec = str.slice(12, 14) | 0; - } else if (tag === 'utctime') { - var year = str.slice(0, 2) | 0; - var mon = str.slice(2, 4) | 0; - var day = str.slice(4, 6) | 0; - var hour = str.slice(6, 8) | 0; - var min = str.slice(8, 10) | 0; - var sec = str.slice(10, 12) | 0; - if (year < 70) - year = 2000 + year; - else - year = 1900 + year; - } else { - return buffer.error('Decoding ' + tag + ' time is not supported yet'); - } +function Node(enc, parent) { + var state = {}; + this._baseState = state; - return Date.UTC(year, mon - 1, day, hour, min, sec, 0); -}; + state.enc = enc; -DERNode.prototype._decodeNull = function decodeNull(buffer) { - return null; -}; + state.parent = parent || null; + state.children = null; -DERNode.prototype._decodeBool = function decodeBool(buffer) { - var res = buffer.readUInt8(); - if (buffer.isError(res)) - return res; - else - return res !== 0; -}; + // State + state.tag = null; + state.args = null; + state.reverseArgs = null; + state.choice = null; + state.optional = false; + state.any = false; + state.obj = false; + state.use = null; + state.useDecoder = null; + state.key = null; + state['default'] = null; + state.explicit = null; + state.implicit = null; + state.contains = null; -DERNode.prototype._decodeInt = function decodeInt(buffer, values) { - // Bigint, return as it is (assume big endian) - var raw = buffer.raw(); - var res = new bignum(raw); + // Should create new instance on each method + if (!state.parent) { + state.children = []; + this._wrap(); + } +} +module.exports = Node; - if (values) - res = values[res.toString(10)] || res; +var stateProps = [ + 'enc', 'parent', 'children', 'tag', 'args', 'reverseArgs', 'choice', + 'optional', 'any', 'obj', 'use', 'alteredUse', 'key', 'default', 'explicit', + 'implicit', 'contains' +]; +Node.prototype.clone = function clone() { + var state = this._baseState; + var cstate = {}; + stateProps.forEach(function(prop) { + cstate[prop] = state[prop]; + }); + var res = new this.constructor(cstate.parent); + res._baseState = cstate; return res; }; -DERNode.prototype._use = function use(entity, obj) { - if (typeof entity === 'function') - entity = entity(obj); - return entity._getDecoder('der').tree; +Node.prototype._wrap = function wrap() { + var state = this._baseState; + methods.forEach(function(method) { + this[method] = function _wrappedMethod() { + var clone = new this.constructor(this); + state.children.push(clone); + return clone[method].apply(clone, arguments); + }; + }, this); }; -// Utility methods - -function derDecodeTag(buf, fail) { - var tag = buf.readUInt8(fail); - if (buf.isError(tag)) - return tag; - - var cls = der.tagClass[tag >> 6]; - var primitive = (tag & 0x20) === 0; +Node.prototype._init = function init(body) { + var state = this._baseState; - // Multi-octet tag - load - if ((tag & 0x1f) === 0x1f) { - var oct = tag; - tag = 0; - while ((oct & 0x80) === 0x80) { - oct = buf.readUInt8(fail); - if (buf.isError(oct)) - return oct; + assert(state.parent === null); + body.call(this); - tag <<= 7; - tag |= oct & 0x7f; - } - } else { - tag &= 0x1f; - } - var tagStr = der.tag[tag]; + // Filter children + state.children = state.children.filter(function(child) { + return child._baseState.parent === this; + }, this); + assert.equal(state.children.length, 1, 'Root node can have only one child'); +}; - return { - cls: cls, - primitive: primitive, - tag: tag, - tagStr: tagStr - }; -} +Node.prototype._useArgs = function useArgs(args) { + var state = this._baseState; -function derDecodeLen(buf, primitive, fail) { - var len = buf.readUInt8(fail); - if (buf.isError(len)) - return len; + // Filter children and args + var children = args.filter(function(arg) { + return arg instanceof this.constructor; + }, this); + args = args.filter(function(arg) { + return !(arg instanceof this.constructor); + }, this); - // Indefinite form - if (!primitive && len === 0x80) - return null; + if (children.length !== 0) { + assert(state.children === null); + state.children = children; - // Definite form - if ((len & 0x80) === 0) { - // Short form - return len; + // Replace parent to maintain backward link + children.forEach(function(child) { + child._baseState.parent = this; + }, this); } + if (args.length !== 0) { + assert(state.args === null); + state.args = args; + state.reverseArgs = args.map(function(arg) { + if (typeof arg !== 'object' || arg.constructor !== Object) + return arg; - // Long form - var num = len & 0x7f; - if (num > 4) - return buf.error('length octect is too long'); - - len = 0; - for (var i = 0; i < num; i++) { - len <<= 8; - var j = buf.readUInt8(fail); - if (buf.isError(j)) - return j; - len |= j; + var res = {}; + Object.keys(arg).forEach(function(key) { + if (key == (key | 0)) + key |= 0; + var value = arg[key]; + res[value] = key; + }); + return res; + }); } +}; - return len; -} +// +// Overrided methods +// -},{"3":3,"97":97}],12:[function(require,module,exports){ -var decoders = exports; +overrided.forEach(function(method) { + Node.prototype[method] = function _overrided() { + var state = this._baseState; + throw new Error(method + ' not implemented for encoding: ' + state.enc); + }; +}); -decoders.der = require(11); -decoders.pem = require(13); +// +// Public methods +// -},{"11":11,"13":13}],13:[function(require,module,exports){ -var inherits = require(97); -var Buffer = require(47).Buffer; +tags.forEach(function(tag) { + Node.prototype[tag] = function _tagMethod() { + var state = this._baseState; + var args = Array.prototype.slice.call(arguments); -var DERDecoder = require(11); + assert(state.tag === null); + state.tag = tag; -function PEMDecoder(entity) { - DERDecoder.call(this, entity); - this.enc = 'pem'; -}; -inherits(PEMDecoder, DERDecoder); -module.exports = PEMDecoder; + this._useArgs(args); -PEMDecoder.prototype.decode = function decode(data, options) { - var lines = data.toString().split(/[\r\n]+/g); + return this; + }; +}); - var label = options.label.toUpperCase(); +Node.prototype.use = function use(item) { + assert(item); + var state = this._baseState; - var re = /^-----(BEGIN|END) ([^-]+)-----$/; - var start = -1; - var end = -1; - for (var i = 0; i < lines.length; i++) { - var match = lines[i].match(re); - if (match === null) - continue; + assert(state.use === null); + state.use = item; - if (match[2] !== label) - continue; + return this; +}; - if (start === -1) { - if (match[1] !== 'BEGIN') - break; - start = i; - } else { - if (match[1] !== 'END') - break; - end = i; - break; - } - } - if (start === -1 || end === -1) - throw new Error('PEM section not found for: ' + label); +Node.prototype.optional = function optional() { + var state = this._baseState; - var base64 = lines.slice(start + 1, end).join(''); - // Remove excessive symbols - base64.replace(/[^a-z0-9\+\/=]+/gi, ''); + state.optional = true; - var input = new Buffer(base64, 'base64'); - return DERDecoder.prototype.decode.call(this, input, options); + return this; }; -},{"11":11,"47":47,"97":97}],14:[function(require,module,exports){ -var inherits = require(97); -var Buffer = require(47).Buffer; +Node.prototype.def = function def(val) { + var state = this._baseState; -var asn1 = require(3); -var base = asn1.base; + assert(state['default'] === null); + state['default'] = val; + state.optional = true; -// Import DER constants -var der = asn1.constants.der; + return this; +}; -function DEREncoder(entity) { - this.enc = 'der'; - this.name = entity.name; - this.entity = entity; +Node.prototype.explicit = function explicit(num) { + var state = this._baseState; - // Construct base tree - this.tree = new DERNode(); - this.tree._init(entity.body); -}; -module.exports = DEREncoder; + assert(state.explicit === null && state.implicit === null); + state.explicit = num; -DEREncoder.prototype.encode = function encode(data, reporter) { - return this.tree._encode(data, reporter).join(); + return this; }; -// Tree methods - -function DERNode(parent) { - base.Node.call(this, 'der', parent); -} -inherits(DERNode, base.Node); +Node.prototype.implicit = function implicit(num) { + var state = this._baseState; -DERNode.prototype._encodeComposite = function encodeComposite(tag, - primitive, - cls, - content) { - var encodedTag = encodeTag(tag, primitive, cls, this.reporter); + assert(state.explicit === null && state.implicit === null); + state.implicit = num; - // Short form - if (content.length < 0x80) { - var header = new Buffer(2); - header[0] = encodedTag; - header[1] = content.length; - return this._createEncoderBuffer([ header, content ]); - } + return this; +}; - // Long form - // Count octets required to store length - var lenOctets = 1; - for (var i = content.length; i >= 0x100; i >>= 8) - lenOctets++; +Node.prototype.obj = function obj() { + var state = this._baseState; + var args = Array.prototype.slice.call(arguments); - var header = new Buffer(1 + 1 + lenOctets); - header[0] = encodedTag; - header[1] = 0x80 | lenOctets; + state.obj = true; - for (var i = 1 + lenOctets, j = content.length; j > 0; i--, j >>= 8) - header[i] = j & 0xff; + if (args.length !== 0) + this._useArgs(args); - return this._createEncoderBuffer([ header, content ]); + return this; }; -DERNode.prototype._encodeStr = function encodeStr(str, tag) { - if (tag === 'bitstr') { - return this._createEncoderBuffer([ str.unused | 0, str.data ]); - } else if (tag === 'bmpstr') { - var buf = new Buffer(str.length * 2); - for (var i = 0; i < str.length; i++) { - buf.writeUInt16BE(str.charCodeAt(i), i * 2); - } - return this._createEncoderBuffer(buf); - } else if (tag === 'numstr') { - if (!this._isNumstr(str)) { - return this.reporter.error('Encoding of string type: numstr supports ' + - 'only digits and space'); - } - return this._createEncoderBuffer(str); - } else if (tag === 'printstr') { - if (!this._isPrintstr(str)) { - return this.reporter.error('Encoding of string type: printstr supports ' + - 'only latin upper and lower case letters, ' + - 'digits, space, apostrophe, left and rigth ' + - 'parenthesis, plus sign, comma, hyphen, ' + - 'dot, slash, colon, equal sign, ' + - 'question mark'); - } - return this._createEncoderBuffer(str); - } else if (/str$/.test(tag)) { - return this._createEncoderBuffer(str); - } else if (tag === 'objDesc') { - return this._createEncoderBuffer(str); - } else { - return this.reporter.error('Encoding of string type: ' + tag + - ' unsupported'); - } +Node.prototype.key = function key(newKey) { + var state = this._baseState; + + assert(state.key === null); + state.key = newKey; + + return this; }; -DERNode.prototype._encodeObjid = function encodeObjid(id, values, relative) { - if (typeof id === 'string') { - if (!values) - return this.reporter.error('string objid given, but no values map found'); - if (!values.hasOwnProperty(id)) - return this.reporter.error('objid not found in values map'); - id = values[id].split(/[\s\.]+/g); - for (var i = 0; i < id.length; i++) - id[i] |= 0; - } else if (Array.isArray(id)) { - id = id.slice(); - for (var i = 0; i < id.length; i++) - id[i] |= 0; - } +Node.prototype.any = function any() { + var state = this._baseState; - if (!Array.isArray(id)) { - return this.reporter.error('objid() should be either array or string, ' + - 'got: ' + JSON.stringify(id)); - } + state.any = true; - if (!relative) { - if (id[1] >= 40) - return this.reporter.error('Second objid identifier OOB'); - id.splice(0, 2, id[0] * 40 + id[1]); - } + return this; +}; - // Count number of octets - var size = 0; - for (var i = 0; i < id.length; i++) { - var ident = id[i]; - for (size++; ident >= 0x80; ident >>= 7) - size++; - } +Node.prototype.choice = function choice(obj) { + var state = this._baseState; - var objid = new Buffer(size); - var offset = objid.length - 1; - for (var i = id.length - 1; i >= 0; i--) { - var ident = id[i]; - objid[offset--] = ident & 0x7f; - while ((ident >>= 7) > 0) - objid[offset--] = 0x80 | (ident & 0x7f); - } + assert(state.choice === null); + state.choice = obj; + this._useArgs(Object.keys(obj).map(function(key) { + return obj[key]; + })); - return this._createEncoderBuffer(objid); + return this; }; -function two(num) { - if (num < 10) - return '0' + num; - else - return num; -} - -DERNode.prototype._encodeTime = function encodeTime(time, tag) { - var str; - var date = new Date(time); - - if (tag === 'gentime') { - str = [ - two(date.getFullYear()), - two(date.getUTCMonth() + 1), - two(date.getUTCDate()), - two(date.getUTCHours()), - two(date.getUTCMinutes()), - two(date.getUTCSeconds()), - 'Z' - ].join(''); - } else if (tag === 'utctime') { - str = [ - two(date.getFullYear() % 100), - two(date.getUTCMonth() + 1), - two(date.getUTCDate()), - two(date.getUTCHours()), - two(date.getUTCMinutes()), - two(date.getUTCSeconds()), - 'Z' - ].join(''); - } else { - this.reporter.error('Encoding ' + tag + ' time is not supported yet'); - } +Node.prototype.contains = function contains(item) { + var state = this._baseState; - return this._encodeStr(str, 'octstr'); -}; + assert(state.use === null); + state.contains = item; -DERNode.prototype._encodeNull = function encodeNull() { - return this._createEncoderBuffer(''); + return this; }; -DERNode.prototype._encodeInt = function encodeInt(num, values) { - if (typeof num === 'string') { - if (!values) - return this.reporter.error('String int or enum given, but no values map'); - if (!values.hasOwnProperty(num)) { - return this.reporter.error('Values map doesn\'t contain: ' + - JSON.stringify(num)); - } - num = values[num]; - } +// +// Decoding +// - // Bignum, assume big endian - if (typeof num !== 'number' && !Buffer.isBuffer(num)) { - var numArray = num.toArray(); - if (!num.sign && numArray[0] & 0x80) { - numArray.unshift(0); - } - num = new Buffer(numArray); - } +Node.prototype._decode = function decode(input, options) { + var state = this._baseState; - if (Buffer.isBuffer(num)) { - var size = num.length; - if (num.length === 0) - size++; + // Decode root node + if (state.parent === null) + return input.wrapResult(state.children[0]._decode(input, options)); - var out = new Buffer(size); - num.copy(out); - if (num.length === 0) - out[0] = 0 - return this._createEncoderBuffer(out); - } + var result = state['default']; + var present = true; - if (num < 0x80) - return this._createEncoderBuffer(num); + var prevKey = null; + if (state.key !== null) + prevKey = input.enterKey(state.key); - if (num < 0x100) - return this._createEncoderBuffer([0, num]); + // Check if tag is there + if (state.optional) { + var tag = null; + if (state.explicit !== null) + tag = state.explicit; + else if (state.implicit !== null) + tag = state.implicit; + else if (state.tag !== null) + tag = state.tag; - var size = 1; - for (var i = num; i >= 0x100; i >>= 8) - size++; + if (tag === null && !state.any) { + // Trial and Error + var save = input.save(); + try { + if (state.choice === null) + this._decodeGeneric(state.tag, input, options); + else + this._decodeChoice(input, options); + present = true; + } catch (e) { + present = false; + } + input.restore(save); + } else { + present = this._peekTag(input, tag, state.any); - var out = new Array(size); - for (var i = out.length - 1; i >= 0; i--) { - out[i] = num & 0xff; - num >>= 8; - } - if(out[0] & 0x80) { - out.unshift(0); + if (input.isError(present)) + return present; + } } - return this._createEncoderBuffer(new Buffer(out)); -}; - -DERNode.prototype._encodeBool = function encodeBool(value) { - return this._createEncoderBuffer(value ? 0xff : 0); -}; - -DERNode.prototype._use = function use(entity, obj) { - if (typeof entity === 'function') - entity = entity(obj); - return entity._getEncoder('der').tree; -}; - -DERNode.prototype._skipDefault = function skipDefault(dataBuffer, reporter, parent) { - var state = this._baseState; - var i; - if (state['default'] === null) - return false; - - var data = dataBuffer.join(); - if (state.defaultBuffer === undefined) - state.defaultBuffer = this._encodeValue(state['default'], reporter, parent).join(); - - if (data.length !== state.defaultBuffer.length) - return false; - - for (i=0; i < data.length; i++) - if (data[i] !== state.defaultBuffer[i]) - return false; - - return true; -}; + // Push object on stack + var prevObj; + if (state.obj && present) + prevObj = input.enterObject(); -// Utility methods + if (present) { + // Unwrap explicit values + if (state.explicit !== null) { + var explicit = this._decodeTag(input, state.explicit); + if (input.isError(explicit)) + return explicit; + input = explicit; + } -function encodeTag(tag, primitive, cls, reporter) { - var res; + var start = input.offset; - if (tag === 'seqof') - tag = 'seq'; - else if (tag === 'setof') - tag = 'set'; + // Unwrap implicit and normal values + if (state.use === null && state.choice === null) { + if (state.any) + var save = input.save(); + var body = this._decodeTag( + input, + state.implicit !== null ? state.implicit : state.tag, + state.any + ); + if (input.isError(body)) + return body; - if (der.tagByName.hasOwnProperty(tag)) - res = der.tagByName[tag]; - else if (typeof tag === 'number' && (tag | 0) === tag) - res = tag; - else - return reporter.error('Unknown tag: ' + tag); + if (state.any) + result = input.raw(save); + else + input = body; + } - if (res >= 0x1f) - return reporter.error('Multi-octet tag encoding unsupported'); + if (options && options.track && state.tag !== null) + options.track(input.path(), start, input.length, 'tagged'); - if (!primitive) - res |= 0x20; + if (options && options.track && state.tag !== null) + options.track(input.path(), input.offset, input.length, 'content'); - res |= (der.tagClassByName[cls || 'universal'] << 6); + // Select proper method for tag + if (state.any) + result = result; + else if (state.choice === null) + result = this._decodeGeneric(state.tag, input, options); + else + result = this._decodeChoice(input, options); - return res; -} + if (input.isError(result)) + return result; -},{"3":3,"47":47,"97":97}],15:[function(require,module,exports){ -var encoders = exports; + // Decode children + if (!state.any && state.choice === null && state.children !== null) { + state.children.forEach(function decodeChildren(child) { + // NOTE: We are ignoring errors here, to let parser continue with other + // parts of encoded data + child._decode(input, options); + }); + } -encoders.der = require(14); -encoders.pem = require(16); + // Decode contained/encoded by schema, only in bit or octet strings + if (state.contains && (state.tag === 'octstr' || state.tag === 'bitstr')) { + var data = new DecoderBuffer(result); + result = this._getUse(state.contains, input._reporterState.obj) + ._decode(data, options); + } + } -},{"14":14,"16":16}],16:[function(require,module,exports){ -var inherits = require(97); + // Pop object + if (state.obj && present) + result = input.leaveObject(prevObj); -var DEREncoder = require(14); + // Set key + if (state.key !== null && (result !== null || present === true)) + input.leaveKey(prevKey, state.key, result); + else if (prevKey !== null) + input.exitKey(prevKey); -function PEMEncoder(entity) { - DEREncoder.call(this, entity); - this.enc = 'pem'; + return result; }; -inherits(PEMEncoder, DEREncoder); -module.exports = PEMEncoder; -PEMEncoder.prototype.encode = function encode(data, options) { - var buf = DEREncoder.prototype.encode.call(this, data); +Node.prototype._decodeGeneric = function decodeGeneric(tag, input, options) { + var state = this._baseState; - var p = buf.toString('base64'); - var out = [ '-----BEGIN ' + options.label + '-----' ]; - for (var i = 0; i < p.length; i += 64) - out.push(p.slice(i, i + 64)); - out.push('-----END ' + options.label + '-----'); - return out.join('\n'); -}; + if (tag === 'seq' || tag === 'set') + return null; + if (tag === 'seqof' || tag === 'setof') + return this._decodeList(input, tag, state.args[0], options); + else if (/str$/.test(tag)) + return this._decodeStr(input, tag, options); + else if (tag === 'objid' && state.args) + return this._decodeObjid(input, state.args[0], state.args[1], options); + else if (tag === 'objid') + return this._decodeObjid(input, null, null, options); + else if (tag === 'gentime' || tag === 'utctime') + return this._decodeTime(input, tag, options); + else if (tag === 'null_') + return this._decodeNull(input, options); + else if (tag === 'bool') + return this._decodeBool(input, options); + else if (tag === 'objDesc') + return this._decodeStr(input, tag, options); + else if (tag === 'int' || tag === 'enum') + return this._decodeInt(input, state.args && state.args[0], options); -},{"14":14,"97":97}],17:[function(require,module,exports){ -var lookup = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/'; + if (state.use !== null) { + return this._getUse(state.use, input._reporterState.obj) + ._decode(input, options); + } else { + return input.error('unknown tag: ' + tag); + } +}; -;(function (exports) { - 'use strict'; +Node.prototype._getUse = function _getUse(entity, obj) { - var Arr = (typeof Uint8Array !== 'undefined') - ? Uint8Array - : Array + var state = this._baseState; + // Create altered use decoder if implicit is set + state.useDecoder = this._use(entity, obj); + assert(state.useDecoder._baseState.parent === null); + state.useDecoder = state.useDecoder._baseState.children[0]; + if (state.implicit !== state.useDecoder._baseState.implicit) { + state.useDecoder = state.useDecoder.clone(); + state.useDecoder._baseState.implicit = state.implicit; + } + return state.useDecoder; +}; - var PLUS = '+'.charCodeAt(0) - var SLASH = '/'.charCodeAt(0) - var NUMBER = '0'.charCodeAt(0) - var LOWER = 'a'.charCodeAt(0) - var UPPER = 'A'.charCodeAt(0) - var PLUS_URL_SAFE = '-'.charCodeAt(0) - var SLASH_URL_SAFE = '_'.charCodeAt(0) +Node.prototype._decodeChoice = function decodeChoice(input, options) { + var state = this._baseState; + var result = null; + var match = false; - function decode (elt) { - var code = elt.charCodeAt(0) - if (code === PLUS || - code === PLUS_URL_SAFE) - return 62 // '+' - if (code === SLASH || - code === SLASH_URL_SAFE) - return 63 // '/' - if (code < NUMBER) - return -1 //no match - if (code < NUMBER + 10) - return code - NUMBER + 26 + 26 - if (code < UPPER + 26) - return code - UPPER - if (code < LOWER + 26) - return code - LOWER + 26 - } + Object.keys(state.choice).some(function(key) { + var save = input.save(); + var node = state.choice[key]; + try { + var value = node._decode(input, options); + if (input.isError(value)) + return false; - function b64ToByteArray (b64) { - var i, j, l, tmp, placeHolders, arr + result = { type: key, value: value }; + match = true; + } catch (e) { + input.restore(save); + return false; + } + return true; + }, this); - if (b64.length % 4 > 0) { - throw new Error('Invalid string. Length must be a multiple of 4') - } + if (!match) + return input.error('Choice not matched'); - // the number of equal signs (place holders) - // if there are two placeholders, than the two characters before it - // represent one byte - // if there is only one, then the three characters before it represent 2 bytes - // this is just a cheap hack to not do indexOf twice - var len = b64.length - placeHolders = '=' === b64.charAt(len - 2) ? 2 : '=' === b64.charAt(len - 1) ? 1 : 0 + return result; +}; - // base64 is 4/3 + up to two characters of the original data - arr = new Arr(b64.length * 3 / 4 - placeHolders) +// +// Encoding +// - // if there are placeholders, only get up to the last complete 4 chars - l = placeHolders > 0 ? b64.length - 4 : b64.length +Node.prototype._createEncoderBuffer = function createEncoderBuffer(data) { + return new EncoderBuffer(data, this.reporter); +}; - var L = 0 +Node.prototype._encode = function encode(data, reporter, parent) { + var state = this._baseState; + if (state['default'] !== null && state['default'] === data) + return; - function push (v) { - arr[L++] = v - } + var result = this._encodeValue(data, reporter, parent); + if (result === undefined) + return; - for (i = 0, j = 0; i < l; i += 4, j += 3) { - tmp = (decode(b64.charAt(i)) << 18) | (decode(b64.charAt(i + 1)) << 12) | (decode(b64.charAt(i + 2)) << 6) | decode(b64.charAt(i + 3)) - push((tmp & 0xFF0000) >> 16) - push((tmp & 0xFF00) >> 8) - push(tmp & 0xFF) - } + if (this._skipDefault(result, reporter, parent)) + return; - if (placeHolders === 2) { - tmp = (decode(b64.charAt(i)) << 2) | (decode(b64.charAt(i + 1)) >> 4) - push(tmp & 0xFF) - } else if (placeHolders === 1) { - tmp = (decode(b64.charAt(i)) << 10) | (decode(b64.charAt(i + 1)) << 4) | (decode(b64.charAt(i + 2)) >> 2) - push((tmp >> 8) & 0xFF) - push(tmp & 0xFF) - } + return result; +}; - return arr - } +Node.prototype._encodeValue = function encode(data, reporter, parent) { + var state = this._baseState; - function uint8ToBase64 (uint8) { - var i, - extraBytes = uint8.length % 3, // if we have 1 byte left, pad 2 bytes - output = "", - temp, length + // Decode root node + if (state.parent === null) + return state.children[0]._encode(data, reporter || new Reporter()); - function encode (num) { - return lookup.charAt(num) - } + var result = null; - function tripletToBase64 (num) { - return encode(num >> 18 & 0x3F) + encode(num >> 12 & 0x3F) + encode(num >> 6 & 0x3F) + encode(num & 0x3F) - } + // Set reporter to share it with a child class + this.reporter = reporter; - // go through the array every three bytes, we'll deal with trailing stuff later - for (i = 0, length = uint8.length - extraBytes; i < length; i += 3) { - temp = (uint8[i] << 16) + (uint8[i + 1] << 8) + (uint8[i + 2]) - output += tripletToBase64(temp) - } + // Check if data is there + if (state.optional && data === undefined) { + if (state['default'] !== null) + data = state['default'] + else + return; + } - // pad the end with zeros, but make sure to not forget the extra bytes - switch (extraBytes) { - case 1: - temp = uint8[uint8.length - 1] - output += encode(temp >> 2) - output += encode((temp << 4) & 0x3F) - output += '==' - break - case 2: - temp = (uint8[uint8.length - 2] << 8) + (uint8[uint8.length - 1]) - output += encode(temp >> 10) - output += encode((temp >> 4) & 0x3F) - output += encode((temp << 2) & 0x3F) - output += '=' - break - } + // Encode children first + var content = null; + var primitive = false; + if (state.any) { + // Anything that was given is translated to buffer + result = this._createEncoderBuffer(data); + } else if (state.choice) { + result = this._encodeChoice(data, reporter); + } else if (state.contains) { + content = this._getUse(state.contains, parent)._encode(data, reporter); + primitive = true; + } else if (state.children) { + content = state.children.map(function(child) { + if (child._baseState.tag === 'null_') + return child._encode(null, reporter, data); - return output - } + if (child._baseState.key === null) + return reporter.error('Child should have a key'); + var prevKey = reporter.enterKey(child._baseState.key); - exports.toByteArray = b64ToByteArray - exports.fromByteArray = uint8ToBase64 -}(typeof exports === 'undefined' ? (this.base64js = {}) : exports)) + if (typeof data !== 'object') + return reporter.error('Child expected, but input is not object'); -},{}],18:[function(require,module,exports){ -(function (module, exports) { - 'use strict'; + var res = child._encode(data[child._baseState.key], reporter, data); + reporter.leaveKey(prevKey); - // Utils - function assert (val, msg) { - if (!val) throw new Error(msg || 'Assertion failed'); - } + return res; + }, this).filter(function(child) { + return child; + }); + content = this._createEncoderBuffer(content); + } else { + if (state.tag === 'seqof' || state.tag === 'setof') { + // TODO(indutny): this should be thrown on DSL level + if (!(state.args && state.args.length === 1)) + return reporter.error('Too many args for : ' + state.tag); - // Could use `inherits` module, but don't want to move from single file - // architecture yet. - function inherits (ctor, superCtor) { - ctor.super_ = superCtor; - var TempCtor = function () {}; - TempCtor.prototype = superCtor.prototype; - ctor.prototype = new TempCtor(); - ctor.prototype.constructor = ctor; - } + if (!Array.isArray(data)) + return reporter.error('seqof/setof, but data is not Array'); - // BN + var child = this.clone(); + child._baseState.implicit = null; + content = this._createEncoderBuffer(data.map(function(item) { + var state = this._baseState; - function BN (number, base, endian) { - if (BN.isBN(number)) { - return number; + return this._getUse(state.args[0], data)._encode(item, reporter); + }, child)); + } else if (state.use !== null) { + result = this._getUse(state.use, parent)._encode(data, reporter); + } else { + content = this._encodePrimitive(state.tag, data); + primitive = true; } + } - this.negative = 0; - this.words = null; - this.length = 0; - - // Reduction context - this.red = null; - - if (number !== null) { - if (base === 'le' || base === 'be') { - endian = base; - base = 10; - } + // Encode data itself + var result; + if (!state.any && state.choice === null) { + var tag = state.implicit !== null ? state.implicit : state.tag; + var cls = state.implicit === null ? 'universal' : 'context'; - this._init(number || 0, base || 10, endian || 'be'); + if (tag === null) { + if (state.use === null) + reporter.error('Tag could be omitted only for .use()'); + } else { + if (state.use === null) + result = this._encodeComposite(tag, primitive, cls, content); } } - if (typeof module === 'object') { - module.exports = BN; - } else { - exports.BN = BN; - } - - BN.BN = BN; - BN.wordSize = 26; - var Buffer; - try { - Buffer = require('buf' + 'fer').Buffer; - } catch (e) { - } + // Wrap in explicit + if (state.explicit !== null) + result = this._encodeComposite(state.explicit, false, 'context', result); - BN.isBN = function isBN (num) { - if (num instanceof BN) { - return true; - } + return result; +}; - return num !== null && typeof num === 'object' && - num.constructor.wordSize === BN.wordSize && Array.isArray(num.words); - }; +Node.prototype._encodeChoice = function encodeChoice(data, reporter) { + var state = this._baseState; - BN.max = function max (left, right) { - if (left.cmp(right) > 0) return left; - return right; - }; + var node = state.choice[data.type]; + if (!node) { + assert( + false, + data.type + ' not found in ' + + JSON.stringify(Object.keys(state.choice))); + } + return node._encode(data.value, reporter); +}; - BN.min = function min (left, right) { - if (left.cmp(right) < 0) return left; - return right; - }; +Node.prototype._encodePrimitive = function encodePrimitive(tag, data) { + var state = this._baseState; - BN.prototype._init = function init (number, base, endian) { - if (typeof number === 'number') { - return this._initNumber(number, base, endian); - } + if (/str$/.test(tag)) + return this._encodeStr(data, tag); + else if (tag === 'objid' && state.args) + return this._encodeObjid(data, state.reverseArgs[0], state.args[1]); + else if (tag === 'objid') + return this._encodeObjid(data, null, null); + else if (tag === 'gentime' || tag === 'utctime') + return this._encodeTime(data, tag); + else if (tag === 'null_') + return this._encodeNull(); + else if (tag === 'int' || tag === 'enum') + return this._encodeInt(data, state.args && state.reverseArgs[0]); + else if (tag === 'bool') + return this._encodeBool(data); + else if (tag === 'objDesc') + return this._encodeStr(data, tag); + else + throw new Error('Unsupported tag: ' + tag); +}; - if (typeof number === 'object') { - return this._initArray(number, base, endian); - } +Node.prototype._isNumstr = function isNumstr(str) { + return /^[0-9 ]*$/.test(str); +}; - if (base === 'hex') { - base = 16; - } - assert(base === (base | 0) && base >= 2 && base <= 36); +Node.prototype._isPrintstr = function isPrintstr(str) { + return /^[A-Za-z0-9 '\(\)\+,\-\.\/:=\?]*$/.test(str); +}; - number = number.toString().replace(/\s+/g, ''); - var start = 0; - if (number[0] === '-') { - start++; - } +},{"10":10,"119":119}],12:[function(require,module,exports){ +var inherits = require(109); - if (base === 16) { - this._parseHex(number, start); - } else { - this._parseBase(number, base, start); - } +function Reporter(options) { + this._reporterState = { + obj: null, + path: [], + options: options || {}, + errors: [] + }; +} +exports.Reporter = Reporter; - if (number[0] === '-') { - this.negative = 1; - } +Reporter.prototype.isError = function isError(obj) { + return obj instanceof ReporterError; +}; - this.strip(); +Reporter.prototype.save = function save() { + var state = this._reporterState; - if (endian !== 'le') return; + return { obj: state.obj, pathLen: state.path.length }; +}; - this._initArray(this.toArray(), base, endian); - }; +Reporter.prototype.restore = function restore(data) { + var state = this._reporterState; - BN.prototype._initNumber = function _initNumber (number, base, endian) { - if (number < 0) { - this.negative = 1; - number = -number; - } - if (number < 0x4000000) { - this.words = [ number & 0x3ffffff ]; - this.length = 1; - } else if (number < 0x10000000000000) { - this.words = [ - number & 0x3ffffff, - (number / 0x4000000) & 0x3ffffff - ]; - this.length = 2; - } else { - assert(number < 0x20000000000000); // 2 ^ 53 (unsafe) - this.words = [ - number & 0x3ffffff, - (number / 0x4000000) & 0x3ffffff, - 1 - ]; - this.length = 3; - } + state.obj = data.obj; + state.path = state.path.slice(0, data.pathLen); +}; - if (endian !== 'le') return; +Reporter.prototype.enterKey = function enterKey(key) { + return this._reporterState.path.push(key); +}; - // Reverse the bytes - this._initArray(this.toArray(), base, endian); - }; +Reporter.prototype.exitKey = function exitKey(index) { + var state = this._reporterState; - BN.prototype._initArray = function _initArray (number, base, endian) { - // Perhaps a Uint8Array - assert(typeof number.length === 'number'); - if (number.length <= 0) { - this.words = [ 0 ]; - this.length = 1; - return this; - } + state.path = state.path.slice(0, index - 1); +}; - this.length = Math.ceil(number.length / 3); - this.words = new Array(this.length); - for (var i = 0; i < this.length; i++) { - this.words[i] = 0; - } +Reporter.prototype.leaveKey = function leaveKey(index, key, value) { + var state = this._reporterState; - var j, w; - var off = 0; - if (endian === 'be') { - for (i = number.length - 1, j = 0; i >= 0; i -= 3) { - w = number[i] | (number[i - 1] << 8) | (number[i - 2] << 16); - this.words[j] |= (w << off) & 0x3ffffff; - this.words[j + 1] = (w >>> (26 - off)) & 0x3ffffff; - off += 24; - if (off >= 26) { - off -= 26; - j++; - } - } - } else if (endian === 'le') { - for (i = 0, j = 0; i < number.length; i += 3) { - w = number[i] | (number[i + 1] << 8) | (number[i + 2] << 16); - this.words[j] |= (w << off) & 0x3ffffff; - this.words[j + 1] = (w >>> (26 - off)) & 0x3ffffff; - off += 24; - if (off >= 26) { - off -= 26; - j++; - } - } - } - return this.strip(); - }; + this.exitKey(index); + if (state.obj !== null) + state.obj[key] = value; +}; - function parseHex (str, start, end) { - var r = 0; - var len = Math.min(str.length, end); - for (var i = start; i < len; i++) { - var c = str.charCodeAt(i) - 48; +Reporter.prototype.path = function path() { + return this._reporterState.path.join('/'); +}; - r <<= 4; +Reporter.prototype.enterObject = function enterObject() { + var state = this._reporterState; - // 'a' - 'f' - if (c >= 49 && c <= 54) { - r |= c - 49 + 0xa; + var prev = state.obj; + state.obj = {}; + return prev; +}; - // 'A' - 'F' - } else if (c >= 17 && c <= 22) { - r |= c - 17 + 0xa; +Reporter.prototype.leaveObject = function leaveObject(prev) { + var state = this._reporterState; - // '0' - '9' - } else { - r |= c & 0xf; - } - } - return r; + var now = state.obj; + state.obj = prev; + return now; +}; + +Reporter.prototype.error = function error(msg) { + var err; + var state = this._reporterState; + + var inherited = msg instanceof ReporterError; + if (inherited) { + err = msg; + } else { + err = new ReporterError(state.path.map(function(elem) { + return '[' + JSON.stringify(elem) + ']'; + }).join(''), msg.message || msg, msg.stack); } - BN.prototype._parseHex = function _parseHex (number, start) { - // Create possibly bigger array to ensure that it fits the number - this.length = Math.ceil((number.length - start) / 6); - this.words = new Array(this.length); - for (var i = 0; i < this.length; i++) { - this.words[i] = 0; - } + if (!state.options.partial) + throw err; - var j, w; - // Scan 24-bit chunks and add them to the number - var off = 0; - for (i = number.length - 6, j = 0; i >= start; i -= 6) { - w = parseHex(number, i, i + 6); - this.words[j] |= (w << off) & 0x3ffffff; - // NOTE: `0x3fffff` is intentional here, 26bits max shift + 24bit hex limb - this.words[j + 1] |= w >>> (26 - off) & 0x3fffff; - off += 24; - if (off >= 26) { - off -= 26; - j++; - } - } - if (i + 6 !== start) { - w = parseHex(number, start, i + 6); - this.words[j] |= (w << off) & 0x3ffffff; - this.words[j + 1] |= w >>> (26 - off) & 0x3fffff; - } - this.strip(); - }; + if (!inherited) + state.errors.push(err); - function parseBase (str, start, end, mul) { - var r = 0; - var len = Math.min(str.length, end); - for (var i = start; i < len; i++) { - var c = str.charCodeAt(i) - 48; + return err; +}; - r *= mul; +Reporter.prototype.wrapResult = function wrapResult(result) { + var state = this._reporterState; + if (!state.options.partial) + return result; - // 'a' - if (c >= 49) { - r += c - 49 + 0xa; + return { + result: this.isError(result) ? null : result, + errors: state.errors + }; +}; - // 'A' - } else if (c >= 17) { - r += c - 17 + 0xa; +function ReporterError(path, msg) { + this.path = path; + this.rethrow(msg); +}; +inherits(ReporterError, Error); - // '0' - '9' - } else { - r += c; - } +ReporterError.prototype.rethrow = function rethrow(msg) { + this.message = msg + ' at: ' + (this.path || '(shallow)'); + if (Error.captureStackTrace) + Error.captureStackTrace(this, ReporterError); + + if (!this.stack) { + try { + // IE only adds stack when thrown + throw new Error(this.message); + } catch (e) { + this.stack = e.stack; } - return r; } + return this; +}; - BN.prototype._parseBase = function _parseBase (number, base, start) { - // Initialize as zero - this.words = [ 0 ]; - this.length = 1; +},{"109":109}],13:[function(require,module,exports){ +var constants = require(14); - // Find length of limb in base - for (var limbLen = 0, limbPow = 1; limbPow <= 0x3ffffff; limbPow *= base) { - limbLen++; - } - limbLen--; - limbPow = (limbPow / base) | 0; +exports.tagClass = { + 0: 'universal', + 1: 'application', + 2: 'context', + 3: 'private' +}; +exports.tagClassByName = constants._reverse(exports.tagClass); - var total = number.length - start; - var mod = total % limbLen; - var end = Math.min(total, total - mod) + start; +exports.tag = { + 0x00: 'end', + 0x01: 'bool', + 0x02: 'int', + 0x03: 'bitstr', + 0x04: 'octstr', + 0x05: 'null_', + 0x06: 'objid', + 0x07: 'objDesc', + 0x08: 'external', + 0x09: 'real', + 0x0a: 'enum', + 0x0b: 'embed', + 0x0c: 'utf8str', + 0x0d: 'relativeOid', + 0x10: 'seq', + 0x11: 'set', + 0x12: 'numstr', + 0x13: 'printstr', + 0x14: 't61str', + 0x15: 'videostr', + 0x16: 'ia5str', + 0x17: 'utctime', + 0x18: 'gentime', + 0x19: 'graphstr', + 0x1a: 'iso646str', + 0x1b: 'genstr', + 0x1c: 'unistr', + 0x1d: 'charstr', + 0x1e: 'bmpstr' +}; +exports.tagByName = constants._reverse(exports.tag); - var word = 0; - for (var i = start; i < end; i += limbLen) { - word = parseBase(number, i, i + limbLen, base); +},{"14":14}],14:[function(require,module,exports){ +var constants = exports; - this.imuln(limbPow); - if (this.words[0] + word < 0x4000000) { - this.words[0] += word; - } else { - this._iaddn(word); - } - } +// Helper +constants._reverse = function reverse(map) { + var res = {}; - if (mod !== 0) { - var pow = 1; - word = parseBase(number, i, number.length, base); + Object.keys(map).forEach(function(key) { + // Convert key to integer if it is stringified + if ((key | 0) == key) + key = key | 0; - for (i = 0; i < mod; i++) { - pow *= base; - } + var value = map[key]; + res[value] = key; + }); - this.imuln(pow); - if (this.words[0] + word < 0x4000000) { - this.words[0] += word; - } else { - this._iaddn(word); - } - } - }; + return res; +}; - BN.prototype.copy = function copy (dest) { - dest.words = new Array(this.length); - for (var i = 0; i < this.length; i++) { - dest.words[i] = this.words[i]; - } - dest.length = this.length; - dest.negative = this.negative; - dest.red = this.red; - }; +constants.der = require(13); - BN.prototype.clone = function clone () { - var r = new BN(null); - this.copy(r); - return r; - }; +},{"13":13}],15:[function(require,module,exports){ +var inherits = require(109); - BN.prototype._expand = function _expand (size) { - while (this.length < size) { - this.words[this.length++] = 0; - } - return this; - }; +var asn1 = require(7); +var base = asn1.base; +var bignum = asn1.bignum; - // Remove leading `0` from `this` - BN.prototype.strip = function strip () { - while (this.length > 1 && this.words[this.length - 1] === 0) { - this.length--; - } - return this._normSign(); - }; +// Import DER constants +var der = asn1.constants.der; - BN.prototype._normSign = function _normSign () { - // -0 = 0 - if (this.length === 1 && this.words[0] === 0) { - this.negative = 0; - } - return this; - }; +function DERDecoder(entity) { + this.enc = 'der'; + this.name = entity.name; + this.entity = entity; - BN.prototype.inspect = function inspect () { - return (this.red ? ''; - }; + // Construct base tree + this.tree = new DERNode(); + this.tree._init(entity.body); +}; +module.exports = DERDecoder; - /* +DERDecoder.prototype.decode = function decode(data, options) { + if (!(data instanceof base.DecoderBuffer)) + data = new base.DecoderBuffer(data, options); - var zeros = []; - var groupSizes = []; - var groupBases = []; + return this.tree._decode(data, options); +}; - var s = ''; - var i = -1; - while (++i < BN.wordSize) { - zeros[i] = s; - s += '0'; - } - groupSizes[0] = 0; - groupSizes[1] = 0; - groupBases[0] = 0; - groupBases[1] = 0; - var base = 2 - 1; - while (++base < 36 + 1) { - var groupSize = 0; - var groupBase = 1; - while (groupBase < (1 << BN.wordSize) / base) { - groupBase *= base; - groupSize += 1; - } - groupSizes[base] = groupSize; - groupBases[base] = groupBase; - } - - */ - - var zeros = [ - '', - '0', - '00', - '000', - '0000', - '00000', - '000000', - '0000000', - '00000000', - '000000000', - '0000000000', - '00000000000', - '000000000000', - '0000000000000', - '00000000000000', - '000000000000000', - '0000000000000000', - '00000000000000000', - '000000000000000000', - '0000000000000000000', - '00000000000000000000', - '000000000000000000000', - '0000000000000000000000', - '00000000000000000000000', - '000000000000000000000000', - '0000000000000000000000000' - ]; +// Tree methods - var groupSizes = [ - 0, 0, - 25, 16, 12, 11, 10, 9, 8, - 8, 7, 7, 7, 7, 6, 6, - 6, 6, 6, 6, 6, 5, 5, - 5, 5, 5, 5, 5, 5, 5, - 5, 5, 5, 5, 5, 5, 5 - ]; +function DERNode(parent) { + base.Node.call(this, 'der', parent); +} +inherits(DERNode, base.Node); - var groupBases = [ - 0, 0, - 33554432, 43046721, 16777216, 48828125, 60466176, 40353607, 16777216, - 43046721, 10000000, 19487171, 35831808, 62748517, 7529536, 11390625, - 16777216, 24137569, 34012224, 47045881, 64000000, 4084101, 5153632, - 6436343, 7962624, 9765625, 11881376, 14348907, 17210368, 20511149, - 24300000, 28629151, 33554432, 39135393, 45435424, 52521875, 60466176 - ]; +DERNode.prototype._peekTag = function peekTag(buffer, tag, any) { + if (buffer.isEmpty()) + return false; - BN.prototype.toString = function toString (base, padding) { - base = base || 10; - padding = padding | 0 || 1; + var state = buffer.save(); + var decodedTag = derDecodeTag(buffer, 'Failed to peek tag: "' + tag + '"'); + if (buffer.isError(decodedTag)) + return decodedTag; - var out; - if (base === 16 || base === 'hex') { - out = ''; - var off = 0; - var carry = 0; - for (var i = 0; i < this.length; i++) { - var w = this.words[i]; - var word = (((w << off) | carry) & 0xffffff).toString(16); - carry = (w >>> (24 - off)) & 0xffffff; - if (carry !== 0 || i !== this.length - 1) { - out = zeros[6 - word.length] + word + out; - } else { - out = word + out; - } - off += 2; - if (off >= 26) { - off -= 26; - i--; - } - } - if (carry !== 0) { - out = carry.toString(16) + out; - } - while (out.length % padding !== 0) { - out = '0' + out; - } - if (this.negative !== 0) { - out = '-' + out; - } - return out; - } + buffer.restore(state); - if (base === (base | 0) && base >= 2 && base <= 36) { - // var groupSize = Math.floor(BN.wordSize * Math.LN2 / Math.log(base)); - var groupSize = groupSizes[base]; - // var groupBase = Math.pow(base, groupSize); - var groupBase = groupBases[base]; - out = ''; - var c = this.clone(); - c.negative = 0; - while (!c.isZero()) { - var r = c.modn(groupBase).toString(base); - c = c.idivn(groupBase); + return decodedTag.tag === tag || decodedTag.tagStr === tag || + (decodedTag.tagStr + 'of') === tag || any; +}; - if (!c.isZero()) { - out = zeros[groupSize - r.length] + r + out; - } else { - out = r + out; - } - } - if (this.isZero()) { - out = '0' + out; - } - while (out.length % padding !== 0) { - out = '0' + out; - } - if (this.negative !== 0) { - out = '-' + out; - } - return out; - } +DERNode.prototype._decodeTag = function decodeTag(buffer, tag, any) { + var decodedTag = derDecodeTag(buffer, + 'Failed to decode tag of "' + tag + '"'); + if (buffer.isError(decodedTag)) + return decodedTag; - assert(false, 'Base should be between 2 and 36'); - }; + var len = derDecodeLen(buffer, + decodedTag.primitive, + 'Failed to get length of "' + tag + '"'); - BN.prototype.toNumber = function toNumber () { - var ret = this.words[0]; - if (this.length === 2) { - ret += this.words[1] * 0x4000000; - } else if (this.length === 3 && this.words[2] === 0x01) { - // NOTE: at this stage it is known that the top bit is set - ret += 0x10000000000000 + (this.words[1] * 0x4000000); - } else if (this.length > 2) { - assert(false, 'Number can only safely store up to 53 bits'); - } - return (this.negative !== 0) ? -ret : ret; - }; + // Failure + if (buffer.isError(len)) + return len; - BN.prototype.toJSON = function toJSON () { - return this.toString(16); - }; + if (!any && + decodedTag.tag !== tag && + decodedTag.tagStr !== tag && + decodedTag.tagStr + 'of' !== tag) { + return buffer.error('Failed to match tag: "' + tag + '"'); + } - BN.prototype.toBuffer = function toBuffer (endian, length) { - assert(typeof Buffer !== 'undefined'); - return this.toArrayLike(Buffer, endian, length); - }; + if (decodedTag.primitive || len !== null) + return buffer.skip(len, 'Failed to match body of: "' + tag + '"'); - BN.prototype.toArray = function toArray (endian, length) { - return this.toArrayLike(Array, endian, length); - }; + // Indefinite length... find END tag + var state = buffer.save(); + var res = this._skipUntilEnd( + buffer, + 'Failed to skip indefinite length body: "' + this.tag + '"'); + if (buffer.isError(res)) + return res; - BN.prototype.toArrayLike = function toArrayLike (ArrayType, endian, length) { - var byteLength = this.byteLength(); - var reqLength = length || Math.max(1, byteLength); - assert(byteLength <= reqLength, 'byte array longer than desired length'); - assert(reqLength > 0, 'Requested array length <= 0'); + len = buffer.offset - state.offset; + buffer.restore(state); + return buffer.skip(len, 'Failed to match body of: "' + tag + '"'); +}; - this.strip(); - var littleEndian = endian === 'le'; - var res = new ArrayType(reqLength); +DERNode.prototype._skipUntilEnd = function skipUntilEnd(buffer, fail) { + while (true) { + var tag = derDecodeTag(buffer, fail); + if (buffer.isError(tag)) + return tag; + var len = derDecodeLen(buffer, tag.primitive, fail); + if (buffer.isError(len)) + return len; - var b, i; - var q = this.clone(); - if (!littleEndian) { - // Assume big-endian - for (i = 0; i < reqLength - byteLength; i++) { - res[i] = 0; - } + var res; + if (tag.primitive || len !== null) + res = buffer.skip(len) + else + res = this._skipUntilEnd(buffer, fail); - for (i = 0; !q.isZero(); i++) { - b = q.andln(0xff); - q.iushrn(8); + // Failure + if (buffer.isError(res)) + return res; - res[reqLength - i - 1] = b; - } - } else { - for (i = 0; !q.isZero(); i++) { - b = q.andln(0xff); - q.iushrn(8); + if (tag.tagStr === 'end') + break; + } +}; - res[i] = b; - } +DERNode.prototype._decodeList = function decodeList(buffer, tag, decoder, + options) { + var result = []; + while (!buffer.isEmpty()) { + var possibleEnd = this._peekTag(buffer, 'end'); + if (buffer.isError(possibleEnd)) + return possibleEnd; - for (; i < reqLength; i++) { - res[i] = 0; - } - } + var res = decoder.decode(buffer, 'der', options); + if (buffer.isError(res) && possibleEnd) + break; + result.push(res); + } + return result; +}; - return res; - }; - - if (Math.clz32) { - BN.prototype._countBits = function _countBits (w) { - return 32 - Math.clz32(w); - }; - } else { - BN.prototype._countBits = function _countBits (w) { - var t = w; - var r = 0; - if (t >= 0x1000) { - r += 13; - t >>>= 13; - } - if (t >= 0x40) { - r += 7; - t >>>= 7; - } - if (t >= 0x8) { - r += 4; - t >>>= 4; - } - if (t >= 0x02) { - r += 2; - t >>>= 2; - } - return r + t; - }; - } - - BN.prototype._zeroBits = function _zeroBits (w) { - // Short-cut - if (w === 0) return 26; +DERNode.prototype._decodeStr = function decodeStr(buffer, tag) { + if (tag === 'bitstr') { + var unused = buffer.readUInt8(); + if (buffer.isError(unused)) + return unused; + return { unused: unused, data: buffer.raw() }; + } else if (tag === 'bmpstr') { + var raw = buffer.raw(); + if (raw.length % 2 === 1) + return buffer.error('Decoding of string type: bmpstr length mismatch'); - var t = w; - var r = 0; - if ((t & 0x1fff) === 0) { - r += 13; - t >>>= 13; - } - if ((t & 0x7f) === 0) { - r += 7; - t >>>= 7; + var str = ''; + for (var i = 0; i < raw.length / 2; i++) { + str += String.fromCharCode(raw.readUInt16BE(i * 2)); } - if ((t & 0xf) === 0) { - r += 4; - t >>>= 4; + return str; + } else if (tag === 'numstr') { + var numstr = buffer.raw().toString('ascii'); + if (!this._isNumstr(numstr)) { + return buffer.error('Decoding of string type: ' + + 'numstr unsupported characters'); } - if ((t & 0x3) === 0) { - r += 2; - t >>>= 2; + return numstr; + } else if (tag === 'octstr') { + return buffer.raw(); + } else if (tag === 'objDesc') { + return buffer.raw(); + } else if (tag === 'printstr') { + var printstr = buffer.raw().toString('ascii'); + if (!this._isPrintstr(printstr)) { + return buffer.error('Decoding of string type: ' + + 'printstr unsupported characters'); } - if ((t & 0x1) === 0) { - r++; + return printstr; + } else if (/str$/.test(tag)) { + return buffer.raw().toString(); + } else { + return buffer.error('Decoding of string type: ' + tag + ' unsupported'); + } +}; + +DERNode.prototype._decodeObjid = function decodeObjid(buffer, values, relative) { + var result; + var identifiers = []; + var ident = 0; + while (!buffer.isEmpty()) { + var subident = buffer.readUInt8(); + ident <<= 7; + ident |= subident & 0x7f; + if ((subident & 0x80) === 0) { + identifiers.push(ident); + ident = 0; } - return r; - }; + } + if (subident & 0x80) + identifiers.push(ident); - // Return number of used bits in a BN - BN.prototype.bitLength = function bitLength () { - var w = this.words[this.length - 1]; - var hi = this._countBits(w); - return (this.length - 1) * 26 + hi; - }; + var first = (identifiers[0] / 40) | 0; + var second = identifiers[0] % 40; - function toBitArray (num) { - var w = new Array(num.bitLength()); + if (relative) + result = identifiers; + else + result = [first, second].concat(identifiers.slice(1)); - for (var bit = 0; bit < w.length; bit++) { - var off = (bit / 26) | 0; - var wbit = bit % 26; + if (values) { + var tmp = values[result.join(' ')]; + if (tmp === undefined) + tmp = values[result.join('.')]; + if (tmp !== undefined) + result = tmp; + } - w[bit] = (num.words[off] & (1 << wbit)) >>> wbit; - } + return result; +}; - return w; +DERNode.prototype._decodeTime = function decodeTime(buffer, tag) { + var str = buffer.raw().toString(); + if (tag === 'gentime') { + var year = str.slice(0, 4) | 0; + var mon = str.slice(4, 6) | 0; + var day = str.slice(6, 8) | 0; + var hour = str.slice(8, 10) | 0; + var min = str.slice(10, 12) | 0; + var sec = str.slice(12, 14) | 0; + } else if (tag === 'utctime') { + var year = str.slice(0, 2) | 0; + var mon = str.slice(2, 4) | 0; + var day = str.slice(4, 6) | 0; + var hour = str.slice(6, 8) | 0; + var min = str.slice(8, 10) | 0; + var sec = str.slice(10, 12) | 0; + if (year < 70) + year = 2000 + year; + else + year = 1900 + year; + } else { + return buffer.error('Decoding ' + tag + ' time is not supported yet'); } - // Number of trailing zero bits - BN.prototype.zeroBits = function zeroBits () { - if (this.isZero()) return 0; + return Date.UTC(year, mon - 1, day, hour, min, sec, 0); +}; - var r = 0; - for (var i = 0; i < this.length; i++) { - var b = this._zeroBits(this.words[i]); - r += b; - if (b !== 26) break; - } - return r; - }; +DERNode.prototype._decodeNull = function decodeNull(buffer) { + return null; +}; - BN.prototype.byteLength = function byteLength () { - return Math.ceil(this.bitLength() / 8); - }; +DERNode.prototype._decodeBool = function decodeBool(buffer) { + var res = buffer.readUInt8(); + if (buffer.isError(res)) + return res; + else + return res !== 0; +}; - BN.prototype.toTwos = function toTwos (width) { - if (this.negative !== 0) { - return this.abs().inotn(width).iaddn(1); - } - return this.clone(); - }; +DERNode.prototype._decodeInt = function decodeInt(buffer, values) { + // Bigint, return as it is (assume big endian) + var raw = buffer.raw(); + var res = new bignum(raw); - BN.prototype.fromTwos = function fromTwos (width) { - if (this.testn(width - 1)) { - return this.notn(width).iaddn(1).ineg(); - } - return this.clone(); - }; + if (values) + res = values[res.toString(10)] || res; - BN.prototype.isNeg = function isNeg () { - return this.negative !== 0; - }; + return res; +}; - // Return negative clone of `this` - BN.prototype.neg = function neg () { - return this.clone().ineg(); - }; +DERNode.prototype._use = function use(entity, obj) { + if (typeof entity === 'function') + entity = entity(obj); + return entity._getDecoder('der').tree; +}; - BN.prototype.ineg = function ineg () { - if (!this.isZero()) { - this.negative ^= 1; - } +// Utility methods - return this; - }; +function derDecodeTag(buf, fail) { + var tag = buf.readUInt8(fail); + if (buf.isError(tag)) + return tag; - // Or `num` with `this` in-place - BN.prototype.iuor = function iuor (num) { - while (this.length < num.length) { - this.words[this.length++] = 0; - } + var cls = der.tagClass[tag >> 6]; + var primitive = (tag & 0x20) === 0; - for (var i = 0; i < num.length; i++) { - this.words[i] = this.words[i] | num.words[i]; + // Multi-octet tag - load + if ((tag & 0x1f) === 0x1f) { + var oct = tag; + tag = 0; + while ((oct & 0x80) === 0x80) { + oct = buf.readUInt8(fail); + if (buf.isError(oct)) + return oct; + + tag <<= 7; + tag |= oct & 0x7f; } + } else { + tag &= 0x1f; + } + var tagStr = der.tag[tag]; - return this.strip(); + return { + cls: cls, + primitive: primitive, + tag: tag, + tagStr: tagStr }; +} - BN.prototype.ior = function ior (num) { - assert((this.negative | num.negative) === 0); - return this.iuor(num); - }; - - // Or `num` with `this` - BN.prototype.or = function or (num) { - if (this.length > num.length) return this.clone().ior(num); - return num.clone().ior(this); - }; +function derDecodeLen(buf, primitive, fail) { + var len = buf.readUInt8(fail); + if (buf.isError(len)) + return len; - BN.prototype.uor = function uor (num) { - if (this.length > num.length) return this.clone().iuor(num); - return num.clone().iuor(this); - }; + // Indefinite form + if (!primitive && len === 0x80) + return null; - // And `num` with `this` in-place - BN.prototype.iuand = function iuand (num) { - // b = min-length(num, this) - var b; - if (this.length > num.length) { - b = num; - } else { - b = this; - } + // Definite form + if ((len & 0x80) === 0) { + // Short form + return len; + } - for (var i = 0; i < b.length; i++) { - this.words[i] = this.words[i] & num.words[i]; - } + // Long form + var num = len & 0x7f; + if (num > 4) + return buf.error('length octect is too long'); - this.length = b.length; + len = 0; + for (var i = 0; i < num; i++) { + len <<= 8; + var j = buf.readUInt8(fail); + if (buf.isError(j)) + return j; + len |= j; + } - return this.strip(); - }; + return len; +} - BN.prototype.iand = function iand (num) { - assert((this.negative | num.negative) === 0); - return this.iuand(num); - }; +},{"109":109,"7":7}],16:[function(require,module,exports){ +var decoders = exports; - // And `num` with `this` - BN.prototype.and = function and (num) { - if (this.length > num.length) return this.clone().iand(num); - return num.clone().iand(this); - }; +decoders.der = require(15); +decoders.pem = require(17); - BN.prototype.uand = function uand (num) { - if (this.length > num.length) return this.clone().iuand(num); - return num.clone().iuand(this); - }; +},{"15":15,"17":17}],17:[function(require,module,exports){ +var inherits = require(109); +var Buffer = require(54).Buffer; - // Xor `num` with `this` in-place - BN.prototype.iuxor = function iuxor (num) { - // a.length > b.length - var a; - var b; - if (this.length > num.length) { - a = this; - b = num; - } else { - a = num; - b = this; - } +var DERDecoder = require(15); - for (var i = 0; i < b.length; i++) { - this.words[i] = a.words[i] ^ b.words[i]; - } +function PEMDecoder(entity) { + DERDecoder.call(this, entity); + this.enc = 'pem'; +}; +inherits(PEMDecoder, DERDecoder); +module.exports = PEMDecoder; - if (this !== a) { - for (; i < a.length; i++) { - this.words[i] = a.words[i]; - } - } +PEMDecoder.prototype.decode = function decode(data, options) { + var lines = data.toString().split(/[\r\n]+/g); - this.length = a.length; + var label = options.label.toUpperCase(); - return this.strip(); - }; + var re = /^-----(BEGIN|END) ([^-]+)-----$/; + var start = -1; + var end = -1; + for (var i = 0; i < lines.length; i++) { + var match = lines[i].match(re); + if (match === null) + continue; - BN.prototype.ixor = function ixor (num) { - assert((this.negative | num.negative) === 0); - return this.iuxor(num); - }; + if (match[2] !== label) + continue; - // Xor `num` with `this` - BN.prototype.xor = function xor (num) { - if (this.length > num.length) return this.clone().ixor(num); - return num.clone().ixor(this); - }; + if (start === -1) { + if (match[1] !== 'BEGIN') + break; + start = i; + } else { + if (match[1] !== 'END') + break; + end = i; + break; + } + } + if (start === -1 || end === -1) + throw new Error('PEM section not found for: ' + label); - BN.prototype.uxor = function uxor (num) { - if (this.length > num.length) return this.clone().iuxor(num); - return num.clone().iuxor(this); - }; + var base64 = lines.slice(start + 1, end).join(''); + // Remove excessive symbols + base64.replace(/[^a-z0-9\+\/=]+/gi, ''); - // Not ``this`` with ``width`` bitwidth - BN.prototype.inotn = function inotn (width) { - assert(typeof width === 'number' && width >= 0); + var input = new Buffer(base64, 'base64'); + return DERDecoder.prototype.decode.call(this, input, options); +}; - var bytesNeeded = Math.ceil(width / 26) | 0; - var bitsLeft = width % 26; +},{"109":109,"15":15,"54":54}],18:[function(require,module,exports){ +var inherits = require(109); +var Buffer = require(54).Buffer; - // Extend the buffer with leading zeroes - this._expand(bytesNeeded); +var asn1 = require(7); +var base = asn1.base; - if (bitsLeft > 0) { - bytesNeeded--; - } +// Import DER constants +var der = asn1.constants.der; - // Handle complete words - for (var i = 0; i < bytesNeeded; i++) { - this.words[i] = ~this.words[i] & 0x3ffffff; - } +function DEREncoder(entity) { + this.enc = 'der'; + this.name = entity.name; + this.entity = entity; - // Handle the residue - if (bitsLeft > 0) { - this.words[i] = ~this.words[i] & (0x3ffffff >> (26 - bitsLeft)); - } + // Construct base tree + this.tree = new DERNode(); + this.tree._init(entity.body); +}; +module.exports = DEREncoder; - // And remove leading zeroes - return this.strip(); - }; +DEREncoder.prototype.encode = function encode(data, reporter) { + return this.tree._encode(data, reporter).join(); +}; - BN.prototype.notn = function notn (width) { - return this.clone().inotn(width); - }; +// Tree methods - // Set `bit` of `this` - BN.prototype.setn = function setn (bit, val) { - assert(typeof bit === 'number' && bit >= 0); +function DERNode(parent) { + base.Node.call(this, 'der', parent); +} +inherits(DERNode, base.Node); - var off = (bit / 26) | 0; - var wbit = bit % 26; +DERNode.prototype._encodeComposite = function encodeComposite(tag, + primitive, + cls, + content) { + var encodedTag = encodeTag(tag, primitive, cls, this.reporter); - this._expand(off + 1); + // Short form + if (content.length < 0x80) { + var header = new Buffer(2); + header[0] = encodedTag; + header[1] = content.length; + return this._createEncoderBuffer([ header, content ]); + } - if (val) { - this.words[off] = this.words[off] | (1 << wbit); - } else { - this.words[off] = this.words[off] & ~(1 << wbit); - } + // Long form + // Count octets required to store length + var lenOctets = 1; + for (var i = content.length; i >= 0x100; i >>= 8) + lenOctets++; - return this.strip(); - }; + var header = new Buffer(1 + 1 + lenOctets); + header[0] = encodedTag; + header[1] = 0x80 | lenOctets; - // Add `num` to `this` in-place - BN.prototype.iadd = function iadd (num) { - var r; + for (var i = 1 + lenOctets, j = content.length; j > 0; i--, j >>= 8) + header[i] = j & 0xff; - // negative + positive - if (this.negative !== 0 && num.negative === 0) { - this.negative = 0; - r = this.isub(num); - this.negative ^= 1; - return this._normSign(); + return this._createEncoderBuffer([ header, content ]); +}; - // positive + negative - } else if (this.negative === 0 && num.negative !== 0) { - num.negative = 0; - r = this.isub(num); - num.negative = 1; - return r._normSign(); +DERNode.prototype._encodeStr = function encodeStr(str, tag) { + if (tag === 'bitstr') { + return this._createEncoderBuffer([ str.unused | 0, str.data ]); + } else if (tag === 'bmpstr') { + var buf = new Buffer(str.length * 2); + for (var i = 0; i < str.length; i++) { + buf.writeUInt16BE(str.charCodeAt(i), i * 2); } - - // a.length > b.length - var a, b; - if (this.length > num.length) { - a = this; - b = num; - } else { - a = num; - b = this; + return this._createEncoderBuffer(buf); + } else if (tag === 'numstr') { + if (!this._isNumstr(str)) { + return this.reporter.error('Encoding of string type: numstr supports ' + + 'only digits and space'); } - - var carry = 0; - for (var i = 0; i < b.length; i++) { - r = (a.words[i] | 0) + (b.words[i] | 0) + carry; - this.words[i] = r & 0x3ffffff; - carry = r >>> 26; - } - for (; carry !== 0 && i < a.length; i++) { - r = (a.words[i] | 0) + carry; - this.words[i] = r & 0x3ffffff; - carry = r >>> 26; + return this._createEncoderBuffer(str); + } else if (tag === 'printstr') { + if (!this._isPrintstr(str)) { + return this.reporter.error('Encoding of string type: printstr supports ' + + 'only latin upper and lower case letters, ' + + 'digits, space, apostrophe, left and rigth ' + + 'parenthesis, plus sign, comma, hyphen, ' + + 'dot, slash, colon, equal sign, ' + + 'question mark'); } + return this._createEncoderBuffer(str); + } else if (/str$/.test(tag)) { + return this._createEncoderBuffer(str); + } else if (tag === 'objDesc') { + return this._createEncoderBuffer(str); + } else { + return this.reporter.error('Encoding of string type: ' + tag + + ' unsupported'); + } +}; - this.length = a.length; - if (carry !== 0) { - this.words[this.length] = carry; - this.length++; - // Copy the rest of the words - } else if (a !== this) { - for (; i < a.length; i++) { - this.words[i] = a.words[i]; - } - } +DERNode.prototype._encodeObjid = function encodeObjid(id, values, relative) { + if (typeof id === 'string') { + if (!values) + return this.reporter.error('string objid given, but no values map found'); + if (!values.hasOwnProperty(id)) + return this.reporter.error('objid not found in values map'); + id = values[id].split(/[\s\.]+/g); + for (var i = 0; i < id.length; i++) + id[i] |= 0; + } else if (Array.isArray(id)) { + id = id.slice(); + for (var i = 0; i < id.length; i++) + id[i] |= 0; + } - return this; - }; + if (!Array.isArray(id)) { + return this.reporter.error('objid() should be either array or string, ' + + 'got: ' + JSON.stringify(id)); + } - // Add `num` to `this` - BN.prototype.add = function add (num) { - var res; - if (num.negative !== 0 && this.negative === 0) { - num.negative = 0; - res = this.sub(num); - num.negative ^= 1; - return res; - } else if (num.negative === 0 && this.negative !== 0) { - this.negative = 0; - res = num.sub(this); - this.negative = 1; - return res; - } + if (!relative) { + if (id[1] >= 40) + return this.reporter.error('Second objid identifier OOB'); + id.splice(0, 2, id[0] * 40 + id[1]); + } - if (this.length > num.length) return this.clone().iadd(num); + // Count number of octets + var size = 0; + for (var i = 0; i < id.length; i++) { + var ident = id[i]; + for (size++; ident >= 0x80; ident >>= 7) + size++; + } - return num.clone().iadd(this); - }; + var objid = new Buffer(size); + var offset = objid.length - 1; + for (var i = id.length - 1; i >= 0; i--) { + var ident = id[i]; + objid[offset--] = ident & 0x7f; + while ((ident >>= 7) > 0) + objid[offset--] = 0x80 | (ident & 0x7f); + } - // Subtract `num` from `this` in-place - BN.prototype.isub = function isub (num) { - // this - (-num) = this + num - if (num.negative !== 0) { - num.negative = 0; - var r = this.iadd(num); - num.negative = 1; - return r._normSign(); + return this._createEncoderBuffer(objid); +}; - // -this - num = -(this + num) - } else if (this.negative !== 0) { - this.negative = 0; - this.iadd(num); - this.negative = 1; - return this._normSign(); - } +function two(num) { + if (num < 10) + return '0' + num; + else + return num; +} - // At this point both numbers are positive - var cmp = this.cmp(num); +DERNode.prototype._encodeTime = function encodeTime(time, tag) { + var str; + var date = new Date(time); - // Optimization - zeroify - if (cmp === 0) { - this.negative = 0; - this.length = 1; - this.words[0] = 0; - return this; - } + if (tag === 'gentime') { + str = [ + two(date.getFullYear()), + two(date.getUTCMonth() + 1), + two(date.getUTCDate()), + two(date.getUTCHours()), + two(date.getUTCMinutes()), + two(date.getUTCSeconds()), + 'Z' + ].join(''); + } else if (tag === 'utctime') { + str = [ + two(date.getFullYear() % 100), + two(date.getUTCMonth() + 1), + two(date.getUTCDate()), + two(date.getUTCHours()), + two(date.getUTCMinutes()), + two(date.getUTCSeconds()), + 'Z' + ].join(''); + } else { + this.reporter.error('Encoding ' + tag + ' time is not supported yet'); + } - // a > b - var a, b; - if (cmp > 0) { - a = this; - b = num; - } else { - a = num; - b = this; - } + return this._encodeStr(str, 'octstr'); +}; - var carry = 0; - for (var i = 0; i < b.length; i++) { - r = (a.words[i] | 0) - (b.words[i] | 0) + carry; - carry = r >> 26; - this.words[i] = r & 0x3ffffff; - } - for (; carry !== 0 && i < a.length; i++) { - r = (a.words[i] | 0) + carry; - carry = r >> 26; - this.words[i] = r & 0x3ffffff; +DERNode.prototype._encodeNull = function encodeNull() { + return this._createEncoderBuffer(''); +}; + +DERNode.prototype._encodeInt = function encodeInt(num, values) { + if (typeof num === 'string') { + if (!values) + return this.reporter.error('String int or enum given, but no values map'); + if (!values.hasOwnProperty(num)) { + return this.reporter.error('Values map doesn\'t contain: ' + + JSON.stringify(num)); } + num = values[num]; + } - // Copy rest of the words - if (carry === 0 && i < a.length && a !== this) { - for (; i < a.length; i++) { - this.words[i] = a.words[i]; - } + // Bignum, assume big endian + if (typeof num !== 'number' && !Buffer.isBuffer(num)) { + var numArray = num.toArray(); + if (!num.sign && numArray[0] & 0x80) { + numArray.unshift(0); } + num = new Buffer(numArray); + } - this.length = Math.max(this.length, i); + if (Buffer.isBuffer(num)) { + var size = num.length; + if (num.length === 0) + size++; - if (a !== this) { - this.negative = 1; - } + var out = new Buffer(size); + num.copy(out); + if (num.length === 0) + out[0] = 0 + return this._createEncoderBuffer(out); + } - return this.strip(); - }; + if (num < 0x80) + return this._createEncoderBuffer(num); - // Subtract `num` from `this` - BN.prototype.sub = function sub (num) { - return this.clone().isub(num); - }; + if (num < 0x100) + return this._createEncoderBuffer([0, num]); - function smallMulTo (self, num, out) { - out.negative = num.negative ^ self.negative; - var len = (self.length + num.length) | 0; - out.length = len; - len = (len - 1) | 0; + var size = 1; + for (var i = num; i >= 0x100; i >>= 8) + size++; - // Peel one iteration (compiler can't do it, because of code complexity) - var a = self.words[0] | 0; - var b = num.words[0] | 0; - var r = a * b; + var out = new Array(size); + for (var i = out.length - 1; i >= 0; i--) { + out[i] = num & 0xff; + num >>= 8; + } + if(out[0] & 0x80) { + out.unshift(0); + } - var lo = r & 0x3ffffff; - var carry = (r / 0x4000000) | 0; - out.words[0] = lo; + return this._createEncoderBuffer(new Buffer(out)); +}; - for (var k = 1; k < len; k++) { - // Sum all words with the same `i + j = k` and accumulate `ncarry`, - // note that ncarry could be >= 0x3ffffff - var ncarry = carry >>> 26; - var rword = carry & 0x3ffffff; - var maxJ = Math.min(k, num.length - 1); - for (var j = Math.max(0, k - self.length + 1); j <= maxJ; j++) { - var i = (k - j) | 0; - a = self.words[i] | 0; - b = num.words[j] | 0; - r = a * b + rword; - ncarry += (r / 0x4000000) | 0; - rword = r & 0x3ffffff; - } - out.words[k] = rword | 0; - carry = ncarry | 0; - } - if (carry !== 0) { - out.words[k] = carry | 0; - } else { - out.length--; - } +DERNode.prototype._encodeBool = function encodeBool(value) { + return this._createEncoderBuffer(value ? 0xff : 0); +}; - return out.strip(); - } +DERNode.prototype._use = function use(entity, obj) { + if (typeof entity === 'function') + entity = entity(obj); + return entity._getEncoder('der').tree; +}; - // TODO(indutny): it may be reasonable to omit it for users who don't need - // to work with 256-bit numbers, otherwise it gives 20% improvement for 256-bit - // multiplication (like elliptic secp256k1). - var comb10MulTo = function comb10MulTo (self, num, out) { - var a = self.words; - var b = num.words; - var o = out.words; - var c = 0; - var lo; - var mid; - var hi; - var a0 = a[0] | 0; - var al0 = a0 & 0x1fff; - var ah0 = a0 >>> 13; - var a1 = a[1] | 0; - var al1 = a1 & 0x1fff; - var ah1 = a1 >>> 13; - var a2 = a[2] | 0; - var al2 = a2 & 0x1fff; - var ah2 = a2 >>> 13; - var a3 = a[3] | 0; - var al3 = a3 & 0x1fff; - var ah3 = a3 >>> 13; - var a4 = a[4] | 0; - var al4 = a4 & 0x1fff; - var ah4 = a4 >>> 13; - var a5 = a[5] | 0; - var al5 = a5 & 0x1fff; - var ah5 = a5 >>> 13; - var a6 = a[6] | 0; - var al6 = a6 & 0x1fff; - var ah6 = a6 >>> 13; - var a7 = a[7] | 0; - var al7 = a7 & 0x1fff; - var ah7 = a7 >>> 13; - var a8 = a[8] | 0; - var al8 = a8 & 0x1fff; - var ah8 = a8 >>> 13; - var a9 = a[9] | 0; - var al9 = a9 & 0x1fff; - var ah9 = a9 >>> 13; - var b0 = b[0] | 0; - var bl0 = b0 & 0x1fff; - var bh0 = b0 >>> 13; - var b1 = b[1] | 0; - var bl1 = b1 & 0x1fff; - var bh1 = b1 >>> 13; - var b2 = b[2] | 0; - var bl2 = b2 & 0x1fff; - var bh2 = b2 >>> 13; - var b3 = b[3] | 0; - var bl3 = b3 & 0x1fff; - var bh3 = b3 >>> 13; - var b4 = b[4] | 0; - var bl4 = b4 & 0x1fff; - var bh4 = b4 >>> 13; - var b5 = b[5] | 0; - var bl5 = b5 & 0x1fff; - var bh5 = b5 >>> 13; - var b6 = b[6] | 0; - var bl6 = b6 & 0x1fff; - var bh6 = b6 >>> 13; - var b7 = b[7] | 0; - var bl7 = b7 & 0x1fff; - var bh7 = b7 >>> 13; - var b8 = b[8] | 0; - var bl8 = b8 & 0x1fff; - var bh8 = b8 >>> 13; - var b9 = b[9] | 0; - var bl9 = b9 & 0x1fff; - var bh9 = b9 >>> 13; +DERNode.prototype._skipDefault = function skipDefault(dataBuffer, reporter, parent) { + var state = this._baseState; + var i; + if (state['default'] === null) + return false; - out.negative = self.negative ^ num.negative; - out.length = 19; - /* k = 0 */ - lo = Math.imul(al0, bl0); - mid = Math.imul(al0, bh0); - mid = (mid + Math.imul(ah0, bl0)) | 0; - hi = Math.imul(ah0, bh0); - var w0 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; - c = (((hi + (mid >>> 13)) | 0) + (w0 >>> 26)) | 0; - w0 &= 0x3ffffff; - /* k = 1 */ - lo = Math.imul(al1, bl0); - mid = Math.imul(al1, bh0); - mid = (mid + Math.imul(ah1, bl0)) | 0; - hi = Math.imul(ah1, bh0); - lo = (lo + Math.imul(al0, bl1)) | 0; - mid = (mid + Math.imul(al0, bh1)) | 0; - mid = (mid + Math.imul(ah0, bl1)) | 0; - hi = (hi + Math.imul(ah0, bh1)) | 0; - var w1 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; - c = (((hi + (mid >>> 13)) | 0) + (w1 >>> 26)) | 0; - w1 &= 0x3ffffff; - /* k = 2 */ - lo = Math.imul(al2, bl0); - mid = Math.imul(al2, bh0); - mid = (mid + Math.imul(ah2, bl0)) | 0; - hi = Math.imul(ah2, bh0); - lo = (lo + Math.imul(al1, bl1)) | 0; - mid = (mid + Math.imul(al1, bh1)) | 0; - mid = (mid + Math.imul(ah1, bl1)) | 0; - hi = (hi + Math.imul(ah1, bh1)) | 0; - lo = (lo + Math.imul(al0, bl2)) | 0; - mid = (mid + Math.imul(al0, bh2)) | 0; - mid = (mid + Math.imul(ah0, bl2)) | 0; - hi = (hi + Math.imul(ah0, bh2)) | 0; - var w2 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; - c = (((hi + (mid >>> 13)) | 0) + (w2 >>> 26)) | 0; - w2 &= 0x3ffffff; - /* k = 3 */ - lo = Math.imul(al3, bl0); - mid = Math.imul(al3, bh0); - mid = (mid + Math.imul(ah3, bl0)) | 0; - hi = Math.imul(ah3, bh0); - lo = (lo + Math.imul(al2, bl1)) | 0; - mid = (mid + Math.imul(al2, bh1)) | 0; - mid = (mid + Math.imul(ah2, bl1)) | 0; - hi = (hi + Math.imul(ah2, bh1)) | 0; - lo = (lo + Math.imul(al1, bl2)) | 0; - mid = (mid + Math.imul(al1, bh2)) | 0; - mid = (mid + Math.imul(ah1, bl2)) | 0; - hi = (hi + Math.imul(ah1, bh2)) | 0; - lo = (lo + Math.imul(al0, bl3)) | 0; - mid = (mid + Math.imul(al0, bh3)) | 0; - mid = (mid + Math.imul(ah0, bl3)) | 0; - hi = (hi + Math.imul(ah0, bh3)) | 0; - var w3 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; - c = (((hi + (mid >>> 13)) | 0) + (w3 >>> 26)) | 0; - w3 &= 0x3ffffff; - /* k = 4 */ - lo = Math.imul(al4, bl0); - mid = Math.imul(al4, bh0); - mid = (mid + Math.imul(ah4, bl0)) | 0; - hi = Math.imul(ah4, bh0); - lo = (lo + Math.imul(al3, bl1)) | 0; - mid = (mid + Math.imul(al3, bh1)) | 0; - mid = (mid + Math.imul(ah3, bl1)) | 0; - hi = (hi + Math.imul(ah3, bh1)) | 0; - lo = (lo + Math.imul(al2, bl2)) | 0; - mid = (mid + Math.imul(al2, bh2)) | 0; - mid = (mid + Math.imul(ah2, bl2)) | 0; - hi = (hi + Math.imul(ah2, bh2)) | 0; - lo = (lo + Math.imul(al1, bl3)) | 0; - mid = (mid + Math.imul(al1, bh3)) | 0; - mid = (mid + Math.imul(ah1, bl3)) | 0; - hi = (hi + Math.imul(ah1, bh3)) | 0; - lo = (lo + Math.imul(al0, bl4)) | 0; - mid = (mid + Math.imul(al0, bh4)) | 0; - mid = (mid + Math.imul(ah0, bl4)) | 0; - hi = (hi + Math.imul(ah0, bh4)) | 0; - var w4 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; - c = (((hi + (mid >>> 13)) | 0) + (w4 >>> 26)) | 0; - w4 &= 0x3ffffff; - /* k = 5 */ - lo = Math.imul(al5, bl0); - mid = Math.imul(al5, bh0); - mid = (mid + Math.imul(ah5, bl0)) | 0; - hi = Math.imul(ah5, bh0); - lo = (lo + Math.imul(al4, bl1)) | 0; - mid = (mid + Math.imul(al4, bh1)) | 0; - mid = (mid + Math.imul(ah4, bl1)) | 0; - hi = (hi + Math.imul(ah4, bh1)) | 0; - lo = (lo + Math.imul(al3, bl2)) | 0; - mid = (mid + Math.imul(al3, bh2)) | 0; - mid = (mid + Math.imul(ah3, bl2)) | 0; - hi = (hi + Math.imul(ah3, bh2)) | 0; - lo = (lo + Math.imul(al2, bl3)) | 0; - mid = (mid + Math.imul(al2, bh3)) | 0; - mid = (mid + Math.imul(ah2, bl3)) | 0; - hi = (hi + Math.imul(ah2, bh3)) | 0; - lo = (lo + Math.imul(al1, bl4)) | 0; - mid = (mid + Math.imul(al1, bh4)) | 0; - mid = (mid + Math.imul(ah1, bl4)) | 0; - hi = (hi + Math.imul(ah1, bh4)) | 0; - lo = (lo + Math.imul(al0, bl5)) | 0; - mid = (mid + Math.imul(al0, bh5)) | 0; - mid = (mid + Math.imul(ah0, bl5)) | 0; - hi = (hi + Math.imul(ah0, bh5)) | 0; - var w5 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; - c = (((hi + (mid >>> 13)) | 0) + (w5 >>> 26)) | 0; - w5 &= 0x3ffffff; - /* k = 6 */ - lo = Math.imul(al6, bl0); - mid = Math.imul(al6, bh0); - mid = (mid + Math.imul(ah6, bl0)) | 0; - hi = Math.imul(ah6, bh0); - lo = (lo + Math.imul(al5, bl1)) | 0; - mid = (mid + Math.imul(al5, bh1)) | 0; - mid = (mid + Math.imul(ah5, bl1)) | 0; - hi = (hi + Math.imul(ah5, bh1)) | 0; - lo = (lo + Math.imul(al4, bl2)) | 0; - mid = (mid + Math.imul(al4, bh2)) | 0; - mid = (mid + Math.imul(ah4, bl2)) | 0; - hi = (hi + Math.imul(ah4, bh2)) | 0; - lo = (lo + Math.imul(al3, bl3)) | 0; - mid = (mid + Math.imul(al3, bh3)) | 0; - mid = (mid + Math.imul(ah3, bl3)) | 0; - hi = (hi + Math.imul(ah3, bh3)) | 0; - lo = (lo + Math.imul(al2, bl4)) | 0; - mid = (mid + Math.imul(al2, bh4)) | 0; - mid = (mid + Math.imul(ah2, bl4)) | 0; - hi = (hi + Math.imul(ah2, bh4)) | 0; - lo = (lo + Math.imul(al1, bl5)) | 0; - mid = (mid + Math.imul(al1, bh5)) | 0; - mid = (mid + Math.imul(ah1, bl5)) | 0; - hi = (hi + Math.imul(ah1, bh5)) | 0; - lo = (lo + Math.imul(al0, bl6)) | 0; - mid = (mid + Math.imul(al0, bh6)) | 0; - mid = (mid + Math.imul(ah0, bl6)) | 0; - hi = (hi + Math.imul(ah0, bh6)) | 0; - var w6 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; - c = (((hi + (mid >>> 13)) | 0) + (w6 >>> 26)) | 0; - w6 &= 0x3ffffff; - /* k = 7 */ - lo = Math.imul(al7, bl0); - mid = Math.imul(al7, bh0); - mid = (mid + Math.imul(ah7, bl0)) | 0; - hi = Math.imul(ah7, bh0); - lo = (lo + Math.imul(al6, bl1)) | 0; - mid = (mid + Math.imul(al6, bh1)) | 0; - mid = (mid + Math.imul(ah6, bl1)) | 0; - hi = (hi + Math.imul(ah6, bh1)) | 0; - lo = (lo + Math.imul(al5, bl2)) | 0; - mid = (mid + Math.imul(al5, bh2)) | 0; - mid = (mid + Math.imul(ah5, bl2)) | 0; - hi = (hi + Math.imul(ah5, bh2)) | 0; - lo = (lo + Math.imul(al4, bl3)) | 0; - mid = (mid + Math.imul(al4, bh3)) | 0; - mid = (mid + Math.imul(ah4, bl3)) | 0; - hi = (hi + Math.imul(ah4, bh3)) | 0; - lo = (lo + Math.imul(al3, bl4)) | 0; - mid = (mid + Math.imul(al3, bh4)) | 0; - mid = (mid + Math.imul(ah3, bl4)) | 0; - hi = (hi + Math.imul(ah3, bh4)) | 0; - lo = (lo + Math.imul(al2, bl5)) | 0; - mid = (mid + Math.imul(al2, bh5)) | 0; - mid = (mid + Math.imul(ah2, bl5)) | 0; - hi = (hi + Math.imul(ah2, bh5)) | 0; - lo = (lo + Math.imul(al1, bl6)) | 0; - mid = (mid + Math.imul(al1, bh6)) | 0; - mid = (mid + Math.imul(ah1, bl6)) | 0; - hi = (hi + Math.imul(ah1, bh6)) | 0; - lo = (lo + Math.imul(al0, bl7)) | 0; - mid = (mid + Math.imul(al0, bh7)) | 0; - mid = (mid + Math.imul(ah0, bl7)) | 0; - hi = (hi + Math.imul(ah0, bh7)) | 0; - var w7 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; - c = (((hi + (mid >>> 13)) | 0) + (w7 >>> 26)) | 0; - w7 &= 0x3ffffff; - /* k = 8 */ - lo = Math.imul(al8, bl0); - mid = Math.imul(al8, bh0); - mid = (mid + Math.imul(ah8, bl0)) | 0; - hi = Math.imul(ah8, bh0); - lo = (lo + Math.imul(al7, bl1)) | 0; - mid = (mid + Math.imul(al7, bh1)) | 0; - mid = (mid + Math.imul(ah7, bl1)) | 0; - hi = (hi + Math.imul(ah7, bh1)) | 0; - lo = (lo + Math.imul(al6, bl2)) | 0; - mid = (mid + Math.imul(al6, bh2)) | 0; - mid = (mid + Math.imul(ah6, bl2)) | 0; - hi = (hi + Math.imul(ah6, bh2)) | 0; - lo = (lo + Math.imul(al5, bl3)) | 0; - mid = (mid + Math.imul(al5, bh3)) | 0; - mid = (mid + Math.imul(ah5, bl3)) | 0; - hi = (hi + Math.imul(ah5, bh3)) | 0; - lo = (lo + Math.imul(al4, bl4)) | 0; - mid = (mid + Math.imul(al4, bh4)) | 0; - mid = (mid + Math.imul(ah4, bl4)) | 0; - hi = (hi + Math.imul(ah4, bh4)) | 0; - lo = (lo + Math.imul(al3, bl5)) | 0; - mid = (mid + Math.imul(al3, bh5)) | 0; - mid = (mid + Math.imul(ah3, bl5)) | 0; - hi = (hi + Math.imul(ah3, bh5)) | 0; - lo = (lo + Math.imul(al2, bl6)) | 0; - mid = (mid + Math.imul(al2, bh6)) | 0; - mid = (mid + Math.imul(ah2, bl6)) | 0; - hi = (hi + Math.imul(ah2, bh6)) | 0; - lo = (lo + Math.imul(al1, bl7)) | 0; - mid = (mid + Math.imul(al1, bh7)) | 0; - mid = (mid + Math.imul(ah1, bl7)) | 0; - hi = (hi + Math.imul(ah1, bh7)) | 0; - lo = (lo + Math.imul(al0, bl8)) | 0; - mid = (mid + Math.imul(al0, bh8)) | 0; - mid = (mid + Math.imul(ah0, bl8)) | 0; - hi = (hi + Math.imul(ah0, bh8)) | 0; - var w8 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; - c = (((hi + (mid >>> 13)) | 0) + (w8 >>> 26)) | 0; - w8 &= 0x3ffffff; - /* k = 9 */ - lo = Math.imul(al9, bl0); - mid = Math.imul(al9, bh0); - mid = (mid + Math.imul(ah9, bl0)) | 0; - hi = Math.imul(ah9, bh0); - lo = (lo + Math.imul(al8, bl1)) | 0; - mid = (mid + Math.imul(al8, bh1)) | 0; - mid = (mid + Math.imul(ah8, bl1)) | 0; - hi = (hi + Math.imul(ah8, bh1)) | 0; - lo = (lo + Math.imul(al7, bl2)) | 0; - mid = (mid + Math.imul(al7, bh2)) | 0; - mid = (mid + Math.imul(ah7, bl2)) | 0; - hi = (hi + Math.imul(ah7, bh2)) | 0; - lo = (lo + Math.imul(al6, bl3)) | 0; - mid = (mid + Math.imul(al6, bh3)) | 0; - mid = (mid + Math.imul(ah6, bl3)) | 0; - hi = (hi + Math.imul(ah6, bh3)) | 0; - lo = (lo + Math.imul(al5, bl4)) | 0; - mid = (mid + Math.imul(al5, bh4)) | 0; - mid = (mid + Math.imul(ah5, bl4)) | 0; - hi = (hi + Math.imul(ah5, bh4)) | 0; - lo = (lo + Math.imul(al4, bl5)) | 0; - mid = (mid + Math.imul(al4, bh5)) | 0; - mid = (mid + Math.imul(ah4, bl5)) | 0; - hi = (hi + Math.imul(ah4, bh5)) | 0; - lo = (lo + Math.imul(al3, bl6)) | 0; - mid = (mid + Math.imul(al3, bh6)) | 0; - mid = (mid + Math.imul(ah3, bl6)) | 0; - hi = (hi + Math.imul(ah3, bh6)) | 0; - lo = (lo + Math.imul(al2, bl7)) | 0; - mid = (mid + Math.imul(al2, bh7)) | 0; - mid = (mid + Math.imul(ah2, bl7)) | 0; - hi = (hi + Math.imul(ah2, bh7)) | 0; - lo = (lo + Math.imul(al1, bl8)) | 0; - mid = (mid + Math.imul(al1, bh8)) | 0; - mid = (mid + Math.imul(ah1, bl8)) | 0; - hi = (hi + Math.imul(ah1, bh8)) | 0; - lo = (lo + Math.imul(al0, bl9)) | 0; - mid = (mid + Math.imul(al0, bh9)) | 0; - mid = (mid + Math.imul(ah0, bl9)) | 0; - hi = (hi + Math.imul(ah0, bh9)) | 0; - var w9 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; - c = (((hi + (mid >>> 13)) | 0) + (w9 >>> 26)) | 0; - w9 &= 0x3ffffff; - /* k = 10 */ - lo = Math.imul(al9, bl1); - mid = Math.imul(al9, bh1); - mid = (mid + Math.imul(ah9, bl1)) | 0; - hi = Math.imul(ah9, bh1); - lo = (lo + Math.imul(al8, bl2)) | 0; - mid = (mid + Math.imul(al8, bh2)) | 0; - mid = (mid + Math.imul(ah8, bl2)) | 0; - hi = (hi + Math.imul(ah8, bh2)) | 0; - lo = (lo + Math.imul(al7, bl3)) | 0; - mid = (mid + Math.imul(al7, bh3)) | 0; - mid = (mid + Math.imul(ah7, bl3)) | 0; - hi = (hi + Math.imul(ah7, bh3)) | 0; - lo = (lo + Math.imul(al6, bl4)) | 0; - mid = (mid + Math.imul(al6, bh4)) | 0; - mid = (mid + Math.imul(ah6, bl4)) | 0; - hi = (hi + Math.imul(ah6, bh4)) | 0; - lo = (lo + Math.imul(al5, bl5)) | 0; - mid = (mid + Math.imul(al5, bh5)) | 0; - mid = (mid + Math.imul(ah5, bl5)) | 0; - hi = (hi + Math.imul(ah5, bh5)) | 0; - lo = (lo + Math.imul(al4, bl6)) | 0; - mid = (mid + Math.imul(al4, bh6)) | 0; - mid = (mid + Math.imul(ah4, bl6)) | 0; - hi = (hi + Math.imul(ah4, bh6)) | 0; - lo = (lo + Math.imul(al3, bl7)) | 0; - mid = (mid + Math.imul(al3, bh7)) | 0; - mid = (mid + Math.imul(ah3, bl7)) | 0; - hi = (hi + Math.imul(ah3, bh7)) | 0; - lo = (lo + Math.imul(al2, bl8)) | 0; - mid = (mid + Math.imul(al2, bh8)) | 0; - mid = (mid + Math.imul(ah2, bl8)) | 0; - hi = (hi + Math.imul(ah2, bh8)) | 0; - lo = (lo + Math.imul(al1, bl9)) | 0; - mid = (mid + Math.imul(al1, bh9)) | 0; - mid = (mid + Math.imul(ah1, bl9)) | 0; - hi = (hi + Math.imul(ah1, bh9)) | 0; - var w10 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; - c = (((hi + (mid >>> 13)) | 0) + (w10 >>> 26)) | 0; - w10 &= 0x3ffffff; - /* k = 11 */ - lo = Math.imul(al9, bl2); - mid = Math.imul(al9, bh2); - mid = (mid + Math.imul(ah9, bl2)) | 0; - hi = Math.imul(ah9, bh2); - lo = (lo + Math.imul(al8, bl3)) | 0; - mid = (mid + Math.imul(al8, bh3)) | 0; - mid = (mid + Math.imul(ah8, bl3)) | 0; - hi = (hi + Math.imul(ah8, bh3)) | 0; - lo = (lo + Math.imul(al7, bl4)) | 0; - mid = (mid + Math.imul(al7, bh4)) | 0; - mid = (mid + Math.imul(ah7, bl4)) | 0; - hi = (hi + Math.imul(ah7, bh4)) | 0; - lo = (lo + Math.imul(al6, bl5)) | 0; - mid = (mid + Math.imul(al6, bh5)) | 0; - mid = (mid + Math.imul(ah6, bl5)) | 0; - hi = (hi + Math.imul(ah6, bh5)) | 0; - lo = (lo + Math.imul(al5, bl6)) | 0; - mid = (mid + Math.imul(al5, bh6)) | 0; - mid = (mid + Math.imul(ah5, bl6)) | 0; - hi = (hi + Math.imul(ah5, bh6)) | 0; - lo = (lo + Math.imul(al4, bl7)) | 0; - mid = (mid + Math.imul(al4, bh7)) | 0; - mid = (mid + Math.imul(ah4, bl7)) | 0; - hi = (hi + Math.imul(ah4, bh7)) | 0; - lo = (lo + Math.imul(al3, bl8)) | 0; - mid = (mid + Math.imul(al3, bh8)) | 0; - mid = (mid + Math.imul(ah3, bl8)) | 0; - hi = (hi + Math.imul(ah3, bh8)) | 0; - lo = (lo + Math.imul(al2, bl9)) | 0; - mid = (mid + Math.imul(al2, bh9)) | 0; - mid = (mid + Math.imul(ah2, bl9)) | 0; - hi = (hi + Math.imul(ah2, bh9)) | 0; - var w11 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; - c = (((hi + (mid >>> 13)) | 0) + (w11 >>> 26)) | 0; - w11 &= 0x3ffffff; - /* k = 12 */ - lo = Math.imul(al9, bl3); - mid = Math.imul(al9, bh3); - mid = (mid + Math.imul(ah9, bl3)) | 0; - hi = Math.imul(ah9, bh3); - lo = (lo + Math.imul(al8, bl4)) | 0; - mid = (mid + Math.imul(al8, bh4)) | 0; - mid = (mid + Math.imul(ah8, bl4)) | 0; - hi = (hi + Math.imul(ah8, bh4)) | 0; - lo = (lo + Math.imul(al7, bl5)) | 0; - mid = (mid + Math.imul(al7, bh5)) | 0; - mid = (mid + Math.imul(ah7, bl5)) | 0; - hi = (hi + Math.imul(ah7, bh5)) | 0; - lo = (lo + Math.imul(al6, bl6)) | 0; - mid = (mid + Math.imul(al6, bh6)) | 0; - mid = (mid + Math.imul(ah6, bl6)) | 0; - hi = (hi + Math.imul(ah6, bh6)) | 0; - lo = (lo + Math.imul(al5, bl7)) | 0; - mid = (mid + Math.imul(al5, bh7)) | 0; - mid = (mid + Math.imul(ah5, bl7)) | 0; - hi = (hi + Math.imul(ah5, bh7)) | 0; - lo = (lo + Math.imul(al4, bl8)) | 0; - mid = (mid + Math.imul(al4, bh8)) | 0; - mid = (mid + Math.imul(ah4, bl8)) | 0; - hi = (hi + Math.imul(ah4, bh8)) | 0; - lo = (lo + Math.imul(al3, bl9)) | 0; - mid = (mid + Math.imul(al3, bh9)) | 0; - mid = (mid + Math.imul(ah3, bl9)) | 0; - hi = (hi + Math.imul(ah3, bh9)) | 0; - var w12 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; - c = (((hi + (mid >>> 13)) | 0) + (w12 >>> 26)) | 0; - w12 &= 0x3ffffff; - /* k = 13 */ - lo = Math.imul(al9, bl4); - mid = Math.imul(al9, bh4); - mid = (mid + Math.imul(ah9, bl4)) | 0; - hi = Math.imul(ah9, bh4); - lo = (lo + Math.imul(al8, bl5)) | 0; - mid = (mid + Math.imul(al8, bh5)) | 0; - mid = (mid + Math.imul(ah8, bl5)) | 0; - hi = (hi + Math.imul(ah8, bh5)) | 0; - lo = (lo + Math.imul(al7, bl6)) | 0; - mid = (mid + Math.imul(al7, bh6)) | 0; - mid = (mid + Math.imul(ah7, bl6)) | 0; - hi = (hi + Math.imul(ah7, bh6)) | 0; - lo = (lo + Math.imul(al6, bl7)) | 0; - mid = (mid + Math.imul(al6, bh7)) | 0; - mid = (mid + Math.imul(ah6, bl7)) | 0; - hi = (hi + Math.imul(ah6, bh7)) | 0; - lo = (lo + Math.imul(al5, bl8)) | 0; - mid = (mid + Math.imul(al5, bh8)) | 0; - mid = (mid + Math.imul(ah5, bl8)) | 0; - hi = (hi + Math.imul(ah5, bh8)) | 0; - lo = (lo + Math.imul(al4, bl9)) | 0; - mid = (mid + Math.imul(al4, bh9)) | 0; - mid = (mid + Math.imul(ah4, bl9)) | 0; - hi = (hi + Math.imul(ah4, bh9)) | 0; - var w13 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; - c = (((hi + (mid >>> 13)) | 0) + (w13 >>> 26)) | 0; - w13 &= 0x3ffffff; - /* k = 14 */ - lo = Math.imul(al9, bl5); - mid = Math.imul(al9, bh5); - mid = (mid + Math.imul(ah9, bl5)) | 0; - hi = Math.imul(ah9, bh5); - lo = (lo + Math.imul(al8, bl6)) | 0; - mid = (mid + Math.imul(al8, bh6)) | 0; - mid = (mid + Math.imul(ah8, bl6)) | 0; - hi = (hi + Math.imul(ah8, bh6)) | 0; - lo = (lo + Math.imul(al7, bl7)) | 0; - mid = (mid + Math.imul(al7, bh7)) | 0; - mid = (mid + Math.imul(ah7, bl7)) | 0; - hi = (hi + Math.imul(ah7, bh7)) | 0; - lo = (lo + Math.imul(al6, bl8)) | 0; - mid = (mid + Math.imul(al6, bh8)) | 0; - mid = (mid + Math.imul(ah6, bl8)) | 0; - hi = (hi + Math.imul(ah6, bh8)) | 0; - lo = (lo + Math.imul(al5, bl9)) | 0; - mid = (mid + Math.imul(al5, bh9)) | 0; - mid = (mid + Math.imul(ah5, bl9)) | 0; - hi = (hi + Math.imul(ah5, bh9)) | 0; - var w14 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; - c = (((hi + (mid >>> 13)) | 0) + (w14 >>> 26)) | 0; - w14 &= 0x3ffffff; - /* k = 15 */ - lo = Math.imul(al9, bl6); - mid = Math.imul(al9, bh6); - mid = (mid + Math.imul(ah9, bl6)) | 0; - hi = Math.imul(ah9, bh6); - lo = (lo + Math.imul(al8, bl7)) | 0; - mid = (mid + Math.imul(al8, bh7)) | 0; - mid = (mid + Math.imul(ah8, bl7)) | 0; - hi = (hi + Math.imul(ah8, bh7)) | 0; - lo = (lo + Math.imul(al7, bl8)) | 0; - mid = (mid + Math.imul(al7, bh8)) | 0; - mid = (mid + Math.imul(ah7, bl8)) | 0; - hi = (hi + Math.imul(ah7, bh8)) | 0; - lo = (lo + Math.imul(al6, bl9)) | 0; - mid = (mid + Math.imul(al6, bh9)) | 0; - mid = (mid + Math.imul(ah6, bl9)) | 0; - hi = (hi + Math.imul(ah6, bh9)) | 0; - var w15 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; - c = (((hi + (mid >>> 13)) | 0) + (w15 >>> 26)) | 0; - w15 &= 0x3ffffff; - /* k = 16 */ - lo = Math.imul(al9, bl7); - mid = Math.imul(al9, bh7); - mid = (mid + Math.imul(ah9, bl7)) | 0; - hi = Math.imul(ah9, bh7); - lo = (lo + Math.imul(al8, bl8)) | 0; - mid = (mid + Math.imul(al8, bh8)) | 0; - mid = (mid + Math.imul(ah8, bl8)) | 0; - hi = (hi + Math.imul(ah8, bh8)) | 0; - lo = (lo + Math.imul(al7, bl9)) | 0; - mid = (mid + Math.imul(al7, bh9)) | 0; - mid = (mid + Math.imul(ah7, bl9)) | 0; - hi = (hi + Math.imul(ah7, bh9)) | 0; - var w16 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; - c = (((hi + (mid >>> 13)) | 0) + (w16 >>> 26)) | 0; - w16 &= 0x3ffffff; - /* k = 17 */ - lo = Math.imul(al9, bl8); - mid = Math.imul(al9, bh8); - mid = (mid + Math.imul(ah9, bl8)) | 0; - hi = Math.imul(ah9, bh8); - lo = (lo + Math.imul(al8, bl9)) | 0; - mid = (mid + Math.imul(al8, bh9)) | 0; - mid = (mid + Math.imul(ah8, bl9)) | 0; - hi = (hi + Math.imul(ah8, bh9)) | 0; - var w17 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; - c = (((hi + (mid >>> 13)) | 0) + (w17 >>> 26)) | 0; - w17 &= 0x3ffffff; - /* k = 18 */ - lo = Math.imul(al9, bl9); - mid = Math.imul(al9, bh9); - mid = (mid + Math.imul(ah9, bl9)) | 0; - hi = Math.imul(ah9, bh9); - var w18 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; - c = (((hi + (mid >>> 13)) | 0) + (w18 >>> 26)) | 0; - w18 &= 0x3ffffff; - o[0] = w0; - o[1] = w1; - o[2] = w2; - o[3] = w3; - o[4] = w4; - o[5] = w5; - o[6] = w6; - o[7] = w7; - o[8] = w8; - o[9] = w9; - o[10] = w10; - o[11] = w11; - o[12] = w12; - o[13] = w13; - o[14] = w14; - o[15] = w15; - o[16] = w16; - o[17] = w17; - o[18] = w18; - if (c !== 0) { - o[19] = c; - out.length++; - } - return out; - }; - - // Polyfill comb - if (!Math.imul) { - comb10MulTo = smallMulTo; - } - - function bigMulTo (self, num, out) { - out.negative = num.negative ^ self.negative; - out.length = self.length + num.length; - - var carry = 0; - var hncarry = 0; - for (var k = 0; k < out.length - 1; k++) { - // Sum all words with the same `i + j = k` and accumulate `ncarry`, - // note that ncarry could be >= 0x3ffffff - var ncarry = hncarry; - hncarry = 0; - var rword = carry & 0x3ffffff; - var maxJ = Math.min(k, num.length - 1); - for (var j = Math.max(0, k - self.length + 1); j <= maxJ; j++) { - var i = k - j; - var a = self.words[i] | 0; - var b = num.words[j] | 0; - var r = a * b; - - var lo = r & 0x3ffffff; - ncarry = (ncarry + ((r / 0x4000000) | 0)) | 0; - lo = (lo + rword) | 0; - rword = lo & 0x3ffffff; - ncarry = (ncarry + (lo >>> 26)) | 0; - - hncarry += ncarry >>> 26; - ncarry &= 0x3ffffff; - } - out.words[k] = rword; - carry = ncarry; - ncarry = hncarry; - } - if (carry !== 0) { - out.words[k] = carry; - } else { - out.length--; - } - - return out.strip(); - } - - function jumboMulTo (self, num, out) { - var fftm = new FFTM(); - return fftm.mulp(self, num, out); - } - - BN.prototype.mulTo = function mulTo (num, out) { - var res; - var len = this.length + num.length; - if (this.length === 10 && num.length === 10) { - res = comb10MulTo(this, num, out); - } else if (len < 63) { - res = smallMulTo(this, num, out); - } else if (len < 1024) { - res = bigMulTo(this, num, out); - } else { - res = jumboMulTo(this, num, out); - } - - return res; - }; - - // Cooley-Tukey algorithm for FFT - // slightly revisited to rely on looping instead of recursion - - function FFTM (x, y) { - this.x = x; - this.y = y; - } - - FFTM.prototype.makeRBT = function makeRBT (N) { - var t = new Array(N); - var l = BN.prototype._countBits(N) - 1; - for (var i = 0; i < N; i++) { - t[i] = this.revBin(i, l, N); - } - - return t; - }; - - // Returns binary-reversed representation of `x` - FFTM.prototype.revBin = function revBin (x, l, N) { - if (x === 0 || x === N - 1) return x; - - var rb = 0; - for (var i = 0; i < l; i++) { - rb |= (x & 1) << (l - i - 1); - x >>= 1; - } - - return rb; - }; - - // Performs "tweedling" phase, therefore 'emulating' - // behaviour of the recursive algorithm - FFTM.prototype.permute = function permute (rbt, rws, iws, rtws, itws, N) { - for (var i = 0; i < N; i++) { - rtws[i] = rws[rbt[i]]; - itws[i] = iws[rbt[i]]; - } - }; - - FFTM.prototype.transform = function transform (rws, iws, rtws, itws, N, rbt) { - this.permute(rbt, rws, iws, rtws, itws, N); - - for (var s = 1; s < N; s <<= 1) { - var l = s << 1; - - var rtwdf = Math.cos(2 * Math.PI / l); - var itwdf = Math.sin(2 * Math.PI / l); - - for (var p = 0; p < N; p += l) { - var rtwdf_ = rtwdf; - var itwdf_ = itwdf; - - for (var j = 0; j < s; j++) { - var re = rtws[p + j]; - var ie = itws[p + j]; - - var ro = rtws[p + j + s]; - var io = itws[p + j + s]; - - var rx = rtwdf_ * ro - itwdf_ * io; - - io = rtwdf_ * io + itwdf_ * ro; - ro = rx; - - rtws[p + j] = re + ro; - itws[p + j] = ie + io; - - rtws[p + j + s] = re - ro; - itws[p + j + s] = ie - io; - - /* jshint maxdepth : false */ - if (j !== l) { - rx = rtwdf * rtwdf_ - itwdf * itwdf_; - - itwdf_ = rtwdf * itwdf_ + itwdf * rtwdf_; - rtwdf_ = rx; - } - } - } - } - }; - - FFTM.prototype.guessLen13b = function guessLen13b (n, m) { - var N = Math.max(m, n) | 1; - var odd = N & 1; - var i = 0; - for (N = N / 2 | 0; N; N = N >>> 1) { - i++; - } - - return 1 << i + 1 + odd; - }; - - FFTM.prototype.conjugate = function conjugate (rws, iws, N) { - if (N <= 1) return; - - for (var i = 0; i < N / 2; i++) { - var t = rws[i]; - - rws[i] = rws[N - i - 1]; - rws[N - i - 1] = t; - - t = iws[i]; - - iws[i] = -iws[N - i - 1]; - iws[N - i - 1] = -t; - } - }; - - FFTM.prototype.normalize13b = function normalize13b (ws, N) { - var carry = 0; - for (var i = 0; i < N / 2; i++) { - var w = Math.round(ws[2 * i + 1] / N) * 0x2000 + - Math.round(ws[2 * i] / N) + - carry; - - ws[i] = w & 0x3ffffff; - - if (w < 0x4000000) { - carry = 0; - } else { - carry = w / 0x4000000 | 0; - } - } - - return ws; - }; - - FFTM.prototype.convert13b = function convert13b (ws, len, rws, N) { - var carry = 0; - for (var i = 0; i < len; i++) { - carry = carry + (ws[i] | 0); - - rws[2 * i] = carry & 0x1fff; carry = carry >>> 13; - rws[2 * i + 1] = carry & 0x1fff; carry = carry >>> 13; - } - - // Pad with zeroes - for (i = 2 * len; i < N; ++i) { - rws[i] = 0; - } - - assert(carry === 0); - assert((carry & ~0x1fff) === 0); - }; - - FFTM.prototype.stub = function stub (N) { - var ph = new Array(N); - for (var i = 0; i < N; i++) { - ph[i] = 0; - } - - return ph; - }; - - FFTM.prototype.mulp = function mulp (x, y, out) { - var N = 2 * this.guessLen13b(x.length, y.length); - - var rbt = this.makeRBT(N); - - var _ = this.stub(N); - - var rws = new Array(N); - var rwst = new Array(N); - var iwst = new Array(N); - - var nrws = new Array(N); - var nrwst = new Array(N); - var niwst = new Array(N); - - var rmws = out.words; - rmws.length = N; - - this.convert13b(x.words, x.length, rws, N); - this.convert13b(y.words, y.length, nrws, N); - - this.transform(rws, _, rwst, iwst, N, rbt); - this.transform(nrws, _, nrwst, niwst, N, rbt); - - for (var i = 0; i < N; i++) { - var rx = rwst[i] * nrwst[i] - iwst[i] * niwst[i]; - iwst[i] = rwst[i] * niwst[i] + iwst[i] * nrwst[i]; - rwst[i] = rx; - } - - this.conjugate(rwst, iwst, N); - this.transform(rwst, iwst, rmws, _, N, rbt); - this.conjugate(rmws, _, N); - this.normalize13b(rmws, N); - - out.negative = x.negative ^ y.negative; - out.length = x.length + y.length; - return out.strip(); - }; - - // Multiply `this` by `num` - BN.prototype.mul = function mul (num) { - var out = new BN(null); - out.words = new Array(this.length + num.length); - return this.mulTo(num, out); - }; - - // Multiply employing FFT - BN.prototype.mulf = function mulf (num) { - var out = new BN(null); - out.words = new Array(this.length + num.length); - return jumboMulTo(this, num, out); - }; - - // In-place Multiplication - BN.prototype.imul = function imul (num) { - return this.clone().mulTo(num, this); - }; - - BN.prototype.imuln = function imuln (num) { - assert(typeof num === 'number'); - assert(num < 0x4000000); - - // Carry - var carry = 0; - for (var i = 0; i < this.length; i++) { - var w = (this.words[i] | 0) * num; - var lo = (w & 0x3ffffff) + (carry & 0x3ffffff); - carry >>= 26; - carry += (w / 0x4000000) | 0; - // NOTE: lo is 27bit maximum - carry += lo >>> 26; - this.words[i] = lo & 0x3ffffff; - } - - if (carry !== 0) { - this.words[i] = carry; - this.length++; - } - - return this; - }; - - BN.prototype.muln = function muln (num) { - return this.clone().imuln(num); - }; - - // `this` * `this` - BN.prototype.sqr = function sqr () { - return this.mul(this); - }; - - // `this` * `this` in-place - BN.prototype.isqr = function isqr () { - return this.imul(this.clone()); - }; - - // Math.pow(`this`, `num`) - BN.prototype.pow = function pow (num) { - var w = toBitArray(num); - if (w.length === 0) return new BN(1); - - // Skip leading zeroes - var res = this; - for (var i = 0; i < w.length; i++, res = res.sqr()) { - if (w[i] !== 0) break; - } - - if (++i < w.length) { - for (var q = res.sqr(); i < w.length; i++, q = q.sqr()) { - if (w[i] === 0) continue; - - res = res.mul(q); - } - } - - return res; - }; - - // Shift-left in-place - BN.prototype.iushln = function iushln (bits) { - assert(typeof bits === 'number' && bits >= 0); - var r = bits % 26; - var s = (bits - r) / 26; - var carryMask = (0x3ffffff >>> (26 - r)) << (26 - r); - var i; - - if (r !== 0) { - var carry = 0; - - for (i = 0; i < this.length; i++) { - var newCarry = this.words[i] & carryMask; - var c = ((this.words[i] | 0) - newCarry) << r; - this.words[i] = c | carry; - carry = newCarry >>> (26 - r); - } - - if (carry) { - this.words[i] = carry; - this.length++; - } - } - - if (s !== 0) { - for (i = this.length - 1; i >= 0; i--) { - this.words[i + s] = this.words[i]; - } - - for (i = 0; i < s; i++) { - this.words[i] = 0; - } - - this.length += s; - } - - return this.strip(); - }; - - BN.prototype.ishln = function ishln (bits) { - // TODO(indutny): implement me - assert(this.negative === 0); - return this.iushln(bits); - }; - - // Shift-right in-place - // NOTE: `hint` is a lowest bit before trailing zeroes - // NOTE: if `extended` is present - it will be filled with destroyed bits - BN.prototype.iushrn = function iushrn (bits, hint, extended) { - assert(typeof bits === 'number' && bits >= 0); - var h; - if (hint) { - h = (hint - (hint % 26)) / 26; - } else { - h = 0; - } - - var r = bits % 26; - var s = Math.min((bits - r) / 26, this.length); - var mask = 0x3ffffff ^ ((0x3ffffff >>> r) << r); - var maskedWords = extended; - - h -= s; - h = Math.max(0, h); - - // Extended mode, copy masked part - if (maskedWords) { - for (var i = 0; i < s; i++) { - maskedWords.words[i] = this.words[i]; - } - maskedWords.length = s; - } - - if (s === 0) { - // No-op, we should not move anything at all - } else if (this.length > s) { - this.length -= s; - for (i = 0; i < this.length; i++) { - this.words[i] = this.words[i + s]; - } - } else { - this.words[0] = 0; - this.length = 1; - } - - var carry = 0; - for (i = this.length - 1; i >= 0 && (carry !== 0 || i >= h); i--) { - var word = this.words[i] | 0; - this.words[i] = (carry << (26 - r)) | (word >>> r); - carry = word & mask; - } - - // Push carried bits as a mask - if (maskedWords && carry !== 0) { - maskedWords.words[maskedWords.length++] = carry; - } - - if (this.length === 0) { - this.words[0] = 0; - this.length = 1; - } - - return this.strip(); - }; - - BN.prototype.ishrn = function ishrn (bits, hint, extended) { - // TODO(indutny): implement me - assert(this.negative === 0); - return this.iushrn(bits, hint, extended); - }; - - // Shift-left - BN.prototype.shln = function shln (bits) { - return this.clone().ishln(bits); - }; - - BN.prototype.ushln = function ushln (bits) { - return this.clone().iushln(bits); - }; - - // Shift-right - BN.prototype.shrn = function shrn (bits) { - return this.clone().ishrn(bits); - }; - - BN.prototype.ushrn = function ushrn (bits) { - return this.clone().iushrn(bits); - }; - - // Test if n bit is set - BN.prototype.testn = function testn (bit) { - assert(typeof bit === 'number' && bit >= 0); - var r = bit % 26; - var s = (bit - r) / 26; - var q = 1 << r; - - // Fast case: bit is much higher than all existing words - if (this.length <= s) return false; - - // Check bit and return - var w = this.words[s]; - - return !!(w & q); - }; - - // Return only lowers bits of number (in-place) - BN.prototype.imaskn = function imaskn (bits) { - assert(typeof bits === 'number' && bits >= 0); - var r = bits % 26; - var s = (bits - r) / 26; - - assert(this.negative === 0, 'imaskn works only with positive numbers'); - - if (this.length <= s) { - return this; - } - - if (r !== 0) { - s++; - } - this.length = Math.min(s, this.length); - - if (r !== 0) { - var mask = 0x3ffffff ^ ((0x3ffffff >>> r) << r); - this.words[this.length - 1] &= mask; - } - - return this.strip(); - }; - - // Return only lowers bits of number - BN.prototype.maskn = function maskn (bits) { - return this.clone().imaskn(bits); - }; - - // Add plain number `num` to `this` - BN.prototype.iaddn = function iaddn (num) { - assert(typeof num === 'number'); - assert(num < 0x4000000); - if (num < 0) return this.isubn(-num); - - // Possible sign change - if (this.negative !== 0) { - if (this.length === 1 && (this.words[0] | 0) < num) { - this.words[0] = num - (this.words[0] | 0); - this.negative = 0; - return this; - } - - this.negative = 0; - this.isubn(num); - this.negative = 1; - return this; - } - - // Add without checks - return this._iaddn(num); - }; - - BN.prototype._iaddn = function _iaddn (num) { - this.words[0] += num; - - // Carry - for (var i = 0; i < this.length && this.words[i] >= 0x4000000; i++) { - this.words[i] -= 0x4000000; - if (i === this.length - 1) { - this.words[i + 1] = 1; - } else { - this.words[i + 1]++; - } - } - this.length = Math.max(this.length, i + 1); - - return this; - }; - - // Subtract plain number `num` from `this` - BN.prototype.isubn = function isubn (num) { - assert(typeof num === 'number'); - assert(num < 0x4000000); - if (num < 0) return this.iaddn(-num); - - if (this.negative !== 0) { - this.negative = 0; - this.iaddn(num); - this.negative = 1; - return this; - } - - this.words[0] -= num; - - if (this.length === 1 && this.words[0] < 0) { - this.words[0] = -this.words[0]; - this.negative = 1; - } else { - // Carry - for (var i = 0; i < this.length && this.words[i] < 0; i++) { - this.words[i] += 0x4000000; - this.words[i + 1] -= 1; - } - } - - return this.strip(); - }; - - BN.prototype.addn = function addn (num) { - return this.clone().iaddn(num); - }; - - BN.prototype.subn = function subn (num) { - return this.clone().isubn(num); - }; - - BN.prototype.iabs = function iabs () { - this.negative = 0; - - return this; - }; - - BN.prototype.abs = function abs () { - return this.clone().iabs(); - }; - - BN.prototype._ishlnsubmul = function _ishlnsubmul (num, mul, shift) { - var len = num.length + shift; - var i; - - this._expand(len); - - var w; - var carry = 0; - for (i = 0; i < num.length; i++) { - w = (this.words[i + shift] | 0) + carry; - var right = (num.words[i] | 0) * mul; - w -= right & 0x3ffffff; - carry = (w >> 26) - ((right / 0x4000000) | 0); - this.words[i + shift] = w & 0x3ffffff; - } - for (; i < this.length - shift; i++) { - w = (this.words[i + shift] | 0) + carry; - carry = w >> 26; - this.words[i + shift] = w & 0x3ffffff; - } - - if (carry === 0) return this.strip(); - - // Subtraction overflow - assert(carry === -1); - carry = 0; - for (i = 0; i < this.length; i++) { - w = -(this.words[i] | 0) + carry; - carry = w >> 26; - this.words[i] = w & 0x3ffffff; - } - this.negative = 1; - - return this.strip(); - }; - - BN.prototype._wordDiv = function _wordDiv (num, mode) { - var shift = this.length - num.length; - - var a = this.clone(); - var b = num; - - // Normalize - var bhi = b.words[b.length - 1] | 0; - var bhiBits = this._countBits(bhi); - shift = 26 - bhiBits; - if (shift !== 0) { - b = b.ushln(shift); - a.iushln(shift); - bhi = b.words[b.length - 1] | 0; - } - - // Initialize quotient - var m = a.length - b.length; - var q; - - if (mode !== 'mod') { - q = new BN(null); - q.length = m + 1; - q.words = new Array(q.length); - for (var i = 0; i < q.length; i++) { - q.words[i] = 0; - } - } - - var diff = a.clone()._ishlnsubmul(b, 1, m); - if (diff.negative === 0) { - a = diff; - if (q) { - q.words[m] = 1; - } - } - - for (var j = m - 1; j >= 0; j--) { - var qj = (a.words[b.length + j] | 0) * 0x4000000 + - (a.words[b.length + j - 1] | 0); - - // NOTE: (qj / bhi) is (0x3ffffff * 0x4000000 + 0x3ffffff) / 0x2000000 max - // (0x7ffffff) - qj = Math.min((qj / bhi) | 0, 0x3ffffff); - - a._ishlnsubmul(b, qj, j); - while (a.negative !== 0) { - qj--; - a.negative = 0; - a._ishlnsubmul(b, 1, j); - if (!a.isZero()) { - a.negative ^= 1; - } - } - if (q) { - q.words[j] = qj; - } - } - if (q) { - q.strip(); - } - a.strip(); - - // Denormalize - if (mode !== 'div' && shift !== 0) { - a.iushrn(shift); - } - - return { - div: q || null, - mod: a - }; - }; - - // NOTE: 1) `mode` can be set to `mod` to request mod only, - // to `div` to request div only, or be absent to - // request both div & mod - // 2) `positive` is true if unsigned mod is requested - BN.prototype.divmod = function divmod (num, mode, positive) { - assert(!num.isZero()); - - if (this.isZero()) { - return { - div: new BN(0), - mod: new BN(0) - }; - } - - var div, mod, res; - if (this.negative !== 0 && num.negative === 0) { - res = this.neg().divmod(num, mode); - - if (mode !== 'mod') { - div = res.div.neg(); - } - - if (mode !== 'div') { - mod = res.mod.neg(); - if (positive && mod.negative !== 0) { - mod.iadd(num); - } - } - - return { - div: div, - mod: mod - }; - } - - if (this.negative === 0 && num.negative !== 0) { - res = this.divmod(num.neg(), mode); - - if (mode !== 'mod') { - div = res.div.neg(); - } - - return { - div: div, - mod: res.mod - }; - } - - if ((this.negative & num.negative) !== 0) { - res = this.neg().divmod(num.neg(), mode); - - if (mode !== 'div') { - mod = res.mod.neg(); - if (positive && mod.negative !== 0) { - mod.isub(num); - } - } - - return { - div: res.div, - mod: mod - }; - } - - // Both numbers are positive at this point - - // Strip both numbers to approximate shift value - if (num.length > this.length || this.cmp(num) < 0) { - return { - div: new BN(0), - mod: this - }; - } - - // Very short reduction - if (num.length === 1) { - if (mode === 'div') { - return { - div: this.divn(num.words[0]), - mod: null - }; - } - - if (mode === 'mod') { - return { - div: null, - mod: new BN(this.modn(num.words[0])) - }; - } - - return { - div: this.divn(num.words[0]), - mod: new BN(this.modn(num.words[0])) - }; - } - - return this._wordDiv(num, mode); - }; - - // Find `this` / `num` - BN.prototype.div = function div (num) { - return this.divmod(num, 'div', false).div; - }; - - // Find `this` % `num` - BN.prototype.mod = function mod (num) { - return this.divmod(num, 'mod', false).mod; - }; - - BN.prototype.umod = function umod (num) { - return this.divmod(num, 'mod', true).mod; - }; - - // Find Round(`this` / `num`) - BN.prototype.divRound = function divRound (num) { - var dm = this.divmod(num); - - // Fast case - exact division - if (dm.mod.isZero()) return dm.div; - - var mod = dm.div.negative !== 0 ? dm.mod.isub(num) : dm.mod; - - var half = num.ushrn(1); - var r2 = num.andln(1); - var cmp = mod.cmp(half); - - // Round down - if (cmp < 0 || r2 === 1 && cmp === 0) return dm.div; - - // Round up - return dm.div.negative !== 0 ? dm.div.isubn(1) : dm.div.iaddn(1); - }; - - BN.prototype.modn = function modn (num) { - assert(num <= 0x3ffffff); - var p = (1 << 26) % num; - - var acc = 0; - for (var i = this.length - 1; i >= 0; i--) { - acc = (p * acc + (this.words[i] | 0)) % num; - } - - return acc; - }; - - // In-place division by number - BN.prototype.idivn = function idivn (num) { - assert(num <= 0x3ffffff); - - var carry = 0; - for (var i = this.length - 1; i >= 0; i--) { - var w = (this.words[i] | 0) + carry * 0x4000000; - this.words[i] = (w / num) | 0; - carry = w % num; - } - - return this.strip(); - }; - - BN.prototype.divn = function divn (num) { - return this.clone().idivn(num); - }; - - BN.prototype.egcd = function egcd (p) { - assert(p.negative === 0); - assert(!p.isZero()); - - var x = this; - var y = p.clone(); - - if (x.negative !== 0) { - x = x.umod(p); - } else { - x = x.clone(); - } - - // A * x + B * y = x - var A = new BN(1); - var B = new BN(0); - - // C * x + D * y = y - var C = new BN(0); - var D = new BN(1); - - var g = 0; - - while (x.isEven() && y.isEven()) { - x.iushrn(1); - y.iushrn(1); - ++g; - } - - var yp = y.clone(); - var xp = x.clone(); - - while (!x.isZero()) { - for (var i = 0, im = 1; (x.words[0] & im) === 0 && i < 26; ++i, im <<= 1); - if (i > 0) { - x.iushrn(i); - while (i-- > 0) { - if (A.isOdd() || B.isOdd()) { - A.iadd(yp); - B.isub(xp); - } - - A.iushrn(1); - B.iushrn(1); - } - } - - for (var j = 0, jm = 1; (y.words[0] & jm) === 0 && j < 26; ++j, jm <<= 1); - if (j > 0) { - y.iushrn(j); - while (j-- > 0) { - if (C.isOdd() || D.isOdd()) { - C.iadd(yp); - D.isub(xp); - } - - C.iushrn(1); - D.iushrn(1); - } - } - - if (x.cmp(y) >= 0) { - x.isub(y); - A.isub(C); - B.isub(D); - } else { - y.isub(x); - C.isub(A); - D.isub(B); - } - } - - return { - a: C, - b: D, - gcd: y.iushln(g) - }; - }; - - // This is reduced incarnation of the binary EEA - // above, designated to invert members of the - // _prime_ fields F(p) at a maximal speed - BN.prototype._invmp = function _invmp (p) { - assert(p.negative === 0); - assert(!p.isZero()); - - var a = this; - var b = p.clone(); - - if (a.negative !== 0) { - a = a.umod(p); - } else { - a = a.clone(); - } - - var x1 = new BN(1); - var x2 = new BN(0); - - var delta = b.clone(); - - while (a.cmpn(1) > 0 && b.cmpn(1) > 0) { - for (var i = 0, im = 1; (a.words[0] & im) === 0 && i < 26; ++i, im <<= 1); - if (i > 0) { - a.iushrn(i); - while (i-- > 0) { - if (x1.isOdd()) { - x1.iadd(delta); - } - - x1.iushrn(1); - } - } - - for (var j = 0, jm = 1; (b.words[0] & jm) === 0 && j < 26; ++j, jm <<= 1); - if (j > 0) { - b.iushrn(j); - while (j-- > 0) { - if (x2.isOdd()) { - x2.iadd(delta); - } - - x2.iushrn(1); - } - } - - if (a.cmp(b) >= 0) { - a.isub(b); - x1.isub(x2); - } else { - b.isub(a); - x2.isub(x1); - } - } - - var res; - if (a.cmpn(1) === 0) { - res = x1; - } else { - res = x2; - } - - if (res.cmpn(0) < 0) { - res.iadd(p); - } - - return res; - }; - - BN.prototype.gcd = function gcd (num) { - if (this.isZero()) return num.abs(); - if (num.isZero()) return this.abs(); - - var a = this.clone(); - var b = num.clone(); - a.negative = 0; - b.negative = 0; - - // Remove common factor of two - for (var shift = 0; a.isEven() && b.isEven(); shift++) { - a.iushrn(1); - b.iushrn(1); - } - - do { - while (a.isEven()) { - a.iushrn(1); - } - while (b.isEven()) { - b.iushrn(1); - } - - var r = a.cmp(b); - if (r < 0) { - // Swap `a` and `b` to make `a` always bigger than `b` - var t = a; - a = b; - b = t; - } else if (r === 0 || b.cmpn(1) === 0) { - break; - } - - a.isub(b); - } while (true); - - return b.iushln(shift); - }; - - // Invert number in the field F(num) - BN.prototype.invm = function invm (num) { - return this.egcd(num).a.umod(num); - }; - - BN.prototype.isEven = function isEven () { - return (this.words[0] & 1) === 0; - }; - - BN.prototype.isOdd = function isOdd () { - return (this.words[0] & 1) === 1; - }; - - // And first word and num - BN.prototype.andln = function andln (num) { - return this.words[0] & num; - }; - - // Increment at the bit position in-line - BN.prototype.bincn = function bincn (bit) { - assert(typeof bit === 'number'); - var r = bit % 26; - var s = (bit - r) / 26; - var q = 1 << r; - - // Fast case: bit is much higher than all existing words - if (this.length <= s) { - this._expand(s + 1); - this.words[s] |= q; - return this; - } - - // Add bit and propagate, if needed - var carry = q; - for (var i = s; carry !== 0 && i < this.length; i++) { - var w = this.words[i] | 0; - w += carry; - carry = w >>> 26; - w &= 0x3ffffff; - this.words[i] = w; - } - if (carry !== 0) { - this.words[i] = carry; - this.length++; - } - return this; - }; - - BN.prototype.isZero = function isZero () { - return this.length === 1 && this.words[0] === 0; - }; - - BN.prototype.cmpn = function cmpn (num) { - var negative = num < 0; - - if (this.negative !== 0 && !negative) return -1; - if (this.negative === 0 && negative) return 1; - - this.strip(); - - var res; - if (this.length > 1) { - res = 1; - } else { - if (negative) { - num = -num; - } - - assert(num <= 0x3ffffff, 'Number is too big'); - - var w = this.words[0] | 0; - res = w === num ? 0 : w < num ? -1 : 1; - } - if (this.negative !== 0) return -res | 0; - return res; - }; - - // Compare two numbers and return: - // 1 - if `this` > `num` - // 0 - if `this` == `num` - // -1 - if `this` < `num` - BN.prototype.cmp = function cmp (num) { - if (this.negative !== 0 && num.negative === 0) return -1; - if (this.negative === 0 && num.negative !== 0) return 1; - - var res = this.ucmp(num); - if (this.negative !== 0) return -res | 0; - return res; - }; - - // Unsigned comparison - BN.prototype.ucmp = function ucmp (num) { - // At this point both numbers have the same sign - if (this.length > num.length) return 1; - if (this.length < num.length) return -1; - - var res = 0; - for (var i = this.length - 1; i >= 0; i--) { - var a = this.words[i] | 0; - var b = num.words[i] | 0; - - if (a === b) continue; - if (a < b) { - res = -1; - } else if (a > b) { - res = 1; - } - break; - } - return res; - }; - - BN.prototype.gtn = function gtn (num) { - return this.cmpn(num) === 1; - }; - - BN.prototype.gt = function gt (num) { - return this.cmp(num) === 1; - }; - - BN.prototype.gten = function gten (num) { - return this.cmpn(num) >= 0; - }; - - BN.prototype.gte = function gte (num) { - return this.cmp(num) >= 0; - }; - - BN.prototype.ltn = function ltn (num) { - return this.cmpn(num) === -1; - }; - - BN.prototype.lt = function lt (num) { - return this.cmp(num) === -1; - }; - - BN.prototype.lten = function lten (num) { - return this.cmpn(num) <= 0; - }; - - BN.prototype.lte = function lte (num) { - return this.cmp(num) <= 0; - }; - - BN.prototype.eqn = function eqn (num) { - return this.cmpn(num) === 0; - }; - - BN.prototype.eq = function eq (num) { - return this.cmp(num) === 0; - }; - - // - // A reduce context, could be using montgomery or something better, depending - // on the `m` itself. - // - BN.red = function red (num) { - return new Red(num); - }; - - BN.prototype.toRed = function toRed (ctx) { - assert(!this.red, 'Already a number in reduction context'); - assert(this.negative === 0, 'red works only with positives'); - return ctx.convertTo(this)._forceRed(ctx); - }; - - BN.prototype.fromRed = function fromRed () { - assert(this.red, 'fromRed works only with numbers in reduction context'); - return this.red.convertFrom(this); - }; - - BN.prototype._forceRed = function _forceRed (ctx) { - this.red = ctx; - return this; - }; - - BN.prototype.forceRed = function forceRed (ctx) { - assert(!this.red, 'Already a number in reduction context'); - return this._forceRed(ctx); - }; - - BN.prototype.redAdd = function redAdd (num) { - assert(this.red, 'redAdd works only with red numbers'); - return this.red.add(this, num); - }; - - BN.prototype.redIAdd = function redIAdd (num) { - assert(this.red, 'redIAdd works only with red numbers'); - return this.red.iadd(this, num); - }; - - BN.prototype.redSub = function redSub (num) { - assert(this.red, 'redSub works only with red numbers'); - return this.red.sub(this, num); - }; - - BN.prototype.redISub = function redISub (num) { - assert(this.red, 'redISub works only with red numbers'); - return this.red.isub(this, num); - }; - - BN.prototype.redShl = function redShl (num) { - assert(this.red, 'redShl works only with red numbers'); - return this.red.shl(this, num); - }; - - BN.prototype.redMul = function redMul (num) { - assert(this.red, 'redMul works only with red numbers'); - this.red._verify2(this, num); - return this.red.mul(this, num); - }; - - BN.prototype.redIMul = function redIMul (num) { - assert(this.red, 'redMul works only with red numbers'); - this.red._verify2(this, num); - return this.red.imul(this, num); - }; - - BN.prototype.redSqr = function redSqr () { - assert(this.red, 'redSqr works only with red numbers'); - this.red._verify1(this); - return this.red.sqr(this); - }; - - BN.prototype.redISqr = function redISqr () { - assert(this.red, 'redISqr works only with red numbers'); - this.red._verify1(this); - return this.red.isqr(this); - }; - - // Square root over p - BN.prototype.redSqrt = function redSqrt () { - assert(this.red, 'redSqrt works only with red numbers'); - this.red._verify1(this); - return this.red.sqrt(this); - }; - - BN.prototype.redInvm = function redInvm () { - assert(this.red, 'redInvm works only with red numbers'); - this.red._verify1(this); - return this.red.invm(this); - }; - - // Return negative clone of `this` % `red modulo` - BN.prototype.redNeg = function redNeg () { - assert(this.red, 'redNeg works only with red numbers'); - this.red._verify1(this); - return this.red.neg(this); - }; - - BN.prototype.redPow = function redPow (num) { - assert(this.red && !num.red, 'redPow(normalNum)'); - this.red._verify1(this); - return this.red.pow(this, num); - }; - - // Prime numbers with efficient reduction - var primes = { - k256: null, - p224: null, - p192: null, - p25519: null - }; - - // Pseudo-Mersenne prime - function MPrime (name, p) { - // P = 2 ^ N - K - this.name = name; - this.p = new BN(p, 16); - this.n = this.p.bitLength(); - this.k = new BN(1).iushln(this.n).isub(this.p); - - this.tmp = this._tmp(); - } - - MPrime.prototype._tmp = function _tmp () { - var tmp = new BN(null); - tmp.words = new Array(Math.ceil(this.n / 13)); - return tmp; - }; - - MPrime.prototype.ireduce = function ireduce (num) { - // Assumes that `num` is less than `P^2` - // num = HI * (2 ^ N - K) + HI * K + LO = HI * K + LO (mod P) - var r = num; - var rlen; - - do { - this.split(r, this.tmp); - r = this.imulK(r); - r = r.iadd(this.tmp); - rlen = r.bitLength(); - } while (rlen > this.n); - - var cmp = rlen < this.n ? -1 : r.ucmp(this.p); - if (cmp === 0) { - r.words[0] = 0; - r.length = 1; - } else if (cmp > 0) { - r.isub(this.p); - } else { - r.strip(); - } - - return r; - }; - - MPrime.prototype.split = function split (input, out) { - input.iushrn(this.n, 0, out); - }; - - MPrime.prototype.imulK = function imulK (num) { - return num.imul(this.k); - }; - - function K256 () { - MPrime.call( - this, - 'k256', - 'ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff fffffffe fffffc2f'); - } - inherits(K256, MPrime); - - K256.prototype.split = function split (input, output) { - // 256 = 9 * 26 + 22 - var mask = 0x3fffff; - - var outLen = Math.min(input.length, 9); - for (var i = 0; i < outLen; i++) { - output.words[i] = input.words[i]; - } - output.length = outLen; - - if (input.length <= 9) { - input.words[0] = 0; - input.length = 1; - return; - } - - // Shift by 9 limbs - var prev = input.words[9]; - output.words[output.length++] = prev & mask; - - for (i = 10; i < input.length; i++) { - var next = input.words[i] | 0; - input.words[i - 10] = ((next & mask) << 4) | (prev >>> 22); - prev = next; - } - prev >>>= 22; - input.words[i - 10] = prev; - if (prev === 0 && input.length > 10) { - input.length -= 10; - } else { - input.length -= 9; - } - }; - - K256.prototype.imulK = function imulK (num) { - // K = 0x1000003d1 = [ 0x40, 0x3d1 ] - num.words[num.length] = 0; - num.words[num.length + 1] = 0; - num.length += 2; - - // bounded at: 0x40 * 0x3ffffff + 0x3d0 = 0x100000390 - var lo = 0; - for (var i = 0; i < num.length; i++) { - var w = num.words[i] | 0; - lo += w * 0x3d1; - num.words[i] = lo & 0x3ffffff; - lo = w * 0x40 + ((lo / 0x4000000) | 0); - } - - // Fast length reduction - if (num.words[num.length - 1] === 0) { - num.length--; - if (num.words[num.length - 1] === 0) { - num.length--; - } - } - return num; - }; - - function P224 () { - MPrime.call( - this, - 'p224', - 'ffffffff ffffffff ffffffff ffffffff 00000000 00000000 00000001'); - } - inherits(P224, MPrime); - - function P192 () { - MPrime.call( - this, - 'p192', - 'ffffffff ffffffff ffffffff fffffffe ffffffff ffffffff'); - } - inherits(P192, MPrime); - - function P25519 () { - // 2 ^ 255 - 19 - MPrime.call( - this, - '25519', - '7fffffffffffffff ffffffffffffffff ffffffffffffffff ffffffffffffffed'); - } - inherits(P25519, MPrime); - - P25519.prototype.imulK = function imulK (num) { - // K = 0x13 - var carry = 0; - for (var i = 0; i < num.length; i++) { - var hi = (num.words[i] | 0) * 0x13 + carry; - var lo = hi & 0x3ffffff; - hi >>>= 26; - - num.words[i] = lo; - carry = hi; - } - if (carry !== 0) { - num.words[num.length++] = carry; - } - return num; - }; - - // Exported mostly for testing purposes, use plain name instead - BN._prime = function prime (name) { - // Cached version of prime - if (primes[name]) return primes[name]; - - var prime; - if (name === 'k256') { - prime = new K256(); - } else if (name === 'p224') { - prime = new P224(); - } else if (name === 'p192') { - prime = new P192(); - } else if (name === 'p25519') { - prime = new P25519(); - } else { - throw new Error('Unknown prime ' + name); - } - primes[name] = prime; - - return prime; - }; - - // - // Base reduction engine - // - function Red (m) { - if (typeof m === 'string') { - var prime = BN._prime(m); - this.m = prime.p; - this.prime = prime; - } else { - assert(m.gtn(1), 'modulus must be greater than 1'); - this.m = m; - this.prime = null; - } - } - - Red.prototype._verify1 = function _verify1 (a) { - assert(a.negative === 0, 'red works only with positives'); - assert(a.red, 'red works only with red numbers'); - }; - - Red.prototype._verify2 = function _verify2 (a, b) { - assert((a.negative | b.negative) === 0, 'red works only with positives'); - assert(a.red && a.red === b.red, - 'red works only with red numbers'); - }; - - Red.prototype.imod = function imod (a) { - if (this.prime) return this.prime.ireduce(a)._forceRed(this); - return a.umod(this.m)._forceRed(this); - }; - - Red.prototype.neg = function neg (a) { - if (a.isZero()) { - return a.clone(); - } - - return this.m.sub(a)._forceRed(this); - }; - - Red.prototype.add = function add (a, b) { - this._verify2(a, b); - - var res = a.add(b); - if (res.cmp(this.m) >= 0) { - res.isub(this.m); - } - return res._forceRed(this); - }; - - Red.prototype.iadd = function iadd (a, b) { - this._verify2(a, b); - - var res = a.iadd(b); - if (res.cmp(this.m) >= 0) { - res.isub(this.m); - } - return res; - }; - - Red.prototype.sub = function sub (a, b) { - this._verify2(a, b); - - var res = a.sub(b); - if (res.cmpn(0) < 0) { - res.iadd(this.m); - } - return res._forceRed(this); - }; - - Red.prototype.isub = function isub (a, b) { - this._verify2(a, b); - - var res = a.isub(b); - if (res.cmpn(0) < 0) { - res.iadd(this.m); - } - return res; - }; - - Red.prototype.shl = function shl (a, num) { - this._verify1(a); - return this.imod(a.ushln(num)); - }; - - Red.prototype.imul = function imul (a, b) { - this._verify2(a, b); - return this.imod(a.imul(b)); - }; - - Red.prototype.mul = function mul (a, b) { - this._verify2(a, b); - return this.imod(a.mul(b)); - }; - - Red.prototype.isqr = function isqr (a) { - return this.imul(a, a.clone()); - }; - - Red.prototype.sqr = function sqr (a) { - return this.mul(a, a); - }; - - Red.prototype.sqrt = function sqrt (a) { - if (a.isZero()) return a.clone(); - - var mod3 = this.m.andln(3); - assert(mod3 % 2 === 1); - - // Fast case - if (mod3 === 3) { - var pow = this.m.add(new BN(1)).iushrn(2); - return this.pow(a, pow); - } - - // Tonelli-Shanks algorithm (Totally unoptimized and slow) - // - // Find Q and S, that Q * 2 ^ S = (P - 1) - var q = this.m.subn(1); - var s = 0; - while (!q.isZero() && q.andln(1) === 0) { - s++; - q.iushrn(1); - } - assert(!q.isZero()); - - var one = new BN(1).toRed(this); - var nOne = one.redNeg(); - - // Find quadratic non-residue - // NOTE: Max is such because of generalized Riemann hypothesis. - var lpow = this.m.subn(1).iushrn(1); - var z = this.m.bitLength(); - z = new BN(2 * z * z).toRed(this); - - while (this.pow(z, lpow).cmp(nOne) !== 0) { - z.redIAdd(nOne); - } - - var c = this.pow(z, q); - var r = this.pow(a, q.addn(1).iushrn(1)); - var t = this.pow(a, q); - var m = s; - while (t.cmp(one) !== 0) { - var tmp = t; - for (var i = 0; tmp.cmp(one) !== 0; i++) { - tmp = tmp.redSqr(); - } - assert(i < m); - var b = this.pow(c, new BN(1).iushln(m - i - 1)); - - r = r.redMul(b); - c = b.redSqr(); - t = t.redMul(c); - m = i; - } - - return r; - }; - - Red.prototype.invm = function invm (a) { - var inv = a._invmp(this.m); - if (inv.negative !== 0) { - inv.negative = 0; - return this.imod(inv).redNeg(); - } else { - return this.imod(inv); - } - }; - - Red.prototype.pow = function pow (a, num) { - if (num.isZero()) return new BN(1); - if (num.cmpn(1) === 0) return a.clone(); - - var windowSize = 4; - var wnd = new Array(1 << windowSize); - wnd[0] = new BN(1).toRed(this); - wnd[1] = a; - for (var i = 2; i < wnd.length; i++) { - wnd[i] = this.mul(wnd[i - 1], a); - } - - var res = wnd[0]; - var current = 0; - var currentLen = 0; - var start = num.bitLength() % 26; - if (start === 0) { - start = 26; - } - - for (i = num.length - 1; i >= 0; i--) { - var word = num.words[i]; - for (var j = start - 1; j >= 0; j--) { - var bit = (word >> j) & 1; - if (res !== wnd[0]) { - res = this.sqr(res); - } - - if (bit === 0 && current === 0) { - currentLen = 0; - continue; - } - - current <<= 1; - current |= bit; - currentLen++; - if (currentLen !== windowSize && (i !== 0 || j !== 0)) continue; - - res = this.mul(res, wnd[current]); - currentLen = 0; - current = 0; - } - start = 26; - } - - return res; - }; - - Red.prototype.convertTo = function convertTo (num) { - var r = num.umod(this.m); - - return r === num ? r.clone() : r; - }; - - Red.prototype.convertFrom = function convertFrom (num) { - var res = num.clone(); - res.red = null; - return res; - }; - - // - // Montgomery method engine - // - - BN.mont = function mont (num) { - return new Mont(num); - }; - - function Mont (m) { - Red.call(this, m); - - this.shift = this.m.bitLength(); - if (this.shift % 26 !== 0) { - this.shift += 26 - (this.shift % 26); - } - - this.r = new BN(1).iushln(this.shift); - this.r2 = this.imod(this.r.sqr()); - this.rinv = this.r._invmp(this.m); - - this.minv = this.rinv.mul(this.r).isubn(1).div(this.m); - this.minv = this.minv.umod(this.r); - this.minv = this.r.sub(this.minv); - } - inherits(Mont, Red); - - Mont.prototype.convertTo = function convertTo (num) { - return this.imod(num.ushln(this.shift)); - }; - - Mont.prototype.convertFrom = function convertFrom (num) { - var r = this.imod(num.mul(this.rinv)); - r.red = null; - return r; - }; - - Mont.prototype.imul = function imul (a, b) { - if (a.isZero() || b.isZero()) { - a.words[0] = 0; - a.length = 1; - return a; - } - - var t = a.imul(b); - var c = t.maskn(this.shift).mul(this.minv).imaskn(this.shift).mul(this.m); - var u = t.isub(c).iushrn(this.shift); - var res = u; - - if (u.cmp(this.m) >= 0) { - res = u.isub(this.m); - } else if (u.cmpn(0) < 0) { - res = u.iadd(this.m); - } - - return res._forceRed(this); - }; - - Mont.prototype.mul = function mul (a, b) { - if (a.isZero() || b.isZero()) return new BN(0)._forceRed(this); - - var t = a.mul(b); - var c = t.maskn(this.shift).mul(this.minv).imaskn(this.shift).mul(this.m); - var u = t.isub(c).iushrn(this.shift); - var res = u; - if (u.cmp(this.m) >= 0) { - res = u.isub(this.m); - } else if (u.cmpn(0) < 0) { - res = u.iadd(this.m); - } - - return res._forceRed(this); - }; - - Mont.prototype.invm = function invm (a) { - // (AR)^-1 * R^2 = (A^-1 * R^-1) * R^2 = A^-1 * R - var res = this.imod(a._invmp(this.m).mul(this.r2)); - return res._forceRed(this); - }; -})(typeof module === 'undefined' || module, this); - -},{}],19:[function(require,module,exports){ -var r; - -module.exports = function rand(len) { - if (!r) - r = new Rand(null); - - return r.generate(len); -}; - -function Rand(rand) { - this.rand = rand; -} -module.exports.Rand = Rand; - -Rand.prototype.generate = function generate(len) { - return this._rand(len); -}; - -if (typeof self === 'object') { - if (self.crypto && self.crypto.getRandomValues) { - // Modern browsers - Rand.prototype._rand = function _rand(n) { - var arr = new Uint8Array(n); - self.crypto.getRandomValues(arr); - return arr; - }; - } else if (self.msCrypto && self.msCrypto.getRandomValues) { - // IE - Rand.prototype._rand = function _rand(n) { - var arr = new Uint8Array(n); - self.msCrypto.getRandomValues(arr); - return arr; - }; - } else { - // Old junk - Rand.prototype._rand = function() { - throw new Error('Not implemented yet'); - }; - } -} else { - // Node.js or Web worker with no crypto support - try { - var crypto = require(20); - - Rand.prototype._rand = function _rand(n) { - return crypto.randomBytes(n); - }; - } catch (e) { - // Emulate crypto API using randy - Rand.prototype._rand = function _rand(n) { - var res = new Uint8Array(n); - for (var i = 0; i < res.length; i++) - res[i] = this.rand.getByte(); - return res; - }; - } -} - -},{"20":20}],20:[function(require,module,exports){ - -},{}],21:[function(require,module,exports){ -(function (Buffer){ -// based on the aes implimentation in triple sec -// https://github.com/keybase/triplesec - -// which is in turn based on the one from crypto-js -// https://code.google.com/p/crypto-js/ - -var uint_max = Math.pow(2, 32) -function fixup_uint32 (x) { - var ret, x_pos - ret = x > uint_max || x < 0 ? (x_pos = Math.abs(x) % uint_max, x < 0 ? uint_max - x_pos : x_pos) : x - return ret -} -function scrub_vec (v) { - for (var i = 0; i < v.length; v++) { - v[i] = 0 - } - return false -} - -function Global () { - this.SBOX = [] - this.INV_SBOX = [] - this.SUB_MIX = [[], [], [], []] - this.INV_SUB_MIX = [[], [], [], []] - this.init() - this.RCON = [0x00, 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80, 0x1b, 0x36] -} - -Global.prototype.init = function () { - var d, i, sx, t, x, x2, x4, x8, xi, _i - d = (function () { - var _i, _results - _results = [] - for (i = _i = 0; _i < 256; i = ++_i) { - if (i < 128) { - _results.push(i << 1) - } else { - _results.push((i << 1) ^ 0x11b) - } - } - return _results - })() - x = 0 - xi = 0 - for (i = _i = 0; _i < 256; i = ++_i) { - sx = xi ^ (xi << 1) ^ (xi << 2) ^ (xi << 3) ^ (xi << 4) - sx = (sx >>> 8) ^ (sx & 0xff) ^ 0x63 - this.SBOX[x] = sx - this.INV_SBOX[sx] = x - x2 = d[x] - x4 = d[x2] - x8 = d[x4] - t = (d[sx] * 0x101) ^ (sx * 0x1010100) - this.SUB_MIX[0][x] = (t << 24) | (t >>> 8) - this.SUB_MIX[1][x] = (t << 16) | (t >>> 16) - this.SUB_MIX[2][x] = (t << 8) | (t >>> 24) - this.SUB_MIX[3][x] = t - t = (x8 * 0x1010101) ^ (x4 * 0x10001) ^ (x2 * 0x101) ^ (x * 0x1010100) - this.INV_SUB_MIX[0][sx] = (t << 24) | (t >>> 8) - this.INV_SUB_MIX[1][sx] = (t << 16) | (t >>> 16) - this.INV_SUB_MIX[2][sx] = (t << 8) | (t >>> 24) - this.INV_SUB_MIX[3][sx] = t - if (x === 0) { - x = xi = 1 - } else { - x = x2 ^ d[d[d[x8 ^ x2]]] - xi ^= d[d[xi]] - } - } - return true -} - -var G = new Global() - -AES.blockSize = 4 * 4 - -AES.prototype.blockSize = AES.blockSize - -AES.keySize = 256 / 8 - -AES.prototype.keySize = AES.keySize - -function bufferToArray (buf) { - var len = buf.length / 4 - var out = new Array(len) - var i = -1 - while (++i < len) { - out[i] = buf.readUInt32BE(i * 4) - } - return out -} -function AES (key) { - this._key = bufferToArray(key) - this._doReset() -} - -AES.prototype._doReset = function () { - var invKsRow, keySize, keyWords, ksRow, ksRows, t - keyWords = this._key - keySize = keyWords.length - this._nRounds = keySize + 6 - ksRows = (this._nRounds + 1) * 4 - this._keySchedule = [] - for (ksRow = 0; ksRow < ksRows; ksRow++) { - this._keySchedule[ksRow] = ksRow < keySize ? keyWords[ksRow] : (t = this._keySchedule[ksRow - 1], (ksRow % keySize) === 0 ? (t = (t << 8) | (t >>> 24), t = (G.SBOX[t >>> 24] << 24) | (G.SBOX[(t >>> 16) & 0xff] << 16) | (G.SBOX[(t >>> 8) & 0xff] << 8) | G.SBOX[t & 0xff], t ^= G.RCON[(ksRow / keySize) | 0] << 24) : keySize > 6 && ksRow % keySize === 4 ? t = (G.SBOX[t >>> 24] << 24) | (G.SBOX[(t >>> 16) & 0xff] << 16) | (G.SBOX[(t >>> 8) & 0xff] << 8) | G.SBOX[t & 0xff] : void 0, this._keySchedule[ksRow - keySize] ^ t) - } - this._invKeySchedule = [] - for (invKsRow = 0; invKsRow < ksRows; invKsRow++) { - ksRow = ksRows - invKsRow - t = this._keySchedule[ksRow - (invKsRow % 4 ? 0 : 4)] - this._invKeySchedule[invKsRow] = invKsRow < 4 || ksRow <= 4 ? t : G.INV_SUB_MIX[0][G.SBOX[t >>> 24]] ^ G.INV_SUB_MIX[1][G.SBOX[(t >>> 16) & 0xff]] ^ G.INV_SUB_MIX[2][G.SBOX[(t >>> 8) & 0xff]] ^ G.INV_SUB_MIX[3][G.SBOX[t & 0xff]] - } - return true -} - -AES.prototype.encryptBlock = function (M) { - M = bufferToArray(new Buffer(M)) - var out = this._doCryptBlock(M, this._keySchedule, G.SUB_MIX, G.SBOX) - var buf = new Buffer(16) - buf.writeUInt32BE(out[0], 0) - buf.writeUInt32BE(out[1], 4) - buf.writeUInt32BE(out[2], 8) - buf.writeUInt32BE(out[3], 12) - return buf -} - -AES.prototype.decryptBlock = function (M) { - M = bufferToArray(new Buffer(M)) - var temp = [M[3], M[1]] - M[1] = temp[0] - M[3] = temp[1] - var out = this._doCryptBlock(M, this._invKeySchedule, G.INV_SUB_MIX, G.INV_SBOX) - var buf = new Buffer(16) - buf.writeUInt32BE(out[0], 0) - buf.writeUInt32BE(out[3], 4) - buf.writeUInt32BE(out[2], 8) - buf.writeUInt32BE(out[1], 12) - return buf -} - -AES.prototype.scrub = function () { - scrub_vec(this._keySchedule) - scrub_vec(this._invKeySchedule) - scrub_vec(this._key) -} - -AES.prototype._doCryptBlock = function (M, keySchedule, SUB_MIX, SBOX) { - var ksRow, s0, s1, s2, s3, t0, t1, t2, t3 - - s0 = M[0] ^ keySchedule[0] - s1 = M[1] ^ keySchedule[1] - s2 = M[2] ^ keySchedule[2] - s3 = M[3] ^ keySchedule[3] - ksRow = 4 - for (var round = 1; round < this._nRounds; round++) { - t0 = SUB_MIX[0][s0 >>> 24] ^ SUB_MIX[1][(s1 >>> 16) & 0xff] ^ SUB_MIX[2][(s2 >>> 8) & 0xff] ^ SUB_MIX[3][s3 & 0xff] ^ keySchedule[ksRow++] - t1 = SUB_MIX[0][s1 >>> 24] ^ SUB_MIX[1][(s2 >>> 16) & 0xff] ^ SUB_MIX[2][(s3 >>> 8) & 0xff] ^ SUB_MIX[3][s0 & 0xff] ^ keySchedule[ksRow++] - t2 = SUB_MIX[0][s2 >>> 24] ^ SUB_MIX[1][(s3 >>> 16) & 0xff] ^ SUB_MIX[2][(s0 >>> 8) & 0xff] ^ SUB_MIX[3][s1 & 0xff] ^ keySchedule[ksRow++] - t3 = SUB_MIX[0][s3 >>> 24] ^ SUB_MIX[1][(s0 >>> 16) & 0xff] ^ SUB_MIX[2][(s1 >>> 8) & 0xff] ^ SUB_MIX[3][s2 & 0xff] ^ keySchedule[ksRow++] - s0 = t0 - s1 = t1 - s2 = t2 - s3 = t3 - } - t0 = ((SBOX[s0 >>> 24] << 24) | (SBOX[(s1 >>> 16) & 0xff] << 16) | (SBOX[(s2 >>> 8) & 0xff] << 8) | SBOX[s3 & 0xff]) ^ keySchedule[ksRow++] - t1 = ((SBOX[s1 >>> 24] << 24) | (SBOX[(s2 >>> 16) & 0xff] << 16) | (SBOX[(s3 >>> 8) & 0xff] << 8) | SBOX[s0 & 0xff]) ^ keySchedule[ksRow++] - t2 = ((SBOX[s2 >>> 24] << 24) | (SBOX[(s3 >>> 16) & 0xff] << 16) | (SBOX[(s0 >>> 8) & 0xff] << 8) | SBOX[s1 & 0xff]) ^ keySchedule[ksRow++] - t3 = ((SBOX[s3 >>> 24] << 24) | (SBOX[(s0 >>> 16) & 0xff] << 16) | (SBOX[(s1 >>> 8) & 0xff] << 8) | SBOX[s2 & 0xff]) ^ keySchedule[ksRow++] - return [ - fixup_uint32(t0), - fixup_uint32(t1), - fixup_uint32(t2), - fixup_uint32(t3) - ] -} - -exports.AES = AES - -}).call(this,require(47).Buffer) -},{"47":47}],22:[function(require,module,exports){ -(function (Buffer){ -var aes = require(21) -var Transform = require(49) -var inherits = require(97) -var GHASH = require(26) -var xor = require(46) -inherits(StreamCipher, Transform) -module.exports = StreamCipher - -function StreamCipher (mode, key, iv, decrypt) { - if (!(this instanceof StreamCipher)) { - return new StreamCipher(mode, key, iv) - } - Transform.call(this) - this._finID = Buffer.concat([iv, new Buffer([0, 0, 0, 1])]) - iv = Buffer.concat([iv, new Buffer([0, 0, 0, 2])]) - this._cipher = new aes.AES(key) - this._prev = new Buffer(iv.length) - this._cache = new Buffer('') - this._secCache = new Buffer('') - this._decrypt = decrypt - this._alen = 0 - this._len = 0 - iv.copy(this._prev) - this._mode = mode - var h = new Buffer(4) - h.fill(0) - this._ghash = new GHASH(this._cipher.encryptBlock(h)) - this._authTag = null - this._called = false -} -StreamCipher.prototype._update = function (chunk) { - if (!this._called && this._alen) { - var rump = 16 - (this._alen % 16) - if (rump < 16) { - rump = new Buffer(rump) - rump.fill(0) - this._ghash.update(rump) - } - } - this._called = true - var out = this._mode.encrypt(this, chunk) - if (this._decrypt) { - this._ghash.update(chunk) - } else { - this._ghash.update(out) - } - this._len += chunk.length - return out -} -StreamCipher.prototype._final = function () { - if (this._decrypt && !this._authTag) { - throw new Error('Unsupported state or unable to authenticate data') - } - var tag = xor(this._ghash.final(this._alen * 8, this._len * 8), this._cipher.encryptBlock(this._finID)) - if (this._decrypt) { - if (xorTest(tag, this._authTag)) { - throw new Error('Unsupported state or unable to authenticate data') - } - } else { - this._authTag = tag - } - this._cipher.scrub() -} -StreamCipher.prototype.getAuthTag = function getAuthTag () { - if (!this._decrypt && Buffer.isBuffer(this._authTag)) { - return this._authTag - } else { - throw new Error('Attempting to get auth tag in unsupported state') - } -} -StreamCipher.prototype.setAuthTag = function setAuthTag (tag) { - if (this._decrypt) { - this._authTag = tag - } else { - throw new Error('Attempting to set auth tag in unsupported state') - } -} -StreamCipher.prototype.setAAD = function setAAD (buf) { - if (!this._called) { - this._ghash.update(buf) - this._alen += buf.length - } else { - throw new Error('Attempting to set AAD in unsupported state') - } -} -function xorTest (a, b) { - var out = 0 - if (a.length !== b.length) { - out++ - } - var len = Math.min(a.length, b.length) - var i = -1 - while (++i < len) { - out += (a[i] ^ b[i]) - } - return out -} - -}).call(this,require(47).Buffer) -},{"21":21,"26":26,"46":46,"47":47,"49":49,"97":97}],23:[function(require,module,exports){ -var ciphers = require(25) -exports.createCipher = exports.Cipher = ciphers.createCipher -exports.createCipheriv = exports.Cipheriv = ciphers.createCipheriv -var deciphers = require(24) -exports.createDecipher = exports.Decipher = deciphers.createDecipher -exports.createDecipheriv = exports.Decipheriv = deciphers.createDecipheriv -var modes = require(27) -function getCiphers () { - return Object.keys(modes) -} -exports.listCiphers = exports.getCiphers = getCiphers - -},{"24":24,"25":25,"27":27}],24:[function(require,module,exports){ -(function (Buffer){ -var aes = require(21) -var Transform = require(49) -var inherits = require(97) -var modes = require(27) -var StreamCipher = require(35) -var AuthCipher = require(22) -var ebtk = require(87) - -inherits(Decipher, Transform) -function Decipher (mode, key, iv) { - if (!(this instanceof Decipher)) { - return new Decipher(mode, key, iv) - } - Transform.call(this) - this._cache = new Splitter() - this._last = void 0 - this._cipher = new aes.AES(key) - this._prev = new Buffer(iv.length) - iv.copy(this._prev) - this._mode = mode - this._autopadding = true -} -Decipher.prototype._update = function (data) { - this._cache.add(data) - var chunk - var thing - var out = [] - while ((chunk = this._cache.get(this._autopadding))) { - thing = this._mode.decrypt(this, chunk) - out.push(thing) - } - return Buffer.concat(out) -} -Decipher.prototype._final = function () { - var chunk = this._cache.flush() - if (this._autopadding) { - return unpad(this._mode.decrypt(this, chunk)) - } else if (chunk) { - throw new Error('data not multiple of block length') - } -} -Decipher.prototype.setAutoPadding = function (setTo) { - this._autopadding = !!setTo - return this -} -function Splitter () { - if (!(this instanceof Splitter)) { - return new Splitter() - } - this.cache = new Buffer('') -} -Splitter.prototype.add = function (data) { - this.cache = Buffer.concat([this.cache, data]) -} - -Splitter.prototype.get = function (autoPadding) { - var out - if (autoPadding) { - if (this.cache.length > 16) { - out = this.cache.slice(0, 16) - this.cache = this.cache.slice(16) - return out - } - } else { - if (this.cache.length >= 16) { - out = this.cache.slice(0, 16) - this.cache = this.cache.slice(16) - return out - } - } - return null -} -Splitter.prototype.flush = function () { - if (this.cache.length) { - return this.cache - } -} -function unpad (last) { - var padded = last[15] - var i = -1 - while (++i < padded) { - if (last[(i + (16 - padded))] !== padded) { - throw new Error('unable to decrypt data') - } - } - if (padded === 16) { - return - } - return last.slice(0, 16 - padded) -} - -var modelist = { - ECB: require(33), - CBC: require(28), - CFB: require(29), - CFB8: require(31), - CFB1: require(30), - OFB: require(34), - CTR: require(32), - GCM: require(32) -} - -function createDecipheriv (suite, password, iv) { - var config = modes[suite.toLowerCase()] - if (!config) { - throw new TypeError('invalid suite type') - } - if (typeof iv === 'string') { - iv = new Buffer(iv) - } - if (typeof password === 'string') { - password = new Buffer(password) - } - if (password.length !== config.key / 8) { - throw new TypeError('invalid key length ' + password.length) - } - if (iv.length !== config.iv) { - throw new TypeError('invalid iv length ' + iv.length) - } - if (config.type === 'stream') { - return new StreamCipher(modelist[config.mode], password, iv, true) - } else if (config.type === 'auth') { - return new AuthCipher(modelist[config.mode], password, iv, true) - } - return new Decipher(modelist[config.mode], password, iv) -} - -function createDecipher (suite, password) { - var config = modes[suite.toLowerCase()] - if (!config) { - throw new TypeError('invalid suite type') - } - var keys = ebtk(password, false, config.key, config.iv) - return createDecipheriv(suite, keys.key, keys.iv) -} -exports.createDecipher = createDecipher -exports.createDecipheriv = createDecipheriv - -}).call(this,require(47).Buffer) -},{"21":21,"22":22,"27":27,"28":28,"29":29,"30":30,"31":31,"32":32,"33":33,"34":34,"35":35,"47":47,"49":49,"87":87,"97":97}],25:[function(require,module,exports){ -(function (Buffer){ -var aes = require(21) -var Transform = require(49) -var inherits = require(97) -var modes = require(27) -var ebtk = require(87) -var StreamCipher = require(35) -var AuthCipher = require(22) -inherits(Cipher, Transform) -function Cipher (mode, key, iv) { - if (!(this instanceof Cipher)) { - return new Cipher(mode, key, iv) - } - Transform.call(this) - this._cache = new Splitter() - this._cipher = new aes.AES(key) - this._prev = new Buffer(iv.length) - iv.copy(this._prev) - this._mode = mode - this._autopadding = true -} -Cipher.prototype._update = function (data) { - this._cache.add(data) - var chunk - var thing - var out = [] - while ((chunk = this._cache.get())) { - thing = this._mode.encrypt(this, chunk) - out.push(thing) - } - return Buffer.concat(out) -} -Cipher.prototype._final = function () { - var chunk = this._cache.flush() - if (this._autopadding) { - chunk = this._mode.encrypt(this, chunk) - this._cipher.scrub() - return chunk - } else if (chunk.toString('hex') !== '10101010101010101010101010101010') { - this._cipher.scrub() - throw new Error('data not multiple of block length') - } -} -Cipher.prototype.setAutoPadding = function (setTo) { - this._autopadding = !!setTo - return this -} - -function Splitter () { - if (!(this instanceof Splitter)) { - return new Splitter() - } - this.cache = new Buffer('') -} -Splitter.prototype.add = function (data) { - this.cache = Buffer.concat([this.cache, data]) -} - -Splitter.prototype.get = function () { - if (this.cache.length > 15) { - var out = this.cache.slice(0, 16) - this.cache = this.cache.slice(16) - return out - } - return null -} -Splitter.prototype.flush = function () { - var len = 16 - this.cache.length - var padBuff = new Buffer(len) - - var i = -1 - while (++i < len) { - padBuff.writeUInt8(len, i) - } - var out = Buffer.concat([this.cache, padBuff]) - return out -} -var modelist = { - ECB: require(33), - CBC: require(28), - CFB: require(29), - CFB8: require(31), - CFB1: require(30), - OFB: require(34), - CTR: require(32), - GCM: require(32) -} - -function createCipheriv (suite, password, iv) { - var config = modes[suite.toLowerCase()] - if (!config) { - throw new TypeError('invalid suite type') - } - if (typeof iv === 'string') { - iv = new Buffer(iv) - } - if (typeof password === 'string') { - password = new Buffer(password) - } - if (password.length !== config.key / 8) { - throw new TypeError('invalid key length ' + password.length) - } - if (iv.length !== config.iv) { - throw new TypeError('invalid iv length ' + iv.length) - } - if (config.type === 'stream') { - return new StreamCipher(modelist[config.mode], password, iv) - } else if (config.type === 'auth') { - return new AuthCipher(modelist[config.mode], password, iv) - } - return new Cipher(modelist[config.mode], password, iv) -} -function createCipher (suite, password) { - var config = modes[suite.toLowerCase()] - if (!config) { - throw new TypeError('invalid suite type') - } - var keys = ebtk(password, false, config.key, config.iv) - return createCipheriv(suite, keys.key, keys.iv) -} - -exports.createCipheriv = createCipheriv -exports.createCipher = createCipher - -}).call(this,require(47).Buffer) -},{"21":21,"22":22,"27":27,"28":28,"29":29,"30":30,"31":31,"32":32,"33":33,"34":34,"35":35,"47":47,"49":49,"87":87,"97":97}],26:[function(require,module,exports){ -(function (Buffer){ -var zeros = new Buffer(16) -zeros.fill(0) -module.exports = GHASH -function GHASH (key) { - this.h = key - this.state = new Buffer(16) - this.state.fill(0) - this.cache = new Buffer('') -} -// from http://bitwiseshiftleft.github.io/sjcl/doc/symbols/src/core_gcm.js.html -// by Juho Vähä-Herttua -GHASH.prototype.ghash = function (block) { - var i = -1 - while (++i < block.length) { - this.state[i] ^= block[i] - } - this._multiply() -} - -GHASH.prototype._multiply = function () { - var Vi = toArray(this.h) - var Zi = [0, 0, 0, 0] - var j, xi, lsb_Vi - var i = -1 - while (++i < 128) { - xi = (this.state[~~(i / 8)] & (1 << (7 - i % 8))) !== 0 - if (xi) { - // Z_i+1 = Z_i ^ V_i - Zi = xor(Zi, Vi) - } - - // Store the value of LSB(V_i) - lsb_Vi = (Vi[3] & 1) !== 0 - - // V_i+1 = V_i >> 1 - for (j = 3; j > 0; j--) { - Vi[j] = (Vi[j] >>> 1) | ((Vi[j - 1] & 1) << 31) - } - Vi[0] = Vi[0] >>> 1 - - // If LSB(V_i) is 1, V_i+1 = (V_i >> 1) ^ R - if (lsb_Vi) { - Vi[0] = Vi[0] ^ (0xe1 << 24) - } - } - this.state = fromArray(Zi) -} -GHASH.prototype.update = function (buf) { - this.cache = Buffer.concat([this.cache, buf]) - var chunk - while (this.cache.length >= 16) { - chunk = this.cache.slice(0, 16) - this.cache = this.cache.slice(16) - this.ghash(chunk) - } -} -GHASH.prototype.final = function (abl, bl) { - if (this.cache.length) { - this.ghash(Buffer.concat([this.cache, zeros], 16)) - } - this.ghash(fromArray([ - 0, abl, - 0, bl - ])) - return this.state -} - -function toArray (buf) { - return [ - buf.readUInt32BE(0), - buf.readUInt32BE(4), - buf.readUInt32BE(8), - buf.readUInt32BE(12) - ] -} -function fromArray (out) { - out = out.map(fixup_uint32) - var buf = new Buffer(16) - buf.writeUInt32BE(out[0], 0) - buf.writeUInt32BE(out[1], 4) - buf.writeUInt32BE(out[2], 8) - buf.writeUInt32BE(out[3], 12) - return buf -} -var uint_max = Math.pow(2, 32) -function fixup_uint32 (x) { - var ret, x_pos - ret = x > uint_max || x < 0 ? (x_pos = Math.abs(x) % uint_max, x < 0 ? uint_max - x_pos : x_pos) : x - return ret -} -function xor (a, b) { - return [ - a[0] ^ b[0], - a[1] ^ b[1], - a[2] ^ b[2], - a[3] ^ b[3] - ] -} - -}).call(this,require(47).Buffer) -},{"47":47}],27:[function(require,module,exports){ -exports['aes-128-ecb'] = { - cipher: 'AES', - key: 128, - iv: 0, - mode: 'ECB', - type: 'block' -} -exports['aes-192-ecb'] = { - cipher: 'AES', - key: 192, - iv: 0, - mode: 'ECB', - type: 'block' -} -exports['aes-256-ecb'] = { - cipher: 'AES', - key: 256, - iv: 0, - mode: 'ECB', - type: 'block' -} -exports['aes-128-cbc'] = { - cipher: 'AES', - key: 128, - iv: 16, - mode: 'CBC', - type: 'block' -} -exports['aes-192-cbc'] = { - cipher: 'AES', - key: 192, - iv: 16, - mode: 'CBC', - type: 'block' -} -exports['aes-256-cbc'] = { - cipher: 'AES', - key: 256, - iv: 16, - mode: 'CBC', - type: 'block' -} -exports['aes128'] = exports['aes-128-cbc'] -exports['aes192'] = exports['aes-192-cbc'] -exports['aes256'] = exports['aes-256-cbc'] -exports['aes-128-cfb'] = { - cipher: 'AES', - key: 128, - iv: 16, - mode: 'CFB', - type: 'stream' -} -exports['aes-192-cfb'] = { - cipher: 'AES', - key: 192, - iv: 16, - mode: 'CFB', - type: 'stream' -} -exports['aes-256-cfb'] = { - cipher: 'AES', - key: 256, - iv: 16, - mode: 'CFB', - type: 'stream' -} -exports['aes-128-cfb8'] = { - cipher: 'AES', - key: 128, - iv: 16, - mode: 'CFB8', - type: 'stream' -} -exports['aes-192-cfb8'] = { - cipher: 'AES', - key: 192, - iv: 16, - mode: 'CFB8', - type: 'stream' -} -exports['aes-256-cfb8'] = { - cipher: 'AES', - key: 256, - iv: 16, - mode: 'CFB8', - type: 'stream' -} -exports['aes-128-cfb1'] = { - cipher: 'AES', - key: 128, - iv: 16, - mode: 'CFB1', - type: 'stream' -} -exports['aes-192-cfb1'] = { - cipher: 'AES', - key: 192, - iv: 16, - mode: 'CFB1', - type: 'stream' -} -exports['aes-256-cfb1'] = { - cipher: 'AES', - key: 256, - iv: 16, - mode: 'CFB1', - type: 'stream' -} -exports['aes-128-ofb'] = { - cipher: 'AES', - key: 128, - iv: 16, - mode: 'OFB', - type: 'stream' -} -exports['aes-192-ofb'] = { - cipher: 'AES', - key: 192, - iv: 16, - mode: 'OFB', - type: 'stream' -} -exports['aes-256-ofb'] = { - cipher: 'AES', - key: 256, - iv: 16, - mode: 'OFB', - type: 'stream' -} -exports['aes-128-ctr'] = { - cipher: 'AES', - key: 128, - iv: 16, - mode: 'CTR', - type: 'stream' -} -exports['aes-192-ctr'] = { - cipher: 'AES', - key: 192, - iv: 16, - mode: 'CTR', - type: 'stream' -} -exports['aes-256-ctr'] = { - cipher: 'AES', - key: 256, - iv: 16, - mode: 'CTR', - type: 'stream' -} -exports['aes-128-gcm'] = { - cipher: 'AES', - key: 128, - iv: 12, - mode: 'GCM', - type: 'auth' -} -exports['aes-192-gcm'] = { - cipher: 'AES', - key: 192, - iv: 12, - mode: 'GCM', - type: 'auth' -} -exports['aes-256-gcm'] = { - cipher: 'AES', - key: 256, - iv: 12, - mode: 'GCM', - type: 'auth' -} - -},{}],28:[function(require,module,exports){ -var xor = require(46) - -exports.encrypt = function (self, block) { - var data = xor(block, self._prev) - - self._prev = self._cipher.encryptBlock(data) - return self._prev -} - -exports.decrypt = function (self, block) { - var pad = self._prev - - self._prev = block - var out = self._cipher.decryptBlock(block) - - return xor(out, pad) -} - -},{"46":46}],29:[function(require,module,exports){ -(function (Buffer){ -var xor = require(46) - -exports.encrypt = function (self, data, decrypt) { - var out = new Buffer('') - var len - - while (data.length) { - if (self._cache.length === 0) { - self._cache = self._cipher.encryptBlock(self._prev) - self._prev = new Buffer('') - } - - if (self._cache.length <= data.length) { - len = self._cache.length - out = Buffer.concat([out, encryptStart(self, data.slice(0, len), decrypt)]) - data = data.slice(len) - } else { - out = Buffer.concat([out, encryptStart(self, data, decrypt)]) - break - } - } - - return out -} -function encryptStart (self, data, decrypt) { - var len = data.length - var out = xor(data, self._cache) - self._cache = self._cache.slice(len) - self._prev = Buffer.concat([self._prev, decrypt ? data : out]) - return out -} - -}).call(this,require(47).Buffer) -},{"46":46,"47":47}],30:[function(require,module,exports){ -(function (Buffer){ -function encryptByte (self, byteParam, decrypt) { - var pad - var i = -1 - var len = 8 - var out = 0 - var bit, value - while (++i < len) { - pad = self._cipher.encryptBlock(self._prev) - bit = (byteParam & (1 << (7 - i))) ? 0x80 : 0 - value = pad[0] ^ bit - out += ((value & 0x80) >> (i % 8)) - self._prev = shiftIn(self._prev, decrypt ? bit : value) - } - return out -} -exports.encrypt = function (self, chunk, decrypt) { - var len = chunk.length - var out = new Buffer(len) - var i = -1 - while (++i < len) { - out[i] = encryptByte(self, chunk[i], decrypt) - } - return out -} -function shiftIn (buffer, value) { - var len = buffer.length - var i = -1 - var out = new Buffer(buffer.length) - buffer = Buffer.concat([buffer, new Buffer([value])]) - while (++i < len) { - out[i] = buffer[i] << 1 | buffer[i + 1] >> (7) - } - return out -} - -}).call(this,require(47).Buffer) -},{"47":47}],31:[function(require,module,exports){ -(function (Buffer){ -function encryptByte (self, byteParam, decrypt) { - var pad = self._cipher.encryptBlock(self._prev) - var out = pad[0] ^ byteParam - self._prev = Buffer.concat([self._prev.slice(1), new Buffer([decrypt ? byteParam : out])]) - return out -} -exports.encrypt = function (self, chunk, decrypt) { - var len = chunk.length - var out = new Buffer(len) - var i = -1 - while (++i < len) { - out[i] = encryptByte(self, chunk[i], decrypt) - } - return out -} - -}).call(this,require(47).Buffer) -},{"47":47}],32:[function(require,module,exports){ -(function (Buffer){ -var xor = require(46) - -function incr32 (iv) { - var len = iv.length - var item - while (len--) { - item = iv.readUInt8(len) - if (item === 255) { - iv.writeUInt8(0, len) - } else { - item++ - iv.writeUInt8(item, len) - break - } - } -} - -function getBlock (self) { - var out = self._cipher.encryptBlock(self._prev) - incr32(self._prev) - return out -} - -exports.encrypt = function (self, chunk) { - while (self._cache.length < chunk.length) { - self._cache = Buffer.concat([self._cache, getBlock(self)]) - } - var pad = self._cache.slice(0, chunk.length) - self._cache = self._cache.slice(chunk.length) - return xor(chunk, pad) -} - -}).call(this,require(47).Buffer) -},{"46":46,"47":47}],33:[function(require,module,exports){ -exports.encrypt = function (self, block) { - return self._cipher.encryptBlock(block) -} -exports.decrypt = function (self, block) { - return self._cipher.decryptBlock(block) -} - -},{}],34:[function(require,module,exports){ -(function (Buffer){ -var xor = require(46) - -function getBlock (self) { - self._prev = self._cipher.encryptBlock(self._prev) - return self._prev -} - -exports.encrypt = function (self, chunk) { - while (self._cache.length < chunk.length) { - self._cache = Buffer.concat([self._cache, getBlock(self)]) - } - - var pad = self._cache.slice(0, chunk.length) - self._cache = self._cache.slice(chunk.length) - return xor(chunk, pad) -} - -}).call(this,require(47).Buffer) -},{"46":46,"47":47}],35:[function(require,module,exports){ -(function (Buffer){ -var aes = require(21) -var Transform = require(49) -var inherits = require(97) - -inherits(StreamCipher, Transform) -module.exports = StreamCipher -function StreamCipher (mode, key, iv, decrypt) { - if (!(this instanceof StreamCipher)) { - return new StreamCipher(mode, key, iv) - } - Transform.call(this) - this._cipher = new aes.AES(key) - this._prev = new Buffer(iv.length) - this._cache = new Buffer('') - this._secCache = new Buffer('') - this._decrypt = decrypt - iv.copy(this._prev) - this._mode = mode -} -StreamCipher.prototype._update = function (chunk) { - return this._mode.encrypt(this, chunk, this._decrypt) -} -StreamCipher.prototype._final = function () { - this._cipher.scrub() -} - -}).call(this,require(47).Buffer) -},{"21":21,"47":47,"49":49,"97":97}],36:[function(require,module,exports){ -var ebtk = require(87) -var aes = require(23) -var DES = require(37) -var desModes = require(38) -var aesModes = require(27) -function createCipher (suite, password) { - var keyLen, ivLen - suite = suite.toLowerCase() - if (aesModes[suite]) { - keyLen = aesModes[suite].key - ivLen = aesModes[suite].iv - } else if (desModes[suite]) { - keyLen = desModes[suite].key * 8 - ivLen = desModes[suite].iv - } else { - throw new TypeError('invalid suite type') - } - var keys = ebtk(password, false, keyLen, ivLen) - return createCipheriv(suite, keys.key, keys.iv) -} -function createDecipher (suite, password) { - var keyLen, ivLen - suite = suite.toLowerCase() - if (aesModes[suite]) { - keyLen = aesModes[suite].key - ivLen = aesModes[suite].iv - } else if (desModes[suite]) { - keyLen = desModes[suite].key * 8 - ivLen = desModes[suite].iv - } else { - throw new TypeError('invalid suite type') - } - var keys = ebtk(password, false, keyLen, ivLen) - return createDecipheriv(suite, keys.key, keys.iv) -} - -function createCipheriv (suite, key, iv) { - suite = suite.toLowerCase() - if (aesModes[suite]) { - return aes.createCipheriv(suite, key, iv) - } else if (desModes[suite]) { - return new DES({ - key: key, - iv: iv, - mode: suite - }) - } else { - throw new TypeError('invalid suite type') - } -} -function createDecipheriv (suite, key, iv) { - suite = suite.toLowerCase() - if (aesModes[suite]) { - return aes.createDecipheriv(suite, key, iv) - } else if (desModes[suite]) { - return new DES({ - key: key, - iv: iv, - mode: suite, - decrypt: true - }) - } else { - throw new TypeError('invalid suite type') - } -} -exports.createCipher = exports.Cipher = createCipher -exports.createCipheriv = exports.Cipheriv = createCipheriv -exports.createDecipher = exports.Decipher = createDecipher -exports.createDecipheriv = exports.Decipheriv = createDecipheriv -function getCiphers () { - return Object.keys(desModes).concat(aes.getCiphers()) -} -exports.listCiphers = exports.getCiphers = getCiphers - -},{"23":23,"27":27,"37":37,"38":38,"87":87}],37:[function(require,module,exports){ -(function (Buffer){ -var CipherBase = require(49) -var des = require(59) -var inherits = require(97) - -var modes = { - 'des-ede3-cbc': des.CBC.instantiate(des.EDE), - 'des-ede3': des.EDE, - 'des-ede-cbc': des.CBC.instantiate(des.EDE), - 'des-ede': des.EDE, - 'des-cbc': des.CBC.instantiate(des.DES), - 'des-ecb': des.DES -} -modes.des = modes['des-cbc'] -modes.des3 = modes['des-ede3-cbc'] -module.exports = DES -inherits(DES, CipherBase) -function DES (opts) { - CipherBase.call(this) - var modeName = opts.mode.toLowerCase() - var mode = modes[modeName] - var type - if (opts.decrypt) { - type = 'decrypt' - } else { - type = 'encrypt' - } - var key = opts.key - if (modeName === 'des-ede' || modeName === 'des-ede-cbc') { - key = Buffer.concat([key, key.slice(0, 8)]) - } - var iv = opts.iv - this._des = mode.create({ - key: key, - iv: iv, - type: type - }) -} -DES.prototype._update = function (data) { - return new Buffer(this._des.update(data)) -} -DES.prototype._final = function () { - return new Buffer(this._des.final()) -} - -}).call(this,require(47).Buffer) -},{"47":47,"49":49,"59":59,"97":97}],38:[function(require,module,exports){ -exports['des-ecb'] = { - key: 8, - iv: 0 -} -exports['des-cbc'] = exports.des = { - key: 8, - iv: 8 -} -exports['des-ede3-cbc'] = exports.des3 = { - key: 24, - iv: 8 -} -exports['des-ede3'] = { - key: 24, - iv: 0 -} -exports['des-ede-cbc'] = { - key: 16, - iv: 8 -} -exports['des-ede'] = { - key: 16, - iv: 0 -} - -},{}],39:[function(require,module,exports){ -(function (Buffer){ -var bn = require(18); -var randomBytes = require(136); -module.exports = crt; -function blind(priv) { - var r = getr(priv); - var blinder = r.toRed(bn.mont(priv.modulus)) - .redPow(new bn(priv.publicExponent)).fromRed(); - return { - blinder: blinder, - unblinder:r.invm(priv.modulus) - }; -} -function crt(msg, priv) { - var blinds = blind(priv); - var len = priv.modulus.byteLength(); - var mod = bn.mont(priv.modulus); - var blinded = new bn(msg).mul(blinds.blinder).umod(priv.modulus); - var c1 = blinded.toRed(bn.mont(priv.prime1)); - var c2 = blinded.toRed(bn.mont(priv.prime2)); - var qinv = priv.coefficient; - var p = priv.prime1; - var q = priv.prime2; - var m1 = c1.redPow(priv.exponent1); - var m2 = c2.redPow(priv.exponent2); - m1 = m1.fromRed(); - m2 = m2.fromRed(); - var h = m1.isub(m2).imul(qinv).umod(p); - h.imul(q); - m2.iadd(h); - return new Buffer(m2.imul(blinds.unblinder).umod(priv.modulus).toArray(false, len)); -} -crt.getr = getr; -function getr(priv) { - var len = priv.modulus.byteLength(); - var r = new bn(randomBytes(len)); - while (r.cmp(priv.modulus) >= 0 || !r.umod(priv.prime1) || !r.umod(priv.prime2)) { - r = new bn(randomBytes(len)); - } - return r; -} - -}).call(this,require(47).Buffer) -},{"136":136,"18":18,"47":47}],40:[function(require,module,exports){ -(function (Buffer){ -'use strict' -exports['RSA-SHA224'] = exports.sha224WithRSAEncryption = { - sign: 'rsa', - hash: 'sha224', - id: new Buffer('302d300d06096086480165030402040500041c', 'hex') -} -exports['RSA-SHA256'] = exports.sha256WithRSAEncryption = { - sign: 'rsa', - hash: 'sha256', - id: new Buffer('3031300d060960864801650304020105000420', 'hex') -} -exports['RSA-SHA384'] = exports.sha384WithRSAEncryption = { - sign: 'rsa', - hash: 'sha384', - id: new Buffer('3041300d060960864801650304020205000430', 'hex') -} -exports['RSA-SHA512'] = exports.sha512WithRSAEncryption = { - sign: 'rsa', - hash: 'sha512', - id: new Buffer('3051300d060960864801650304020305000440', 'hex') -} -exports['RSA-SHA1'] = { - sign: 'rsa', - hash: 'sha1', - id: new Buffer('3021300906052b0e03021a05000414', 'hex') -} -exports['ecdsa-with-SHA1'] = { - sign: 'ecdsa', - hash: 'sha1', - id: new Buffer('', 'hex') -} - -exports.DSA = exports['DSA-SHA1'] = exports['DSA-SHA'] = { - sign: 'dsa', - hash: 'sha1', - id: new Buffer('', 'hex') -} -exports['DSA-SHA224'] = exports['DSA-WITH-SHA224'] = { - sign: 'dsa', - hash: 'sha224', - id: new Buffer('', 'hex') -} -exports['DSA-SHA256'] = exports['DSA-WITH-SHA256'] = { - sign: 'dsa', - hash: 'sha256', - id: new Buffer('', 'hex') -} -exports['DSA-SHA384'] = exports['DSA-WITH-SHA384'] = { - sign: 'dsa', - hash: 'sha384', - id: new Buffer('', 'hex') -} -exports['DSA-SHA512'] = exports['DSA-WITH-SHA512'] = { - sign: 'dsa', - hash: 'sha512', - id: new Buffer('', 'hex') -} -exports['DSA-RIPEMD160'] = { - sign: 'dsa', - hash: 'rmd160', - id: new Buffer('', 'hex') -} -exports['RSA-RIPEMD160'] = exports.ripemd160WithRSA = { - sign: 'rsa', - hash: 'rmd160', - id: new Buffer('3021300906052b2403020105000414', 'hex') -} -exports['RSA-MD5'] = exports.md5WithRSAEncryption = { - sign: 'rsa', - hash: 'md5', - id: new Buffer('3020300c06082a864886f70d020505000410', 'hex') -} - -}).call(this,require(47).Buffer) -},{"47":47}],41:[function(require,module,exports){ -(function (Buffer){ -var _algos = require(40) -var createHash = require(52) -var inherits = require(97) -var sign = require(43) -var stream = require(148) -var verify = require(44) - -var algos = {} -Object.keys(_algos).forEach(function (key) { - algos[key] = algos[key.toLowerCase()] = _algos[key] -}) - -function Sign (algorithm) { - stream.Writable.call(this) - - var data = algos[algorithm] - if (!data) { - throw new Error('Unknown message digest') - } - - this._hashType = data.hash - this._hash = createHash(data.hash) - this._tag = data.id - this._signType = data.sign -} -inherits(Sign, stream.Writable) - -Sign.prototype._write = function _write (data, _, done) { - this._hash.update(data) - done() -} - -Sign.prototype.update = function update (data, enc) { - if (typeof data === 'string') { - data = new Buffer(data, enc) - } - - this._hash.update(data) - return this -} - -Sign.prototype.sign = function signMethod (key, enc) { - this.end() - var hash = this._hash.digest() - var sig = sign(Buffer.concat([this._tag, hash]), key, this._hashType, this._signType) - - return enc ? sig.toString(enc) : sig -} - -function Verify (algorithm) { - stream.Writable.call(this) - - var data = algos[algorithm] - if (!data) { - throw new Error('Unknown message digest') - } - - this._hash = createHash(data.hash) - this._tag = data.id - this._signType = data.sign -} -inherits(Verify, stream.Writable) - -Verify.prototype._write = function _write (data, _, done) { - this._hash.update(data) - - done() -} - -Verify.prototype.update = function update (data, enc) { - if (typeof data === 'string') { - data = new Buffer(data, enc) - } - - this._hash.update(data) - return this -} - -Verify.prototype.verify = function verifyMethod (key, sig, enc) { - if (typeof sig === 'string') { - sig = new Buffer(sig, enc) - } - - this.end() - var hash = this._hash.digest() - - return verify(sig, Buffer.concat([this._tag, hash]), key, this._signType) -} - -function createSign (algorithm) { - return new Sign(algorithm) -} - -function createVerify (algorithm) { - return new Verify(algorithm) -} - -module.exports = { - Sign: createSign, - Verify: createVerify, - createSign: createSign, - createVerify: createVerify -} - -}).call(this,require(47).Buffer) -},{"148":148,"40":40,"43":43,"44":44,"47":47,"52":52,"97":97}],42:[function(require,module,exports){ -'use strict' -exports['1.3.132.0.10'] = 'secp256k1' - -exports['1.3.132.0.33'] = 'p224' - -exports['1.2.840.10045.3.1.1'] = 'p192' - -exports['1.2.840.10045.3.1.7'] = 'p256' - -exports['1.3.132.0.34'] = 'p384' - -exports['1.3.132.0.35'] = 'p521' - -},{}],43:[function(require,module,exports){ -(function (Buffer){ -// much of this based on https://github.com/indutny/self-signed/blob/gh-pages/lib/rsa.js -var createHmac = require(55) -var crt = require(39) -var curves = require(42) -var elliptic = require(69) -var parseKeys = require(111) - -var BN = require(18) -var EC = elliptic.ec - -function sign (hash, key, hashType, signType) { - var priv = parseKeys(key) - if (priv.curve) { - if (signType !== 'ecdsa') throw new Error('wrong private key type') - - return ecSign(hash, priv) - } else if (priv.type === 'dsa') { - if (signType !== 'dsa') { - throw new Error('wrong private key type') - } - return dsaSign(hash, priv, hashType) - } else { - if (signType !== 'rsa') throw new Error('wrong private key type') - } - - var len = priv.modulus.byteLength() - var pad = [ 0, 1 ] - while (hash.length + pad.length + 1 < len) { - pad.push(0xff) - } - pad.push(0x00) - var i = -1 - while (++i < hash.length) { - pad.push(hash[i]) - } - - var out = crt(pad, priv) - return out -} - -function ecSign (hash, priv) { - var curveId = curves[priv.curve.join('.')] - if (!curveId) throw new Error('unknown curve ' + priv.curve.join('.')) - - var curve = new EC(curveId) - var key = curve.genKeyPair() - - key._importPrivate(priv.privateKey) - var out = key.sign(hash) - - return new Buffer(out.toDER()) -} - -function dsaSign (hash, priv, algo) { - var x = priv.params.priv_key - var p = priv.params.p - var q = priv.params.q - var g = priv.params.g - var r = new BN(0) - var k - var H = bits2int(hash, q).mod(q) - var s = false - var kv = getKey(x, q, hash, algo) - while (s === false) { - k = makeKey(q, kv, algo) - r = makeR(g, k, p, q) - s = k.invm(q).imul(H.add(x.mul(r))).mod(q) - if (!s.cmpn(0)) { - s = false - r = new BN(0) - } - } - return toDER(r, s) -} - -function toDER (r, s) { - r = r.toArray() - s = s.toArray() - - // Pad values - if (r[0] & 0x80) { - r = [ 0 ].concat(r) - } - // Pad values - if (s[0] & 0x80) { - s = [0].concat(s) - } - - var total = r.length + s.length + 4 - var res = [ 0x30, total, 0x02, r.length ] - res = res.concat(r, [ 0x02, s.length ], s) - return new Buffer(res) -} - -function getKey (x, q, hash, algo) { - x = new Buffer(x.toArray()) - if (x.length < q.byteLength()) { - var zeros = new Buffer(q.byteLength() - x.length) - zeros.fill(0) - x = Buffer.concat([zeros, x]) - } - var hlen = hash.length - var hbits = bits2octets(hash, q) - var v = new Buffer(hlen) - v.fill(1) - var k = new Buffer(hlen) - k.fill(0) - k = createHmac(algo, k) - .update(v) - .update(new Buffer([0])) - .update(x) - .update(hbits) - .digest() - v = createHmac(algo, k) - .update(v) - .digest() - k = createHmac(algo, k) - .update(v) - .update(new Buffer([1])) - .update(x) - .update(hbits) - .digest() - v = createHmac(algo, k) - .update(v) - .digest() - return { - k: k, - v: v - } -} - -function bits2int (obits, q) { - var bits = new BN(obits) - var shift = (obits.length << 3) - q.bitLength() - if (shift > 0) { - bits.ishrn(shift) - } - return bits -} - -function bits2octets (bits, q) { - bits = bits2int(bits, q) - bits = bits.mod(q) - var out = new Buffer(bits.toArray()) - if (out.length < q.byteLength()) { - var zeros = new Buffer(q.byteLength() - out.length) - zeros.fill(0) - out = Buffer.concat([zeros, out]) - } - return out -} - -function makeKey (q, kv, algo) { - var t, k - - do { - t = new Buffer('') - - while (t.length * 8 < q.bitLength()) { - kv.v = createHmac(algo, kv.k) - .update(kv.v) - .digest() - t = Buffer.concat([t, kv.v]) - } - - k = bits2int(t, q) - kv.k = createHmac(algo, kv.k) - .update(kv.v) - .update(new Buffer([0])) - .digest() - kv.v = createHmac(algo, kv.k) - .update(kv.v) - .digest() - } while (k.cmp(q) !== -1) - - return k -} - -function makeR (g, k, p, q) { - return g.toRed(BN.mont(p)).redPow(k).fromRed().mod(q) -} - -module.exports = sign -module.exports.getKey = getKey -module.exports.makeKey = makeKey - -}).call(this,require(47).Buffer) -},{"111":111,"18":18,"39":39,"42":42,"47":47,"55":55,"69":69}],44:[function(require,module,exports){ -(function (Buffer){ -// much of this based on https://github.com/indutny/self-signed/blob/gh-pages/lib/rsa.js -var curves = require(42) -var elliptic = require(69) -var parseKeys = require(111) - -var BN = require(18) -var EC = elliptic.ec - -function verify (sig, hash, key, signType) { - var pub = parseKeys(key) - if (pub.type === 'ec') { - if (signType !== 'ecdsa') { - throw new Error('wrong public key type') - } - return ecVerify(sig, hash, pub) - } else if (pub.type === 'dsa') { - if (signType !== 'dsa') { - throw new Error('wrong public key type') - } - return dsaVerify(sig, hash, pub) - } else { - if (signType !== 'rsa') { - throw new Error('wrong public key type') - } - } - var len = pub.modulus.byteLength() - var pad = [ 1 ] - var padNum = 0 - while (hash.length + pad.length + 2 < len) { - pad.push(0xff) - padNum++ - } - pad.push(0x00) - var i = -1 - while (++i < hash.length) { - pad.push(hash[i]) - } - pad = new Buffer(pad) - var red = BN.mont(pub.modulus) - sig = new BN(sig).toRed(red) - - sig = sig.redPow(new BN(pub.publicExponent)) - - sig = new Buffer(sig.fromRed().toArray()) - var out = 0 - if (padNum < 8) { - out = 1 - } - len = Math.min(sig.length, pad.length) - if (sig.length !== pad.length) { - out = 1 - } - - i = -1 - while (++i < len) { - out |= (sig[i] ^ pad[i]) - } - return out === 0 -} - -function ecVerify (sig, hash, pub) { - var curveId = curves[pub.data.algorithm.curve.join('.')] - if (!curveId) throw new Error('unknown curve ' + pub.data.algorithm.curve.join('.')) - - var curve = new EC(curveId) - var pubkey = pub.data.subjectPrivateKey.data - - return curve.verify(hash, sig, pubkey) -} - -function dsaVerify (sig, hash, pub) { - var p = pub.data.p - var q = pub.data.q - var g = pub.data.g - var y = pub.data.pub_key - var unpacked = parseKeys.signature.decode(sig, 'der') - var s = unpacked.s - var r = unpacked.r - checkValue(s, q) - checkValue(r, q) - var montp = BN.mont(p) - var w = s.invm(q) - var v = g.toRed(montp) - .redPow(new BN(hash).mul(w).mod(q)) - .fromRed() - .mul( - y.toRed(montp) - .redPow(r.mul(w).mod(q)) - .fromRed() - ).mod(p).mod(q) - return !v.cmp(r) -} - -function checkValue (b, q) { - if (b.cmpn(0) <= 0) { - throw new Error('invalid sig') - } - if (b.cmp(q) >= q) { - throw new Error('invalid sig') - } -} - -module.exports = verify - -}).call(this,require(47).Buffer) -},{"111":111,"18":18,"42":42,"47":47,"69":69}],45:[function(require,module,exports){ -(function (global){ -'use strict'; - -var buffer = require(47); -var Buffer = buffer.Buffer; -var SlowBuffer = buffer.SlowBuffer; -var MAX_LEN = buffer.kMaxLength || 2147483647; -exports.alloc = function alloc(size, fill, encoding) { - if (typeof Buffer.alloc === 'function') { - return Buffer.alloc(size, fill, encoding); - } - if (typeof encoding === 'number') { - throw new TypeError('encoding must not be number'); - } - if (typeof size !== 'number') { - throw new TypeError('size must be a number'); - } - if (size > MAX_LEN) { - throw new RangeError('size is too large'); - } - var enc = encoding; - var _fill = fill; - if (_fill === undefined) { - enc = undefined; - _fill = 0; - } - var buf = new Buffer(size); - if (typeof _fill === 'string') { - var fillBuf = new Buffer(_fill, enc); - var flen = fillBuf.length; - var i = -1; - while (++i < size) { - buf[i] = fillBuf[i % flen]; - } - } else { - buf.fill(_fill); - } - return buf; -} -exports.allocUnsafe = function allocUnsafe(size) { - if (typeof Buffer.allocUnsafe === 'function') { - return Buffer.allocUnsafe(size); - } - if (typeof size !== 'number') { - throw new TypeError('size must be a number'); - } - if (size > MAX_LEN) { - throw new RangeError('size is too large'); - } - return new Buffer(size); -} -exports.from = function from(value, encodingOrOffset, length) { - if (typeof Buffer.from === 'function' && (!global.Uint8Array || Uint8Array.from !== Buffer.from)) { - return Buffer.from(value, encodingOrOffset, length); - } - if (typeof value === 'number') { - throw new TypeError('"value" argument must not be a number'); - } - if (typeof value === 'string') { - return new Buffer(value, encodingOrOffset); - } - if (typeof ArrayBuffer !== 'undefined' && value instanceof ArrayBuffer) { - var offset = encodingOrOffset; - if (arguments.length === 1) { - return new Buffer(value); - } - if (typeof offset === 'undefined') { - offset = 0; - } - var len = length; - if (typeof len === 'undefined') { - len = value.byteLength - offset; - } - if (offset >= value.byteLength) { - throw new RangeError('\'offset\' is out of bounds'); - } - if (len > value.byteLength - offset) { - throw new RangeError('\'length\' is out of bounds'); - } - return new Buffer(value.slice(offset, offset + len)); - } - if (Buffer.isBuffer(value)) { - var out = new Buffer(value.length); - value.copy(out, 0, 0, value.length); - return out; - } - if (value) { - if (Array.isArray(value) || (typeof ArrayBuffer !== 'undefined' && value.buffer instanceof ArrayBuffer) || 'length' in value) { - return new Buffer(value); - } - if (value.type === 'Buffer' && Array.isArray(value.data)) { - return new Buffer(value.data); - } - } - - throw new TypeError('First argument must be a string, Buffer, ' + 'ArrayBuffer, Array, or array-like object.'); -} -exports.allocUnsafeSlow = function allocUnsafeSlow(size) { - if (typeof Buffer.allocUnsafeSlow === 'function') { - return Buffer.allocUnsafeSlow(size); - } - if (typeof size !== 'number') { - throw new TypeError('size must be a number'); - } - if (size >= MAX_LEN) { - throw new RangeError('size is too large'); - } - return new SlowBuffer(size); -} - -}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {}) -},{"47":47}],46:[function(require,module,exports){ -(function (Buffer){ -module.exports = function xor (a, b) { - var length = Math.min(a.length, b.length) - var buffer = new Buffer(length) - - for (var i = 0; i < length; ++i) { - buffer[i] = a[i] ^ b[i] - } - - return buffer -} - -}).call(this,require(47).Buffer) -},{"47":47}],47:[function(require,module,exports){ -(function (global){ -/*! - * The buffer module from node.js, for the browser. - * - * @author Feross Aboukhadijeh - * @license MIT - */ -/* eslint-disable no-proto */ - -'use strict' - -var base64 = require(17) -var ieee754 = require(94) -var isArray = require(48) - -exports.Buffer = Buffer -exports.SlowBuffer = SlowBuffer -exports.INSPECT_MAX_BYTES = 50 -Buffer.poolSize = 8192 // not used by this implementation - -var rootParent = {} - -/** - * If `Buffer.TYPED_ARRAY_SUPPORT`: - * === true Use Uint8Array implementation (fastest) - * === false Use Object implementation (most compatible, even IE6) - * - * Browsers that support typed arrays are IE 10+, Firefox 4+, Chrome 7+, Safari 5.1+, - * Opera 11.6+, iOS 4.2+. - * - * Due to various browser bugs, sometimes the Object implementation will be used even - * when the browser supports typed arrays. - * - * Note: - * - * - Firefox 4-29 lacks support for adding new properties to `Uint8Array` instances, - * See: https://bugzilla.mozilla.org/show_bug.cgi?id=695438. - * - * - Safari 5-7 lacks support for changing the `Object.prototype.constructor` property - * on objects. - * - * - Chrome 9-10 is missing the `TypedArray.prototype.subarray` function. - * - * - IE10 has a broken `TypedArray.prototype.subarray` function which returns arrays of - * incorrect length in some situations. - - * We detect these buggy browsers and set `Buffer.TYPED_ARRAY_SUPPORT` to `false` so they - * get the Object implementation, which is slower but behaves correctly. - */ -Buffer.TYPED_ARRAY_SUPPORT = global.TYPED_ARRAY_SUPPORT !== undefined - ? global.TYPED_ARRAY_SUPPORT - : typedArraySupport() - -function typedArraySupport () { - function Bar () {} - try { - var arr = new Uint8Array(1) - arr.foo = function () { return 42 } - arr.constructor = Bar - return arr.foo() === 42 && // typed array instances can be augmented - arr.constructor === Bar && // constructor can be set - typeof arr.subarray === 'function' && // chrome 9-10 lack `subarray` - arr.subarray(1, 1).byteLength === 0 // ie10 has broken `subarray` - } catch (e) { - return false - } -} - -function kMaxLength () { - return Buffer.TYPED_ARRAY_SUPPORT - ? 0x7fffffff - : 0x3fffffff -} - -/** - * Class: Buffer - * ============= - * - * The Buffer constructor returns instances of `Uint8Array` that are augmented - * with function properties for all the node `Buffer` API functions. We use - * `Uint8Array` so that square bracket notation works as expected -- it returns - * a single octet. - * - * By augmenting the instances, we can avoid modifying the `Uint8Array` - * prototype. - */ -function Buffer (arg) { - if (!(this instanceof Buffer)) { - // Avoid going through an ArgumentsAdaptorTrampoline in the common case. - if (arguments.length > 1) return new Buffer(arg, arguments[1]) - return new Buffer(arg) - } - - if (!Buffer.TYPED_ARRAY_SUPPORT) { - this.length = 0 - this.parent = undefined - } - - // Common case. - if (typeof arg === 'number') { - return fromNumber(this, arg) - } - - // Slightly less common case. - if (typeof arg === 'string') { - return fromString(this, arg, arguments.length > 1 ? arguments[1] : 'utf8') - } - - // Unusual. - return fromObject(this, arg) -} - -function fromNumber (that, length) { - that = allocate(that, length < 0 ? 0 : checked(length) | 0) - if (!Buffer.TYPED_ARRAY_SUPPORT) { - for (var i = 0; i < length; i++) { - that[i] = 0 - } - } - return that -} - -function fromString (that, string, encoding) { - if (typeof encoding !== 'string' || encoding === '') encoding = 'utf8' - - // Assumption: byteLength() return value is always < kMaxLength. - var length = byteLength(string, encoding) | 0 - that = allocate(that, length) - - that.write(string, encoding) - return that -} - -function fromObject (that, object) { - if (Buffer.isBuffer(object)) return fromBuffer(that, object) - - if (isArray(object)) return fromArray(that, object) - - if (object == null) { - throw new TypeError('must start with number, buffer, array or string') - } - - if (typeof ArrayBuffer !== 'undefined') { - if (object.buffer instanceof ArrayBuffer) { - return fromTypedArray(that, object) - } - if (object instanceof ArrayBuffer) { - return fromArrayBuffer(that, object) - } - } - - if (object.length) return fromArrayLike(that, object) - - return fromJsonObject(that, object) -} - -function fromBuffer (that, buffer) { - var length = checked(buffer.length) | 0 - that = allocate(that, length) - buffer.copy(that, 0, 0, length) - return that -} - -function fromArray (that, array) { - var length = checked(array.length) | 0 - that = allocate(that, length) - for (var i = 0; i < length; i += 1) { - that[i] = array[i] & 255 - } - return that -} - -// Duplicate of fromArray() to keep fromArray() monomorphic. -function fromTypedArray (that, array) { - var length = checked(array.length) | 0 - that = allocate(that, length) - // Truncating the elements is probably not what people expect from typed - // arrays with BYTES_PER_ELEMENT > 1 but it's compatible with the behavior - // of the old Buffer constructor. - for (var i = 0; i < length; i += 1) { - that[i] = array[i] & 255 - } - return that -} - -function fromArrayBuffer (that, array) { - if (Buffer.TYPED_ARRAY_SUPPORT) { - // Return an augmented `Uint8Array` instance, for best performance - array.byteLength - that = Buffer._augment(new Uint8Array(array)) - } else { - // Fallback: Return an object instance of the Buffer class - that = fromTypedArray(that, new Uint8Array(array)) - } - return that -} - -function fromArrayLike (that, array) { - var length = checked(array.length) | 0 - that = allocate(that, length) - for (var i = 0; i < length; i += 1) { - that[i] = array[i] & 255 - } - return that -} - -// Deserialize { type: 'Buffer', data: [1,2,3,...] } into a Buffer object. -// Returns a zero-length buffer for inputs that don't conform to the spec. -function fromJsonObject (that, object) { - var array - var length = 0 - - if (object.type === 'Buffer' && isArray(object.data)) { - array = object.data - length = checked(array.length) | 0 - } - that = allocate(that, length) - - for (var i = 0; i < length; i += 1) { - that[i] = array[i] & 255 - } - return that -} - -if (Buffer.TYPED_ARRAY_SUPPORT) { - Buffer.prototype.__proto__ = Uint8Array.prototype - Buffer.__proto__ = Uint8Array -} else { - // pre-set for values that may exist in the future - Buffer.prototype.length = undefined - Buffer.prototype.parent = undefined -} - -function allocate (that, length) { - if (Buffer.TYPED_ARRAY_SUPPORT) { - // Return an augmented `Uint8Array` instance, for best performance - that = Buffer._augment(new Uint8Array(length)) - that.__proto__ = Buffer.prototype - } else { - // Fallback: Return an object instance of the Buffer class - that.length = length - that._isBuffer = true - } - - var fromPool = length !== 0 && length <= Buffer.poolSize >>> 1 - if (fromPool) that.parent = rootParent - - return that -} - -function checked (length) { - // Note: cannot use `length < kMaxLength` here because that fails when - // length is NaN (which is otherwise coerced to zero.) - if (length >= kMaxLength()) { - throw new RangeError('Attempt to allocate Buffer larger than maximum ' + - 'size: 0x' + kMaxLength().toString(16) + ' bytes') - } - return length | 0 -} - -function SlowBuffer (subject, encoding) { - if (!(this instanceof SlowBuffer)) return new SlowBuffer(subject, encoding) - - var buf = new Buffer(subject, encoding) - delete buf.parent - return buf -} - -Buffer.isBuffer = function isBuffer (b) { - return !!(b != null && b._isBuffer) -} - -Buffer.compare = function compare (a, b) { - if (!Buffer.isBuffer(a) || !Buffer.isBuffer(b)) { - throw new TypeError('Arguments must be Buffers') - } - - if (a === b) return 0 - - var x = a.length - var y = b.length - - var i = 0 - var len = Math.min(x, y) - while (i < len) { - if (a[i] !== b[i]) break - - ++i - } - - if (i !== len) { - x = a[i] - y = b[i] - } - - if (x < y) return -1 - if (y < x) return 1 - return 0 -} - -Buffer.isEncoding = function isEncoding (encoding) { - switch (String(encoding).toLowerCase()) { - case 'hex': - case 'utf8': - case 'utf-8': - case 'ascii': - case 'binary': - case 'base64': - case 'raw': - case 'ucs2': - case 'ucs-2': - case 'utf16le': - case 'utf-16le': - return true - default: - return false - } -} - -Buffer.concat = function concat (list, length) { - if (!isArray(list)) throw new TypeError('list argument must be an Array of Buffers.') - - if (list.length === 0) { - return new Buffer(0) - } - - var i - if (length === undefined) { - length = 0 - for (i = 0; i < list.length; i++) { - length += list[i].length - } - } - - var buf = new Buffer(length) - var pos = 0 - for (i = 0; i < list.length; i++) { - var item = list[i] - item.copy(buf, pos) - pos += item.length - } - return buf -} - -function byteLength (string, encoding) { - if (typeof string !== 'string') string = '' + string - - var len = string.length - if (len === 0) return 0 - - // Use a for loop to avoid recursion - var loweredCase = false - for (;;) { - switch (encoding) { - case 'ascii': - case 'binary': - // Deprecated - case 'raw': - case 'raws': - return len - case 'utf8': - case 'utf-8': - return utf8ToBytes(string).length - case 'ucs2': - case 'ucs-2': - case 'utf16le': - case 'utf-16le': - return len * 2 - case 'hex': - return len >>> 1 - case 'base64': - return base64ToBytes(string).length - default: - if (loweredCase) return utf8ToBytes(string).length // assume utf8 - encoding = ('' + encoding).toLowerCase() - loweredCase = true - } - } -} -Buffer.byteLength = byteLength - -function slowToString (encoding, start, end) { - var loweredCase = false - - start = start | 0 - end = end === undefined || end === Infinity ? this.length : end | 0 - - if (!encoding) encoding = 'utf8' - if (start < 0) start = 0 - if (end > this.length) end = this.length - if (end <= start) return '' - - while (true) { - switch (encoding) { - case 'hex': - return hexSlice(this, start, end) - - case 'utf8': - case 'utf-8': - return utf8Slice(this, start, end) - - case 'ascii': - return asciiSlice(this, start, end) - - case 'binary': - return binarySlice(this, start, end) - - case 'base64': - return base64Slice(this, start, end) - - case 'ucs2': - case 'ucs-2': - case 'utf16le': - case 'utf-16le': - return utf16leSlice(this, start, end) - - default: - if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding) - encoding = (encoding + '').toLowerCase() - loweredCase = true - } - } -} - -Buffer.prototype.toString = function toString () { - var length = this.length | 0 - if (length === 0) return '' - if (arguments.length === 0) return utf8Slice(this, 0, length) - return slowToString.apply(this, arguments) -} - -Buffer.prototype.equals = function equals (b) { - if (!Buffer.isBuffer(b)) throw new TypeError('Argument must be a Buffer') - if (this === b) return true - return Buffer.compare(this, b) === 0 -} - -Buffer.prototype.inspect = function inspect () { - var str = '' - var max = exports.INSPECT_MAX_BYTES - if (this.length > 0) { - str = this.toString('hex', 0, max).match(/.{2}/g).join(' ') - if (this.length > max) str += ' ... ' - } - return '' -} - -Buffer.prototype.compare = function compare (b) { - if (!Buffer.isBuffer(b)) throw new TypeError('Argument must be a Buffer') - if (this === b) return 0 - return Buffer.compare(this, b) -} - -Buffer.prototype.indexOf = function indexOf (val, byteOffset) { - if (byteOffset > 0x7fffffff) byteOffset = 0x7fffffff - else if (byteOffset < -0x80000000) byteOffset = -0x80000000 - byteOffset >>= 0 - - if (this.length === 0) return -1 - if (byteOffset >= this.length) return -1 - - // Negative offsets start from the end of the buffer - if (byteOffset < 0) byteOffset = Math.max(this.length + byteOffset, 0) - - if (typeof val === 'string') { - if (val.length === 0) return -1 // special case: looking for empty string always fails - return String.prototype.indexOf.call(this, val, byteOffset) - } - if (Buffer.isBuffer(val)) { - return arrayIndexOf(this, val, byteOffset) - } - if (typeof val === 'number') { - if (Buffer.TYPED_ARRAY_SUPPORT && Uint8Array.prototype.indexOf === 'function') { - return Uint8Array.prototype.indexOf.call(this, val, byteOffset) - } - return arrayIndexOf(this, [ val ], byteOffset) - } - - function arrayIndexOf (arr, val, byteOffset) { - var foundIndex = -1 - for (var i = 0; byteOffset + i < arr.length; i++) { - if (arr[byteOffset + i] === val[foundIndex === -1 ? 0 : i - foundIndex]) { - if (foundIndex === -1) foundIndex = i - if (i - foundIndex + 1 === val.length) return byteOffset + foundIndex - } else { - foundIndex = -1 - } - } - return -1 - } - - throw new TypeError('val must be string, number or Buffer') -} - -// `get` is deprecated -Buffer.prototype.get = function get (offset) { - console.log('.get() is deprecated. Access using array indexes instead.') - return this.readUInt8(offset) -} - -// `set` is deprecated -Buffer.prototype.set = function set (v, offset) { - console.log('.set() is deprecated. Access using array indexes instead.') - return this.writeUInt8(v, offset) -} - -function hexWrite (buf, string, offset, length) { - offset = Number(offset) || 0 - var remaining = buf.length - offset - if (!length) { - length = remaining - } else { - length = Number(length) - if (length > remaining) { - length = remaining - } - } - - // must be an even number of digits - var strLen = string.length - if (strLen % 2 !== 0) throw new Error('Invalid hex string') - - if (length > strLen / 2) { - length = strLen / 2 - } - for (var i = 0; i < length; i++) { - var parsed = parseInt(string.substr(i * 2, 2), 16) - if (isNaN(parsed)) throw new Error('Invalid hex string') - buf[offset + i] = parsed - } - return i -} - -function utf8Write (buf, string, offset, length) { - return blitBuffer(utf8ToBytes(string, buf.length - offset), buf, offset, length) -} - -function asciiWrite (buf, string, offset, length) { - return blitBuffer(asciiToBytes(string), buf, offset, length) -} - -function binaryWrite (buf, string, offset, length) { - return asciiWrite(buf, string, offset, length) -} - -function base64Write (buf, string, offset, length) { - return blitBuffer(base64ToBytes(string), buf, offset, length) -} - -function ucs2Write (buf, string, offset, length) { - return blitBuffer(utf16leToBytes(string, buf.length - offset), buf, offset, length) -} - -Buffer.prototype.write = function write (string, offset, length, encoding) { - // Buffer#write(string) - if (offset === undefined) { - encoding = 'utf8' - length = this.length - offset = 0 - // Buffer#write(string, encoding) - } else if (length === undefined && typeof offset === 'string') { - encoding = offset - length = this.length - offset = 0 - // Buffer#write(string, offset[, length][, encoding]) - } else if (isFinite(offset)) { - offset = offset | 0 - if (isFinite(length)) { - length = length | 0 - if (encoding === undefined) encoding = 'utf8' - } else { - encoding = length - length = undefined - } - // legacy write(string, encoding, offset, length) - remove in v0.13 - } else { - var swap = encoding - encoding = offset - offset = length | 0 - length = swap - } - - var remaining = this.length - offset - if (length === undefined || length > remaining) length = remaining - - if ((string.length > 0 && (length < 0 || offset < 0)) || offset > this.length) { - throw new RangeError('attempt to write outside buffer bounds') - } - - if (!encoding) encoding = 'utf8' - - var loweredCase = false - for (;;) { - switch (encoding) { - case 'hex': - return hexWrite(this, string, offset, length) - - case 'utf8': - case 'utf-8': - return utf8Write(this, string, offset, length) - - case 'ascii': - return asciiWrite(this, string, offset, length) - - case 'binary': - return binaryWrite(this, string, offset, length) - - case 'base64': - // Warning: maxLength not taken into account in base64Write - return base64Write(this, string, offset, length) - - case 'ucs2': - case 'ucs-2': - case 'utf16le': - case 'utf-16le': - return ucs2Write(this, string, offset, length) - - default: - if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding) - encoding = ('' + encoding).toLowerCase() - loweredCase = true - } - } -} - -Buffer.prototype.toJSON = function toJSON () { - return { - type: 'Buffer', - data: Array.prototype.slice.call(this._arr || this, 0) - } -} - -function base64Slice (buf, start, end) { - if (start === 0 && end === buf.length) { - return base64.fromByteArray(buf) - } else { - return base64.fromByteArray(buf.slice(start, end)) - } -} - -function utf8Slice (buf, start, end) { - end = Math.min(buf.length, end) - var res = [] - - var i = start - while (i < end) { - var firstByte = buf[i] - var codePoint = null - var bytesPerSequence = (firstByte > 0xEF) ? 4 - : (firstByte > 0xDF) ? 3 - : (firstByte > 0xBF) ? 2 - : 1 - - if (i + bytesPerSequence <= end) { - var secondByte, thirdByte, fourthByte, tempCodePoint - - switch (bytesPerSequence) { - case 1: - if (firstByte < 0x80) { - codePoint = firstByte - } - break - case 2: - secondByte = buf[i + 1] - if ((secondByte & 0xC0) === 0x80) { - tempCodePoint = (firstByte & 0x1F) << 0x6 | (secondByte & 0x3F) - if (tempCodePoint > 0x7F) { - codePoint = tempCodePoint - } - } - break - case 3: - secondByte = buf[i + 1] - thirdByte = buf[i + 2] - if ((secondByte & 0xC0) === 0x80 && (thirdByte & 0xC0) === 0x80) { - tempCodePoint = (firstByte & 0xF) << 0xC | (secondByte & 0x3F) << 0x6 | (thirdByte & 0x3F) - if (tempCodePoint > 0x7FF && (tempCodePoint < 0xD800 || tempCodePoint > 0xDFFF)) { - codePoint = tempCodePoint - } - } - break - case 4: - secondByte = buf[i + 1] - thirdByte = buf[i + 2] - fourthByte = buf[i + 3] - if ((secondByte & 0xC0) === 0x80 && (thirdByte & 0xC0) === 0x80 && (fourthByte & 0xC0) === 0x80) { - tempCodePoint = (firstByte & 0xF) << 0x12 | (secondByte & 0x3F) << 0xC | (thirdByte & 0x3F) << 0x6 | (fourthByte & 0x3F) - if (tempCodePoint > 0xFFFF && tempCodePoint < 0x110000) { - codePoint = tempCodePoint - } - } - } - } - - if (codePoint === null) { - // we did not generate a valid codePoint so insert a - // replacement char (U+FFFD) and advance only 1 byte - codePoint = 0xFFFD - bytesPerSequence = 1 - } else if (codePoint > 0xFFFF) { - // encode to utf16 (surrogate pair dance) - codePoint -= 0x10000 - res.push(codePoint >>> 10 & 0x3FF | 0xD800) - codePoint = 0xDC00 | codePoint & 0x3FF - } - - res.push(codePoint) - i += bytesPerSequence - } - - return decodeCodePointsArray(res) -} - -// Based on http://stackoverflow.com/a/22747272/680742, the browser with -// the lowest limit is Chrome, with 0x10000 args. -// We go 1 magnitude less, for safety -var MAX_ARGUMENTS_LENGTH = 0x1000 - -function decodeCodePointsArray (codePoints) { - var len = codePoints.length - if (len <= MAX_ARGUMENTS_LENGTH) { - return String.fromCharCode.apply(String, codePoints) // avoid extra slice() - } - - // Decode in chunks to avoid "call stack size exceeded". - var res = '' - var i = 0 - while (i < len) { - res += String.fromCharCode.apply( - String, - codePoints.slice(i, i += MAX_ARGUMENTS_LENGTH) - ) - } - return res -} - -function asciiSlice (buf, start, end) { - var ret = '' - end = Math.min(buf.length, end) - - for (var i = start; i < end; i++) { - ret += String.fromCharCode(buf[i] & 0x7F) - } - return ret -} - -function binarySlice (buf, start, end) { - var ret = '' - end = Math.min(buf.length, end) - - for (var i = start; i < end; i++) { - ret += String.fromCharCode(buf[i]) - } - return ret -} - -function hexSlice (buf, start, end) { - var len = buf.length - - if (!start || start < 0) start = 0 - if (!end || end < 0 || end > len) end = len - - var out = '' - for (var i = start; i < end; i++) { - out += toHex(buf[i]) - } - return out -} - -function utf16leSlice (buf, start, end) { - var bytes = buf.slice(start, end) - var res = '' - for (var i = 0; i < bytes.length; i += 2) { - res += String.fromCharCode(bytes[i] + bytes[i + 1] * 256) - } - return res -} - -Buffer.prototype.slice = function slice (start, end) { - var len = this.length - start = ~~start - end = end === undefined ? len : ~~end - - if (start < 0) { - start += len - if (start < 0) start = 0 - } else if (start > len) { - start = len - } - - if (end < 0) { - end += len - if (end < 0) end = 0 - } else if (end > len) { - end = len - } - - if (end < start) end = start - - var newBuf - if (Buffer.TYPED_ARRAY_SUPPORT) { - newBuf = Buffer._augment(this.subarray(start, end)) - } else { - var sliceLen = end - start - newBuf = new Buffer(sliceLen, undefined) - for (var i = 0; i < sliceLen; i++) { - newBuf[i] = this[i + start] - } - } - - if (newBuf.length) newBuf.parent = this.parent || this - - return newBuf -} - -/* - * Need to make sure that buffer isn't trying to write out of bounds. - */ -function checkOffset (offset, ext, length) { - if ((offset % 1) !== 0 || offset < 0) throw new RangeError('offset is not uint') - if (offset + ext > length) throw new RangeError('Trying to access beyond buffer length') -} - -Buffer.prototype.readUIntLE = function readUIntLE (offset, byteLength, noAssert) { - offset = offset | 0 - byteLength = byteLength | 0 - if (!noAssert) checkOffset(offset, byteLength, this.length) - - var val = this[offset] - var mul = 1 - var i = 0 - while (++i < byteLength && (mul *= 0x100)) { - val += this[offset + i] * mul - } - - return val -} - -Buffer.prototype.readUIntBE = function readUIntBE (offset, byteLength, noAssert) { - offset = offset | 0 - byteLength = byteLength | 0 - if (!noAssert) { - checkOffset(offset, byteLength, this.length) - } - - var val = this[offset + --byteLength] - var mul = 1 - while (byteLength > 0 && (mul *= 0x100)) { - val += this[offset + --byteLength] * mul - } - - return val -} - -Buffer.prototype.readUInt8 = function readUInt8 (offset, noAssert) { - if (!noAssert) checkOffset(offset, 1, this.length) - return this[offset] -} - -Buffer.prototype.readUInt16LE = function readUInt16LE (offset, noAssert) { - if (!noAssert) checkOffset(offset, 2, this.length) - return this[offset] | (this[offset + 1] << 8) -} - -Buffer.prototype.readUInt16BE = function readUInt16BE (offset, noAssert) { - if (!noAssert) checkOffset(offset, 2, this.length) - return (this[offset] << 8) | this[offset + 1] -} - -Buffer.prototype.readUInt32LE = function readUInt32LE (offset, noAssert) { - if (!noAssert) checkOffset(offset, 4, this.length) - - return ((this[offset]) | - (this[offset + 1] << 8) | - (this[offset + 2] << 16)) + - (this[offset + 3] * 0x1000000) -} - -Buffer.prototype.readUInt32BE = function readUInt32BE (offset, noAssert) { - if (!noAssert) checkOffset(offset, 4, this.length) - - return (this[offset] * 0x1000000) + - ((this[offset + 1] << 16) | - (this[offset + 2] << 8) | - this[offset + 3]) -} - -Buffer.prototype.readIntLE = function readIntLE (offset, byteLength, noAssert) { - offset = offset | 0 - byteLength = byteLength | 0 - if (!noAssert) checkOffset(offset, byteLength, this.length) - - var val = this[offset] - var mul = 1 - var i = 0 - while (++i < byteLength && (mul *= 0x100)) { - val += this[offset + i] * mul - } - mul *= 0x80 - - if (val >= mul) val -= Math.pow(2, 8 * byteLength) - - return val -} - -Buffer.prototype.readIntBE = function readIntBE (offset, byteLength, noAssert) { - offset = offset | 0 - byteLength = byteLength | 0 - if (!noAssert) checkOffset(offset, byteLength, this.length) - - var i = byteLength - var mul = 1 - var val = this[offset + --i] - while (i > 0 && (mul *= 0x100)) { - val += this[offset + --i] * mul - } - mul *= 0x80 - - if (val >= mul) val -= Math.pow(2, 8 * byteLength) - - return val -} - -Buffer.prototype.readInt8 = function readInt8 (offset, noAssert) { - if (!noAssert) checkOffset(offset, 1, this.length) - if (!(this[offset] & 0x80)) return (this[offset]) - return ((0xff - this[offset] + 1) * -1) -} - -Buffer.prototype.readInt16LE = function readInt16LE (offset, noAssert) { - if (!noAssert) checkOffset(offset, 2, this.length) - var val = this[offset] | (this[offset + 1] << 8) - return (val & 0x8000) ? val | 0xFFFF0000 : val -} - -Buffer.prototype.readInt16BE = function readInt16BE (offset, noAssert) { - if (!noAssert) checkOffset(offset, 2, this.length) - var val = this[offset + 1] | (this[offset] << 8) - return (val & 0x8000) ? val | 0xFFFF0000 : val -} - -Buffer.prototype.readInt32LE = function readInt32LE (offset, noAssert) { - if (!noAssert) checkOffset(offset, 4, this.length) - - return (this[offset]) | - (this[offset + 1] << 8) | - (this[offset + 2] << 16) | - (this[offset + 3] << 24) -} - -Buffer.prototype.readInt32BE = function readInt32BE (offset, noAssert) { - if (!noAssert) checkOffset(offset, 4, this.length) - - return (this[offset] << 24) | - (this[offset + 1] << 16) | - (this[offset + 2] << 8) | - (this[offset + 3]) -} - -Buffer.prototype.readFloatLE = function readFloatLE (offset, noAssert) { - if (!noAssert) checkOffset(offset, 4, this.length) - return ieee754.read(this, offset, true, 23, 4) -} - -Buffer.prototype.readFloatBE = function readFloatBE (offset, noAssert) { - if (!noAssert) checkOffset(offset, 4, this.length) - return ieee754.read(this, offset, false, 23, 4) -} - -Buffer.prototype.readDoubleLE = function readDoubleLE (offset, noAssert) { - if (!noAssert) checkOffset(offset, 8, this.length) - return ieee754.read(this, offset, true, 52, 8) -} - -Buffer.prototype.readDoubleBE = function readDoubleBE (offset, noAssert) { - if (!noAssert) checkOffset(offset, 8, this.length) - return ieee754.read(this, offset, false, 52, 8) -} - -function checkInt (buf, value, offset, ext, max, min) { - if (!Buffer.isBuffer(buf)) throw new TypeError('buffer must be a Buffer instance') - if (value > max || value < min) throw new RangeError('value is out of bounds') - if (offset + ext > buf.length) throw new RangeError('index out of range') -} - -Buffer.prototype.writeUIntLE = function writeUIntLE (value, offset, byteLength, noAssert) { - value = +value - offset = offset | 0 - byteLength = byteLength | 0 - if (!noAssert) checkInt(this, value, offset, byteLength, Math.pow(2, 8 * byteLength), 0) - - var mul = 1 - var i = 0 - this[offset] = value & 0xFF - while (++i < byteLength && (mul *= 0x100)) { - this[offset + i] = (value / mul) & 0xFF - } - - return offset + byteLength -} - -Buffer.prototype.writeUIntBE = function writeUIntBE (value, offset, byteLength, noAssert) { - value = +value - offset = offset | 0 - byteLength = byteLength | 0 - if (!noAssert) checkInt(this, value, offset, byteLength, Math.pow(2, 8 * byteLength), 0) - - var i = byteLength - 1 - var mul = 1 - this[offset + i] = value & 0xFF - while (--i >= 0 && (mul *= 0x100)) { - this[offset + i] = (value / mul) & 0xFF - } - - return offset + byteLength -} - -Buffer.prototype.writeUInt8 = function writeUInt8 (value, offset, noAssert) { - value = +value - offset = offset | 0 - if (!noAssert) checkInt(this, value, offset, 1, 0xff, 0) - if (!Buffer.TYPED_ARRAY_SUPPORT) value = Math.floor(value) - this[offset] = (value & 0xff) - return offset + 1 -} - -function objectWriteUInt16 (buf, value, offset, littleEndian) { - if (value < 0) value = 0xffff + value + 1 - for (var i = 0, j = Math.min(buf.length - offset, 2); i < j; i++) { - buf[offset + i] = (value & (0xff << (8 * (littleEndian ? i : 1 - i)))) >>> - (littleEndian ? i : 1 - i) * 8 - } -} - -Buffer.prototype.writeUInt16LE = function writeUInt16LE (value, offset, noAssert) { - value = +value - offset = offset | 0 - if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0) - if (Buffer.TYPED_ARRAY_SUPPORT) { - this[offset] = (value & 0xff) - this[offset + 1] = (value >>> 8) - } else { - objectWriteUInt16(this, value, offset, true) - } - return offset + 2 -} - -Buffer.prototype.writeUInt16BE = function writeUInt16BE (value, offset, noAssert) { - value = +value - offset = offset | 0 - if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0) - if (Buffer.TYPED_ARRAY_SUPPORT) { - this[offset] = (value >>> 8) - this[offset + 1] = (value & 0xff) - } else { - objectWriteUInt16(this, value, offset, false) - } - return offset + 2 -} - -function objectWriteUInt32 (buf, value, offset, littleEndian) { - if (value < 0) value = 0xffffffff + value + 1 - for (var i = 0, j = Math.min(buf.length - offset, 4); i < j; i++) { - buf[offset + i] = (value >>> (littleEndian ? i : 3 - i) * 8) & 0xff - } -} - -Buffer.prototype.writeUInt32LE = function writeUInt32LE (value, offset, noAssert) { - value = +value - offset = offset | 0 - if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0) - if (Buffer.TYPED_ARRAY_SUPPORT) { - this[offset + 3] = (value >>> 24) - this[offset + 2] = (value >>> 16) - this[offset + 1] = (value >>> 8) - this[offset] = (value & 0xff) - } else { - objectWriteUInt32(this, value, offset, true) - } - return offset + 4 -} - -Buffer.prototype.writeUInt32BE = function writeUInt32BE (value, offset, noAssert) { - value = +value - offset = offset | 0 - if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0) - if (Buffer.TYPED_ARRAY_SUPPORT) { - this[offset] = (value >>> 24) - this[offset + 1] = (value >>> 16) - this[offset + 2] = (value >>> 8) - this[offset + 3] = (value & 0xff) - } else { - objectWriteUInt32(this, value, offset, false) - } - return offset + 4 -} - -Buffer.prototype.writeIntLE = function writeIntLE (value, offset, byteLength, noAssert) { - value = +value - offset = offset | 0 - if (!noAssert) { - var limit = Math.pow(2, 8 * byteLength - 1) - - checkInt(this, value, offset, byteLength, limit - 1, -limit) - } - - var i = 0 - var mul = 1 - var sub = value < 0 ? 1 : 0 - this[offset] = value & 0xFF - while (++i < byteLength && (mul *= 0x100)) { - this[offset + i] = ((value / mul) >> 0) - sub & 0xFF - } - - return offset + byteLength -} - -Buffer.prototype.writeIntBE = function writeIntBE (value, offset, byteLength, noAssert) { - value = +value - offset = offset | 0 - if (!noAssert) { - var limit = Math.pow(2, 8 * byteLength - 1) - - checkInt(this, value, offset, byteLength, limit - 1, -limit) - } - - var i = byteLength - 1 - var mul = 1 - var sub = value < 0 ? 1 : 0 - this[offset + i] = value & 0xFF - while (--i >= 0 && (mul *= 0x100)) { - this[offset + i] = ((value / mul) >> 0) - sub & 0xFF - } - - return offset + byteLength -} - -Buffer.prototype.writeInt8 = function writeInt8 (value, offset, noAssert) { - value = +value - offset = offset | 0 - if (!noAssert) checkInt(this, value, offset, 1, 0x7f, -0x80) - if (!Buffer.TYPED_ARRAY_SUPPORT) value = Math.floor(value) - if (value < 0) value = 0xff + value + 1 - this[offset] = (value & 0xff) - return offset + 1 -} - -Buffer.prototype.writeInt16LE = function writeInt16LE (value, offset, noAssert) { - value = +value - offset = offset | 0 - if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000) - if (Buffer.TYPED_ARRAY_SUPPORT) { - this[offset] = (value & 0xff) - this[offset + 1] = (value >>> 8) - } else { - objectWriteUInt16(this, value, offset, true) - } - return offset + 2 -} - -Buffer.prototype.writeInt16BE = function writeInt16BE (value, offset, noAssert) { - value = +value - offset = offset | 0 - if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000) - if (Buffer.TYPED_ARRAY_SUPPORT) { - this[offset] = (value >>> 8) - this[offset + 1] = (value & 0xff) - } else { - objectWriteUInt16(this, value, offset, false) - } - return offset + 2 -} - -Buffer.prototype.writeInt32LE = function writeInt32LE (value, offset, noAssert) { - value = +value - offset = offset | 0 - if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000) - if (Buffer.TYPED_ARRAY_SUPPORT) { - this[offset] = (value & 0xff) - this[offset + 1] = (value >>> 8) - this[offset + 2] = (value >>> 16) - this[offset + 3] = (value >>> 24) - } else { - objectWriteUInt32(this, value, offset, true) - } - return offset + 4 -} - -Buffer.prototype.writeInt32BE = function writeInt32BE (value, offset, noAssert) { - value = +value - offset = offset | 0 - if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000) - if (value < 0) value = 0xffffffff + value + 1 - if (Buffer.TYPED_ARRAY_SUPPORT) { - this[offset] = (value >>> 24) - this[offset + 1] = (value >>> 16) - this[offset + 2] = (value >>> 8) - this[offset + 3] = (value & 0xff) - } else { - objectWriteUInt32(this, value, offset, false) - } - return offset + 4 -} - -function checkIEEE754 (buf, value, offset, ext, max, min) { - if (value > max || value < min) throw new RangeError('value is out of bounds') - if (offset + ext > buf.length) throw new RangeError('index out of range') - if (offset < 0) throw new RangeError('index out of range') -} - -function writeFloat (buf, value, offset, littleEndian, noAssert) { - if (!noAssert) { - checkIEEE754(buf, value, offset, 4, 3.4028234663852886e+38, -3.4028234663852886e+38) - } - ieee754.write(buf, value, offset, littleEndian, 23, 4) - return offset + 4 -} - -Buffer.prototype.writeFloatLE = function writeFloatLE (value, offset, noAssert) { - return writeFloat(this, value, offset, true, noAssert) -} - -Buffer.prototype.writeFloatBE = function writeFloatBE (value, offset, noAssert) { - return writeFloat(this, value, offset, false, noAssert) -} - -function writeDouble (buf, value, offset, littleEndian, noAssert) { - if (!noAssert) { - checkIEEE754(buf, value, offset, 8, 1.7976931348623157E+308, -1.7976931348623157E+308) - } - ieee754.write(buf, value, offset, littleEndian, 52, 8) - return offset + 8 -} - -Buffer.prototype.writeDoubleLE = function writeDoubleLE (value, offset, noAssert) { - return writeDouble(this, value, offset, true, noAssert) -} - -Buffer.prototype.writeDoubleBE = function writeDoubleBE (value, offset, noAssert) { - return writeDouble(this, value, offset, false, noAssert) -} - -// copy(targetBuffer, targetStart=0, sourceStart=0, sourceEnd=buffer.length) -Buffer.prototype.copy = function copy (target, targetStart, start, end) { - if (!start) start = 0 - if (!end && end !== 0) end = this.length - if (targetStart >= target.length) targetStart = target.length - if (!targetStart) targetStart = 0 - if (end > 0 && end < start) end = start - - // Copy 0 bytes; we're done - if (end === start) return 0 - if (target.length === 0 || this.length === 0) return 0 - - // Fatal error conditions - if (targetStart < 0) { - throw new RangeError('targetStart out of bounds') - } - if (start < 0 || start >= this.length) throw new RangeError('sourceStart out of bounds') - if (end < 0) throw new RangeError('sourceEnd out of bounds') - - // Are we oob? - if (end > this.length) end = this.length - if (target.length - targetStart < end - start) { - end = target.length - targetStart + start - } - - var len = end - start - var i - - if (this === target && start < targetStart && targetStart < end) { - // descending copy from end - for (i = len - 1; i >= 0; i--) { - target[i + targetStart] = this[i + start] - } - } else if (len < 1000 || !Buffer.TYPED_ARRAY_SUPPORT) { - // ascending copy from start - for (i = 0; i < len; i++) { - target[i + targetStart] = this[i + start] - } - } else { - target._set(this.subarray(start, start + len), targetStart) - } - - return len -} - -// fill(value, start=0, end=buffer.length) -Buffer.prototype.fill = function fill (value, start, end) { - if (!value) value = 0 - if (!start) start = 0 - if (!end) end = this.length - - if (end < start) throw new RangeError('end < start') - - // Fill 0 bytes; we're done - if (end === start) return - if (this.length === 0) return - - if (start < 0 || start >= this.length) throw new RangeError('start out of bounds') - if (end < 0 || end > this.length) throw new RangeError('end out of bounds') - - var i - if (typeof value === 'number') { - for (i = start; i < end; i++) { - this[i] = value - } - } else { - var bytes = utf8ToBytes(value.toString()) - var len = bytes.length - for (i = start; i < end; i++) { - this[i] = bytes[i % len] - } - } - - return this -} - -/** - * Creates a new `ArrayBuffer` with the *copied* memory of the buffer instance. - * Added in Node 0.12. Only available in browsers that support ArrayBuffer. - */ -Buffer.prototype.toArrayBuffer = function toArrayBuffer () { - if (typeof Uint8Array !== 'undefined') { - if (Buffer.TYPED_ARRAY_SUPPORT) { - return (new Buffer(this)).buffer - } else { - var buf = new Uint8Array(this.length) - for (var i = 0, len = buf.length; i < len; i += 1) { - buf[i] = this[i] - } - return buf.buffer - } - } else { - throw new TypeError('Buffer.toArrayBuffer not supported in this browser') - } -} - -// HELPER FUNCTIONS -// ================ - -var BP = Buffer.prototype - -/** - * Augment a Uint8Array *instance* (not the Uint8Array class!) with Buffer methods - */ -Buffer._augment = function _augment (arr) { - arr.constructor = Buffer - arr._isBuffer = true - - // save reference to original Uint8Array set method before overwriting - arr._set = arr.set - - // deprecated - arr.get = BP.get - arr.set = BP.set - - arr.write = BP.write - arr.toString = BP.toString - arr.toLocaleString = BP.toString - arr.toJSON = BP.toJSON - arr.equals = BP.equals - arr.compare = BP.compare - arr.indexOf = BP.indexOf - arr.copy = BP.copy - arr.slice = BP.slice - arr.readUIntLE = BP.readUIntLE - arr.readUIntBE = BP.readUIntBE - arr.readUInt8 = BP.readUInt8 - arr.readUInt16LE = BP.readUInt16LE - arr.readUInt16BE = BP.readUInt16BE - arr.readUInt32LE = BP.readUInt32LE - arr.readUInt32BE = BP.readUInt32BE - arr.readIntLE = BP.readIntLE - arr.readIntBE = BP.readIntBE - arr.readInt8 = BP.readInt8 - arr.readInt16LE = BP.readInt16LE - arr.readInt16BE = BP.readInt16BE - arr.readInt32LE = BP.readInt32LE - arr.readInt32BE = BP.readInt32BE - arr.readFloatLE = BP.readFloatLE - arr.readFloatBE = BP.readFloatBE - arr.readDoubleLE = BP.readDoubleLE - arr.readDoubleBE = BP.readDoubleBE - arr.writeUInt8 = BP.writeUInt8 - arr.writeUIntLE = BP.writeUIntLE - arr.writeUIntBE = BP.writeUIntBE - arr.writeUInt16LE = BP.writeUInt16LE - arr.writeUInt16BE = BP.writeUInt16BE - arr.writeUInt32LE = BP.writeUInt32LE - arr.writeUInt32BE = BP.writeUInt32BE - arr.writeIntLE = BP.writeIntLE - arr.writeIntBE = BP.writeIntBE - arr.writeInt8 = BP.writeInt8 - arr.writeInt16LE = BP.writeInt16LE - arr.writeInt16BE = BP.writeInt16BE - arr.writeInt32LE = BP.writeInt32LE - arr.writeInt32BE = BP.writeInt32BE - arr.writeFloatLE = BP.writeFloatLE - arr.writeFloatBE = BP.writeFloatBE - arr.writeDoubleLE = BP.writeDoubleLE - arr.writeDoubleBE = BP.writeDoubleBE - arr.fill = BP.fill - arr.inspect = BP.inspect - arr.toArrayBuffer = BP.toArrayBuffer - - return arr -} - -var INVALID_BASE64_RE = /[^+\/0-9A-Za-z-_]/g - -function base64clean (str) { - // Node strips out invalid characters like \n and \t from the string, base64-js does not - str = stringtrim(str).replace(INVALID_BASE64_RE, '') - // Node converts strings with length < 2 to '' - if (str.length < 2) return '' - // Node allows for non-padded base64 strings (missing trailing ===), base64-js does not - while (str.length % 4 !== 0) { - str = str + '=' - } - return str -} - -function stringtrim (str) { - if (str.trim) return str.trim() - return str.replace(/^\s+|\s+$/g, '') -} - -function toHex (n) { - if (n < 16) return '0' + n.toString(16) - return n.toString(16) -} - -function utf8ToBytes (string, units) { - units = units || Infinity - var codePoint - var length = string.length - var leadSurrogate = null - var bytes = [] - - for (var i = 0; i < length; i++) { - codePoint = string.charCodeAt(i) - - // is surrogate component - if (codePoint > 0xD7FF && codePoint < 0xE000) { - // last char was a lead - if (!leadSurrogate) { - // no lead yet - if (codePoint > 0xDBFF) { - // unexpected trail - if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD) - continue - } else if (i + 1 === length) { - // unpaired lead - if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD) - continue - } - - // valid lead - leadSurrogate = codePoint - - continue - } - - // 2 leads in a row - if (codePoint < 0xDC00) { - if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD) - leadSurrogate = codePoint - continue - } - - // valid surrogate pair - codePoint = (leadSurrogate - 0xD800 << 10 | codePoint - 0xDC00) + 0x10000 - } else if (leadSurrogate) { - // valid bmp char, but last char was a lead - if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD) - } - - leadSurrogate = null - - // encode utf8 - if (codePoint < 0x80) { - if ((units -= 1) < 0) break - bytes.push(codePoint) - } else if (codePoint < 0x800) { - if ((units -= 2) < 0) break - bytes.push( - codePoint >> 0x6 | 0xC0, - codePoint & 0x3F | 0x80 - ) - } else if (codePoint < 0x10000) { - if ((units -= 3) < 0) break - bytes.push( - codePoint >> 0xC | 0xE0, - codePoint >> 0x6 & 0x3F | 0x80, - codePoint & 0x3F | 0x80 - ) - } else if (codePoint < 0x110000) { - if ((units -= 4) < 0) break - bytes.push( - codePoint >> 0x12 | 0xF0, - codePoint >> 0xC & 0x3F | 0x80, - codePoint >> 0x6 & 0x3F | 0x80, - codePoint & 0x3F | 0x80 - ) - } else { - throw new Error('Invalid code point') - } - } - - return bytes -} - -function asciiToBytes (str) { - var byteArray = [] - for (var i = 0; i < str.length; i++) { - // Node's code seems to be doing this and not & 0x7F.. - byteArray.push(str.charCodeAt(i) & 0xFF) - } - return byteArray -} - -function utf16leToBytes (str, units) { - var c, hi, lo - var byteArray = [] - for (var i = 0; i < str.length; i++) { - if ((units -= 2) < 0) break - - c = str.charCodeAt(i) - hi = c >> 8 - lo = c % 256 - byteArray.push(lo) - byteArray.push(hi) - } - - return byteArray -} - -function base64ToBytes (str) { - return base64.toByteArray(base64clean(str)) -} - -function blitBuffer (src, dst, offset, length) { - for (var i = 0; i < length; i++) { - if ((i + offset >= dst.length) || (i >= src.length)) break - dst[i + offset] = src[i] - } - return i -} - -}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {}) -},{"17":17,"48":48,"94":94}],48:[function(require,module,exports){ -var toString = {}.toString; - -module.exports = Array.isArray || function (arr) { - return toString.call(arr) == '[object Array]'; -}; - -},{}],49:[function(require,module,exports){ -(function (Buffer){ -var Transform = require(148).Transform -var inherits = require(97) -var StringDecoder = require(161).StringDecoder -module.exports = CipherBase -inherits(CipherBase, Transform) -function CipherBase (hashMode) { - Transform.call(this) - this.hashMode = typeof hashMode === 'string' - if (this.hashMode) { - this[hashMode] = this._finalOrDigest - } else { - this.final = this._finalOrDigest - } - this._decoder = null - this._encoding = null -} -CipherBase.prototype.update = function (data, inputEnc, outputEnc) { - if (typeof data === 'string') { - data = new Buffer(data, inputEnc) - } - var outData = this._update(data) - if (this.hashMode) { - return this - } - if (outputEnc) { - outData = this._toString(outData, outputEnc) - } - return outData -} - -CipherBase.prototype.setAutoPadding = function () {} - -CipherBase.prototype.getAuthTag = function () { - throw new Error('trying to get auth tag in unsupported state') -} - -CipherBase.prototype.setAuthTag = function () { - throw new Error('trying to set auth tag in unsupported state') -} - -CipherBase.prototype.setAAD = function () { - throw new Error('trying to set aad in unsupported state') -} - -CipherBase.prototype._transform = function (data, _, next) { - var err - try { - if (this.hashMode) { - this._update(data) - } else { - this.push(this._update(data)) - } - } catch (e) { - err = e - } finally { - next(err) - } -} -CipherBase.prototype._flush = function (done) { - var err - try { - this.push(this._final()) - } catch (e) { - err = e - } finally { - done(err) - } -} -CipherBase.prototype._finalOrDigest = function (outputEnc) { - var outData = this._final() || new Buffer('') - if (outputEnc) { - outData = this._toString(outData, outputEnc, true) - } - return outData -} - -CipherBase.prototype._toString = function (value, enc, fin) { - if (!this._decoder) { - this._decoder = new StringDecoder(enc) - this._encoding = enc - } - if (this._encoding !== enc) { - throw new Error('can\'t switch encodings') - } - var out = this._decoder.write(value) - if (fin) { - out += this._decoder.end() - } - return out -} - -}).call(this,require(47).Buffer) -},{"148":148,"161":161,"47":47,"97":97}],50:[function(require,module,exports){ -(function (Buffer){ -// Copyright Joyent, Inc. and other Node contributors. -// -// Permission is hereby granted, free of charge, to any person obtaining a -// copy of this software and associated documentation files (the -// "Software"), to deal in the Software without restriction, including -// without limitation the rights to use, copy, modify, merge, publish, -// distribute, sublicense, and/or sell copies of the Software, and to permit -// persons to whom the Software is furnished to do so, subject to the -// following conditions: -// -// The above copyright notice and this permission notice shall be included -// in all copies or substantial portions of the Software. -// -// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS -// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF -// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN -// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, -// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR -// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE -// USE OR OTHER DEALINGS IN THE SOFTWARE. - -// NOTE: These type checking functions intentionally don't use `instanceof` -// because it is fragile and can be easily faked with `Object.create()`. - -function isArray(arg) { - if (Array.isArray) { - return Array.isArray(arg); - } - return objectToString(arg) === '[object Array]'; -} -exports.isArray = isArray; - -function isBoolean(arg) { - return typeof arg === 'boolean'; -} -exports.isBoolean = isBoolean; - -function isNull(arg) { - return arg === null; -} -exports.isNull = isNull; - -function isNullOrUndefined(arg) { - return arg == null; -} -exports.isNullOrUndefined = isNullOrUndefined; - -function isNumber(arg) { - return typeof arg === 'number'; -} -exports.isNumber = isNumber; - -function isString(arg) { - return typeof arg === 'string'; -} -exports.isString = isString; - -function isSymbol(arg) { - return typeof arg === 'symbol'; -} -exports.isSymbol = isSymbol; - -function isUndefined(arg) { - return arg === void 0; -} -exports.isUndefined = isUndefined; - -function isRegExp(re) { - return objectToString(re) === '[object RegExp]'; -} -exports.isRegExp = isRegExp; - -function isObject(arg) { - return typeof arg === 'object' && arg !== null; -} -exports.isObject = isObject; - -function isDate(d) { - return objectToString(d) === '[object Date]'; -} -exports.isDate = isDate; - -function isError(e) { - return (objectToString(e) === '[object Error]' || e instanceof Error); -} -exports.isError = isError; - -function isFunction(arg) { - return typeof arg === 'function'; -} -exports.isFunction = isFunction; - -function isPrimitive(arg) { - return arg === null || - typeof arg === 'boolean' || - typeof arg === 'number' || - typeof arg === 'string' || - typeof arg === 'symbol' || // ES6 symbol - typeof arg === 'undefined'; -} -exports.isPrimitive = isPrimitive; - -exports.isBuffer = Buffer.isBuffer; - -function objectToString(o) { - return Object.prototype.toString.call(o); -} - -}).call(this,{"isBuffer":require(98)}) -},{"98":98}],51:[function(require,module,exports){ -(function (Buffer){ -var elliptic = require(69); -var BN = require(18); - -module.exports = function createECDH(curve) { - return new ECDH(curve); -}; - -var aliases = { - secp256k1: { - name: 'secp256k1', - byteLength: 32 - }, - secp224r1: { - name: 'p224', - byteLength: 28 - }, - prime256v1: { - name: 'p256', - byteLength: 32 - }, - prime192v1: { - name: 'p192', - byteLength: 24 - }, - ed25519: { - name: 'ed25519', - byteLength: 32 - }, - secp384r1: { - name: 'p384', - byteLength: 48 - }, - secp521r1: { - name: 'p521', - byteLength: 66 - } -}; - -aliases.p224 = aliases.secp224r1; -aliases.p256 = aliases.secp256r1 = aliases.prime256v1; -aliases.p192 = aliases.secp192r1 = aliases.prime192v1; -aliases.p384 = aliases.secp384r1; -aliases.p521 = aliases.secp521r1; - -function ECDH(curve) { - this.curveType = aliases[curve]; - if (!this.curveType ) { - this.curveType = { - name: curve - }; - } - this.curve = new elliptic.ec(this.curveType.name); - this.keys = void 0; -} - -ECDH.prototype.generateKeys = function (enc, format) { - this.keys = this.curve.genKeyPair(); - return this.getPublicKey(enc, format); -}; - -ECDH.prototype.computeSecret = function (other, inenc, enc) { - inenc = inenc || 'utf8'; - if (!Buffer.isBuffer(other)) { - other = new Buffer(other, inenc); - } - var otherPub = this.curve.keyFromPublic(other).getPublic(); - var out = otherPub.mul(this.keys.getPrivate()).getX(); - return formatReturnValue(out, enc, this.curveType.byteLength); -}; - -ECDH.prototype.getPublicKey = function (enc, format) { - var key = this.keys.getPublic(format === 'compressed', true); - if (format === 'hybrid') { - if (key[key.length - 1] % 2) { - key[0] = 7; - } else { - key [0] = 6; - } - } - return formatReturnValue(key, enc); -}; - -ECDH.prototype.getPrivateKey = function (enc) { - return formatReturnValue(this.keys.getPrivate(), enc); -}; - -ECDH.prototype.setPublicKey = function (pub, enc) { - enc = enc || 'utf8'; - if (!Buffer.isBuffer(pub)) { - pub = new Buffer(pub, enc); - } - this.keys._importPublic(pub); - return this; -}; - -ECDH.prototype.setPrivateKey = function (priv, enc) { - enc = enc || 'utf8'; - if (!Buffer.isBuffer(priv)) { - priv = new Buffer(priv, enc); - } - var _priv = new BN(priv); - _priv = _priv.toString(16); - this.keys._importPrivate(_priv); - return this; -}; - -function formatReturnValue(bn, enc, len) { - if (!Array.isArray(bn)) { - bn = bn.toArray(); - } - var buf = new Buffer(bn); - if (len && buf.length < len) { - var zeros = new Buffer(len - buf.length); - zeros.fill(0); - buf = Buffer.concat([zeros, buf]); - } - if (!enc) { - return buf; - } else { - return buf.toString(enc); - } -} - -}).call(this,require(47).Buffer) -},{"18":18,"47":47,"69":69}],52:[function(require,module,exports){ -(function (Buffer){ -'use strict'; -var inherits = require(97) -var md5 = require(54) -var rmd160 = require(137) -var sha = require(140) - -var Base = require(49) - -function HashNoConstructor(hash) { - Base.call(this, 'digest') - - this._hash = hash - this.buffers = [] -} - -inherits(HashNoConstructor, Base) - -HashNoConstructor.prototype._update = function (data) { - this.buffers.push(data) -} - -HashNoConstructor.prototype._final = function () { - var buf = Buffer.concat(this.buffers) - var r = this._hash(buf) - this.buffers = null - - return r -} - -function Hash(hash) { - Base.call(this, 'digest') - - this._hash = hash -} - -inherits(Hash, Base) - -Hash.prototype._update = function (data) { - this._hash.update(data) -} - -Hash.prototype._final = function () { - return this._hash.digest() -} - -module.exports = function createHash (alg) { - alg = alg.toLowerCase() - if ('md5' === alg) return new HashNoConstructor(md5) - if ('rmd160' === alg || 'ripemd160' === alg) return new HashNoConstructor(rmd160) - - return new Hash(sha(alg)) -} - -}).call(this,require(47).Buffer) -},{"137":137,"140":140,"47":47,"49":49,"54":54,"97":97}],53:[function(require,module,exports){ -(function (Buffer){ -'use strict'; -var intSize = 4; -var zeroBuffer = new Buffer(intSize); zeroBuffer.fill(0); -var chrsz = 8; - -function toArray(buf, bigEndian) { - if ((buf.length % intSize) !== 0) { - var len = buf.length + (intSize - (buf.length % intSize)); - buf = Buffer.concat([buf, zeroBuffer], len); - } - - var arr = []; - var fn = bigEndian ? buf.readInt32BE : buf.readInt32LE; - for (var i = 0; i < buf.length; i += intSize) { - arr.push(fn.call(buf, i)); - } - return arr; -} - -function toBuffer(arr, size, bigEndian) { - var buf = new Buffer(size); - var fn = bigEndian ? buf.writeInt32BE : buf.writeInt32LE; - for (var i = 0; i < arr.length; i++) { - fn.call(buf, arr[i], i * 4, true); - } - return buf; -} - -function hash(buf, fn, hashSize, bigEndian) { - if (!Buffer.isBuffer(buf)) buf = new Buffer(buf); - var arr = fn(toArray(buf, bigEndian), buf.length * chrsz); - return toBuffer(arr, hashSize, bigEndian); -} -exports.hash = hash; -}).call(this,require(47).Buffer) -},{"47":47}],54:[function(require,module,exports){ -'use strict'; -/* - * A JavaScript implementation of the RSA Data Security, Inc. MD5 Message - * Digest Algorithm, as defined in RFC 1321. - * Version 2.1 Copyright (C) Paul Johnston 1999 - 2002. - * Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet - * Distributed under the BSD License - * See http://pajhome.org.uk/crypt/md5 for more info. - */ - -var helpers = require(53); - -/* - * Calculate the MD5 of an array of little-endian words, and a bit length - */ -function core_md5(x, len) -{ - /* append padding */ - x[len >> 5] |= 0x80 << ((len) % 32); - x[(((len + 64) >>> 9) << 4) + 14] = len; - - var a = 1732584193; - var b = -271733879; - var c = -1732584194; - var d = 271733878; - - for(var i = 0; i < x.length; i += 16) - { - var olda = a; - var oldb = b; - var oldc = c; - var oldd = d; - - a = md5_ff(a, b, c, d, x[i+ 0], 7 , -680876936); - d = md5_ff(d, a, b, c, x[i+ 1], 12, -389564586); - c = md5_ff(c, d, a, b, x[i+ 2], 17, 606105819); - b = md5_ff(b, c, d, a, x[i+ 3], 22, -1044525330); - a = md5_ff(a, b, c, d, x[i+ 4], 7 , -176418897); - d = md5_ff(d, a, b, c, x[i+ 5], 12, 1200080426); - c = md5_ff(c, d, a, b, x[i+ 6], 17, -1473231341); - b = md5_ff(b, c, d, a, x[i+ 7], 22, -45705983); - a = md5_ff(a, b, c, d, x[i+ 8], 7 , 1770035416); - d = md5_ff(d, a, b, c, x[i+ 9], 12, -1958414417); - c = md5_ff(c, d, a, b, x[i+10], 17, -42063); - b = md5_ff(b, c, d, a, x[i+11], 22, -1990404162); - a = md5_ff(a, b, c, d, x[i+12], 7 , 1804603682); - d = md5_ff(d, a, b, c, x[i+13], 12, -40341101); - c = md5_ff(c, d, a, b, x[i+14], 17, -1502002290); - b = md5_ff(b, c, d, a, x[i+15], 22, 1236535329); - - a = md5_gg(a, b, c, d, x[i+ 1], 5 , -165796510); - d = md5_gg(d, a, b, c, x[i+ 6], 9 , -1069501632); - c = md5_gg(c, d, a, b, x[i+11], 14, 643717713); - b = md5_gg(b, c, d, a, x[i+ 0], 20, -373897302); - a = md5_gg(a, b, c, d, x[i+ 5], 5 , -701558691); - d = md5_gg(d, a, b, c, x[i+10], 9 , 38016083); - c = md5_gg(c, d, a, b, x[i+15], 14, -660478335); - b = md5_gg(b, c, d, a, x[i+ 4], 20, -405537848); - a = md5_gg(a, b, c, d, x[i+ 9], 5 , 568446438); - d = md5_gg(d, a, b, c, x[i+14], 9 , -1019803690); - c = md5_gg(c, d, a, b, x[i+ 3], 14, -187363961); - b = md5_gg(b, c, d, a, x[i+ 8], 20, 1163531501); - a = md5_gg(a, b, c, d, x[i+13], 5 , -1444681467); - d = md5_gg(d, a, b, c, x[i+ 2], 9 , -51403784); - c = md5_gg(c, d, a, b, x[i+ 7], 14, 1735328473); - b = md5_gg(b, c, d, a, x[i+12], 20, -1926607734); - - a = md5_hh(a, b, c, d, x[i+ 5], 4 , -378558); - d = md5_hh(d, a, b, c, x[i+ 8], 11, -2022574463); - c = md5_hh(c, d, a, b, x[i+11], 16, 1839030562); - b = md5_hh(b, c, d, a, x[i+14], 23, -35309556); - a = md5_hh(a, b, c, d, x[i+ 1], 4 , -1530992060); - d = md5_hh(d, a, b, c, x[i+ 4], 11, 1272893353); - c = md5_hh(c, d, a, b, x[i+ 7], 16, -155497632); - b = md5_hh(b, c, d, a, x[i+10], 23, -1094730640); - a = md5_hh(a, b, c, d, x[i+13], 4 , 681279174); - d = md5_hh(d, a, b, c, x[i+ 0], 11, -358537222); - c = md5_hh(c, d, a, b, x[i+ 3], 16, -722521979); - b = md5_hh(b, c, d, a, x[i+ 6], 23, 76029189); - a = md5_hh(a, b, c, d, x[i+ 9], 4 , -640364487); - d = md5_hh(d, a, b, c, x[i+12], 11, -421815835); - c = md5_hh(c, d, a, b, x[i+15], 16, 530742520); - b = md5_hh(b, c, d, a, x[i+ 2], 23, -995338651); - - a = md5_ii(a, b, c, d, x[i+ 0], 6 , -198630844); - d = md5_ii(d, a, b, c, x[i+ 7], 10, 1126891415); - c = md5_ii(c, d, a, b, x[i+14], 15, -1416354905); - b = md5_ii(b, c, d, a, x[i+ 5], 21, -57434055); - a = md5_ii(a, b, c, d, x[i+12], 6 , 1700485571); - d = md5_ii(d, a, b, c, x[i+ 3], 10, -1894986606); - c = md5_ii(c, d, a, b, x[i+10], 15, -1051523); - b = md5_ii(b, c, d, a, x[i+ 1], 21, -2054922799); - a = md5_ii(a, b, c, d, x[i+ 8], 6 , 1873313359); - d = md5_ii(d, a, b, c, x[i+15], 10, -30611744); - c = md5_ii(c, d, a, b, x[i+ 6], 15, -1560198380); - b = md5_ii(b, c, d, a, x[i+13], 21, 1309151649); - a = md5_ii(a, b, c, d, x[i+ 4], 6 , -145523070); - d = md5_ii(d, a, b, c, x[i+11], 10, -1120210379); - c = md5_ii(c, d, a, b, x[i+ 2], 15, 718787259); - b = md5_ii(b, c, d, a, x[i+ 9], 21, -343485551); - - a = safe_add(a, olda); - b = safe_add(b, oldb); - c = safe_add(c, oldc); - d = safe_add(d, oldd); - } - return Array(a, b, c, d); - -} - -/* - * These functions implement the four basic operations the algorithm uses. - */ -function md5_cmn(q, a, b, x, s, t) -{ - return safe_add(bit_rol(safe_add(safe_add(a, q), safe_add(x, t)), s),b); -} -function md5_ff(a, b, c, d, x, s, t) -{ - return md5_cmn((b & c) | ((~b) & d), a, b, x, s, t); -} -function md5_gg(a, b, c, d, x, s, t) -{ - return md5_cmn((b & d) | (c & (~d)), a, b, x, s, t); -} -function md5_hh(a, b, c, d, x, s, t) -{ - return md5_cmn(b ^ c ^ d, a, b, x, s, t); -} -function md5_ii(a, b, c, d, x, s, t) -{ - return md5_cmn(c ^ (b | (~d)), a, b, x, s, t); -} - -/* - * Add integers, wrapping at 2^32. This uses 16-bit operations internally - * to work around bugs in some JS interpreters. - */ -function safe_add(x, y) -{ - var lsw = (x & 0xFFFF) + (y & 0xFFFF); - var msw = (x >> 16) + (y >> 16) + (lsw >> 16); - return (msw << 16) | (lsw & 0xFFFF); -} - -/* - * Bitwise rotate a 32-bit number to the left. - */ -function bit_rol(num, cnt) -{ - return (num << cnt) | (num >>> (32 - cnt)); -} - -module.exports = function md5(buf) { - return helpers.hash(buf, core_md5, 16); -}; -},{"53":53}],55:[function(require,module,exports){ -(function (Buffer){ -'use strict'; -var createHash = require(52); -var inherits = require(97) - -var Transform = require(148).Transform - -var ZEROS = new Buffer(128) -ZEROS.fill(0) - -function Hmac(alg, key) { - Transform.call(this) - alg = alg.toLowerCase() - if (typeof key === 'string') { - key = new Buffer(key) - } - - var blocksize = (alg === 'sha512' || alg === 'sha384') ? 128 : 64 - - this._alg = alg - this._key = key - - if (key.length > blocksize) { - key = createHash(alg).update(key).digest() - - } else if (key.length < blocksize) { - key = Buffer.concat([key, ZEROS], blocksize) - } - - var ipad = this._ipad = new Buffer(blocksize) - var opad = this._opad = new Buffer(blocksize) - - for (var i = 0; i < blocksize; i++) { - ipad[i] = key[i] ^ 0x36 - opad[i] = key[i] ^ 0x5C - } - - this._hash = createHash(alg).update(ipad) -} - -inherits(Hmac, Transform) - -Hmac.prototype.update = function (data, enc) { - this._hash.update(data, enc) - - return this -} - -Hmac.prototype._transform = function (data, _, next) { - this._hash.update(data) - - next() -} - -Hmac.prototype._flush = function (next) { - this.push(this.digest()) - - next() -} - -Hmac.prototype.digest = function (enc) { - var h = this._hash.digest() - - return createHash(this._alg).update(this._opad).update(h).digest(enc) -} - -module.exports = function createHmac(alg, key) { - return new Hmac(alg, key) -} - -}).call(this,require(47).Buffer) -},{"148":148,"47":47,"52":52,"97":97}],56:[function(require,module,exports){ -'use strict' - -exports.randomBytes = exports.rng = exports.pseudoRandomBytes = exports.prng = require(136) -exports.createHash = exports.Hash = require(52) -exports.createHmac = exports.Hmac = require(55) - -var hashes = ['sha1', 'sha224', 'sha256', 'sha384', 'sha512', 'md5', 'rmd160'].concat(Object.keys(require(40))) -exports.getHashes = function () { - return hashes -} - -var p = require(112) -exports.pbkdf2 = p.pbkdf2 -exports.pbkdf2Sync = p.pbkdf2Sync - -var aes = require(36) -;[ - 'Cipher', - 'createCipher', - 'Cipheriv', - 'createCipheriv', - 'Decipher', - 'createDecipher', - 'Decipheriv', - 'createDecipheriv', - 'getCiphers', - 'listCiphers' -].forEach(function (key) { - exports[key] = aes[key] -}) - -var dh = require(65) -;[ - 'DiffieHellmanGroup', - 'createDiffieHellmanGroup', - 'getDiffieHellman', - 'createDiffieHellman', - 'DiffieHellman' -].forEach(function (key) { - exports[key] = dh[key] -}) - -var sign = require(41) -;[ - 'createSign', - 'Sign', - 'createVerify', - 'Verify' -].forEach(function (key) { - exports[key] = sign[key] -}) - -exports.createECDH = require(51) - -var publicEncrypt = require(130) - -;[ - 'publicEncrypt', - 'privateEncrypt', - 'publicDecrypt', - 'privateDecrypt' -].forEach(function (key) { - exports[key] = publicEncrypt[key] -}) - -// the least I can do is make error messages for the rest of the node.js/crypto api. -;[ - 'createCredentials' -].forEach(function (name) { - exports[name] = function () { - throw new Error([ - 'sorry, ' + name + ' is not implemented yet', - 'we accept pull requests', - 'https://github.com/crypto-browserify/crypto-browserify' - ].join('\n')) - } -}) - -},{"112":112,"130":130,"136":136,"36":36,"40":40,"41":41,"51":51,"52":52,"55":55,"65":65}],57:[function(require,module,exports){ - -/** - * This is the web browser implementation of `debug()`. - * - * Expose `debug()` as the module. - */ - -exports = module.exports = require(58); -exports.log = log; -exports.formatArgs = formatArgs; -exports.save = save; -exports.load = load; -exports.useColors = useColors; -exports.storage = 'undefined' != typeof chrome - && 'undefined' != typeof chrome.storage - ? chrome.storage.local - : localstorage(); - -/** - * Colors. - */ - -exports.colors = [ - 'lightseagreen', - 'forestgreen', - 'goldenrod', - 'dodgerblue', - 'darkorchid', - 'crimson' -]; - -/** - * Currently only WebKit-based Web Inspectors, Firefox >= v31, - * and the Firebug extension (any Firefox version) are known - * to support "%c" CSS customizations. - * - * TODO: add a `localStorage` variable to explicitly enable/disable colors - */ - -function useColors() { - // is webkit? http://stackoverflow.com/a/16459606/376773 - return ('WebkitAppearance' in document.documentElement.style) || - // is firebug? http://stackoverflow.com/a/398120/376773 - (window.console && (console.firebug || (console.exception && console.table))) || - // is firefox >= v31? - // https://developer.mozilla.org/en-US/docs/Tools/Web_Console#Styling_messages - (navigator.userAgent.toLowerCase().match(/firefox\/(\d+)/) && parseInt(RegExp.$1, 10) >= 31); -} - -/** - * Map %j to `JSON.stringify()`, since no Web Inspectors do that by default. - */ - -exports.formatters.j = function(v) { - return JSON.stringify(v); -}; - - -/** - * Colorize log arguments if enabled. - * - * @api public - */ - -function formatArgs() { - var args = arguments; - var useColors = this.useColors; - - args[0] = (useColors ? '%c' : '') - + this.namespace - + (useColors ? ' %c' : ' ') - + args[0] - + (useColors ? '%c ' : ' ') - + '+' + exports.humanize(this.diff); - - if (!useColors) return args; - - var c = 'color: ' + this.color; - args = [args[0], c, 'color: inherit'].concat(Array.prototype.slice.call(args, 1)); - - // the final "%c" is somewhat tricky, because there could be other - // arguments passed either before or after the %c, so we need to - // figure out the correct index to insert the CSS into - var index = 0; - var lastC = 0; - args[0].replace(/%[a-z%]/g, function(match) { - if ('%%' === match) return; - index++; - if ('%c' === match) { - // we only are interested in the *last* %c - // (the user may have provided their own) - lastC = index; - } - }); - - args.splice(lastC, 0, c); - return args; -} - -/** - * Invokes `console.log()` when available. - * No-op when `console.log` is not a "function". - * - * @api public - */ - -function log() { - // this hackery is required for IE8/9, where - // the `console.log` function doesn't have 'apply' - return 'object' === typeof console - && console.log - && Function.prototype.apply.call(console.log, console, arguments); -} - -/** - * Save `namespaces`. - * - * @param {String} namespaces - * @api private - */ - -function save(namespaces) { - try { - if (null == namespaces) { - exports.storage.removeItem('debug'); - } else { - exports.storage.debug = namespaces; - } - } catch(e) {} -} - -/** - * Load `namespaces`. - * - * @return {String} returns the previously persisted debug modes - * @api private - */ - -function load() { - var r; - try { - r = exports.storage.debug; - } catch(e) {} - return r; -} - -/** - * Enable namespaces listed in `localStorage.debug` initially. - */ - -exports.enable(load()); - -/** - * Localstorage attempts to return the localstorage. - * - * This is necessary because safari throws - * when a user disables cookies/localstorage - * and you attempt to access it. - * - * @return {LocalStorage} - * @api private - */ - -function localstorage(){ - try { - return window.localStorage; - } catch (e) {} -} - -},{"58":58}],58:[function(require,module,exports){ - -/** - * This is the common logic for both the Node.js and web browser - * implementations of `debug()`. - * - * Expose `debug()` as the module. - */ - -exports = module.exports = debug; -exports.coerce = coerce; -exports.disable = disable; -exports.enable = enable; -exports.enabled = enabled; -exports.humanize = require(107); - -/** - * The currently active debug mode names, and names to skip. - */ - -exports.names = []; -exports.skips = []; - -/** - * Map of special "%n" handling functions, for the debug "format" argument. - * - * Valid key names are a single, lowercased letter, i.e. "n". - */ - -exports.formatters = {}; - -/** - * Previously assigned color. - */ - -var prevColor = 0; - -/** - * Previous log timestamp. - */ - -var prevTime; - -/** - * Select a color. - * - * @return {Number} - * @api private - */ - -function selectColor() { - return exports.colors[prevColor++ % exports.colors.length]; -} - -/** - * Create a debugger with the given `namespace`. - * - * @param {String} namespace - * @return {Function} - * @api public - */ - -function debug(namespace) { - - // define the `disabled` version - function disabled() { - } - disabled.enabled = false; - - // define the `enabled` version - function enabled() { - - var self = enabled; - - // set `diff` timestamp - var curr = +new Date(); - var ms = curr - (prevTime || curr); - self.diff = ms; - self.prev = prevTime; - self.curr = curr; - prevTime = curr; - - // add the `color` if not set - if (null == self.useColors) self.useColors = exports.useColors(); - if (null == self.color && self.useColors) self.color = selectColor(); - - var args = Array.prototype.slice.call(arguments); - - args[0] = exports.coerce(args[0]); - - if ('string' !== typeof args[0]) { - // anything else let's inspect with %o - args = ['%o'].concat(args); - } - - // apply any `formatters` transformations - var index = 0; - args[0] = args[0].replace(/%([a-z%])/g, function(match, format) { - // if we encounter an escaped % then don't increase the array index - if (match === '%%') return match; - index++; - var formatter = exports.formatters[format]; - if ('function' === typeof formatter) { - var val = args[index]; - match = formatter.call(self, val); - - // now we need to remove `args[index]` since it's inlined in the `format` - args.splice(index, 1); - index--; - } - return match; - }); - - if ('function' === typeof exports.formatArgs) { - args = exports.formatArgs.apply(self, args); - } - var logFn = enabled.log || exports.log || console.log.bind(console); - logFn.apply(self, args); - } - enabled.enabled = true; - - var fn = exports.enabled(namespace) ? enabled : disabled; - - fn.namespace = namespace; - - return fn; -} - -/** - * Enables a debug mode by namespaces. This can include modes - * separated by a colon and wildcards. - * - * @param {String} namespaces - * @api public - */ - -function enable(namespaces) { - exports.save(namespaces); - - var split = (namespaces || '').split(/[\s,]+/); - var len = split.length; - - for (var i = 0; i < len; i++) { - if (!split[i]) continue; // ignore empty strings - namespaces = split[i].replace(/\*/g, '.*?'); - if (namespaces[0] === '-') { - exports.skips.push(new RegExp('^' + namespaces.substr(1) + '$')); - } else { - exports.names.push(new RegExp('^' + namespaces + '$')); - } - } -} - -/** - * Disable debug output. - * - * @api public - */ - -function disable() { - exports.enable(''); -} - -/** - * Returns true if the given mode name is enabled, false otherwise. - * - * @param {String} name - * @return {Boolean} - * @api public - */ - -function enabled(name) { - var i, len; - for (i = 0, len = exports.skips.length; i < len; i++) { - if (exports.skips[i].test(name)) { - return false; - } - } - for (i = 0, len = exports.names.length; i < len; i++) { - if (exports.names[i].test(name)) { - return true; - } - } - return false; -} - -/** - * Coerce `val`. - * - * @param {Mixed} val - * @return {Mixed} - * @api private - */ - -function coerce(val) { - if (val instanceof Error) return val.stack || val.message; - return val; -} - -},{"107":107}],59:[function(require,module,exports){ -'use strict'; - -exports.utils = require(64); -exports.Cipher = require(61); -exports.DES = require(62); -exports.CBC = require(60); -exports.EDE = require(63); - -},{"60":60,"61":61,"62":62,"63":63,"64":64}],60:[function(require,module,exports){ -'use strict'; - -var assert = require(106); -var inherits = require(97); - -var proto = {}; - -function CBCState(iv) { - assert.equal(iv.length, 8, 'Invalid IV length'); - - this.iv = new Array(8); - for (var i = 0; i < this.iv.length; i++) - this.iv[i] = iv[i]; -} - -function instantiate(Base) { - function CBC(options) { - Base.call(this, options); - this._cbcInit(); - } - inherits(CBC, Base); - - var keys = Object.keys(proto); - for (var i = 0; i < keys.length; i++) { - var key = keys[i]; - CBC.prototype[key] = proto[key]; - } - - CBC.create = function create(options) { - return new CBC(options); - }; - - return CBC; -} - -exports.instantiate = instantiate; - -proto._cbcInit = function _cbcInit() { - var state = new CBCState(this.options.iv); - this._cbcState = state; -}; - -proto._update = function _update(inp, inOff, out, outOff) { - var state = this._cbcState; - var superProto = this.constructor.super_.prototype; - - var iv = state.iv; - if (this.type === 'encrypt') { - for (var i = 0; i < this.blockSize; i++) - iv[i] ^= inp[inOff + i]; - - superProto._update.call(this, iv, 0, out, outOff); - - for (var i = 0; i < this.blockSize; i++) - iv[i] = out[outOff + i]; - } else { - superProto._update.call(this, inp, inOff, out, outOff); - - for (var i = 0; i < this.blockSize; i++) - out[outOff + i] ^= iv[i]; - - for (var i = 0; i < this.blockSize; i++) - iv[i] = inp[inOff + i]; - } -}; - -},{"106":106,"97":97}],61:[function(require,module,exports){ -'use strict'; - -var assert = require(106); - -function Cipher(options) { - this.options = options; - - this.type = this.options.type; - this.blockSize = 8; - this._init(); - - this.buffer = new Array(this.blockSize); - this.bufferOff = 0; -} -module.exports = Cipher; - -Cipher.prototype._init = function _init() { - // Might be overrided -}; - -Cipher.prototype.update = function update(data) { - if (data.length === 0) - return []; - - if (this.type === 'decrypt') - return this._updateDecrypt(data); - else - return this._updateEncrypt(data); -}; - -Cipher.prototype._buffer = function _buffer(data, off) { - // Append data to buffer - var min = Math.min(this.buffer.length - this.bufferOff, data.length - off); - for (var i = 0; i < min; i++) - this.buffer[this.bufferOff + i] = data[off + i]; - this.bufferOff += min; - - // Shift next - return min; -}; - -Cipher.prototype._flushBuffer = function _flushBuffer(out, off) { - this._update(this.buffer, 0, out, off); - this.bufferOff = 0; - return this.blockSize; -}; - -Cipher.prototype._updateEncrypt = function _updateEncrypt(data) { - var inputOff = 0; - var outputOff = 0; - - var count = ((this.bufferOff + data.length) / this.blockSize) | 0; - var out = new Array(count * this.blockSize); - - if (this.bufferOff !== 0) { - inputOff += this._buffer(data, inputOff); - - if (this.bufferOff === this.buffer.length) - outputOff += this._flushBuffer(out, outputOff); - } - - // Write blocks - var max = data.length - ((data.length - inputOff) % this.blockSize); - for (; inputOff < max; inputOff += this.blockSize) { - this._update(data, inputOff, out, outputOff); - outputOff += this.blockSize; - } - - // Queue rest - for (; inputOff < data.length; inputOff++, this.bufferOff++) - this.buffer[this.bufferOff] = data[inputOff]; - - return out; -}; - -Cipher.prototype._updateDecrypt = function _updateDecrypt(data) { - var inputOff = 0; - var outputOff = 0; - - var count = Math.ceil((this.bufferOff + data.length) / this.blockSize) - 1; - var out = new Array(count * this.blockSize); - - // TODO(indutny): optimize it, this is far from optimal - for (; count > 0; count--) { - inputOff += this._buffer(data, inputOff); - outputOff += this._flushBuffer(out, outputOff); - } - - // Buffer rest of the input - inputOff += this._buffer(data, inputOff); - - return out; -}; - -Cipher.prototype.final = function final(buffer) { - var first; - if (buffer) - first = this.update(buffer); - - var last; - if (this.type === 'encrypt') - last = this._finalEncrypt(); - else - last = this._finalDecrypt(); - - if (first) - return first.concat(last); - else - return last; -}; - -Cipher.prototype._pad = function _pad(buffer, off) { - if (off === 0) - return false; - - while (off < buffer.length) - buffer[off++] = 0; - - return true; -}; - -Cipher.prototype._finalEncrypt = function _finalEncrypt() { - if (!this._pad(this.buffer, this.bufferOff)) - return []; - - var out = new Array(this.blockSize); - this._update(this.buffer, 0, out, 0); - return out; -}; - -Cipher.prototype._unpad = function _unpad(buffer) { - return buffer; -}; - -Cipher.prototype._finalDecrypt = function _finalDecrypt() { - assert.equal(this.bufferOff, this.blockSize, 'Not enough data to decrypt'); - var out = new Array(this.blockSize); - this._flushBuffer(out, 0); - - return this._unpad(out); -}; - -},{"106":106}],62:[function(require,module,exports){ -'use strict'; - -var assert = require(106); -var inherits = require(97); - -var des = require(59); -var utils = des.utils; -var Cipher = des.Cipher; - -function DESState() { - this.tmp = new Array(2); - this.keys = null; -} - -function DES(options) { - Cipher.call(this, options); - - var state = new DESState(); - this._desState = state; - - this.deriveKeys(state, options.key); -} -inherits(DES, Cipher); -module.exports = DES; - -DES.create = function create(options) { - return new DES(options); -}; - -var shiftTable = [ - 1, 1, 2, 2, 2, 2, 2, 2, - 1, 2, 2, 2, 2, 2, 2, 1 -]; - -DES.prototype.deriveKeys = function deriveKeys(state, key) { - state.keys = new Array(16 * 2); - - assert.equal(key.length, this.blockSize, 'Invalid key length'); - - var kL = utils.readUInt32BE(key, 0); - var kR = utils.readUInt32BE(key, 4); - - utils.pc1(kL, kR, state.tmp, 0); - kL = state.tmp[0]; - kR = state.tmp[1]; - for (var i = 0; i < state.keys.length; i += 2) { - var shift = shiftTable[i >>> 1]; - kL = utils.r28shl(kL, shift); - kR = utils.r28shl(kR, shift); - utils.pc2(kL, kR, state.keys, i); - } -}; - -DES.prototype._update = function _update(inp, inOff, out, outOff) { - var state = this._desState; - - var l = utils.readUInt32BE(inp, inOff); - var r = utils.readUInt32BE(inp, inOff + 4); - - // Initial Permutation - utils.ip(l, r, state.tmp, 0); - l = state.tmp[0]; - r = state.tmp[1]; - - if (this.type === 'encrypt') - this._encrypt(state, l, r, state.tmp, 0); - else - this._decrypt(state, l, r, state.tmp, 0); - - l = state.tmp[0]; - r = state.tmp[1]; - - utils.writeUInt32BE(out, l, outOff); - utils.writeUInt32BE(out, r, outOff + 4); -}; - -DES.prototype._pad = function _pad(buffer, off) { - var value = buffer.length - off; - for (var i = off; i < buffer.length; i++) - buffer[i] = value; - - return true; -}; - -DES.prototype._unpad = function _unpad(buffer) { - var pad = buffer[buffer.length - 1]; - for (var i = buffer.length - pad; i < buffer.length; i++) - assert.equal(buffer[i], pad); - - return buffer.slice(0, buffer.length - pad); -}; - -DES.prototype._encrypt = function _encrypt(state, lStart, rStart, out, off) { - var l = lStart; - var r = rStart; - - // Apply f() x16 times - for (var i = 0; i < state.keys.length; i += 2) { - var keyL = state.keys[i]; - var keyR = state.keys[i + 1]; - - // f(r, k) - utils.expand(r, state.tmp, 0); - - keyL ^= state.tmp[0]; - keyR ^= state.tmp[1]; - var s = utils.substitute(keyL, keyR); - var f = utils.permute(s); - - var t = r; - r = (l ^ f) >>> 0; - l = t; - } - - // Reverse Initial Permutation - utils.rip(r, l, out, off); -}; - -DES.prototype._decrypt = function _decrypt(state, lStart, rStart, out, off) { - var l = rStart; - var r = lStart; - - // Apply f() x16 times - for (var i = state.keys.length - 2; i >= 0; i -= 2) { - var keyL = state.keys[i]; - var keyR = state.keys[i + 1]; - - // f(r, k) - utils.expand(l, state.tmp, 0); - - keyL ^= state.tmp[0]; - keyR ^= state.tmp[1]; - var s = utils.substitute(keyL, keyR); - var f = utils.permute(s); - - var t = l; - l = (r ^ f) >>> 0; - r = t; - } - - // Reverse Initial Permutation - utils.rip(l, r, out, off); -}; - -},{"106":106,"59":59,"97":97}],63:[function(require,module,exports){ -'use strict'; - -var assert = require(106); -var inherits = require(97); - -var des = require(59); -var Cipher = des.Cipher; -var DES = des.DES; - -function EDEState(type, key) { - assert.equal(key.length, 24, 'Invalid key length'); - - var k1 = key.slice(0, 8); - var k2 = key.slice(8, 16); - var k3 = key.slice(16, 24); - - if (type === 'encrypt') { - this.ciphers = [ - DES.create({ type: 'encrypt', key: k1 }), - DES.create({ type: 'decrypt', key: k2 }), - DES.create({ type: 'encrypt', key: k3 }) - ]; - } else { - this.ciphers = [ - DES.create({ type: 'decrypt', key: k3 }), - DES.create({ type: 'encrypt', key: k2 }), - DES.create({ type: 'decrypt', key: k1 }) - ]; - } -} - -function EDE(options) { - Cipher.call(this, options); - - var state = new EDEState(this.type, this.options.key); - this._edeState = state; -} -inherits(EDE, Cipher); - -module.exports = EDE; - -EDE.create = function create(options) { - return new EDE(options); -}; - -EDE.prototype._update = function _update(inp, inOff, out, outOff) { - var state = this._edeState; - - state.ciphers[0]._update(inp, inOff, out, outOff); - state.ciphers[1]._update(out, outOff, out, outOff); - state.ciphers[2]._update(out, outOff, out, outOff); -}; - -EDE.prototype._pad = DES.prototype._pad; -EDE.prototype._unpad = DES.prototype._unpad; - -},{"106":106,"59":59,"97":97}],64:[function(require,module,exports){ -'use strict'; - -exports.readUInt32BE = function readUInt32BE(bytes, off) { - var res = (bytes[0 + off] << 24) | - (bytes[1 + off] << 16) | - (bytes[2 + off] << 8) | - bytes[3 + off]; - return res >>> 0; -}; - -exports.writeUInt32BE = function writeUInt32BE(bytes, value, off) { - bytes[0 + off] = value >>> 24; - bytes[1 + off] = (value >>> 16) & 0xff; - bytes[2 + off] = (value >>> 8) & 0xff; - bytes[3 + off] = value & 0xff; -}; - -exports.ip = function ip(inL, inR, out, off) { - var outL = 0; - var outR = 0; - - for (var i = 6; i >= 0; i -= 2) { - for (var j = 0; j <= 24; j += 8) { - outL <<= 1; - outL |= (inR >>> (j + i)) & 1; - } - for (var j = 0; j <= 24; j += 8) { - outL <<= 1; - outL |= (inL >>> (j + i)) & 1; - } - } - - for (var i = 6; i >= 0; i -= 2) { - for (var j = 1; j <= 25; j += 8) { - outR <<= 1; - outR |= (inR >>> (j + i)) & 1; - } - for (var j = 1; j <= 25; j += 8) { - outR <<= 1; - outR |= (inL >>> (j + i)) & 1; - } - } - - out[off + 0] = outL >>> 0; - out[off + 1] = outR >>> 0; -}; - -exports.rip = function rip(inL, inR, out, off) { - var outL = 0; - var outR = 0; - - for (var i = 0; i < 4; i++) { - for (var j = 24; j >= 0; j -= 8) { - outL <<= 1; - outL |= (inR >>> (j + i)) & 1; - outL <<= 1; - outL |= (inL >>> (j + i)) & 1; - } - } - for (var i = 4; i < 8; i++) { - for (var j = 24; j >= 0; j -= 8) { - outR <<= 1; - outR |= (inR >>> (j + i)) & 1; - outR <<= 1; - outR |= (inL >>> (j + i)) & 1; - } - } - - out[off + 0] = outL >>> 0; - out[off + 1] = outR >>> 0; -}; - -exports.pc1 = function pc1(inL, inR, out, off) { - var outL = 0; - var outR = 0; - - // 7, 15, 23, 31, 39, 47, 55, 63 - // 6, 14, 22, 30, 39, 47, 55, 63 - // 5, 13, 21, 29, 39, 47, 55, 63 - // 4, 12, 20, 28 - for (var i = 7; i >= 5; i--) { - for (var j = 0; j <= 24; j += 8) { - outL <<= 1; - outL |= (inR >> (j + i)) & 1; - } - for (var j = 0; j <= 24; j += 8) { - outL <<= 1; - outL |= (inL >> (j + i)) & 1; - } - } - for (var j = 0; j <= 24; j += 8) { - outL <<= 1; - outL |= (inR >> (j + i)) & 1; - } - - // 1, 9, 17, 25, 33, 41, 49, 57 - // 2, 10, 18, 26, 34, 42, 50, 58 - // 3, 11, 19, 27, 35, 43, 51, 59 - // 36, 44, 52, 60 - for (var i = 1; i <= 3; i++) { - for (var j = 0; j <= 24; j += 8) { - outR <<= 1; - outR |= (inR >> (j + i)) & 1; - } - for (var j = 0; j <= 24; j += 8) { - outR <<= 1; - outR |= (inL >> (j + i)) & 1; - } - } - for (var j = 0; j <= 24; j += 8) { - outR <<= 1; - outR |= (inL >> (j + i)) & 1; - } - - out[off + 0] = outL >>> 0; - out[off + 1] = outR >>> 0; -}; - -exports.r28shl = function r28shl(num, shift) { - return ((num << shift) & 0xfffffff) | (num >>> (28 - shift)); -}; - -var pc2table = [ - // inL => outL - 14, 11, 17, 4, 27, 23, 25, 0, - 13, 22, 7, 18, 5, 9, 16, 24, - 2, 20, 12, 21, 1, 8, 15, 26, - - // inR => outR - 15, 4, 25, 19, 9, 1, 26, 16, - 5, 11, 23, 8, 12, 7, 17, 0, - 22, 3, 10, 14, 6, 20, 27, 24 -]; - -exports.pc2 = function pc2(inL, inR, out, off) { - var outL = 0; - var outR = 0; - - var len = pc2table.length >>> 1; - for (var i = 0; i < len; i++) { - outL <<= 1; - outL |= (inL >>> pc2table[i]) & 0x1; - } - for (var i = len; i < pc2table.length; i++) { - outR <<= 1; - outR |= (inR >>> pc2table[i]) & 0x1; - } - - out[off + 0] = outL >>> 0; - out[off + 1] = outR >>> 0; -}; - -exports.expand = function expand(r, out, off) { - var outL = 0; - var outR = 0; - - outL = ((r & 1) << 5) | (r >>> 27); - for (var i = 23; i >= 15; i -= 4) { - outL <<= 6; - outL |= (r >>> i) & 0x3f; - } - for (var i = 11; i >= 3; i -= 4) { - outR |= (r >>> i) & 0x3f; - outR <<= 6; - } - outR |= ((r & 0x1f) << 1) | (r >>> 31); - - out[off + 0] = outL >>> 0; - out[off + 1] = outR >>> 0; -}; - -var sTable = [ - 14, 0, 4, 15, 13, 7, 1, 4, 2, 14, 15, 2, 11, 13, 8, 1, - 3, 10, 10, 6, 6, 12, 12, 11, 5, 9, 9, 5, 0, 3, 7, 8, - 4, 15, 1, 12, 14, 8, 8, 2, 13, 4, 6, 9, 2, 1, 11, 7, - 15, 5, 12, 11, 9, 3, 7, 14, 3, 10, 10, 0, 5, 6, 0, 13, - - 15, 3, 1, 13, 8, 4, 14, 7, 6, 15, 11, 2, 3, 8, 4, 14, - 9, 12, 7, 0, 2, 1, 13, 10, 12, 6, 0, 9, 5, 11, 10, 5, - 0, 13, 14, 8, 7, 10, 11, 1, 10, 3, 4, 15, 13, 4, 1, 2, - 5, 11, 8, 6, 12, 7, 6, 12, 9, 0, 3, 5, 2, 14, 15, 9, - - 10, 13, 0, 7, 9, 0, 14, 9, 6, 3, 3, 4, 15, 6, 5, 10, - 1, 2, 13, 8, 12, 5, 7, 14, 11, 12, 4, 11, 2, 15, 8, 1, - 13, 1, 6, 10, 4, 13, 9, 0, 8, 6, 15, 9, 3, 8, 0, 7, - 11, 4, 1, 15, 2, 14, 12, 3, 5, 11, 10, 5, 14, 2, 7, 12, - - 7, 13, 13, 8, 14, 11, 3, 5, 0, 6, 6, 15, 9, 0, 10, 3, - 1, 4, 2, 7, 8, 2, 5, 12, 11, 1, 12, 10, 4, 14, 15, 9, - 10, 3, 6, 15, 9, 0, 0, 6, 12, 10, 11, 1, 7, 13, 13, 8, - 15, 9, 1, 4, 3, 5, 14, 11, 5, 12, 2, 7, 8, 2, 4, 14, - - 2, 14, 12, 11, 4, 2, 1, 12, 7, 4, 10, 7, 11, 13, 6, 1, - 8, 5, 5, 0, 3, 15, 15, 10, 13, 3, 0, 9, 14, 8, 9, 6, - 4, 11, 2, 8, 1, 12, 11, 7, 10, 1, 13, 14, 7, 2, 8, 13, - 15, 6, 9, 15, 12, 0, 5, 9, 6, 10, 3, 4, 0, 5, 14, 3, - - 12, 10, 1, 15, 10, 4, 15, 2, 9, 7, 2, 12, 6, 9, 8, 5, - 0, 6, 13, 1, 3, 13, 4, 14, 14, 0, 7, 11, 5, 3, 11, 8, - 9, 4, 14, 3, 15, 2, 5, 12, 2, 9, 8, 5, 12, 15, 3, 10, - 7, 11, 0, 14, 4, 1, 10, 7, 1, 6, 13, 0, 11, 8, 6, 13, - - 4, 13, 11, 0, 2, 11, 14, 7, 15, 4, 0, 9, 8, 1, 13, 10, - 3, 14, 12, 3, 9, 5, 7, 12, 5, 2, 10, 15, 6, 8, 1, 6, - 1, 6, 4, 11, 11, 13, 13, 8, 12, 1, 3, 4, 7, 10, 14, 7, - 10, 9, 15, 5, 6, 0, 8, 15, 0, 14, 5, 2, 9, 3, 2, 12, - - 13, 1, 2, 15, 8, 13, 4, 8, 6, 10, 15, 3, 11, 7, 1, 4, - 10, 12, 9, 5, 3, 6, 14, 11, 5, 0, 0, 14, 12, 9, 7, 2, - 7, 2, 11, 1, 4, 14, 1, 7, 9, 4, 12, 10, 14, 8, 2, 13, - 0, 15, 6, 12, 10, 9, 13, 0, 15, 3, 3, 5, 5, 6, 8, 11 -]; - -exports.substitute = function substitute(inL, inR) { - var out = 0; - for (var i = 0; i < 4; i++) { - var b = (inL >>> (18 - i * 6)) & 0x3f; - var sb = sTable[i * 0x40 + b]; - - out <<= 4; - out |= sb; - } - for (var i = 0; i < 4; i++) { - var b = (inR >>> (18 - i * 6)) & 0x3f; - var sb = sTable[4 * 0x40 + i * 0x40 + b]; - - out <<= 4; - out |= sb; - } - return out >>> 0; -}; - -var permuteTable = [ - 16, 25, 12, 11, 3, 20, 4, 15, 31, 17, 9, 6, 27, 14, 1, 22, - 30, 24, 8, 18, 0, 5, 29, 23, 13, 19, 2, 26, 10, 21, 28, 7 -]; - -exports.permute = function permute(num) { - var out = 0; - for (var i = 0; i < permuteTable.length; i++) { - out <<= 1; - out |= (num >>> permuteTable[i]) & 0x1; - } - return out >>> 0; -}; - -exports.padSplit = function padSplit(num, size, group) { - var str = num.toString(2); - while (str.length < size) - str = '0' + str; - - var out = []; - for (var i = 0; i < size; i += group) - out.push(str.slice(i, i + group)); - return out.join(' '); -}; - -},{}],65:[function(require,module,exports){ -(function (Buffer){ -var generatePrime = require(67) -var primes = require(68) - -var DH = require(66) - -function getDiffieHellman (mod) { - var prime = new Buffer(primes[mod].prime, 'hex') - var gen = new Buffer(primes[mod].gen, 'hex') - - return new DH(prime, gen) -} - -var ENCODINGS = { - 'binary': true, 'hex': true, 'base64': true -} - -function createDiffieHellman (prime, enc, generator, genc) { - if (Buffer.isBuffer(enc) || ENCODINGS[enc] === undefined) { - return createDiffieHellman(prime, 'binary', enc, generator) - } - - enc = enc || 'binary' - genc = genc || 'binary' - generator = generator || new Buffer([2]) - - if (!Buffer.isBuffer(generator)) { - generator = new Buffer(generator, genc) - } - - if (typeof prime === 'number') { - return new DH(generatePrime(prime, generator), generator, true) - } - - if (!Buffer.isBuffer(prime)) { - prime = new Buffer(prime, enc) - } - - return new DH(prime, generator, true) -} - -exports.DiffieHellmanGroup = exports.createDiffieHellmanGroup = exports.getDiffieHellman = getDiffieHellman -exports.createDiffieHellman = exports.DiffieHellman = createDiffieHellman - -}).call(this,require(47).Buffer) -},{"47":47,"66":66,"67":67,"68":68}],66:[function(require,module,exports){ -(function (Buffer){ -var BN = require(18); -var MillerRabin = require(105); -var millerRabin = new MillerRabin(); -var TWENTYFOUR = new BN(24); -var ELEVEN = new BN(11); -var TEN = new BN(10); -var THREE = new BN(3); -var SEVEN = new BN(7); -var primes = require(67); -var randomBytes = require(136); -module.exports = DH; - -function setPublicKey(pub, enc) { - enc = enc || 'utf8'; - if (!Buffer.isBuffer(pub)) { - pub = new Buffer(pub, enc); - } - this._pub = new BN(pub); - return this; -} - -function setPrivateKey(priv, enc) { - enc = enc || 'utf8'; - if (!Buffer.isBuffer(priv)) { - priv = new Buffer(priv, enc); - } - this._priv = new BN(priv); - return this; -} - -var primeCache = {}; -function checkPrime(prime, generator) { - var gen = generator.toString('hex'); - var hex = [gen, prime.toString(16)].join('_'); - if (hex in primeCache) { - return primeCache[hex]; - } - var error = 0; - - if (prime.isEven() || - !primes.simpleSieve || - !primes.fermatTest(prime) || - !millerRabin.test(prime)) { - //not a prime so +1 - error += 1; - - if (gen === '02' || gen === '05') { - // we'd be able to check the generator - // it would fail so +8 - error += 8; - } else { - //we wouldn't be able to test the generator - // so +4 - error += 4; - } - primeCache[hex] = error; - return error; - } - if (!millerRabin.test(prime.shrn(1))) { - //not a safe prime - error += 2; - } - var rem; - switch (gen) { - case '02': - if (prime.mod(TWENTYFOUR).cmp(ELEVEN)) { - // unsuidable generator - error += 8; - } - break; - case '05': - rem = prime.mod(TEN); - if (rem.cmp(THREE) && rem.cmp(SEVEN)) { - // prime mod 10 needs to equal 3 or 7 - error += 8; - } - break; - default: - error += 4; - } - primeCache[hex] = error; - return error; -} - -function DH(prime, generator, malleable) { - this.setGenerator(generator); - this.__prime = new BN(prime); - this._prime = BN.mont(this.__prime); - this._primeLen = prime.length; - this._pub = undefined; - this._priv = undefined; - this._primeCode = undefined; - if (malleable) { - this.setPublicKey = setPublicKey; - this.setPrivateKey = setPrivateKey; - } else { - this._primeCode = 8; - } -} -Object.defineProperty(DH.prototype, 'verifyError', { - enumerable: true, - get: function () { - if (typeof this._primeCode !== 'number') { - this._primeCode = checkPrime(this.__prime, this.__gen); - } - return this._primeCode; - } -}); -DH.prototype.generateKeys = function () { - if (!this._priv) { - this._priv = new BN(randomBytes(this._primeLen)); - } - this._pub = this._gen.toRed(this._prime).redPow(this._priv).fromRed(); - return this.getPublicKey(); -}; - -DH.prototype.computeSecret = function (other) { - other = new BN(other); - other = other.toRed(this._prime); - var secret = other.redPow(this._priv).fromRed(); - var out = new Buffer(secret.toArray()); - var prime = this.getPrime(); - if (out.length < prime.length) { - var front = new Buffer(prime.length - out.length); - front.fill(0); - out = Buffer.concat([front, out]); - } - return out; -}; - -DH.prototype.getPublicKey = function getPublicKey(enc) { - return formatReturnValue(this._pub, enc); -}; - -DH.prototype.getPrivateKey = function getPrivateKey(enc) { - return formatReturnValue(this._priv, enc); -}; - -DH.prototype.getPrime = function (enc) { - return formatReturnValue(this.__prime, enc); -}; - -DH.prototype.getGenerator = function (enc) { - return formatReturnValue(this._gen, enc); -}; - -DH.prototype.setGenerator = function (gen, enc) { - enc = enc || 'utf8'; - if (!Buffer.isBuffer(gen)) { - gen = new Buffer(gen, enc); - } - this.__gen = gen; - this._gen = new BN(gen); - return this; -}; - -function formatReturnValue(bn, enc) { - var buf = new Buffer(bn.toArray()); - if (!enc) { - return buf; - } else { - return buf.toString(enc); - } -} - -}).call(this,require(47).Buffer) -},{"105":105,"136":136,"18":18,"47":47,"67":67}],67:[function(require,module,exports){ -var randomBytes = require(136); -module.exports = findPrime; -findPrime.simpleSieve = simpleSieve; -findPrime.fermatTest = fermatTest; -var BN = require(18); -var TWENTYFOUR = new BN(24); -var MillerRabin = require(105); -var millerRabin = new MillerRabin(); -var ONE = new BN(1); -var TWO = new BN(2); -var FIVE = new BN(5); -var SIXTEEN = new BN(16); -var EIGHT = new BN(8); -var TEN = new BN(10); -var THREE = new BN(3); -var SEVEN = new BN(7); -var ELEVEN = new BN(11); -var FOUR = new BN(4); -var TWELVE = new BN(12); -var primes = null; - -function _getPrimes() { - if (primes !== null) - return primes; - - var limit = 0x100000; - var res = []; - res[0] = 2; - for (var i = 1, k = 3; k < limit; k += 2) { - var sqrt = Math.ceil(Math.sqrt(k)); - for (var j = 0; j < i && res[j] <= sqrt; j++) - if (k % res[j] === 0) - break; - - if (i !== j && res[j] <= sqrt) - continue; - - res[i++] = k; - } - primes = res; - return res; -} - -function simpleSieve(p) { - var primes = _getPrimes(); - - for (var i = 0; i < primes.length; i++) - if (p.modn(primes[i]) === 0) { - if (p.cmpn(primes[i]) === 0) { - return true; - } else { - return false; - } - } - - return true; -} - -function fermatTest(p) { - var red = BN.mont(p); - return TWO.toRed(red).redPow(p.subn(1)).fromRed().cmpn(1) === 0; -} - -function findPrime(bits, gen) { - if (bits < 16) { - // this is what openssl does - if (gen === 2 || gen === 5) { - return new BN([0x8c, 0x7b]); - } else { - return new BN([0x8c, 0x27]); - } - } - gen = new BN(gen); - - var num, n2; - - while (true) { - num = new BN(randomBytes(Math.ceil(bits / 8))); - while (num.bitLength() > bits) { - num.ishrn(1); - } - if (num.isEven()) { - num.iadd(ONE); - } - if (!num.testn(1)) { - num.iadd(TWO); - } - if (!gen.cmp(TWO)) { - while (num.mod(TWENTYFOUR).cmp(ELEVEN)) { - num.iadd(FOUR); - } - } else if (!gen.cmp(FIVE)) { - while (num.mod(TEN).cmp(THREE)) { - num.iadd(FOUR); - } - } - n2 = num.shrn(1); - if (simpleSieve(n2) && simpleSieve(num) && - fermatTest(n2) && fermatTest(num) && - millerRabin.test(n2) && millerRabin.test(num)) { - return num; - } - } - -} - -},{"105":105,"136":136,"18":18}],68:[function(require,module,exports){ -module.exports={ - "modp1": { - "gen": "02", - "prime": "ffffffffffffffffc90fdaa22168c234c4c6628b80dc1cd129024e088a67cc74020bbea63b139b22514a08798e3404ddef9519b3cd3a431b302b0a6df25f14374fe1356d6d51c245e485b576625e7ec6f44c42e9a63a3620ffffffffffffffff" - }, - "modp2": { - "gen": "02", - "prime": "ffffffffffffffffc90fdaa22168c234c4c6628b80dc1cd129024e088a67cc74020bbea63b139b22514a08798e3404ddef9519b3cd3a431b302b0a6df25f14374fe1356d6d51c245e485b576625e7ec6f44c42e9a637ed6b0bff5cb6f406b7edee386bfb5a899fa5ae9f24117c4b1fe649286651ece65381ffffffffffffffff" - }, - "modp5": { - "gen": "02", - "prime": "ffffffffffffffffc90fdaa22168c234c4c6628b80dc1cd129024e088a67cc74020bbea63b139b22514a08798e3404ddef9519b3cd3a431b302b0a6df25f14374fe1356d6d51c245e485b576625e7ec6f44c42e9a637ed6b0bff5cb6f406b7edee386bfb5a899fa5ae9f24117c4b1fe649286651ece45b3dc2007cb8a163bf0598da48361c55d39a69163fa8fd24cf5f83655d23dca3ad961c62f356208552bb9ed529077096966d670c354e4abc9804f1746c08ca237327ffffffffffffffff" - }, - "modp14": { - "gen": "02", - "prime": "ffffffffffffffffc90fdaa22168c234c4c6628b80dc1cd129024e088a67cc74020bbea63b139b22514a08798e3404ddef9519b3cd3a431b302b0a6df25f14374fe1356d6d51c245e485b576625e7ec6f44c42e9a637ed6b0bff5cb6f406b7edee386bfb5a899fa5ae9f24117c4b1fe649286651ece45b3dc2007cb8a163bf0598da48361c55d39a69163fa8fd24cf5f83655d23dca3ad961c62f356208552bb9ed529077096966d670c354e4abc9804f1746c08ca18217c32905e462e36ce3be39e772c180e86039b2783a2ec07a28fb5c55df06f4c52c9de2bcbf6955817183995497cea956ae515d2261898fa051015728e5a8aacaa68ffffffffffffffff" - }, - "modp15": { - "gen": "02", - "prime": "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" - }, - "modp16": { - "gen": "02", - "prime": "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" - }, - "modp17": { - "gen": "02", - "prime": "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" - }, - "modp18": { - "gen": "02", - "prime": "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" - } -} -},{}],69:[function(require,module,exports){ -'use strict'; - -var elliptic = exports; - -elliptic.version = require(85).version; -elliptic.utils = require(84); -elliptic.rand = require(19); -elliptic.hmacDRBG = require(82); -elliptic.curve = require(72); -elliptic.curves = require(75); - -// Protocols -elliptic.ec = require(76); -elliptic.eddsa = require(79); - -},{"19":19,"72":72,"75":75,"76":76,"79":79,"82":82,"84":84,"85":85}],70:[function(require,module,exports){ -'use strict'; - -var BN = require(18); -var elliptic = require(69); -var utils = elliptic.utils; -var getNAF = utils.getNAF; -var getJSF = utils.getJSF; -var assert = utils.assert; - -function BaseCurve(type, conf) { - this.type = type; - this.p = new BN(conf.p, 16); - - // Use Montgomery, when there is no fast reduction for the prime - this.red = conf.prime ? BN.red(conf.prime) : BN.mont(this.p); - - // Useful for many curves - this.zero = new BN(0).toRed(this.red); - this.one = new BN(1).toRed(this.red); - this.two = new BN(2).toRed(this.red); - - // Curve configuration, optional - this.n = conf.n && new BN(conf.n, 16); - this.g = conf.g && this.pointFromJSON(conf.g, conf.gRed); - - // Temporary arrays - this._wnafT1 = new Array(4); - this._wnafT2 = new Array(4); - this._wnafT3 = new Array(4); - this._wnafT4 = new Array(4); - - // Generalized Greg Maxwell's trick - var adjustCount = this.n && this.p.div(this.n); - if (!adjustCount || adjustCount.cmpn(100) > 0) { - this.redN = null; - } else { - this._maxwellTrick = true; - this.redN = this.n.toRed(this.red); - } -} -module.exports = BaseCurve; - -BaseCurve.prototype.point = function point() { - throw new Error('Not implemented'); -}; - -BaseCurve.prototype.validate = function validate() { - throw new Error('Not implemented'); -}; - -BaseCurve.prototype._fixedNafMul = function _fixedNafMul(p, k) { - assert(p.precomputed); - var doubles = p._getDoubles(); - - var naf = getNAF(k, 1); - var I = (1 << (doubles.step + 1)) - (doubles.step % 2 === 0 ? 2 : 1); - I /= 3; - - // Translate into more windowed form - var repr = []; - for (var j = 0; j < naf.length; j += doubles.step) { - var nafW = 0; - for (var k = j + doubles.step - 1; k >= j; k--) - nafW = (nafW << 1) + naf[k]; - repr.push(nafW); - } - - var a = this.jpoint(null, null, null); - var b = this.jpoint(null, null, null); - for (var i = I; i > 0; i--) { - for (var j = 0; j < repr.length; j++) { - var nafW = repr[j]; - if (nafW === i) - b = b.mixedAdd(doubles.points[j]); - else if (nafW === -i) - b = b.mixedAdd(doubles.points[j].neg()); - } - a = a.add(b); - } - return a.toP(); -}; - -BaseCurve.prototype._wnafMul = function _wnafMul(p, k) { - var w = 4; - - // Precompute window - var nafPoints = p._getNAFPoints(w); - w = nafPoints.wnd; - var wnd = nafPoints.points; - - // Get NAF form - var naf = getNAF(k, w); - - // Add `this`*(N+1) for every w-NAF index - var acc = this.jpoint(null, null, null); - for (var i = naf.length - 1; i >= 0; i--) { - // Count zeroes - for (var k = 0; i >= 0 && naf[i] === 0; i--) - k++; - if (i >= 0) - k++; - acc = acc.dblp(k); - - if (i < 0) - break; - var z = naf[i]; - assert(z !== 0); - if (p.type === 'affine') { - // J +- P - if (z > 0) - acc = acc.mixedAdd(wnd[(z - 1) >> 1]); - else - acc = acc.mixedAdd(wnd[(-z - 1) >> 1].neg()); - } else { - // J +- J - if (z > 0) - acc = acc.add(wnd[(z - 1) >> 1]); - else - acc = acc.add(wnd[(-z - 1) >> 1].neg()); - } - } - return p.type === 'affine' ? acc.toP() : acc; -}; - -BaseCurve.prototype._wnafMulAdd = function _wnafMulAdd(defW, - points, - coeffs, - len, - jacobianResult) { - var wndWidth = this._wnafT1; - var wnd = this._wnafT2; - var naf = this._wnafT3; - - // Fill all arrays - var max = 0; - for (var i = 0; i < len; i++) { - var p = points[i]; - var nafPoints = p._getNAFPoints(defW); - wndWidth[i] = nafPoints.wnd; - wnd[i] = nafPoints.points; - } - - // Comb small window NAFs - for (var i = len - 1; i >= 1; i -= 2) { - var a = i - 1; - var b = i; - if (wndWidth[a] !== 1 || wndWidth[b] !== 1) { - naf[a] = getNAF(coeffs[a], wndWidth[a]); - naf[b] = getNAF(coeffs[b], wndWidth[b]); - max = Math.max(naf[a].length, max); - max = Math.max(naf[b].length, max); - continue; - } - - var comb = [ - points[a], /* 1 */ - null, /* 3 */ - null, /* 5 */ - points[b] /* 7 */ - ]; - - // Try to avoid Projective points, if possible - if (points[a].y.cmp(points[b].y) === 0) { - comb[1] = points[a].add(points[b]); - comb[2] = points[a].toJ().mixedAdd(points[b].neg()); - } else if (points[a].y.cmp(points[b].y.redNeg()) === 0) { - comb[1] = points[a].toJ().mixedAdd(points[b]); - comb[2] = points[a].add(points[b].neg()); - } else { - comb[1] = points[a].toJ().mixedAdd(points[b]); - comb[2] = points[a].toJ().mixedAdd(points[b].neg()); - } - - var index = [ - -3, /* -1 -1 */ - -1, /* -1 0 */ - -5, /* -1 1 */ - -7, /* 0 -1 */ - 0, /* 0 0 */ - 7, /* 0 1 */ - 5, /* 1 -1 */ - 1, /* 1 0 */ - 3 /* 1 1 */ - ]; - - var jsf = getJSF(coeffs[a], coeffs[b]); - max = Math.max(jsf[0].length, max); - naf[a] = new Array(max); - naf[b] = new Array(max); - for (var j = 0; j < max; j++) { - var ja = jsf[0][j] | 0; - var jb = jsf[1][j] | 0; - - naf[a][j] = index[(ja + 1) * 3 + (jb + 1)]; - naf[b][j] = 0; - wnd[a] = comb; - } - } - - var acc = this.jpoint(null, null, null); - var tmp = this._wnafT4; - for (var i = max; i >= 0; i--) { - var k = 0; - - while (i >= 0) { - var zero = true; - for (var j = 0; j < len; j++) { - tmp[j] = naf[j][i] | 0; - if (tmp[j] !== 0) - zero = false; - } - if (!zero) - break; - k++; - i--; - } - if (i >= 0) - k++; - acc = acc.dblp(k); - if (i < 0) - break; - - for (var j = 0; j < len; j++) { - var z = tmp[j]; - var p; - if (z === 0) - continue; - else if (z > 0) - p = wnd[j][(z - 1) >> 1]; - else if (z < 0) - p = wnd[j][(-z - 1) >> 1].neg(); - - if (p.type === 'affine') - acc = acc.mixedAdd(p); - else - acc = acc.add(p); - } - } - // Zeroify references - for (var i = 0; i < len; i++) - wnd[i] = null; - - if (jacobianResult) - return acc; - else - return acc.toP(); -}; - -function BasePoint(curve, type) { - this.curve = curve; - this.type = type; - this.precomputed = null; -} -BaseCurve.BasePoint = BasePoint; - -BasePoint.prototype.eq = function eq(/*other*/) { - throw new Error('Not implemented'); -}; - -BasePoint.prototype.validate = function validate() { - return this.curve.validate(this); -}; - -BaseCurve.prototype.decodePoint = function decodePoint(bytes, enc) { - bytes = utils.toArray(bytes, enc); - - var len = this.p.byteLength(); - - // uncompressed, hybrid-odd, hybrid-even - if ((bytes[0] === 0x04 || bytes[0] === 0x06 || bytes[0] === 0x07) && - bytes.length - 1 === 2 * len) { - if (bytes[0] === 0x06) - assert(bytes[bytes.length - 1] % 2 === 0); - else if (bytes[0] === 0x07) - assert(bytes[bytes.length - 1] % 2 === 1); - - var res = this.point(bytes.slice(1, 1 + len), - bytes.slice(1 + len, 1 + 2 * len)); - - return res; - } else if ((bytes[0] === 0x02 || bytes[0] === 0x03) && - bytes.length - 1 === len) { - return this.pointFromX(bytes.slice(1, 1 + len), bytes[0] === 0x03); - } - throw new Error('Unknown point format'); -}; - -BasePoint.prototype.encodeCompressed = function encodeCompressed(enc) { - return this.encode(enc, true); -}; - -BasePoint.prototype._encode = function _encode(compact) { - var len = this.curve.p.byteLength(); - var x = this.getX().toArray('be', len); - - if (compact) - return [ this.getY().isEven() ? 0x02 : 0x03 ].concat(x); - - return [ 0x04 ].concat(x, this.getY().toArray('be', len)) ; -}; - -BasePoint.prototype.encode = function encode(enc, compact) { - return utils.encode(this._encode(compact), enc); -}; - -BasePoint.prototype.precompute = function precompute(power) { - if (this.precomputed) - return this; - - var precomputed = { - doubles: null, - naf: null, - beta: null - }; - precomputed.naf = this._getNAFPoints(8); - precomputed.doubles = this._getDoubles(4, power); - precomputed.beta = this._getBeta(); - this.precomputed = precomputed; - - return this; -}; - -BasePoint.prototype._hasDoubles = function _hasDoubles(k) { - if (!this.precomputed) - return false; - - var doubles = this.precomputed.doubles; - if (!doubles) - return false; - - return doubles.points.length >= Math.ceil((k.bitLength() + 1) / doubles.step); -}; - -BasePoint.prototype._getDoubles = function _getDoubles(step, power) { - if (this.precomputed && this.precomputed.doubles) - return this.precomputed.doubles; - - var doubles = [ this ]; - var acc = this; - for (var i = 0; i < power; i += step) { - for (var j = 0; j < step; j++) - acc = acc.dbl(); - doubles.push(acc); - } - return { - step: step, - points: doubles - }; -}; - -BasePoint.prototype._getNAFPoints = function _getNAFPoints(wnd) { - if (this.precomputed && this.precomputed.naf) - return this.precomputed.naf; - - var res = [ this ]; - var max = (1 << wnd) - 1; - var dbl = max === 1 ? null : this.dbl(); - for (var i = 1; i < max; i++) - res[i] = res[i - 1].add(dbl); - return { - wnd: wnd, - points: res - }; -}; - -BasePoint.prototype._getBeta = function _getBeta() { - return null; -}; - -BasePoint.prototype.dblp = function dblp(k) { - var r = this; - for (var i = 0; i < k; i++) - r = r.dbl(); - return r; -}; - -},{"18":18,"69":69}],71:[function(require,module,exports){ -'use strict'; - -var curve = require(72); -var elliptic = require(69); -var BN = require(18); -var inherits = require(97); -var Base = curve.base; - -var assert = elliptic.utils.assert; - -function EdwardsCurve(conf) { - // NOTE: Important as we are creating point in Base.call() - this.twisted = (conf.a | 0) !== 1; - this.mOneA = this.twisted && (conf.a | 0) === -1; - this.extended = this.mOneA; - - Base.call(this, 'edwards', conf); - - this.a = new BN(conf.a, 16).umod(this.red.m); - this.a = this.a.toRed(this.red); - this.c = new BN(conf.c, 16).toRed(this.red); - this.c2 = this.c.redSqr(); - this.d = new BN(conf.d, 16).toRed(this.red); - this.dd = this.d.redAdd(this.d); - - assert(!this.twisted || this.c.fromRed().cmpn(1) === 0); - this.oneC = (conf.c | 0) === 1; -} -inherits(EdwardsCurve, Base); -module.exports = EdwardsCurve; - -EdwardsCurve.prototype._mulA = function _mulA(num) { - if (this.mOneA) - return num.redNeg(); - else - return this.a.redMul(num); -}; - -EdwardsCurve.prototype._mulC = function _mulC(num) { - if (this.oneC) - return num; - else - return this.c.redMul(num); -}; - -// Just for compatibility with Short curve -EdwardsCurve.prototype.jpoint = function jpoint(x, y, z, t) { - return this.point(x, y, z, t); -}; - -EdwardsCurve.prototype.pointFromX = function pointFromX(x, odd) { - x = new BN(x, 16); - if (!x.red) - x = x.toRed(this.red); - - var x2 = x.redSqr(); - var rhs = this.c2.redSub(this.a.redMul(x2)); - var lhs = this.one.redSub(this.c2.redMul(this.d).redMul(x2)); - - var y2 = rhs.redMul(lhs.redInvm()); - var y = y2.redSqrt(); - if (y.redSqr().redSub(y2).cmp(this.zero) !== 0) - throw new Error('invalid point'); - - var isOdd = y.fromRed().isOdd(); - if (odd && !isOdd || !odd && isOdd) - y = y.redNeg(); - - return this.point(x, y); -}; - -EdwardsCurve.prototype.pointFromY = function pointFromY(y, odd) { - y = new BN(y, 16); - if (!y.red) - y = y.toRed(this.red); - - // x^2 = (y^2 - 1) / (d y^2 + 1) - var y2 = y.redSqr(); - var lhs = y2.redSub(this.one); - var rhs = y2.redMul(this.d).redAdd(this.one); - var x2 = lhs.redMul(rhs.redInvm()); - - if (x2.cmp(this.zero) === 0) { - if (odd) - throw new Error('invalid point'); - else - return this.point(this.zero, y); - } - - var x = x2.redSqrt(); - if (x.redSqr().redSub(x2).cmp(this.zero) !== 0) - throw new Error('invalid point'); - - if (x.isOdd() !== odd) - x = x.redNeg(); - - return this.point(x, y); -}; - -EdwardsCurve.prototype.validate = function validate(point) { - if (point.isInfinity()) - return true; - - // Curve: A * X^2 + Y^2 = C^2 * (1 + D * X^2 * Y^2) - point.normalize(); - - var x2 = point.x.redSqr(); - var y2 = point.y.redSqr(); - var lhs = x2.redMul(this.a).redAdd(y2); - var rhs = this.c2.redMul(this.one.redAdd(this.d.redMul(x2).redMul(y2))); - - return lhs.cmp(rhs) === 0; -}; - -function Point(curve, x, y, z, t) { - Base.BasePoint.call(this, curve, 'projective'); - if (x === null && y === null && z === null) { - this.x = this.curve.zero; - this.y = this.curve.one; - this.z = this.curve.one; - this.t = this.curve.zero; - this.zOne = true; - } else { - this.x = new BN(x, 16); - this.y = new BN(y, 16); - this.z = z ? new BN(z, 16) : this.curve.one; - this.t = t && new BN(t, 16); - if (!this.x.red) - this.x = this.x.toRed(this.curve.red); - if (!this.y.red) - this.y = this.y.toRed(this.curve.red); - if (!this.z.red) - this.z = this.z.toRed(this.curve.red); - if (this.t && !this.t.red) - this.t = this.t.toRed(this.curve.red); - this.zOne = this.z === this.curve.one; - - // Use extended coordinates - if (this.curve.extended && !this.t) { - this.t = this.x.redMul(this.y); - if (!this.zOne) - this.t = this.t.redMul(this.z.redInvm()); - } - } -} -inherits(Point, Base.BasePoint); - -EdwardsCurve.prototype.pointFromJSON = function pointFromJSON(obj) { - return Point.fromJSON(this, obj); -}; - -EdwardsCurve.prototype.point = function point(x, y, z, t) { - return new Point(this, x, y, z, t); -}; - -Point.fromJSON = function fromJSON(curve, obj) { - return new Point(curve, obj[0], obj[1], obj[2]); -}; - -Point.prototype.inspect = function inspect() { - if (this.isInfinity()) - return ''; - return ''; -}; - -Point.prototype.isInfinity = function isInfinity() { - // XXX This code assumes that zero is always zero in red - return this.x.cmpn(0) === 0 && - this.y.cmp(this.z) === 0; -}; - -Point.prototype._extDbl = function _extDbl() { - // hyperelliptic.org/EFD/g1p/auto-twisted-extended-1.html - // #doubling-dbl-2008-hwcd - // 4M + 4S - - // A = X1^2 - var a = this.x.redSqr(); - // B = Y1^2 - var b = this.y.redSqr(); - // C = 2 * Z1^2 - var c = this.z.redSqr(); - c = c.redIAdd(c); - // D = a * A - var d = this.curve._mulA(a); - // E = (X1 + Y1)^2 - A - B - var e = this.x.redAdd(this.y).redSqr().redISub(a).redISub(b); - // G = D + B - var g = d.redAdd(b); - // F = G - C - var f = g.redSub(c); - // H = D - B - var h = d.redSub(b); - // X3 = E * F - var nx = e.redMul(f); - // Y3 = G * H - var ny = g.redMul(h); - // T3 = E * H - var nt = e.redMul(h); - // Z3 = F * G - var nz = f.redMul(g); - return this.curve.point(nx, ny, nz, nt); -}; - -Point.prototype._projDbl = function _projDbl() { - // hyperelliptic.org/EFD/g1p/auto-twisted-projective.html - // #doubling-dbl-2008-bbjlp - // #doubling-dbl-2007-bl - // and others - // Generally 3M + 4S or 2M + 4S - - // B = (X1 + Y1)^2 - var b = this.x.redAdd(this.y).redSqr(); - // C = X1^2 - var c = this.x.redSqr(); - // D = Y1^2 - var d = this.y.redSqr(); - - var nx; - var ny; - var nz; - if (this.curve.twisted) { - // E = a * C - var e = this.curve._mulA(c); - // F = E + D - var f = e.redAdd(d); - if (this.zOne) { - // X3 = (B - C - D) * (F - 2) - nx = b.redSub(c).redSub(d).redMul(f.redSub(this.curve.two)); - // Y3 = F * (E - D) - ny = f.redMul(e.redSub(d)); - // Z3 = F^2 - 2 * F - nz = f.redSqr().redSub(f).redSub(f); - } else { - // H = Z1^2 - var h = this.z.redSqr(); - // J = F - 2 * H - var j = f.redSub(h).redISub(h); - // X3 = (B-C-D)*J - nx = b.redSub(c).redISub(d).redMul(j); - // Y3 = F * (E - D) - ny = f.redMul(e.redSub(d)); - // Z3 = F * J - nz = f.redMul(j); - } - } else { - // E = C + D - var e = c.redAdd(d); - // H = (c * Z1)^2 - var h = this.curve._mulC(this.c.redMul(this.z)).redSqr(); - // J = E - 2 * H - var j = e.redSub(h).redSub(h); - // X3 = c * (B - E) * J - nx = this.curve._mulC(b.redISub(e)).redMul(j); - // Y3 = c * E * (C - D) - ny = this.curve._mulC(e).redMul(c.redISub(d)); - // Z3 = E * J - nz = e.redMul(j); - } - return this.curve.point(nx, ny, nz); -}; - -Point.prototype.dbl = function dbl() { - if (this.isInfinity()) - return this; - - // Double in extended coordinates - if (this.curve.extended) - return this._extDbl(); - else - return this._projDbl(); -}; - -Point.prototype._extAdd = function _extAdd(p) { - // hyperelliptic.org/EFD/g1p/auto-twisted-extended-1.html - // #addition-add-2008-hwcd-3 - // 8M - - // A = (Y1 - X1) * (Y2 - X2) - var a = this.y.redSub(this.x).redMul(p.y.redSub(p.x)); - // B = (Y1 + X1) * (Y2 + X2) - var b = this.y.redAdd(this.x).redMul(p.y.redAdd(p.x)); - // C = T1 * k * T2 - var c = this.t.redMul(this.curve.dd).redMul(p.t); - // D = Z1 * 2 * Z2 - var d = this.z.redMul(p.z.redAdd(p.z)); - // E = B - A - var e = b.redSub(a); - // F = D - C - var f = d.redSub(c); - // G = D + C - var g = d.redAdd(c); - // H = B + A - var h = b.redAdd(a); - // X3 = E * F - var nx = e.redMul(f); - // Y3 = G * H - var ny = g.redMul(h); - // T3 = E * H - var nt = e.redMul(h); - // Z3 = F * G - var nz = f.redMul(g); - return this.curve.point(nx, ny, nz, nt); -}; - -Point.prototype._projAdd = function _projAdd(p) { - // hyperelliptic.org/EFD/g1p/auto-twisted-projective.html - // #addition-add-2008-bbjlp - // #addition-add-2007-bl - // 10M + 1S - - // A = Z1 * Z2 - var a = this.z.redMul(p.z); - // B = A^2 - var b = a.redSqr(); - // C = X1 * X2 - var c = this.x.redMul(p.x); - // D = Y1 * Y2 - var d = this.y.redMul(p.y); - // E = d * C * D - var e = this.curve.d.redMul(c).redMul(d); - // F = B - E - var f = b.redSub(e); - // G = B + E - var g = b.redAdd(e); - // X3 = A * F * ((X1 + Y1) * (X2 + Y2) - C - D) - var tmp = this.x.redAdd(this.y).redMul(p.x.redAdd(p.y)).redISub(c).redISub(d); - var nx = a.redMul(f).redMul(tmp); - var ny; - var nz; - if (this.curve.twisted) { - // Y3 = A * G * (D - a * C) - ny = a.redMul(g).redMul(d.redSub(this.curve._mulA(c))); - // Z3 = F * G - nz = f.redMul(g); - } else { - // Y3 = A * G * (D - C) - ny = a.redMul(g).redMul(d.redSub(c)); - // Z3 = c * F * G - nz = this.curve._mulC(f).redMul(g); - } - return this.curve.point(nx, ny, nz); -}; - -Point.prototype.add = function add(p) { - if (this.isInfinity()) - return p; - if (p.isInfinity()) - return this; - - if (this.curve.extended) - return this._extAdd(p); - else - return this._projAdd(p); -}; - -Point.prototype.mul = function mul(k) { - if (this._hasDoubles(k)) - return this.curve._fixedNafMul(this, k); - else - return this.curve._wnafMul(this, k); -}; - -Point.prototype.mulAdd = function mulAdd(k1, p, k2) { - return this.curve._wnafMulAdd(1, [ this, p ], [ k1, k2 ], 2, false); -}; - -Point.prototype.jmulAdd = function jmulAdd(k1, p, k2) { - return this.curve._wnafMulAdd(1, [ this, p ], [ k1, k2 ], 2, true); -}; - -Point.prototype.normalize = function normalize() { - if (this.zOne) - return this; - - // Normalize coordinates - var zi = this.z.redInvm(); - this.x = this.x.redMul(zi); - this.y = this.y.redMul(zi); - if (this.t) - this.t = this.t.redMul(zi); - this.z = this.curve.one; - this.zOne = true; - return this; -}; - -Point.prototype.neg = function neg() { - return this.curve.point(this.x.redNeg(), - this.y, - this.z, - this.t && this.t.redNeg()); -}; - -Point.prototype.getX = function getX() { - this.normalize(); - return this.x.fromRed(); -}; - -Point.prototype.getY = function getY() { - this.normalize(); - return this.y.fromRed(); -}; - -Point.prototype.eq = function eq(other) { - return this === other || - this.getX().cmp(other.getX()) === 0 && - this.getY().cmp(other.getY()) === 0; -}; - -Point.prototype.eqXToP = function eqXToP(x) { - var rx = x.toRed(this.curve.red).redMul(this.z); - if (this.x.cmp(rx) === 0) - return true; - - var xc = x.clone(); - var t = this.curve.redN.redMul(this.z); - for (;;) { - xc.iadd(this.curve.n); - if (xc.cmp(this.curve.p) >= 0) - return false; - - rx.redIAdd(t); - if (this.x.cmp(rx) === 0) - return true; - } - return false; -}; - -// Compatibility with BaseCurve -Point.prototype.toP = Point.prototype.normalize; -Point.prototype.mixedAdd = Point.prototype.add; - -},{"18":18,"69":69,"72":72,"97":97}],72:[function(require,module,exports){ -'use strict'; - -var curve = exports; - -curve.base = require(70); -curve.short = require(74); -curve.mont = require(73); -curve.edwards = require(71); - -},{"70":70,"71":71,"73":73,"74":74}],73:[function(require,module,exports){ -'use strict'; - -var curve = require(72); -var BN = require(18); -var inherits = require(97); -var Base = curve.base; - -var elliptic = require(69); -var utils = elliptic.utils; - -function MontCurve(conf) { - Base.call(this, 'mont', conf); - - this.a = new BN(conf.a, 16).toRed(this.red); - this.b = new BN(conf.b, 16).toRed(this.red); - this.i4 = new BN(4).toRed(this.red).redInvm(); - this.two = new BN(2).toRed(this.red); - this.a24 = this.i4.redMul(this.a.redAdd(this.two)); -} -inherits(MontCurve, Base); -module.exports = MontCurve; - -MontCurve.prototype.validate = function validate(point) { - var x = point.normalize().x; - var x2 = x.redSqr(); - var rhs = x2.redMul(x).redAdd(x2.redMul(this.a)).redAdd(x); - var y = rhs.redSqrt(); - - return y.redSqr().cmp(rhs) === 0; -}; - -function Point(curve, x, z) { - Base.BasePoint.call(this, curve, 'projective'); - if (x === null && z === null) { - this.x = this.curve.one; - this.z = this.curve.zero; - } else { - this.x = new BN(x, 16); - this.z = new BN(z, 16); - if (!this.x.red) - this.x = this.x.toRed(this.curve.red); - if (!this.z.red) - this.z = this.z.toRed(this.curve.red); - } -} -inherits(Point, Base.BasePoint); - -MontCurve.prototype.decodePoint = function decodePoint(bytes, enc) { - return this.point(utils.toArray(bytes, enc), 1); -}; - -MontCurve.prototype.point = function point(x, z) { - return new Point(this, x, z); -}; - -MontCurve.prototype.pointFromJSON = function pointFromJSON(obj) { - return Point.fromJSON(this, obj); -}; - -Point.prototype.precompute = function precompute() { - // No-op -}; - -Point.prototype._encode = function _encode() { - return this.getX().toArray('be', this.curve.p.byteLength()); -}; - -Point.fromJSON = function fromJSON(curve, obj) { - return new Point(curve, obj[0], obj[1] || curve.one); -}; - -Point.prototype.inspect = function inspect() { - if (this.isInfinity()) - return ''; - return ''; -}; - -Point.prototype.isInfinity = function isInfinity() { - // XXX This code assumes that zero is always zero in red - return this.z.cmpn(0) === 0; -}; - -Point.prototype.dbl = function dbl() { - // http://hyperelliptic.org/EFD/g1p/auto-montgom-xz.html#doubling-dbl-1987-m-3 - // 2M + 2S + 4A - - // A = X1 + Z1 - var a = this.x.redAdd(this.z); - // AA = A^2 - var aa = a.redSqr(); - // B = X1 - Z1 - var b = this.x.redSub(this.z); - // BB = B^2 - var bb = b.redSqr(); - // C = AA - BB - var c = aa.redSub(bb); - // X3 = AA * BB - var nx = aa.redMul(bb); - // Z3 = C * (BB + A24 * C) - var nz = c.redMul(bb.redAdd(this.curve.a24.redMul(c))); - return this.curve.point(nx, nz); -}; - -Point.prototype.add = function add() { - throw new Error('Not supported on Montgomery curve'); -}; - -Point.prototype.diffAdd = function diffAdd(p, diff) { - // http://hyperelliptic.org/EFD/g1p/auto-montgom-xz.html#diffadd-dadd-1987-m-3 - // 4M + 2S + 6A - - // A = X2 + Z2 - var a = this.x.redAdd(this.z); - // B = X2 - Z2 - var b = this.x.redSub(this.z); - // C = X3 + Z3 - var c = p.x.redAdd(p.z); - // D = X3 - Z3 - var d = p.x.redSub(p.z); - // DA = D * A - var da = d.redMul(a); - // CB = C * B - var cb = c.redMul(b); - // X5 = Z1 * (DA + CB)^2 - var nx = diff.z.redMul(da.redAdd(cb).redSqr()); - // Z5 = X1 * (DA - CB)^2 - var nz = diff.x.redMul(da.redISub(cb).redSqr()); - return this.curve.point(nx, nz); -}; - -Point.prototype.mul = function mul(k) { - var t = k.clone(); - var a = this; // (N / 2) * Q + Q - var b = this.curve.point(null, null); // (N / 2) * Q - var c = this; // Q - - for (var bits = []; t.cmpn(0) !== 0; t.iushrn(1)) - bits.push(t.andln(1)); - - for (var i = bits.length - 1; i >= 0; i--) { - if (bits[i] === 0) { - // N * Q + Q = ((N / 2) * Q + Q)) + (N / 2) * Q - a = a.diffAdd(b, c); - // N * Q = 2 * ((N / 2) * Q + Q)) - b = b.dbl(); - } else { - // N * Q = ((N / 2) * Q + Q) + ((N / 2) * Q) - b = a.diffAdd(b, c); - // N * Q + Q = 2 * ((N / 2) * Q + Q) - a = a.dbl(); - } - } - return b; -}; - -Point.prototype.mulAdd = function mulAdd() { - throw new Error('Not supported on Montgomery curve'); -}; - -Point.prototype.jumlAdd = function jumlAdd() { - throw new Error('Not supported on Montgomery curve'); -}; - -Point.prototype.eq = function eq(other) { - return this.getX().cmp(other.getX()) === 0; -}; - -Point.prototype.normalize = function normalize() { - this.x = this.x.redMul(this.z.redInvm()); - this.z = this.curve.one; - return this; -}; - -Point.prototype.getX = function getX() { - // Normalize coordinates - this.normalize(); - - return this.x.fromRed(); -}; - -},{"18":18,"69":69,"72":72,"97":97}],74:[function(require,module,exports){ -'use strict'; - -var curve = require(72); -var elliptic = require(69); -var BN = require(18); -var inherits = require(97); -var Base = curve.base; - -var assert = elliptic.utils.assert; - -function ShortCurve(conf) { - Base.call(this, 'short', conf); - - this.a = new BN(conf.a, 16).toRed(this.red); - this.b = new BN(conf.b, 16).toRed(this.red); - this.tinv = this.two.redInvm(); - - this.zeroA = this.a.fromRed().cmpn(0) === 0; - this.threeA = this.a.fromRed().sub(this.p).cmpn(-3) === 0; - - // If the curve is endomorphic, precalculate beta and lambda - this.endo = this._getEndomorphism(conf); - this._endoWnafT1 = new Array(4); - this._endoWnafT2 = new Array(4); -} -inherits(ShortCurve, Base); -module.exports = ShortCurve; - -ShortCurve.prototype._getEndomorphism = function _getEndomorphism(conf) { - // No efficient endomorphism - if (!this.zeroA || !this.g || !this.n || this.p.modn(3) !== 1) - return; - - // Compute beta and lambda, that lambda * P = (beta * Px; Py) - var beta; - var lambda; - if (conf.beta) { - beta = new BN(conf.beta, 16).toRed(this.red); - } else { - var betas = this._getEndoRoots(this.p); - // Choose the smallest beta - beta = betas[0].cmp(betas[1]) < 0 ? betas[0] : betas[1]; - beta = beta.toRed(this.red); - } - if (conf.lambda) { - lambda = new BN(conf.lambda, 16); - } else { - // Choose the lambda that is matching selected beta - var lambdas = this._getEndoRoots(this.n); - if (this.g.mul(lambdas[0]).x.cmp(this.g.x.redMul(beta)) === 0) { - lambda = lambdas[0]; - } else { - lambda = lambdas[1]; - assert(this.g.mul(lambda).x.cmp(this.g.x.redMul(beta)) === 0); - } - } - - // Get basis vectors, used for balanced length-two representation - var basis; - if (conf.basis) { - basis = conf.basis.map(function(vec) { - return { - a: new BN(vec.a, 16), - b: new BN(vec.b, 16) - }; - }); - } else { - basis = this._getEndoBasis(lambda); - } - - return { - beta: beta, - lambda: lambda, - basis: basis - }; -}; - -ShortCurve.prototype._getEndoRoots = function _getEndoRoots(num) { - // Find roots of for x^2 + x + 1 in F - // Root = (-1 +- Sqrt(-3)) / 2 - // - var red = num === this.p ? this.red : BN.mont(num); - var tinv = new BN(2).toRed(red).redInvm(); - var ntinv = tinv.redNeg(); - - var s = new BN(3).toRed(red).redNeg().redSqrt().redMul(tinv); - - var l1 = ntinv.redAdd(s).fromRed(); - var l2 = ntinv.redSub(s).fromRed(); - return [ l1, l2 ]; -}; - -ShortCurve.prototype._getEndoBasis = function _getEndoBasis(lambda) { - // aprxSqrt >= sqrt(this.n) - var aprxSqrt = this.n.ushrn(Math.floor(this.n.bitLength() / 2)); - - // 3.74 - // Run EGCD, until r(L + 1) < aprxSqrt - var u = lambda; - var v = this.n.clone(); - var x1 = new BN(1); - var y1 = new BN(0); - var x2 = new BN(0); - var y2 = new BN(1); - - // NOTE: all vectors are roots of: a + b * lambda = 0 (mod n) - var a0; - var b0; - // First vector - var a1; - var b1; - // Second vector - var a2; - var b2; - - var prevR; - var i = 0; - var r; - var x; - while (u.cmpn(0) !== 0) { - var q = v.div(u); - r = v.sub(q.mul(u)); - x = x2.sub(q.mul(x1)); - var y = y2.sub(q.mul(y1)); - - if (!a1 && r.cmp(aprxSqrt) < 0) { - a0 = prevR.neg(); - b0 = x1; - a1 = r.neg(); - b1 = x; - } else if (a1 && ++i === 2) { - break; - } - prevR = r; - - v = u; - u = r; - x2 = x1; - x1 = x; - y2 = y1; - y1 = y; - } - a2 = r.neg(); - b2 = x; - - var len1 = a1.sqr().add(b1.sqr()); - var len2 = a2.sqr().add(b2.sqr()); - if (len2.cmp(len1) >= 0) { - a2 = a0; - b2 = b0; - } - - // Normalize signs - if (a1.negative) { - a1 = a1.neg(); - b1 = b1.neg(); - } - if (a2.negative) { - a2 = a2.neg(); - b2 = b2.neg(); - } - - return [ - { a: a1, b: b1 }, - { a: a2, b: b2 } - ]; -}; - -ShortCurve.prototype._endoSplit = function _endoSplit(k) { - var basis = this.endo.basis; - var v1 = basis[0]; - var v2 = basis[1]; - - var c1 = v2.b.mul(k).divRound(this.n); - var c2 = v1.b.neg().mul(k).divRound(this.n); - - var p1 = c1.mul(v1.a); - var p2 = c2.mul(v2.a); - var q1 = c1.mul(v1.b); - var q2 = c2.mul(v2.b); - - // Calculate answer - var k1 = k.sub(p1).sub(p2); - var k2 = q1.add(q2).neg(); - return { k1: k1, k2: k2 }; -}; - -ShortCurve.prototype.pointFromX = function pointFromX(x, odd) { - x = new BN(x, 16); - if (!x.red) - x = x.toRed(this.red); - - var y2 = x.redSqr().redMul(x).redIAdd(x.redMul(this.a)).redIAdd(this.b); - var y = y2.redSqrt(); - if (y.redSqr().redSub(y2).cmp(this.zero) !== 0) - throw new Error('invalid point'); - - // XXX Is there any way to tell if the number is odd without converting it - // to non-red form? - var isOdd = y.fromRed().isOdd(); - if (odd && !isOdd || !odd && isOdd) - y = y.redNeg(); - - return this.point(x, y); -}; - -ShortCurve.prototype.validate = function validate(point) { - if (point.inf) - return true; - - var x = point.x; - var y = point.y; - - var ax = this.a.redMul(x); - var rhs = x.redSqr().redMul(x).redIAdd(ax).redIAdd(this.b); - return y.redSqr().redISub(rhs).cmpn(0) === 0; -}; - -ShortCurve.prototype._endoWnafMulAdd = - function _endoWnafMulAdd(points, coeffs, jacobianResult) { - var npoints = this._endoWnafT1; - var ncoeffs = this._endoWnafT2; - for (var i = 0; i < points.length; i++) { - var split = this._endoSplit(coeffs[i]); - var p = points[i]; - var beta = p._getBeta(); - - if (split.k1.negative) { - split.k1.ineg(); - p = p.neg(true); - } - if (split.k2.negative) { - split.k2.ineg(); - beta = beta.neg(true); - } - - npoints[i * 2] = p; - npoints[i * 2 + 1] = beta; - ncoeffs[i * 2] = split.k1; - ncoeffs[i * 2 + 1] = split.k2; - } - var res = this._wnafMulAdd(1, npoints, ncoeffs, i * 2, jacobianResult); - - // Clean-up references to points and coefficients - for (var j = 0; j < i * 2; j++) { - npoints[j] = null; - ncoeffs[j] = null; - } - return res; -}; - -function Point(curve, x, y, isRed) { - Base.BasePoint.call(this, curve, 'affine'); - if (x === null && y === null) { - this.x = null; - this.y = null; - this.inf = true; - } else { - this.x = new BN(x, 16); - this.y = new BN(y, 16); - // Force redgomery representation when loading from JSON - if (isRed) { - this.x.forceRed(this.curve.red); - this.y.forceRed(this.curve.red); - } - if (!this.x.red) - this.x = this.x.toRed(this.curve.red); - if (!this.y.red) - this.y = this.y.toRed(this.curve.red); - this.inf = false; - } -} -inherits(Point, Base.BasePoint); - -ShortCurve.prototype.point = function point(x, y, isRed) { - return new Point(this, x, y, isRed); -}; - -ShortCurve.prototype.pointFromJSON = function pointFromJSON(obj, red) { - return Point.fromJSON(this, obj, red); -}; - -Point.prototype._getBeta = function _getBeta() { - if (!this.curve.endo) - return; - - var pre = this.precomputed; - if (pre && pre.beta) - return pre.beta; - - var beta = this.curve.point(this.x.redMul(this.curve.endo.beta), this.y); - if (pre) { - var curve = this.curve; - var endoMul = function(p) { - return curve.point(p.x.redMul(curve.endo.beta), p.y); - }; - pre.beta = beta; - beta.precomputed = { - beta: null, - naf: pre.naf && { - wnd: pre.naf.wnd, - points: pre.naf.points.map(endoMul) - }, - doubles: pre.doubles && { - step: pre.doubles.step, - points: pre.doubles.points.map(endoMul) - } - }; - } - return beta; -}; - -Point.prototype.toJSON = function toJSON() { - if (!this.precomputed) - return [ this.x, this.y ]; - - return [ this.x, this.y, this.precomputed && { - doubles: this.precomputed.doubles && { - step: this.precomputed.doubles.step, - points: this.precomputed.doubles.points.slice(1) - }, - naf: this.precomputed.naf && { - wnd: this.precomputed.naf.wnd, - points: this.precomputed.naf.points.slice(1) - } - } ]; -}; - -Point.fromJSON = function fromJSON(curve, obj, red) { - if (typeof obj === 'string') - obj = JSON.parse(obj); - var res = curve.point(obj[0], obj[1], red); - if (!obj[2]) - return res; - - function obj2point(obj) { - return curve.point(obj[0], obj[1], red); - } - - var pre = obj[2]; - res.precomputed = { - beta: null, - doubles: pre.doubles && { - step: pre.doubles.step, - points: [ res ].concat(pre.doubles.points.map(obj2point)) - }, - naf: pre.naf && { - wnd: pre.naf.wnd, - points: [ res ].concat(pre.naf.points.map(obj2point)) - } - }; - return res; -}; - -Point.prototype.inspect = function inspect() { - if (this.isInfinity()) - return ''; - return ''; -}; - -Point.prototype.isInfinity = function isInfinity() { - return this.inf; -}; - -Point.prototype.add = function add(p) { - // O + P = P - if (this.inf) - return p; - - // P + O = P - if (p.inf) - return this; - - // P + P = 2P - if (this.eq(p)) - return this.dbl(); - - // P + (-P) = O - if (this.neg().eq(p)) - return this.curve.point(null, null); - - // P + Q = O - if (this.x.cmp(p.x) === 0) - return this.curve.point(null, null); - - var c = this.y.redSub(p.y); - if (c.cmpn(0) !== 0) - c = c.redMul(this.x.redSub(p.x).redInvm()); - var nx = c.redSqr().redISub(this.x).redISub(p.x); - var ny = c.redMul(this.x.redSub(nx)).redISub(this.y); - return this.curve.point(nx, ny); -}; - -Point.prototype.dbl = function dbl() { - if (this.inf) - return this; - - // 2P = O - var ys1 = this.y.redAdd(this.y); - if (ys1.cmpn(0) === 0) - return this.curve.point(null, null); - - var a = this.curve.a; - - var x2 = this.x.redSqr(); - var dyinv = ys1.redInvm(); - var c = x2.redAdd(x2).redIAdd(x2).redIAdd(a).redMul(dyinv); - - var nx = c.redSqr().redISub(this.x.redAdd(this.x)); - var ny = c.redMul(this.x.redSub(nx)).redISub(this.y); - return this.curve.point(nx, ny); -}; - -Point.prototype.getX = function getX() { - return this.x.fromRed(); -}; - -Point.prototype.getY = function getY() { - return this.y.fromRed(); -}; - -Point.prototype.mul = function mul(k) { - k = new BN(k, 16); - - if (this._hasDoubles(k)) - return this.curve._fixedNafMul(this, k); - else if (this.curve.endo) - return this.curve._endoWnafMulAdd([ this ], [ k ]); - else - return this.curve._wnafMul(this, k); -}; - -Point.prototype.mulAdd = function mulAdd(k1, p2, k2) { - var points = [ this, p2 ]; - var coeffs = [ k1, k2 ]; - if (this.curve.endo) - return this.curve._endoWnafMulAdd(points, coeffs); - else - return this.curve._wnafMulAdd(1, points, coeffs, 2); -}; - -Point.prototype.jmulAdd = function jmulAdd(k1, p2, k2) { - var points = [ this, p2 ]; - var coeffs = [ k1, k2 ]; - if (this.curve.endo) - return this.curve._endoWnafMulAdd(points, coeffs, true); - else - return this.curve._wnafMulAdd(1, points, coeffs, 2, true); -}; - -Point.prototype.eq = function eq(p) { - return this === p || - this.inf === p.inf && - (this.inf || this.x.cmp(p.x) === 0 && this.y.cmp(p.y) === 0); -}; - -Point.prototype.neg = function neg(_precompute) { - if (this.inf) - return this; - - var res = this.curve.point(this.x, this.y.redNeg()); - if (_precompute && this.precomputed) { - var pre = this.precomputed; - var negate = function(p) { - return p.neg(); - }; - res.precomputed = { - naf: pre.naf && { - wnd: pre.naf.wnd, - points: pre.naf.points.map(negate) - }, - doubles: pre.doubles && { - step: pre.doubles.step, - points: pre.doubles.points.map(negate) - } - }; - } - return res; -}; - -Point.prototype.toJ = function toJ() { - if (this.inf) - return this.curve.jpoint(null, null, null); - - var res = this.curve.jpoint(this.x, this.y, this.curve.one); - return res; -}; - -function JPoint(curve, x, y, z) { - Base.BasePoint.call(this, curve, 'jacobian'); - if (x === null && y === null && z === null) { - this.x = this.curve.one; - this.y = this.curve.one; - this.z = new BN(0); - } else { - this.x = new BN(x, 16); - this.y = new BN(y, 16); - this.z = new BN(z, 16); - } - if (!this.x.red) - this.x = this.x.toRed(this.curve.red); - if (!this.y.red) - this.y = this.y.toRed(this.curve.red); - if (!this.z.red) - this.z = this.z.toRed(this.curve.red); - - this.zOne = this.z === this.curve.one; -} -inherits(JPoint, Base.BasePoint); - -ShortCurve.prototype.jpoint = function jpoint(x, y, z) { - return new JPoint(this, x, y, z); -}; - -JPoint.prototype.toP = function toP() { - if (this.isInfinity()) - return this.curve.point(null, null); - - var zinv = this.z.redInvm(); - var zinv2 = zinv.redSqr(); - var ax = this.x.redMul(zinv2); - var ay = this.y.redMul(zinv2).redMul(zinv); - - return this.curve.point(ax, ay); -}; - -JPoint.prototype.neg = function neg() { - return this.curve.jpoint(this.x, this.y.redNeg(), this.z); -}; - -JPoint.prototype.add = function add(p) { - // O + P = P - if (this.isInfinity()) - return p; - - // P + O = P - if (p.isInfinity()) - return this; - - // 12M + 4S + 7A - var pz2 = p.z.redSqr(); - var z2 = this.z.redSqr(); - var u1 = this.x.redMul(pz2); - var u2 = p.x.redMul(z2); - var s1 = this.y.redMul(pz2.redMul(p.z)); - var s2 = p.y.redMul(z2.redMul(this.z)); - - var h = u1.redSub(u2); - var r = s1.redSub(s2); - if (h.cmpn(0) === 0) { - if (r.cmpn(0) !== 0) - return this.curve.jpoint(null, null, null); - else - return this.dbl(); - } - - var h2 = h.redSqr(); - var h3 = h2.redMul(h); - var v = u1.redMul(h2); - - var nx = r.redSqr().redIAdd(h3).redISub(v).redISub(v); - var ny = r.redMul(v.redISub(nx)).redISub(s1.redMul(h3)); - var nz = this.z.redMul(p.z).redMul(h); - - return this.curve.jpoint(nx, ny, nz); -}; - -JPoint.prototype.mixedAdd = function mixedAdd(p) { - // O + P = P - if (this.isInfinity()) - return p.toJ(); - - // P + O = P - if (p.isInfinity()) - return this; - - // 8M + 3S + 7A - var z2 = this.z.redSqr(); - var u1 = this.x; - var u2 = p.x.redMul(z2); - var s1 = this.y; - var s2 = p.y.redMul(z2).redMul(this.z); - - var h = u1.redSub(u2); - var r = s1.redSub(s2); - if (h.cmpn(0) === 0) { - if (r.cmpn(0) !== 0) - return this.curve.jpoint(null, null, null); - else - return this.dbl(); - } - - var h2 = h.redSqr(); - var h3 = h2.redMul(h); - var v = u1.redMul(h2); - - var nx = r.redSqr().redIAdd(h3).redISub(v).redISub(v); - var ny = r.redMul(v.redISub(nx)).redISub(s1.redMul(h3)); - var nz = this.z.redMul(h); - - return this.curve.jpoint(nx, ny, nz); -}; - -JPoint.prototype.dblp = function dblp(pow) { - if (pow === 0) - return this; - if (this.isInfinity()) - return this; - if (!pow) - return this.dbl(); - - if (this.curve.zeroA || this.curve.threeA) { - var r = this; - for (var i = 0; i < pow; i++) - r = r.dbl(); - return r; - } - - // 1M + 2S + 1A + N * (4S + 5M + 8A) - // N = 1 => 6M + 6S + 9A - var a = this.curve.a; - var tinv = this.curve.tinv; - - var jx = this.x; - var jy = this.y; - var jz = this.z; - var jz4 = jz.redSqr().redSqr(); - - // Reuse results - var jyd = jy.redAdd(jy); - for (var i = 0; i < pow; i++) { - var jx2 = jx.redSqr(); - var jyd2 = jyd.redSqr(); - var jyd4 = jyd2.redSqr(); - var c = jx2.redAdd(jx2).redIAdd(jx2).redIAdd(a.redMul(jz4)); - - var t1 = jx.redMul(jyd2); - var nx = c.redSqr().redISub(t1.redAdd(t1)); - var t2 = t1.redISub(nx); - var dny = c.redMul(t2); - dny = dny.redIAdd(dny).redISub(jyd4); - var nz = jyd.redMul(jz); - if (i + 1 < pow) - jz4 = jz4.redMul(jyd4); - - jx = nx; - jz = nz; - jyd = dny; - } - - return this.curve.jpoint(jx, jyd.redMul(tinv), jz); -}; - -JPoint.prototype.dbl = function dbl() { - if (this.isInfinity()) - return this; - - if (this.curve.zeroA) - return this._zeroDbl(); - else if (this.curve.threeA) - return this._threeDbl(); - else - return this._dbl(); -}; - -JPoint.prototype._zeroDbl = function _zeroDbl() { - var nx; - var ny; - var nz; - // Z = 1 - if (this.zOne) { - // hyperelliptic.org/EFD/g1p/auto-shortw-jacobian-0.html - // #doubling-mdbl-2007-bl - // 1M + 5S + 14A - - // XX = X1^2 - var xx = this.x.redSqr(); - // YY = Y1^2 - var yy = this.y.redSqr(); - // YYYY = YY^2 - var yyyy = yy.redSqr(); - // S = 2 * ((X1 + YY)^2 - XX - YYYY) - var s = this.x.redAdd(yy).redSqr().redISub(xx).redISub(yyyy); - s = s.redIAdd(s); - // M = 3 * XX + a; a = 0 - var m = xx.redAdd(xx).redIAdd(xx); - // T = M ^ 2 - 2*S - var t = m.redSqr().redISub(s).redISub(s); - - // 8 * YYYY - var yyyy8 = yyyy.redIAdd(yyyy); - yyyy8 = yyyy8.redIAdd(yyyy8); - yyyy8 = yyyy8.redIAdd(yyyy8); - - // X3 = T - nx = t; - // Y3 = M * (S - T) - 8 * YYYY - ny = m.redMul(s.redISub(t)).redISub(yyyy8); - // Z3 = 2*Y1 - nz = this.y.redAdd(this.y); - } else { - // hyperelliptic.org/EFD/g1p/auto-shortw-jacobian-0.html - // #doubling-dbl-2009-l - // 2M + 5S + 13A - - // A = X1^2 - var a = this.x.redSqr(); - // B = Y1^2 - var b = this.y.redSqr(); - // C = B^2 - var c = b.redSqr(); - // D = 2 * ((X1 + B)^2 - A - C) - var d = this.x.redAdd(b).redSqr().redISub(a).redISub(c); - d = d.redIAdd(d); - // E = 3 * A - var e = a.redAdd(a).redIAdd(a); - // F = E^2 - var f = e.redSqr(); - - // 8 * C - var c8 = c.redIAdd(c); - c8 = c8.redIAdd(c8); - c8 = c8.redIAdd(c8); - - // X3 = F - 2 * D - nx = f.redISub(d).redISub(d); - // Y3 = E * (D - X3) - 8 * C - ny = e.redMul(d.redISub(nx)).redISub(c8); - // Z3 = 2 * Y1 * Z1 - nz = this.y.redMul(this.z); - nz = nz.redIAdd(nz); - } - - return this.curve.jpoint(nx, ny, nz); -}; - -JPoint.prototype._threeDbl = function _threeDbl() { - var nx; - var ny; - var nz; - // Z = 1 - if (this.zOne) { - // hyperelliptic.org/EFD/g1p/auto-shortw-jacobian-3.html - // #doubling-mdbl-2007-bl - // 1M + 5S + 15A - - // XX = X1^2 - var xx = this.x.redSqr(); - // YY = Y1^2 - var yy = this.y.redSqr(); - // YYYY = YY^2 - var yyyy = yy.redSqr(); - // S = 2 * ((X1 + YY)^2 - XX - YYYY) - var s = this.x.redAdd(yy).redSqr().redISub(xx).redISub(yyyy); - s = s.redIAdd(s); - // M = 3 * XX + a - var m = xx.redAdd(xx).redIAdd(xx).redIAdd(this.curve.a); - // T = M^2 - 2 * S - var t = m.redSqr().redISub(s).redISub(s); - // X3 = T - nx = t; - // Y3 = M * (S - T) - 8 * YYYY - var yyyy8 = yyyy.redIAdd(yyyy); - yyyy8 = yyyy8.redIAdd(yyyy8); - yyyy8 = yyyy8.redIAdd(yyyy8); - ny = m.redMul(s.redISub(t)).redISub(yyyy8); - // Z3 = 2 * Y1 - nz = this.y.redAdd(this.y); - } else { - // hyperelliptic.org/EFD/g1p/auto-shortw-jacobian-3.html#doubling-dbl-2001-b - // 3M + 5S - - // delta = Z1^2 - var delta = this.z.redSqr(); - // gamma = Y1^2 - var gamma = this.y.redSqr(); - // beta = X1 * gamma - var beta = this.x.redMul(gamma); - // alpha = 3 * (X1 - delta) * (X1 + delta) - var alpha = this.x.redSub(delta).redMul(this.x.redAdd(delta)); - alpha = alpha.redAdd(alpha).redIAdd(alpha); - // X3 = alpha^2 - 8 * beta - var beta4 = beta.redIAdd(beta); - beta4 = beta4.redIAdd(beta4); - var beta8 = beta4.redAdd(beta4); - nx = alpha.redSqr().redISub(beta8); - // Z3 = (Y1 + Z1)^2 - gamma - delta - nz = this.y.redAdd(this.z).redSqr().redISub(gamma).redISub(delta); - // Y3 = alpha * (4 * beta - X3) - 8 * gamma^2 - var ggamma8 = gamma.redSqr(); - ggamma8 = ggamma8.redIAdd(ggamma8); - ggamma8 = ggamma8.redIAdd(ggamma8); - ggamma8 = ggamma8.redIAdd(ggamma8); - ny = alpha.redMul(beta4.redISub(nx)).redISub(ggamma8); - } - - return this.curve.jpoint(nx, ny, nz); -}; - -JPoint.prototype._dbl = function _dbl() { - var a = this.curve.a; - - // 4M + 6S + 10A - var jx = this.x; - var jy = this.y; - var jz = this.z; - var jz4 = jz.redSqr().redSqr(); - - var jx2 = jx.redSqr(); - var jy2 = jy.redSqr(); - - var c = jx2.redAdd(jx2).redIAdd(jx2).redIAdd(a.redMul(jz4)); - - var jxd4 = jx.redAdd(jx); - jxd4 = jxd4.redIAdd(jxd4); - var t1 = jxd4.redMul(jy2); - var nx = c.redSqr().redISub(t1.redAdd(t1)); - var t2 = t1.redISub(nx); - - var jyd8 = jy2.redSqr(); - jyd8 = jyd8.redIAdd(jyd8); - jyd8 = jyd8.redIAdd(jyd8); - jyd8 = jyd8.redIAdd(jyd8); - var ny = c.redMul(t2).redISub(jyd8); - var nz = jy.redAdd(jy).redMul(jz); - - return this.curve.jpoint(nx, ny, nz); -}; - -JPoint.prototype.trpl = function trpl() { - if (!this.curve.zeroA) - return this.dbl().add(this); - - // hyperelliptic.org/EFD/g1p/auto-shortw-jacobian-0.html#tripling-tpl-2007-bl - // 5M + 10S + ... - - // XX = X1^2 - var xx = this.x.redSqr(); - // YY = Y1^2 - var yy = this.y.redSqr(); - // ZZ = Z1^2 - var zz = this.z.redSqr(); - // YYYY = YY^2 - var yyyy = yy.redSqr(); - // M = 3 * XX + a * ZZ2; a = 0 - var m = xx.redAdd(xx).redIAdd(xx); - // MM = M^2 - var mm = m.redSqr(); - // E = 6 * ((X1 + YY)^2 - XX - YYYY) - MM - var e = this.x.redAdd(yy).redSqr().redISub(xx).redISub(yyyy); - e = e.redIAdd(e); - e = e.redAdd(e).redIAdd(e); - e = e.redISub(mm); - // EE = E^2 - var ee = e.redSqr(); - // T = 16*YYYY - var t = yyyy.redIAdd(yyyy); - t = t.redIAdd(t); - t = t.redIAdd(t); - t = t.redIAdd(t); - // U = (M + E)^2 - MM - EE - T - var u = m.redIAdd(e).redSqr().redISub(mm).redISub(ee).redISub(t); - // X3 = 4 * (X1 * EE - 4 * YY * U) - var yyu4 = yy.redMul(u); - yyu4 = yyu4.redIAdd(yyu4); - yyu4 = yyu4.redIAdd(yyu4); - var nx = this.x.redMul(ee).redISub(yyu4); - nx = nx.redIAdd(nx); - nx = nx.redIAdd(nx); - // Y3 = 8 * Y1 * (U * (T - U) - E * EE) - var ny = this.y.redMul(u.redMul(t.redISub(u)).redISub(e.redMul(ee))); - ny = ny.redIAdd(ny); - ny = ny.redIAdd(ny); - ny = ny.redIAdd(ny); - // Z3 = (Z1 + E)^2 - ZZ - EE - var nz = this.z.redAdd(e).redSqr().redISub(zz).redISub(ee); - - return this.curve.jpoint(nx, ny, nz); -}; - -JPoint.prototype.mul = function mul(k, kbase) { - k = new BN(k, kbase); - - return this.curve._wnafMul(this, k); -}; - -JPoint.prototype.eq = function eq(p) { - if (p.type === 'affine') - return this.eq(p.toJ()); - - if (this === p) - return true; - - // x1 * z2^2 == x2 * z1^2 - var z2 = this.z.redSqr(); - var pz2 = p.z.redSqr(); - if (this.x.redMul(pz2).redISub(p.x.redMul(z2)).cmpn(0) !== 0) - return false; - - // y1 * z2^3 == y2 * z1^3 - var z3 = z2.redMul(this.z); - var pz3 = pz2.redMul(p.z); - return this.y.redMul(pz3).redISub(p.y.redMul(z3)).cmpn(0) === 0; -}; - -JPoint.prototype.eqXToP = function eqXToP(x) { - var zs = this.z.redSqr(); - var rx = x.toRed(this.curve.red).redMul(zs); - if (this.x.cmp(rx) === 0) - return true; - - var xc = x.clone(); - var t = this.curve.redN.redMul(zs); - for (;;) { - xc.iadd(this.curve.n); - if (xc.cmp(this.curve.p) >= 0) - return false; - - rx.redIAdd(t); - if (this.x.cmp(rx) === 0) - return true; - } - return false; -}; - -JPoint.prototype.inspect = function inspect() { - if (this.isInfinity()) - return ''; - return ''; -}; - -JPoint.prototype.isInfinity = function isInfinity() { - // XXX This code assumes that zero is always zero in red - return this.z.cmpn(0) === 0; -}; - -},{"18":18,"69":69,"72":72,"97":97}],75:[function(require,module,exports){ -'use strict'; - -var curves = exports; - -var hash = require(88); -var elliptic = require(69); - -var assert = elliptic.utils.assert; - -function PresetCurve(options) { - if (options.type === 'short') - this.curve = new elliptic.curve.short(options); - else if (options.type === 'edwards') - this.curve = new elliptic.curve.edwards(options); - else - this.curve = new elliptic.curve.mont(options); - this.g = this.curve.g; - this.n = this.curve.n; - this.hash = options.hash; - - assert(this.g.validate(), 'Invalid curve'); - assert(this.g.mul(this.n).isInfinity(), 'Invalid curve, G*N != O'); -} -curves.PresetCurve = PresetCurve; - -function defineCurve(name, options) { - Object.defineProperty(curves, name, { - configurable: true, - enumerable: true, - get: function() { - var curve = new PresetCurve(options); - Object.defineProperty(curves, name, { - configurable: true, - enumerable: true, - value: curve - }); - return curve; - } - }); -} - -defineCurve('p192', { - type: 'short', - prime: 'p192', - p: 'ffffffff ffffffff ffffffff fffffffe ffffffff ffffffff', - a: 'ffffffff ffffffff ffffffff fffffffe ffffffff fffffffc', - b: '64210519 e59c80e7 0fa7e9ab 72243049 feb8deec c146b9b1', - n: 'ffffffff ffffffff ffffffff 99def836 146bc9b1 b4d22831', - hash: hash.sha256, - gRed: false, - g: [ - '188da80e b03090f6 7cbf20eb 43a18800 f4ff0afd 82ff1012', - '07192b95 ffc8da78 631011ed 6b24cdd5 73f977a1 1e794811' - ] -}); - -defineCurve('p224', { - type: 'short', - prime: 'p224', - p: 'ffffffff ffffffff ffffffff ffffffff 00000000 00000000 00000001', - a: 'ffffffff ffffffff ffffffff fffffffe ffffffff ffffffff fffffffe', - b: 'b4050a85 0c04b3ab f5413256 5044b0b7 d7bfd8ba 270b3943 2355ffb4', - n: 'ffffffff ffffffff ffffffff ffff16a2 e0b8f03e 13dd2945 5c5c2a3d', - hash: hash.sha256, - gRed: false, - g: [ - 'b70e0cbd 6bb4bf7f 321390b9 4a03c1d3 56c21122 343280d6 115c1d21', - 'bd376388 b5f723fb 4c22dfe6 cd4375a0 5a074764 44d58199 85007e34' - ] -}); - -defineCurve('p256', { - type: 'short', - prime: null, - p: 'ffffffff 00000001 00000000 00000000 00000000 ffffffff ffffffff ffffffff', - a: 'ffffffff 00000001 00000000 00000000 00000000 ffffffff ffffffff fffffffc', - b: '5ac635d8 aa3a93e7 b3ebbd55 769886bc 651d06b0 cc53b0f6 3bce3c3e 27d2604b', - n: 'ffffffff 00000000 ffffffff ffffffff bce6faad a7179e84 f3b9cac2 fc632551', - hash: hash.sha256, - gRed: false, - g: [ - '6b17d1f2 e12c4247 f8bce6e5 63a440f2 77037d81 2deb33a0 f4a13945 d898c296', - '4fe342e2 fe1a7f9b 8ee7eb4a 7c0f9e16 2bce3357 6b315ece cbb64068 37bf51f5' - ] -}); - -defineCurve('p384', { - type: 'short', - prime: null, - p: 'ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ' + - 'fffffffe ffffffff 00000000 00000000 ffffffff', - a: 'ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ' + - 'fffffffe ffffffff 00000000 00000000 fffffffc', - b: 'b3312fa7 e23ee7e4 988e056b e3f82d19 181d9c6e fe814112 0314088f ' + - '5013875a c656398d 8a2ed19d 2a85c8ed d3ec2aef', - n: 'ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff c7634d81 ' + - 'f4372ddf 581a0db2 48b0a77a ecec196a ccc52973', - hash: hash.sha384, - gRed: false, - g: [ - 'aa87ca22 be8b0537 8eb1c71e f320ad74 6e1d3b62 8ba79b98 59f741e0 82542a38 ' + - '5502f25d bf55296c 3a545e38 72760ab7', - '3617de4a 96262c6f 5d9e98bf 9292dc29 f8f41dbd 289a147c e9da3113 b5f0b8c0 ' + - '0a60b1ce 1d7e819d 7a431d7c 90ea0e5f' - ] -}); - -defineCurve('p521', { - type: 'short', - prime: null, - p: '000001ff ffffffff ffffffff ffffffff ffffffff ffffffff ' + - 'ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ' + - 'ffffffff ffffffff ffffffff ffffffff ffffffff', - a: '000001ff ffffffff ffffffff ffffffff ffffffff ffffffff ' + - 'ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ' + - 'ffffffff ffffffff ffffffff ffffffff fffffffc', - b: '00000051 953eb961 8e1c9a1f 929a21a0 b68540ee a2da725b ' + - '99b315f3 b8b48991 8ef109e1 56193951 ec7e937b 1652c0bd ' + - '3bb1bf07 3573df88 3d2c34f1 ef451fd4 6b503f00', - n: '000001ff ffffffff ffffffff ffffffff ffffffff ffffffff ' + - 'ffffffff ffffffff fffffffa 51868783 bf2f966b 7fcc0148 ' + - 'f709a5d0 3bb5c9b8 899c47ae bb6fb71e 91386409', - hash: hash.sha512, - gRed: false, - g: [ - '000000c6 858e06b7 0404e9cd 9e3ecb66 2395b442 9c648139 ' + - '053fb521 f828af60 6b4d3dba a14b5e77 efe75928 fe1dc127 ' + - 'a2ffa8de 3348b3c1 856a429b f97e7e31 c2e5bd66', - '00000118 39296a78 9a3bc004 5c8a5fb4 2c7d1bd9 98f54449 ' + - '579b4468 17afbd17 273e662c 97ee7299 5ef42640 c550b901 ' + - '3fad0761 353c7086 a272c240 88be9476 9fd16650' - ] -}); - -defineCurve('curve25519', { - type: 'mont', - prime: 'p25519', - p: '7fffffffffffffff ffffffffffffffff ffffffffffffffff ffffffffffffffed', - a: '76d06', - b: '1', - n: '1000000000000000 0000000000000000 14def9dea2f79cd6 5812631a5cf5d3ed', - hash: hash.sha256, - gRed: false, - g: [ - '9' - ] -}); - -defineCurve('ed25519', { - type: 'edwards', - prime: 'p25519', - p: '7fffffffffffffff ffffffffffffffff ffffffffffffffff ffffffffffffffed', - a: '-1', - c: '1', - // -121665 * (121666^(-1)) (mod P) - d: '52036cee2b6ffe73 8cc740797779e898 00700a4d4141d8ab 75eb4dca135978a3', - n: '1000000000000000 0000000000000000 14def9dea2f79cd6 5812631a5cf5d3ed', - hash: hash.sha256, - gRed: false, - g: [ - '216936d3cd6e53fec0a4e231fdd6dc5c692cc7609525a7b2c9562d608f25d51a', - - // 4/5 - '6666666666666666666666666666666666666666666666666666666666666658' - ] -}); - -var pre; -try { - pre = require(83); -} catch (e) { - pre = undefined; -} - -defineCurve('secp256k1', { - type: 'short', - prime: 'k256', - p: 'ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff fffffffe fffffc2f', - a: '0', - b: '7', - n: 'ffffffff ffffffff ffffffff fffffffe baaedce6 af48a03b bfd25e8c d0364141', - h: '1', - hash: hash.sha256, - - // Precomputed endomorphism - beta: '7ae96a2b657c07106e64479eac3434e99cf0497512f58995c1396c28719501ee', - lambda: '5363ad4cc05c30e0a5261c028812645a122e22ea20816678df02967c1b23bd72', - basis: [ - { - a: '3086d221a7d46bcde86c90e49284eb15', - b: '-e4437ed6010e88286f547fa90abfe4c3' - }, - { - a: '114ca50f7a8e2f3f657c1108d9d44cfd8', - b: '3086d221a7d46bcde86c90e49284eb15' - } - ], - - gRed: false, - g: [ - '79be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798', - '483ada7726a3c4655da4fbfc0e1108a8fd17b448a68554199c47d08ffb10d4b8', - pre - ] -}); - -},{"69":69,"83":83,"88":88}],76:[function(require,module,exports){ -'use strict'; - -var BN = require(18); -var elliptic = require(69); -var utils = elliptic.utils; -var assert = utils.assert; - -var KeyPair = require(77); -var Signature = require(78); - -function EC(options) { - if (!(this instanceof EC)) - return new EC(options); - - // Shortcut `elliptic.ec(curve-name)` - if (typeof options === 'string') { - assert(elliptic.curves.hasOwnProperty(options), 'Unknown curve ' + options); - - options = elliptic.curves[options]; - } - - // Shortcut for `elliptic.ec(elliptic.curves.curveName)` - if (options instanceof elliptic.curves.PresetCurve) - options = { curve: options }; - - this.curve = options.curve.curve; - this.n = this.curve.n; - this.nh = this.n.ushrn(1); - this.g = this.curve.g; - - // Point on curve - this.g = options.curve.g; - this.g.precompute(options.curve.n.bitLength() + 1); - - // Hash for function for DRBG - this.hash = options.hash || options.curve.hash; -} -module.exports = EC; - -EC.prototype.keyPair = function keyPair(options) { - return new KeyPair(this, options); -}; - -EC.prototype.keyFromPrivate = function keyFromPrivate(priv, enc) { - return KeyPair.fromPrivate(this, priv, enc); -}; - -EC.prototype.keyFromPublic = function keyFromPublic(pub, enc) { - return KeyPair.fromPublic(this, pub, enc); -}; - -EC.prototype.genKeyPair = function genKeyPair(options) { - if (!options) - options = {}; - - // Instantiate Hmac_DRBG - var drbg = new elliptic.hmacDRBG({ - hash: this.hash, - pers: options.pers, - entropy: options.entropy || elliptic.rand(this.hash.hmacStrength), - nonce: this.n.toArray() - }); - - var bytes = this.n.byteLength(); - var ns2 = this.n.sub(new BN(2)); - do { - var priv = new BN(drbg.generate(bytes)); - if (priv.cmp(ns2) > 0) - continue; - - priv.iaddn(1); - return this.keyFromPrivate(priv); - } while (true); -}; - -EC.prototype._truncateToN = function truncateToN(msg, truncOnly) { - var delta = msg.byteLength() * 8 - this.n.bitLength(); - if (delta > 0) - msg = msg.ushrn(delta); - if (!truncOnly && msg.cmp(this.n) >= 0) - return msg.sub(this.n); - else - return msg; -}; - -EC.prototype.sign = function sign(msg, key, enc, options) { - if (typeof enc === 'object') { - options = enc; - enc = null; - } - if (!options) - options = {}; - - key = this.keyFromPrivate(key, enc); - msg = this._truncateToN(new BN(msg, 16)); - - // Zero-extend key to provide enough entropy - var bytes = this.n.byteLength(); - var bkey = key.getPrivate().toArray('be', bytes); - - // Zero-extend nonce to have the same byte size as N - var nonce = msg.toArray('be', bytes); - - // Instantiate Hmac_DRBG - var drbg = new elliptic.hmacDRBG({ - hash: this.hash, - entropy: bkey, - nonce: nonce, - pers: options.pers, - persEnc: options.persEnc - }); - - // Number of bytes to generate - var ns1 = this.n.sub(new BN(1)); - - for (var iter = 0; true; iter++) { - var k = options.k ? - options.k(iter) : - new BN(drbg.generate(this.n.byteLength())); - k = this._truncateToN(k, true); - if (k.cmpn(1) <= 0 || k.cmp(ns1) >= 0) - continue; - - var kp = this.g.mul(k); - if (kp.isInfinity()) - continue; - - var kpX = kp.getX(); - var r = kpX.umod(this.n); - if (r.cmpn(0) === 0) - continue; - - var s = k.invm(this.n).mul(r.mul(key.getPrivate()).iadd(msg)); - s = s.umod(this.n); - if (s.cmpn(0) === 0) - continue; - - var recoveryParam = (kp.getY().isOdd() ? 1 : 0) | - (kpX.cmp(r) !== 0 ? 2 : 0); - - // Use complement of `s`, if it is > `n / 2` - if (options.canonical && s.cmp(this.nh) > 0) { - s = this.n.sub(s); - recoveryParam ^= 1; - } - - return new Signature({ r: r, s: s, recoveryParam: recoveryParam }); - } -}; - -EC.prototype.verify = function verify(msg, signature, key, enc) { - msg = this._truncateToN(new BN(msg, 16)); - key = this.keyFromPublic(key, enc); - signature = new Signature(signature, 'hex'); - - // Perform primitive values validation - var r = signature.r; - var s = signature.s; - if (r.cmpn(1) < 0 || r.cmp(this.n) >= 0) - return false; - if (s.cmpn(1) < 0 || s.cmp(this.n) >= 0) - return false; - - // Validate signature - var sinv = s.invm(this.n); - var u1 = sinv.mul(msg).umod(this.n); - var u2 = sinv.mul(r).umod(this.n); - - if (!this.curve._maxwellTrick) { - var p = this.g.mulAdd(u1, key.getPublic(), u2); - if (p.isInfinity()) - return false; - - return p.getX().umod(this.n).cmp(r) === 0; - } - - // NOTE: Greg Maxwell's trick, inspired by: - // https://git.io/vad3K - - var p = this.g.jmulAdd(u1, key.getPublic(), u2); - if (p.isInfinity()) - return false; - - // Compare `p.x` of Jacobian point with `r`, - // this will do `p.x == r * p.z^2` instead of multiplying `p.x` by the - // inverse of `p.z^2` - return p.eqXToP(r); -}; - -EC.prototype.recoverPubKey = function(msg, signature, j, enc) { - assert((3 & j) === j, 'The recovery param is more than two bits'); - signature = new Signature(signature, enc); - - var n = this.n; - var e = new BN(msg); - var r = signature.r; - var s = signature.s; - - // A set LSB signifies that the y-coordinate is odd - var isYOdd = j & 1; - var isSecondKey = j >> 1; - if (r.cmp(this.curve.p.umod(this.curve.n)) >= 0 && isSecondKey) - throw new Error('Unable to find sencond key candinate'); - - // 1.1. Let x = r + jn. - if (isSecondKey) - r = this.curve.pointFromX(r.add(this.curve.n), isYOdd); - else - r = this.curve.pointFromX(r, isYOdd); - - var rInv = signature.r.invm(n); - var s1 = n.sub(e).mul(rInv).umod(n); - var s2 = s.mul(rInv).umod(n); - - // 1.6.1 Compute Q = r^-1 (sR - eG) - // Q = r^-1 (sR + -eG) - return this.g.mulAdd(s1, r, s2); -}; - -EC.prototype.getKeyRecoveryParam = function(e, signature, Q, enc) { - signature = new Signature(signature, enc); - if (signature.recoveryParam !== null) - return signature.recoveryParam; - - for (var i = 0; i < 4; i++) { - var Qprime; - try { - Qprime = this.recoverPubKey(e, signature, i); - } catch (e) { - continue; - } - - if (Qprime.eq(Q)) - return i; - } - throw new Error('Unable to find valid recovery factor'); -}; - -},{"18":18,"69":69,"77":77,"78":78}],77:[function(require,module,exports){ -'use strict'; - -var BN = require(18); -var elliptic = require(69); -var utils = elliptic.utils; -var assert = utils.assert; - -function KeyPair(ec, options) { - this.ec = ec; - this.priv = null; - this.pub = null; - - // KeyPair(ec, { priv: ..., pub: ... }) - if (options.priv) - this._importPrivate(options.priv, options.privEnc); - if (options.pub) - this._importPublic(options.pub, options.pubEnc); -} -module.exports = KeyPair; - -KeyPair.fromPublic = function fromPublic(ec, pub, enc) { - if (pub instanceof KeyPair) - return pub; - - return new KeyPair(ec, { - pub: pub, - pubEnc: enc - }); -}; - -KeyPair.fromPrivate = function fromPrivate(ec, priv, enc) { - if (priv instanceof KeyPair) - return priv; - - return new KeyPair(ec, { - priv: priv, - privEnc: enc - }); -}; - -KeyPair.prototype.validate = function validate() { - var pub = this.getPublic(); - - if (pub.isInfinity()) - return { result: false, reason: 'Invalid public key' }; - if (!pub.validate()) - return { result: false, reason: 'Public key is not a point' }; - if (!pub.mul(this.ec.curve.n).isInfinity()) - return { result: false, reason: 'Public key * N != O' }; - - return { result: true, reason: null }; -}; - -KeyPair.prototype.getPublic = function getPublic(compact, enc) { - // compact is optional argument - if (typeof compact === 'string') { - enc = compact; - compact = null; - } - - if (!this.pub) - this.pub = this.ec.g.mul(this.priv); - - if (!enc) - return this.pub; - - return this.pub.encode(enc, compact); -}; - -KeyPair.prototype.getPrivate = function getPrivate(enc) { - if (enc === 'hex') - return this.priv.toString(16, 2); - else - return this.priv; -}; - -KeyPair.prototype._importPrivate = function _importPrivate(key, enc) { - this.priv = new BN(key, enc || 16); - - // Ensure that the priv won't be bigger than n, otherwise we may fail - // in fixed multiplication method - this.priv = this.priv.umod(this.ec.curve.n); -}; - -KeyPair.prototype._importPublic = function _importPublic(key, enc) { - if (key.x || key.y) { - // Montgomery points only have an `x` coordinate. - // Weierstrass/Edwards points on the other hand have both `x` and - // `y` coordinates. - if (this.ec.curve.type === 'mont') { - assert(key.x, 'Need x coordinate'); - } else if (this.ec.curve.type === 'short' || - this.ec.curve.type === 'edwards') { - assert(key.x && key.y, 'Need both x and y coordinate'); - } - this.pub = this.ec.curve.point(key.x, key.y); - return; - } - this.pub = this.ec.curve.decodePoint(key, enc); -}; - -// ECDH -KeyPair.prototype.derive = function derive(pub) { - return pub.mul(this.priv).getX(); -}; - -// ECDSA -KeyPair.prototype.sign = function sign(msg, enc, options) { - return this.ec.sign(msg, this, enc, options); -}; - -KeyPair.prototype.verify = function verify(msg, signature) { - return this.ec.verify(msg, signature, this); -}; - -KeyPair.prototype.inspect = function inspect() { - return ''; -}; - -},{"18":18,"69":69}],78:[function(require,module,exports){ -'use strict'; - -var BN = require(18); - -var elliptic = require(69); -var utils = elliptic.utils; -var assert = utils.assert; - -function Signature(options, enc) { - if (options instanceof Signature) - return options; - - if (this._importDER(options, enc)) - return; - - assert(options.r && options.s, 'Signature without r or s'); - this.r = new BN(options.r, 16); - this.s = new BN(options.s, 16); - if (options.recoveryParam === undefined) - this.recoveryParam = null; - else - this.recoveryParam = options.recoveryParam; -} -module.exports = Signature; - -function Position() { - this.place = 0; -} - -function getLength(buf, p) { - var initial = buf[p.place++]; - if (!(initial & 0x80)) { - return initial; - } - var octetLen = initial & 0xf; - var val = 0; - for (var i = 0, off = p.place; i < octetLen; i++, off++) { - val <<= 8; - val |= buf[off]; - } - p.place = off; - return val; -} - -function rmPadding(buf) { - var i = 0; - var len = buf.length - 1; - while (!buf[i] && !(buf[i + 1] & 0x80) && i < len) { - i++; - } - if (i === 0) { - return buf; - } - return buf.slice(i); -} - -Signature.prototype._importDER = function _importDER(data, enc) { - data = utils.toArray(data, enc); - var p = new Position(); - if (data[p.place++] !== 0x30) { - return false; - } - var len = getLength(data, p); - if ((len + p.place) !== data.length) { - return false; - } - if (data[p.place++] !== 0x02) { - return false; - } - var rlen = getLength(data, p); - var r = data.slice(p.place, rlen + p.place); - p.place += rlen; - if (data[p.place++] !== 0x02) { - return false; - } - var slen = getLength(data, p); - if (data.length !== slen + p.place) { - return false; - } - var s = data.slice(p.place, slen + p.place); - if (r[0] === 0 && (r[1] & 0x80)) { - r = r.slice(1); - } - if (s[0] === 0 && (s[1] & 0x80)) { - s = s.slice(1); - } - - this.r = new BN(r); - this.s = new BN(s); - this.recoveryParam = null; - - return true; -}; - -function constructLength(arr, len) { - if (len < 0x80) { - arr.push(len); - return; - } - var octets = 1 + (Math.log(len) / Math.LN2 >>> 3); - arr.push(octets | 0x80); - while (--octets) { - arr.push((len >>> (octets << 3)) & 0xff); - } - arr.push(len); -} - -Signature.prototype.toDER = function toDER(enc) { - var r = this.r.toArray(); - var s = this.s.toArray(); - - // Pad values - if (r[0] & 0x80) - r = [ 0 ].concat(r); - // Pad values - if (s[0] & 0x80) - s = [ 0 ].concat(s); - - r = rmPadding(r); - s = rmPadding(s); - - while (!s[0] && !(s[1] & 0x80)) { - s = s.slice(1); - } - var arr = [ 0x02 ]; - constructLength(arr, r.length); - arr = arr.concat(r); - arr.push(0x02); - constructLength(arr, s.length); - var backHalf = arr.concat(s); - var res = [ 0x30 ]; - constructLength(res, backHalf.length); - res = res.concat(backHalf); - return utils.encode(res, enc); -}; - -},{"18":18,"69":69}],79:[function(require,module,exports){ -'use strict'; - -var hash = require(88); -var elliptic = require(69); -var utils = elliptic.utils; -var assert = utils.assert; -var parseBytes = utils.parseBytes; -var KeyPair = require(80); -var Signature = require(81); - -function EDDSA(curve) { - assert(curve === 'ed25519', 'only tested with ed25519 so far'); - - if (!(this instanceof EDDSA)) - return new EDDSA(curve); - - var curve = elliptic.curves[curve].curve; - this.curve = curve; - this.g = curve.g; - this.g.precompute(curve.n.bitLength() + 1); - - this.pointClass = curve.point().constructor; - this.encodingLength = Math.ceil(curve.n.bitLength() / 8); - this.hash = hash.sha512; -} - -module.exports = EDDSA; - -/** -* @param {Array|String} message - message bytes -* @param {Array|String|KeyPair} secret - secret bytes or a keypair -* @returns {Signature} - signature -*/ -EDDSA.prototype.sign = function sign(message, secret) { - message = parseBytes(message); - var key = this.keyFromSecret(secret); - var r = this.hashInt(key.messagePrefix(), message); - var R = this.g.mul(r); - var Rencoded = this.encodePoint(R); - var s_ = this.hashInt(Rencoded, key.pubBytes(), message) - .mul(key.priv()); - var S = r.add(s_).umod(this.curve.n); - return this.makeSignature({ R: R, S: S, Rencoded: Rencoded }); -}; - -/** -* @param {Array} message - message bytes -* @param {Array|String|Signature} sig - sig bytes -* @param {Array|String|Point|KeyPair} pub - public key -* @returns {Boolean} - true if public key matches sig of message -*/ -EDDSA.prototype.verify = function verify(message, sig, pub) { - message = parseBytes(message); - sig = this.makeSignature(sig); - var key = this.keyFromPublic(pub); - var h = this.hashInt(sig.Rencoded(), key.pubBytes(), message); - var SG = this.g.mul(sig.S()); - var RplusAh = sig.R().add(key.pub().mul(h)); - return RplusAh.eq(SG); -}; - -EDDSA.prototype.hashInt = function hashInt() { - var hash = this.hash(); - for (var i = 0; i < arguments.length; i++) - hash.update(arguments[i]); - return utils.intFromLE(hash.digest()).umod(this.curve.n); -}; - -EDDSA.prototype.keyFromPublic = function keyFromPublic(pub) { - return KeyPair.fromPublic(this, pub); -}; - -EDDSA.prototype.keyFromSecret = function keyFromSecret(secret) { - return KeyPair.fromSecret(this, secret); -}; - -EDDSA.prototype.makeSignature = function makeSignature(sig) { - if (sig instanceof Signature) - return sig; - return new Signature(this, sig); -}; - -/** -* * https://tools.ietf.org/html/draft-josefsson-eddsa-ed25519-03#section-5.2 -* -* EDDSA defines methods for encoding and decoding points and integers. These are -* helper convenience methods, that pass along to utility functions implied -* parameters. -* -*/ -EDDSA.prototype.encodePoint = function encodePoint(point) { - var enc = point.getY().toArray('le', this.encodingLength); - enc[this.encodingLength - 1] |= point.getX().isOdd() ? 0x80 : 0; - return enc; -}; - -EDDSA.prototype.decodePoint = function decodePoint(bytes) { - bytes = utils.parseBytes(bytes); - - var lastIx = bytes.length - 1; - var normed = bytes.slice(0, lastIx).concat(bytes[lastIx] & ~0x80); - var xIsOdd = (bytes[lastIx] & 0x80) !== 0; - - var y = utils.intFromLE(normed); - return this.curve.pointFromY(y, xIsOdd); -}; - -EDDSA.prototype.encodeInt = function encodeInt(num) { - return num.toArray('le', this.encodingLength); -}; - -EDDSA.prototype.decodeInt = function decodeInt(bytes) { - return utils.intFromLE(bytes); -}; - -EDDSA.prototype.isPoint = function isPoint(val) { - return val instanceof this.pointClass; -}; - -},{"69":69,"80":80,"81":81,"88":88}],80:[function(require,module,exports){ -'use strict'; - -var elliptic = require(69); -var utils = elliptic.utils; -var assert = utils.assert; -var parseBytes = utils.parseBytes; -var cachedProperty = utils.cachedProperty; - -/** -* @param {EDDSA} eddsa - instance -* @param {Object} params - public/private key parameters -* -* @param {Array} [params.secret] - secret seed bytes -* @param {Point} [params.pub] - public key point (aka `A` in eddsa terms) -* @param {Array} [params.pub] - public key point encoded as bytes -* -*/ -function KeyPair(eddsa, params) { - this.eddsa = eddsa; - this._secret = parseBytes(params.secret); - if (eddsa.isPoint(params.pub)) - this._pub = params.pub; - else - this._pubBytes = parseBytes(params.pub); -} - -KeyPair.fromPublic = function fromPublic(eddsa, pub) { - if (pub instanceof KeyPair) - return pub; - return new KeyPair(eddsa, { pub: pub }); -}; - -KeyPair.fromSecret = function fromSecret(eddsa, secret) { - if (secret instanceof KeyPair) - return secret; - return new KeyPair(eddsa, { secret: secret }); -}; - -KeyPair.prototype.secret = function secret() { - return this._secret; -}; - -cachedProperty(KeyPair, 'pubBytes', function pubBytes() { - return this.eddsa.encodePoint(this.pub()); -}); - -cachedProperty(KeyPair, 'pub', function pub() { - if (this._pubBytes) - return this.eddsa.decodePoint(this._pubBytes); - return this.eddsa.g.mul(this.priv()); -}); - -cachedProperty(KeyPair, 'privBytes', function privBytes() { - var eddsa = this.eddsa; - var hash = this.hash(); - var lastIx = eddsa.encodingLength - 1; - - var a = hash.slice(0, eddsa.encodingLength); - a[0] &= 248; - a[lastIx] &= 127; - a[lastIx] |= 64; - - return a; -}); - -cachedProperty(KeyPair, 'priv', function priv() { - return this.eddsa.decodeInt(this.privBytes()); -}); - -cachedProperty(KeyPair, 'hash', function hash() { - return this.eddsa.hash().update(this.secret()).digest(); -}); - -cachedProperty(KeyPair, 'messagePrefix', function messagePrefix() { - return this.hash().slice(this.eddsa.encodingLength); -}); - -KeyPair.prototype.sign = function sign(message) { - assert(this._secret, 'KeyPair can only verify'); - return this.eddsa.sign(message, this); -}; - -KeyPair.prototype.verify = function verify(message, sig) { - return this.eddsa.verify(message, sig, this); -}; - -KeyPair.prototype.getSecret = function getSecret(enc) { - assert(this._secret, 'KeyPair is public only'); - return utils.encode(this.secret(), enc); -}; - -KeyPair.prototype.getPublic = function getPublic(enc) { - return utils.encode(this.pubBytes(), enc); -}; - -module.exports = KeyPair; - -},{"69":69}],81:[function(require,module,exports){ -'use strict'; - -var BN = require(18); -var elliptic = require(69); -var utils = elliptic.utils; -var assert = utils.assert; -var cachedProperty = utils.cachedProperty; -var parseBytes = utils.parseBytes; - -/** -* @param {EDDSA} eddsa - eddsa instance -* @param {Array|Object} sig - -* @param {Array|Point} [sig.R] - R point as Point or bytes -* @param {Array|bn} [sig.S] - S scalar as bn or bytes -* @param {Array} [sig.Rencoded] - R point encoded -* @param {Array} [sig.Sencoded] - S scalar encoded -*/ -function Signature(eddsa, sig) { - this.eddsa = eddsa; - - if (typeof sig !== 'object') - sig = parseBytes(sig); - - if (Array.isArray(sig)) { - sig = { - R: sig.slice(0, eddsa.encodingLength), - S: sig.slice(eddsa.encodingLength) - }; - } - - assert(sig.R && sig.S, 'Signature without R or S'); - - if (eddsa.isPoint(sig.R)) - this._R = sig.R; - if (sig.S instanceof BN) - this._S = sig.S; - - this._Rencoded = Array.isArray(sig.R) ? sig.R : sig.Rencoded; - this._Sencoded = Array.isArray(sig.S) ? sig.S : sig.Sencoded; -} - -cachedProperty(Signature, 'S', function S() { - return this.eddsa.decodeInt(this.Sencoded()); -}); - -cachedProperty(Signature, 'R', function R() { - return this.eddsa.decodePoint(this.Rencoded()); -}); - -cachedProperty(Signature, 'Rencoded', function Rencoded() { - return this.eddsa.encodePoint(this.R()); -}); - -cachedProperty(Signature, 'Sencoded', function Sencoded() { - return this.eddsa.encodeInt(this.S()); -}); - -Signature.prototype.toBytes = function toBytes() { - return this.Rencoded().concat(this.Sencoded()); -}; - -Signature.prototype.toHex = function toHex() { - return utils.encode(this.toBytes(), 'hex').toUpperCase(); -}; - -module.exports = Signature; - -},{"18":18,"69":69}],82:[function(require,module,exports){ -'use strict'; - -var hash = require(88); -var elliptic = require(69); -var utils = elliptic.utils; -var assert = utils.assert; - -function HmacDRBG(options) { - if (!(this instanceof HmacDRBG)) - return new HmacDRBG(options); - this.hash = options.hash; - this.predResist = !!options.predResist; - - this.outLen = this.hash.outSize; - this.minEntropy = options.minEntropy || this.hash.hmacStrength; - - this.reseed = null; - this.reseedInterval = null; - this.K = null; - this.V = null; - - var entropy = utils.toArray(options.entropy, options.entropyEnc); - var nonce = utils.toArray(options.nonce, options.nonceEnc); - var pers = utils.toArray(options.pers, options.persEnc); - assert(entropy.length >= (this.minEntropy / 8), - 'Not enough entropy. Minimum is: ' + this.minEntropy + ' bits'); - this._init(entropy, nonce, pers); -} -module.exports = HmacDRBG; - -HmacDRBG.prototype._init = function init(entropy, nonce, pers) { - var seed = entropy.concat(nonce).concat(pers); - - this.K = new Array(this.outLen / 8); - this.V = new Array(this.outLen / 8); - for (var i = 0; i < this.V.length; i++) { - this.K[i] = 0x00; - this.V[i] = 0x01; - } - - this._update(seed); - this.reseed = 1; - this.reseedInterval = 0x1000000000000; // 2^48 -}; - -HmacDRBG.prototype._hmac = function hmac() { - return new hash.hmac(this.hash, this.K); -}; - -HmacDRBG.prototype._update = function update(seed) { - var kmac = this._hmac() - .update(this.V) - .update([ 0x00 ]); - if (seed) - kmac = kmac.update(seed); - this.K = kmac.digest(); - this.V = this._hmac().update(this.V).digest(); - if (!seed) - return; - - this.K = this._hmac() - .update(this.V) - .update([ 0x01 ]) - .update(seed) - .digest(); - this.V = this._hmac().update(this.V).digest(); -}; - -HmacDRBG.prototype.reseed = function reseed(entropy, entropyEnc, add, addEnc) { - // Optional entropy enc - if (typeof entropyEnc !== 'string') { - addEnc = add; - add = entropyEnc; - entropyEnc = null; - } - - entropy = utils.toBuffer(entropy, entropyEnc); - add = utils.toBuffer(add, addEnc); - - assert(entropy.length >= (this.minEntropy / 8), - 'Not enough entropy. Minimum is: ' + this.minEntropy + ' bits'); - - this._update(entropy.concat(add || [])); - this.reseed = 1; -}; - -HmacDRBG.prototype.generate = function generate(len, enc, add, addEnc) { - if (this.reseed > this.reseedInterval) - throw new Error('Reseed is required'); - - // Optional encoding - if (typeof enc !== 'string') { - addEnc = add; - add = enc; - enc = null; - } - - // Optional additional data - if (add) { - add = utils.toArray(add, addEnc); - this._update(add); - } - - var temp = []; - while (temp.length < len) { - this.V = this._hmac().update(this.V).digest(); - temp = temp.concat(this.V); - } - - var res = temp.slice(0, len); - this._update(add); - this.reseed++; - return utils.encode(res, enc); -}; - -},{"69":69,"88":88}],83:[function(require,module,exports){ -module.exports = { - doubles: { - step: 4, - points: [ - [ - 'e60fce93b59e9ec53011aabc21c23e97b2a31369b87a5ae9c44ee89e2a6dec0a', - 'f7e3507399e595929db99f34f57937101296891e44d23f0be1f32cce69616821' - ], - [ - '8282263212c609d9ea2a6e3e172de238d8c39cabd5ac1ca10646e23fd5f51508', - 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], - [ - '809a20c67d64900ffb698c4c825f6d5f2310fb0451c869345b7319f645605721', - '9e994980d9917e22b76b061927fa04143d096ccc54963e6a5ebfa5f3f8e286c1' - ], - [ - '1b38903a43f7f114ed4500b4eac7083fdefece1cf29c63528d563446f972c180', - '4036edc931a60ae889353f77fd53de4a2708b26b6f5da72ad3394119daf408f9' - ] - ] + var data = dataBuffer.join(); + if (state.defaultBuffer === undefined) + state.defaultBuffer = this._encodeValue(state['default'], reporter, parent).join(); + + if (data.length !== state.defaultBuffer.length) + return false; + + for (i=0; i < data.length; i++) + if (data[i] !== state.defaultBuffer[i]) + return false; + + return true; +}; + +// Utility methods + +function encodeTag(tag, primitive, cls, reporter) { + var res; + + if (tag === 'seqof') + tag = 'seq'; + else if (tag === 'setof') + tag = 'set'; + + if (der.tagByName.hasOwnProperty(tag)) + res = der.tagByName[tag]; + else if (typeof tag === 'number' && (tag | 0) === tag) + res = tag; + else + return reporter.error('Unknown tag: ' + tag); + + if (res >= 0x1f) + return reporter.error('Multi-octet tag encoding unsupported'); + + if (!primitive) + res |= 0x20; + + res |= (der.tagClassByName[cls || 'universal'] << 6); + + return res; +} + +},{"109":109,"54":54,"7":7}],19:[function(require,module,exports){ +var encoders = exports; + +encoders.der = require(18); +encoders.pem = require(20); + +},{"18":18,"20":20}],20:[function(require,module,exports){ +var inherits = require(109); + +var DEREncoder = require(18); + +function PEMEncoder(entity) { + DEREncoder.call(this, entity); + this.enc = 'pem'; +}; +inherits(PEMEncoder, DEREncoder); +module.exports = PEMEncoder; + +PEMEncoder.prototype.encode = function encode(data, options) { + var buf = DEREncoder.prototype.encode.call(this, data); + + var p = buf.toString('base64'); + var out = [ '-----BEGIN ' + options.label + '-----' ]; + for (var i = 0; i < p.length; i += 64) + out.push(p.slice(i, i + 64)); + out.push('-----END ' + options.label + '-----'); + return out.join('\n'); +}; + +},{"109":109,"18":18}],21:[function(require,module,exports){ +var lookup = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/'; + +;(function (exports) { + 'use strict'; + + var Arr = (typeof Uint8Array !== 'undefined') + ? Uint8Array + : Array + + var PLUS = '+'.charCodeAt(0) + var SLASH = '/'.charCodeAt(0) + var NUMBER = '0'.charCodeAt(0) + var LOWER = 'a'.charCodeAt(0) + var UPPER = 'A'.charCodeAt(0) + var PLUS_URL_SAFE = '-'.charCodeAt(0) + var SLASH_URL_SAFE = '_'.charCodeAt(0) + + function decode (elt) { + var code = elt.charCodeAt(0) + if (code === PLUS || + code === PLUS_URL_SAFE) + return 62 // '+' + if (code === SLASH || + code === SLASH_URL_SAFE) + return 63 // '/' + if (code < NUMBER) + return -1 //no match + if (code < NUMBER + 10) + return code - NUMBER + 26 + 26 + if (code < UPPER + 26) + return code - UPPER + if (code < LOWER + 26) + return code - LOWER + 26 + } + + function b64ToByteArray (b64) { + var i, j, l, tmp, placeHolders, arr + + if (b64.length % 4 > 0) { + throw new Error('Invalid string. Length must be a multiple of 4') + } + + // the number of equal signs (place holders) + // if there are two placeholders, than the two characters before it + // represent one byte + // if there is only one, then the three characters before it represent 2 bytes + // this is just a cheap hack to not do indexOf twice + var len = b64.length + placeHolders = '=' === b64.charAt(len - 2) ? 2 : '=' === b64.charAt(len - 1) ? 1 : 0 + + // base64 is 4/3 + up to two characters of the original data + arr = new Arr(b64.length * 3 / 4 - placeHolders) + + // if there are placeholders, only get up to the last complete 4 chars + l = placeHolders > 0 ? b64.length - 4 : b64.length + + var L = 0 + + function push (v) { + arr[L++] = v + } + + for (i = 0, j = 0; i < l; i += 4, j += 3) { + tmp = (decode(b64.charAt(i)) << 18) | (decode(b64.charAt(i + 1)) << 12) | (decode(b64.charAt(i + 2)) << 6) | decode(b64.charAt(i + 3)) + push((tmp & 0xFF0000) >> 16) + push((tmp & 0xFF00) >> 8) + push(tmp & 0xFF) + } + + if (placeHolders === 2) { + tmp = (decode(b64.charAt(i)) << 2) | (decode(b64.charAt(i + 1)) >> 4) + push(tmp & 0xFF) + } else if (placeHolders === 1) { + tmp = (decode(b64.charAt(i)) << 10) | (decode(b64.charAt(i + 1)) << 4) | (decode(b64.charAt(i + 2)) >> 2) + push((tmp >> 8) & 0xFF) + push(tmp & 0xFF) + } + + return arr + } + + function uint8ToBase64 (uint8) { + var i, + extraBytes = uint8.length % 3, // if we have 1 byte left, pad 2 bytes + output = "", + temp, length + + function encode (num) { + return lookup.charAt(num) + } + + function tripletToBase64 (num) { + return encode(num >> 18 & 0x3F) + encode(num >> 12 & 0x3F) + encode(num >> 6 & 0x3F) + encode(num & 0x3F) + } + + // go through the array every three bytes, we'll deal with trailing stuff later + for (i = 0, length = uint8.length - extraBytes; i < length; i += 3) { + temp = (uint8[i] << 16) + (uint8[i + 1] << 8) + (uint8[i + 2]) + output += tripletToBase64(temp) + } + + // pad the end with zeros, but make sure to not forget the extra bytes + switch (extraBytes) { + case 1: + temp = uint8[uint8.length - 1] + output += encode(temp >> 2) + output += encode((temp << 4) & 0x3F) + output += '==' + break + case 2: + temp = (uint8[uint8.length - 2] << 8) + (uint8[uint8.length - 1]) + output += encode(temp >> 10) + output += encode((temp >> 4) & 0x3F) + output += encode((temp << 2) & 0x3F) + output += '=' + break + } + + return output + } + + exports.toByteArray = b64ToByteArray + exports.fromByteArray = uint8ToBase64 +}(typeof exports === 'undefined' ? (this.base64js = {}) : exports)) + +},{}],22:[function(require,module,exports){ +(function (module, exports) { + 'use strict'; + + // Utils + function assert (val, msg) { + if (!val) throw new Error(msg || 'Assertion failed'); + } + + // Could use `inherits` module, but don't want to move from single file + // architecture yet. + function inherits (ctor, superCtor) { + ctor.super_ = superCtor; + var TempCtor = function () {}; + TempCtor.prototype = superCtor.prototype; + ctor.prototype = new TempCtor(); + ctor.prototype.constructor = ctor; + } + + // BN + + function BN (number, base, endian) { + if (BN.isBN(number)) { + return number; + } + + this.negative = 0; + this.words = null; + this.length = 0; + + // Reduction context + this.red = null; + + if (number !== null) { + if (base === 'le' || base === 'be') { + endian = base; + base = 10; + } + + this._init(number || 0, base || 10, endian || 'be'); + } + } + if (typeof module === 'object') { + module.exports = BN; + } else { + exports.BN = BN; + } + + BN.BN = BN; + BN.wordSize = 26; + + var Buffer; + try { + Buffer = require(24).Buffer; + } catch (e) { + } + + BN.isBN = function isBN (num) { + if (num instanceof BN) { + return true; + } + + return num !== null && typeof num === 'object' && + num.constructor.wordSize === BN.wordSize && Array.isArray(num.words); + }; + + BN.max = function max (left, right) { + if (left.cmp(right) > 0) return left; + return right; + }; + + BN.min = function min (left, right) { + if (left.cmp(right) < 0) return left; + return right; + }; + + BN.prototype._init = function init (number, base, endian) { + if (typeof number === 'number') { + return this._initNumber(number, base, endian); + } + + if (typeof number === 'object') { + return this._initArray(number, base, endian); + } + + if (base === 'hex') { + base = 16; + } + assert(base === (base | 0) && base >= 2 && base <= 36); + + number = number.toString().replace(/\s+/g, ''); + var start = 0; + if (number[0] === '-') { + start++; + } + + if (base === 16) { + this._parseHex(number, start); + } else { + this._parseBase(number, base, start); + } + + if (number[0] === '-') { + this.negative = 1; + } + + this.strip(); + + if (endian !== 'le') return; + + this._initArray(this.toArray(), base, endian); + }; + + BN.prototype._initNumber = function _initNumber (number, base, endian) { + if (number < 0) { + this.negative = 1; + number = -number; + } + if (number < 0x4000000) { + this.words = [ number & 0x3ffffff ]; + this.length = 1; + } else if (number < 0x10000000000000) { + this.words = [ + number & 0x3ffffff, + (number / 0x4000000) & 0x3ffffff + ]; + this.length = 2; + } else { + assert(number < 0x20000000000000); // 2 ^ 53 (unsafe) + this.words = [ + number & 0x3ffffff, + (number / 0x4000000) & 0x3ffffff, + 1 + ]; + this.length = 3; + } + + if (endian !== 'le') return; + + // Reverse the bytes + this._initArray(this.toArray(), base, endian); + }; + + BN.prototype._initArray = function _initArray (number, base, endian) { + // Perhaps a Uint8Array + assert(typeof number.length === 'number'); + if (number.length <= 0) { + this.words = [ 0 ]; + this.length = 1; + return this; + } + + this.length = Math.ceil(number.length / 3); + this.words = new Array(this.length); + for (var i = 0; i < this.length; i++) { + this.words[i] = 0; + } + + var j, w; + var off = 0; + if (endian === 'be') { + for (i = number.length - 1, j = 0; i >= 0; i -= 3) { + w = number[i] | (number[i - 1] << 8) | (number[i - 2] << 16); + this.words[j] |= (w << off) & 0x3ffffff; + this.words[j + 1] = (w >>> (26 - off)) & 0x3ffffff; + off += 24; + if (off >= 26) { + off -= 26; + j++; + } + } + } else if (endian === 'le') { + for (i = 0, j = 0; i < number.length; i += 3) { + w = number[i] | (number[i + 1] << 8) | (number[i + 2] << 16); + this.words[j] |= (w << off) & 0x3ffffff; + this.words[j + 1] = (w >>> (26 - off)) & 0x3ffffff; + off += 24; + if (off >= 26) { + off -= 26; + j++; + } + } + } + return this.strip(); + }; + + function parseHex (str, start, end) { + var r = 0; + var len = Math.min(str.length, end); + for (var i = start; i < len; i++) { + var c = str.charCodeAt(i) - 48; + + r <<= 4; + + // 'a' - 'f' + if (c >= 49 && c <= 54) { + r |= c - 49 + 0xa; + + // 'A' - 'F' + } else if (c >= 17 && c <= 22) { + r |= c - 17 + 0xa; + + // '0' - '9' + } else { + r |= c & 0xf; + } + } + return r; + } + + BN.prototype._parseHex = function _parseHex (number, start) { + // Create possibly bigger array to ensure that it fits the number + this.length = Math.ceil((number.length - start) / 6); + this.words = new Array(this.length); + for (var i = 0; i < this.length; i++) { + this.words[i] = 0; + } + + var j, w; + // Scan 24-bit chunks and add them to the number + var off = 0; + for (i = number.length - 6, j = 0; i >= start; i -= 6) { + w = parseHex(number, i, i + 6); + this.words[j] |= (w << off) & 0x3ffffff; + // NOTE: `0x3fffff` is intentional here, 26bits max shift + 24bit hex limb + this.words[j + 1] |= w >>> (26 - off) & 0x3fffff; + off += 24; + if (off >= 26) { + off -= 26; + j++; + } + } + if (i + 6 !== start) { + w = parseHex(number, start, i + 6); + this.words[j] |= (w << off) & 0x3ffffff; + this.words[j + 1] |= w >>> (26 - off) & 0x3fffff; + } + this.strip(); + }; + + function parseBase (str, start, end, mul) { + var r = 0; + var len = Math.min(str.length, end); + for (var i = start; i < len; i++) { + var c = str.charCodeAt(i) - 48; + + r *= mul; + + // 'a' + if (c >= 49) { + r += c - 49 + 0xa; + + // 'A' + } else if (c >= 17) { + r += c - 17 + 0xa; + + // '0' - '9' + } else { + r += c; + } + } + return r; + } + + BN.prototype._parseBase = function _parseBase (number, base, start) { + // Initialize as zero + this.words = [ 0 ]; + this.length = 1; + + // Find length of limb in base + for (var limbLen = 0, limbPow = 1; limbPow <= 0x3ffffff; limbPow *= base) { + limbLen++; + } + limbLen--; + limbPow = (limbPow / base) | 0; + + var total = number.length - start; + var mod = total % limbLen; + var end = Math.min(total, total - mod) + start; + + var word = 0; + for (var i = start; i < end; i += limbLen) { + word = parseBase(number, i, i + limbLen, base); + + this.imuln(limbPow); + if (this.words[0] + word < 0x4000000) { + this.words[0] += word; + } else { + this._iaddn(word); + } + } + + if (mod !== 0) { + var pow = 1; + word = parseBase(number, i, number.length, base); + + for (i = 0; i < mod; i++) { + pow *= base; + } + + this.imuln(pow); + if (this.words[0] + word < 0x4000000) { + this.words[0] += word; + } else { + this._iaddn(word); + } + } + }; + + BN.prototype.copy = function copy (dest) { + dest.words = new Array(this.length); + for (var i = 0; i < this.length; i++) { + dest.words[i] = this.words[i]; + } + dest.length = this.length; + dest.negative = this.negative; + dest.red = this.red; + }; + + BN.prototype.clone = function clone () { + var r = new BN(null); + this.copy(r); + return r; + }; + + BN.prototype._expand = function _expand (size) { + while (this.length < size) { + this.words[this.length++] = 0; + } + return this; + }; + + // Remove leading `0` from `this` + BN.prototype.strip = function strip () { + while (this.length > 1 && this.words[this.length - 1] === 0) { + this.length--; + } + return this._normSign(); + }; + + BN.prototype._normSign = function _normSign () { + // -0 = 0 + if (this.length === 1 && this.words[0] === 0) { + this.negative = 0; + } + return this; + }; + + BN.prototype.inspect = function inspect () { + return (this.red ? ''; + }; + + /* + + var zeros = []; + var groupSizes = []; + var groupBases = []; + + var s = ''; + var i = -1; + while (++i < BN.wordSize) { + zeros[i] = s; + s += '0'; + } + groupSizes[0] = 0; + groupSizes[1] = 0; + groupBases[0] = 0; + groupBases[1] = 0; + var base = 2 - 1; + while (++base < 36 + 1) { + var groupSize = 0; + var groupBase = 1; + while (groupBase < (1 << BN.wordSize) / base) { + groupBase *= base; + groupSize += 1; + } + groupSizes[base] = groupSize; + groupBases[base] = groupBase; + } + + */ + + var zeros = [ + '', + '0', + '00', + '000', + '0000', + '00000', + '000000', + '0000000', + '00000000', + '000000000', + '0000000000', + '00000000000', + '000000000000', + '0000000000000', + '00000000000000', + '000000000000000', + '0000000000000000', + '00000000000000000', + '000000000000000000', + '0000000000000000000', + '00000000000000000000', + '000000000000000000000', + '0000000000000000000000', + '00000000000000000000000', + '000000000000000000000000', + '0000000000000000000000000' + ]; + + var groupSizes = [ + 0, 0, + 25, 16, 12, 11, 10, 9, 8, + 8, 7, 7, 7, 7, 6, 6, + 6, 6, 6, 6, 6, 5, 5, + 5, 5, 5, 5, 5, 5, 5, + 5, 5, 5, 5, 5, 5, 5 + ]; + + var groupBases = [ + 0, 0, + 33554432, 43046721, 16777216, 48828125, 60466176, 40353607, 16777216, + 43046721, 10000000, 19487171, 35831808, 62748517, 7529536, 11390625, + 16777216, 24137569, 34012224, 47045881, 64000000, 4084101, 5153632, + 6436343, 7962624, 9765625, 11881376, 14348907, 17210368, 20511149, + 24300000, 28629151, 33554432, 39135393, 45435424, 52521875, 60466176 + ]; + + BN.prototype.toString = function toString (base, padding) { + base = base || 10; + padding = padding | 0 || 1; + + var out; + if (base === 16 || base === 'hex') { + out = ''; + var off = 0; + var carry = 0; + for (var i = 0; i < this.length; i++) { + var w = this.words[i]; + var word = (((w << off) | carry) & 0xffffff).toString(16); + carry = (w >>> (24 - off)) & 0xffffff; + if (carry !== 0 || i !== this.length - 1) { + out = zeros[6 - word.length] + word + out; + } else { + out = word + out; + } + off += 2; + if (off >= 26) { + off -= 26; + i--; + } + } + if (carry !== 0) { + out = carry.toString(16) + out; + } + while (out.length % padding !== 0) { + out = '0' + out; + } + if (this.negative !== 0) { + out = '-' + out; + } + return out; + } + + if (base === (base | 0) && base >= 2 && base <= 36) { + // var groupSize = Math.floor(BN.wordSize * Math.LN2 / Math.log(base)); + var groupSize = groupSizes[base]; + // var groupBase = Math.pow(base, groupSize); + var groupBase = groupBases[base]; + out = ''; + var c = this.clone(); + c.negative = 0; + while (!c.isZero()) { + var r = c.modn(groupBase).toString(base); + c = c.idivn(groupBase); + + if (!c.isZero()) { + out = zeros[groupSize - r.length] + r + out; + } else { + out = r + out; + } + } + if (this.isZero()) { + out = '0' + out; + } + while (out.length % padding !== 0) { + out = '0' + out; + } + if (this.negative !== 0) { + out = '-' + out; + } + return out; + } + + assert(false, 'Base should be between 2 and 36'); + }; + + BN.prototype.toNumber = function toNumber () { + var ret = this.words[0]; + if (this.length === 2) { + ret += this.words[1] * 0x4000000; + } else if (this.length === 3 && this.words[2] === 0x01) { + // NOTE: at this stage it is known that the top bit is set + ret += 0x10000000000000 + (this.words[1] * 0x4000000); + } else if (this.length > 2) { + assert(false, 'Number can only safely store up to 53 bits'); + } + return (this.negative !== 0) ? -ret : ret; + }; + + BN.prototype.toJSON = function toJSON () { + return this.toString(16); + }; + + BN.prototype.toBuffer = function toBuffer (endian, length) { + assert(typeof Buffer !== 'undefined'); + return this.toArrayLike(Buffer, endian, length); + }; + + BN.prototype.toArray = function toArray (endian, length) { + return this.toArrayLike(Array, endian, length); + }; + + BN.prototype.toArrayLike = function toArrayLike (ArrayType, endian, length) { + var byteLength = this.byteLength(); + var reqLength = length || Math.max(1, byteLength); + assert(byteLength <= reqLength, 'byte array longer than desired length'); + assert(reqLength > 0, 'Requested array length <= 0'); + + this.strip(); + var littleEndian = endian === 'le'; + var res = new ArrayType(reqLength); + + var b, i; + var q = this.clone(); + if (!littleEndian) { + // Assume big-endian + for (i = 0; i < reqLength - byteLength; i++) { + res[i] = 0; + } + + for (i = 0; !q.isZero(); i++) { + b = q.andln(0xff); + q.iushrn(8); + + res[reqLength - i - 1] = b; + } + } else { + for (i = 0; !q.isZero(); i++) { + b = q.andln(0xff); + q.iushrn(8); + + res[i] = b; + } + + for (; i < reqLength; i++) { + res[i] = 0; + } + } + + return res; + }; + + if (Math.clz32) { + BN.prototype._countBits = function _countBits (w) { + return 32 - Math.clz32(w); + }; + } else { + BN.prototype._countBits = function _countBits (w) { + var t = w; + var r = 0; + if (t >= 0x1000) { + r += 13; + t >>>= 13; + } + if (t >= 0x40) { + r += 7; + t >>>= 7; + } + if (t >= 0x8) { + r += 4; + t >>>= 4; + } + if (t >= 0x02) { + r += 2; + t >>>= 2; + } + return r + t; + }; + } + + BN.prototype._zeroBits = function _zeroBits (w) { + // Short-cut + if (w === 0) return 26; + + var t = w; + var r = 0; + if ((t & 0x1fff) === 0) { + r += 13; + t >>>= 13; + } + if ((t & 0x7f) === 0) { + r += 7; + t >>>= 7; + } + if ((t & 0xf) === 0) { + r += 4; + t >>>= 4; + } + if ((t & 0x3) === 0) { + r += 2; + t >>>= 2; + } + if ((t & 0x1) === 0) { + r++; + } + return r; + }; + + // Return number of used bits in a BN + BN.prototype.bitLength = function bitLength () { + var w = this.words[this.length - 1]; + var hi = this._countBits(w); + return (this.length - 1) * 26 + hi; + }; + + function toBitArray (num) { + var w = new Array(num.bitLength()); + + for (var bit = 0; bit < w.length; bit++) { + var off = (bit / 26) | 0; + var wbit = bit % 26; + + w[bit] = (num.words[off] & (1 << wbit)) >>> wbit; + } + + return w; + } + + // Number of trailing zero bits + BN.prototype.zeroBits = function zeroBits () { + if (this.isZero()) return 0; + + var r = 0; + for (var i = 0; i < this.length; i++) { + var b = this._zeroBits(this.words[i]); + r += b; + if (b !== 26) break; + } + return r; + }; + + BN.prototype.byteLength = function byteLength () { + return Math.ceil(this.bitLength() / 8); + }; + + BN.prototype.toTwos = function toTwos (width) { + if (this.negative !== 0) { + return this.abs().inotn(width).iaddn(1); + } + return this.clone(); + }; + + BN.prototype.fromTwos = function fromTwos (width) { + if (this.testn(width - 1)) { + return this.notn(width).iaddn(1).ineg(); + } + return this.clone(); + }; + + BN.prototype.isNeg = function isNeg () { + return this.negative !== 0; + }; + + // Return negative clone of `this` + BN.prototype.neg = function neg () { + return this.clone().ineg(); + }; + + BN.prototype.ineg = function ineg () { + if (!this.isZero()) { + this.negative ^= 1; + } + + return this; + }; + + // Or `num` with `this` in-place + BN.prototype.iuor = function iuor (num) { + while (this.length < num.length) { + this.words[this.length++] = 0; + } + + for (var i = 0; i < num.length; i++) { + this.words[i] = this.words[i] | num.words[i]; + } + + return this.strip(); + }; + + BN.prototype.ior = function ior (num) { + assert((this.negative | num.negative) === 0); + return this.iuor(num); + }; + + // Or `num` with `this` + BN.prototype.or = function or (num) { + if (this.length > num.length) return this.clone().ior(num); + return num.clone().ior(this); + }; + + BN.prototype.uor = function uor (num) { + if (this.length > num.length) return this.clone().iuor(num); + return num.clone().iuor(this); + }; + + // And `num` with `this` in-place + BN.prototype.iuand = function iuand (num) { + // b = min-length(num, this) + var b; + if (this.length > num.length) { + b = num; + } else { + b = this; + } + + for (var i = 0; i < b.length; i++) { + this.words[i] = this.words[i] & num.words[i]; + } + + this.length = b.length; + + return this.strip(); + }; + + BN.prototype.iand = function iand (num) { + assert((this.negative | num.negative) === 0); + return this.iuand(num); + }; + + // And `num` with `this` + BN.prototype.and = function and (num) { + if (this.length > num.length) return this.clone().iand(num); + return num.clone().iand(this); + }; + + BN.prototype.uand = function uand (num) { + if (this.length > num.length) return this.clone().iuand(num); + return num.clone().iuand(this); + }; + + // Xor `num` with `this` in-place + BN.prototype.iuxor = function iuxor (num) { + // a.length > b.length + var a; + var b; + if (this.length > num.length) { + a = this; + b = num; + } else { + a = num; + b = this; + } + + for (var i = 0; i < b.length; i++) { + this.words[i] = a.words[i] ^ b.words[i]; + } + + if (this !== a) { + for (; i < a.length; i++) { + this.words[i] = a.words[i]; + } + } + + this.length = a.length; + + return this.strip(); + }; + + BN.prototype.ixor = function ixor (num) { + assert((this.negative | num.negative) === 0); + return this.iuxor(num); + }; + + // Xor `num` with `this` + BN.prototype.xor = function xor (num) { + if (this.length > num.length) return this.clone().ixor(num); + return num.clone().ixor(this); + }; + + BN.prototype.uxor = function uxor (num) { + if (this.length > num.length) return this.clone().iuxor(num); + return num.clone().iuxor(this); + }; + + // Not ``this`` with ``width`` bitwidth + BN.prototype.inotn = function inotn (width) { + assert(typeof width === 'number' && width >= 0); + + var bytesNeeded = Math.ceil(width / 26) | 0; + var bitsLeft = width % 26; + + // Extend the buffer with leading zeroes + this._expand(bytesNeeded); + + if (bitsLeft > 0) { + bytesNeeded--; + } + + // Handle complete words + for (var i = 0; i < bytesNeeded; i++) { + this.words[i] = ~this.words[i] & 0x3ffffff; + } + + // Handle the residue + if (bitsLeft > 0) { + this.words[i] = ~this.words[i] & (0x3ffffff >> (26 - bitsLeft)); + } + + // And remove leading zeroes + return this.strip(); + }; + + BN.prototype.notn = function notn (width) { + return this.clone().inotn(width); + }; + + // Set `bit` of `this` + BN.prototype.setn = function setn (bit, val) { + assert(typeof bit === 'number' && bit >= 0); + + var off = (bit / 26) | 0; + var wbit = bit % 26; + + this._expand(off + 1); + + if (val) { + this.words[off] = this.words[off] | (1 << wbit); + } else { + this.words[off] = this.words[off] & ~(1 << wbit); + } + + return this.strip(); + }; + + // Add `num` to `this` in-place + BN.prototype.iadd = function iadd (num) { + var r; + + // negative + positive + if (this.negative !== 0 && num.negative === 0) { + this.negative = 0; + r = this.isub(num); + this.negative ^= 1; + return this._normSign(); + + // positive + negative + } else if (this.negative === 0 && num.negative !== 0) { + num.negative = 0; + r = this.isub(num); + num.negative = 1; + return r._normSign(); + } + + // a.length > b.length + var a, b; + if (this.length > num.length) { + a = this; + b = num; + } else { + a = num; + b = this; + } + + var carry = 0; + for (var i = 0; i < b.length; i++) { + r = (a.words[i] | 0) + (b.words[i] | 0) + carry; + this.words[i] = r & 0x3ffffff; + carry = r >>> 26; + } + for (; carry !== 0 && i < a.length; i++) { + r = (a.words[i] | 0) + carry; + this.words[i] = r & 0x3ffffff; + carry = r >>> 26; + } + + this.length = a.length; + if (carry !== 0) { + this.words[this.length] = carry; + this.length++; + // Copy the rest of the words + } else if (a !== this) { + for (; i < a.length; i++) { + this.words[i] = a.words[i]; + } + } + + return this; + }; + + // Add `num` to `this` + BN.prototype.add = function add (num) { + var res; + if (num.negative !== 0 && this.negative === 0) { + num.negative = 0; + res = this.sub(num); + num.negative ^= 1; + return res; + } else if (num.negative === 0 && this.negative !== 0) { + this.negative = 0; + res = num.sub(this); + this.negative = 1; + return res; + } + + if (this.length > num.length) return this.clone().iadd(num); + + return num.clone().iadd(this); + }; + + // Subtract `num` from `this` in-place + BN.prototype.isub = function isub (num) { + // this - (-num) = this + num + if (num.negative !== 0) { + num.negative = 0; + var r = this.iadd(num); + num.negative = 1; + return r._normSign(); + + // -this - num = -(this + num) + } else if (this.negative !== 0) { + this.negative = 0; + this.iadd(num); + this.negative = 1; + return this._normSign(); + } + + // At this point both numbers are positive + var cmp = this.cmp(num); + + // Optimization - zeroify + if (cmp === 0) { + this.negative = 0; + this.length = 1; + this.words[0] = 0; + return this; + } + + // a > b + var a, b; + if (cmp > 0) { + a = this; + b = num; + } else { + a = num; + b = this; + } + + var carry = 0; + for (var i = 0; i < b.length; i++) { + r = (a.words[i] | 0) - (b.words[i] | 0) + carry; + carry = r >> 26; + this.words[i] = r & 0x3ffffff; + } + for (; carry !== 0 && i < a.length; i++) { + r = (a.words[i] | 0) + carry; + carry = r >> 26; + this.words[i] = r & 0x3ffffff; + } + + // Copy rest of the words + if (carry === 0 && i < a.length && a !== this) { + for (; i < a.length; i++) { + this.words[i] = a.words[i]; + } + } + + this.length = Math.max(this.length, i); + + if (a !== this) { + this.negative = 1; + } + + return this.strip(); + }; + + // Subtract `num` from `this` + BN.prototype.sub = function sub (num) { + return this.clone().isub(num); + }; + + function smallMulTo (self, num, out) { + out.negative = num.negative ^ self.negative; + var len = (self.length + num.length) | 0; + out.length = len; + len = (len - 1) | 0; + + // Peel one iteration (compiler can't do it, because of code complexity) + var a = self.words[0] | 0; + var b = num.words[0] | 0; + var r = a * b; + + var lo = r & 0x3ffffff; + var carry = (r / 0x4000000) | 0; + out.words[0] = lo; + + for (var k = 1; k < len; k++) { + // Sum all words with the same `i + j = k` and accumulate `ncarry`, + // note that ncarry could be >= 0x3ffffff + var ncarry = carry >>> 26; + var rword = carry & 0x3ffffff; + var maxJ = Math.min(k, num.length - 1); + for (var j = Math.max(0, k - self.length + 1); j <= maxJ; j++) { + var i = (k - j) | 0; + a = self.words[i] | 0; + b = num.words[j] | 0; + r = a * b + rword; + ncarry += (r / 0x4000000) | 0; + rword = r & 0x3ffffff; + } + out.words[k] = rword | 0; + carry = ncarry | 0; + } + if (carry !== 0) { + out.words[k] = carry | 0; + } else { + out.length--; + } + + return out.strip(); + } + + // TODO(indutny): it may be reasonable to omit it for users who don't need + // to work with 256-bit numbers, otherwise it gives 20% improvement for 256-bit + // multiplication (like elliptic secp256k1). + var comb10MulTo = function comb10MulTo (self, num, out) { + var a = self.words; + var b = num.words; + var o = out.words; + var c = 0; + var lo; + var mid; + var hi; + var a0 = a[0] | 0; + var al0 = a0 & 0x1fff; + var ah0 = a0 >>> 13; + var a1 = a[1] | 0; + var al1 = a1 & 0x1fff; + var ah1 = a1 >>> 13; + var a2 = a[2] | 0; + var al2 = a2 & 0x1fff; + var ah2 = a2 >>> 13; + var a3 = a[3] | 0; + var al3 = a3 & 0x1fff; + var ah3 = a3 >>> 13; + var a4 = a[4] | 0; + var al4 = a4 & 0x1fff; + var ah4 = a4 >>> 13; + var a5 = a[5] | 0; + var al5 = a5 & 0x1fff; + var ah5 = a5 >>> 13; + var a6 = a[6] | 0; + var al6 = a6 & 0x1fff; + var ah6 = a6 >>> 13; + var a7 = a[7] | 0; + var al7 = a7 & 0x1fff; + var ah7 = a7 >>> 13; + var a8 = a[8] | 0; + var al8 = a8 & 0x1fff; + var ah8 = a8 >>> 13; + var a9 = a[9] | 0; + var al9 = a9 & 0x1fff; + var ah9 = a9 >>> 13; + var b0 = b[0] | 0; + var bl0 = b0 & 0x1fff; + var bh0 = b0 >>> 13; + var b1 = b[1] | 0; + var bl1 = b1 & 0x1fff; + var bh1 = b1 >>> 13; + var b2 = b[2] | 0; + var bl2 = b2 & 0x1fff; + var bh2 = b2 >>> 13; + var b3 = b[3] | 0; + var bl3 = b3 & 0x1fff; + var bh3 = b3 >>> 13; + var b4 = b[4] | 0; + var bl4 = b4 & 0x1fff; + var bh4 = b4 >>> 13; + var b5 = b[5] | 0; + var bl5 = b5 & 0x1fff; + var bh5 = b5 >>> 13; + var b6 = b[6] | 0; + var bl6 = b6 & 0x1fff; + var bh6 = b6 >>> 13; + var b7 = b[7] | 0; + var bl7 = b7 & 0x1fff; + var bh7 = b7 >>> 13; + var b8 = b[8] | 0; + var bl8 = b8 & 0x1fff; + var bh8 = b8 >>> 13; + var b9 = b[9] | 0; + var bl9 = b9 & 0x1fff; + var bh9 = b9 >>> 13; + + out.negative = self.negative ^ num.negative; + out.length = 19; + /* k = 0 */ + lo = Math.imul(al0, bl0); + mid = Math.imul(al0, bh0); + mid = (mid + Math.imul(ah0, bl0)) | 0; + hi = Math.imul(ah0, bh0); + var w0 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; + c = (((hi + (mid >>> 13)) | 0) + (w0 >>> 26)) | 0; + w0 &= 0x3ffffff; + /* k = 1 */ + lo = Math.imul(al1, bl0); + mid = Math.imul(al1, bh0); + mid = (mid + Math.imul(ah1, bl0)) | 0; + hi = Math.imul(ah1, bh0); + lo = (lo + Math.imul(al0, bl1)) | 0; + mid = (mid + Math.imul(al0, bh1)) | 0; + mid = (mid + Math.imul(ah0, bl1)) | 0; + hi = (hi + Math.imul(ah0, bh1)) | 0; + var w1 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; + c = (((hi + (mid >>> 13)) | 0) + (w1 >>> 26)) | 0; + w1 &= 0x3ffffff; + /* k = 2 */ + lo = Math.imul(al2, bl0); + mid = Math.imul(al2, bh0); + mid = (mid + Math.imul(ah2, bl0)) | 0; + hi = Math.imul(ah2, bh0); + lo = (lo + Math.imul(al1, bl1)) | 0; + mid = (mid + Math.imul(al1, bh1)) | 0; + mid = (mid + Math.imul(ah1, bl1)) | 0; + hi = (hi + Math.imul(ah1, bh1)) | 0; + lo = (lo + Math.imul(al0, bl2)) | 0; + mid = (mid + Math.imul(al0, bh2)) | 0; + mid = (mid + Math.imul(ah0, bl2)) | 0; + hi = (hi + Math.imul(ah0, bh2)) | 0; + var w2 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; + c = (((hi + (mid >>> 13)) | 0) + (w2 >>> 26)) | 0; + w2 &= 0x3ffffff; + /* k = 3 */ + lo = Math.imul(al3, bl0); + mid = Math.imul(al3, bh0); + mid = (mid + Math.imul(ah3, bl0)) | 0; + hi = Math.imul(ah3, bh0); + lo = (lo + Math.imul(al2, bl1)) | 0; + mid = (mid + Math.imul(al2, bh1)) | 0; + mid = (mid + Math.imul(ah2, bl1)) | 0; + hi = (hi + Math.imul(ah2, bh1)) | 0; + lo = (lo + Math.imul(al1, bl2)) | 0; + mid = (mid + Math.imul(al1, bh2)) | 0; + mid = (mid + Math.imul(ah1, bl2)) | 0; + hi = (hi + Math.imul(ah1, bh2)) | 0; + lo = (lo + Math.imul(al0, bl3)) | 0; + mid = (mid + Math.imul(al0, bh3)) | 0; + mid = (mid + Math.imul(ah0, bl3)) | 0; + hi = (hi + Math.imul(ah0, bh3)) | 0; + var w3 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; + c = (((hi + (mid >>> 13)) | 0) + (w3 >>> 26)) | 0; + w3 &= 0x3ffffff; + /* k = 4 */ + lo = Math.imul(al4, bl0); + mid = Math.imul(al4, bh0); + mid = (mid + Math.imul(ah4, bl0)) | 0; + hi = Math.imul(ah4, bh0); + lo = (lo + Math.imul(al3, bl1)) | 0; + mid = (mid + Math.imul(al3, bh1)) | 0; + mid = (mid + Math.imul(ah3, bl1)) | 0; + hi = (hi + Math.imul(ah3, bh1)) | 0; + lo = (lo + Math.imul(al2, bl2)) | 0; + mid = (mid + Math.imul(al2, bh2)) | 0; + mid = (mid + Math.imul(ah2, bl2)) | 0; + hi = (hi + Math.imul(ah2, bh2)) | 0; + lo = (lo + Math.imul(al1, bl3)) | 0; + mid = (mid + Math.imul(al1, bh3)) | 0; + mid = (mid + Math.imul(ah1, bl3)) | 0; + hi = (hi + Math.imul(ah1, bh3)) | 0; + lo = (lo + Math.imul(al0, bl4)) | 0; + mid = (mid + Math.imul(al0, bh4)) | 0; + mid = (mid + Math.imul(ah0, bl4)) | 0; + hi = (hi + Math.imul(ah0, bh4)) | 0; + var w4 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; + c = (((hi + (mid >>> 13)) | 0) + (w4 >>> 26)) | 0; + w4 &= 0x3ffffff; + /* k = 5 */ + lo = Math.imul(al5, bl0); + mid = Math.imul(al5, bh0); + mid = (mid + Math.imul(ah5, bl0)) | 0; + hi = Math.imul(ah5, bh0); + lo = (lo + Math.imul(al4, bl1)) | 0; + mid = (mid + Math.imul(al4, bh1)) | 0; + mid = (mid + Math.imul(ah4, bl1)) | 0; + hi = (hi + Math.imul(ah4, bh1)) | 0; + lo = (lo + Math.imul(al3, bl2)) | 0; + mid = (mid + Math.imul(al3, bh2)) | 0; + mid = (mid + Math.imul(ah3, bl2)) | 0; + hi = (hi + Math.imul(ah3, bh2)) | 0; + lo = (lo + Math.imul(al2, bl3)) | 0; + mid = (mid + Math.imul(al2, bh3)) | 0; + mid = (mid + Math.imul(ah2, bl3)) | 0; + hi = (hi + Math.imul(ah2, bh3)) | 0; + lo = (lo + Math.imul(al1, bl4)) | 0; + mid = (mid + Math.imul(al1, bh4)) | 0; + mid = (mid + Math.imul(ah1, bl4)) | 0; + hi = (hi + Math.imul(ah1, bh4)) | 0; + lo = (lo + Math.imul(al0, bl5)) | 0; + mid = (mid + Math.imul(al0, bh5)) | 0; + mid = (mid + Math.imul(ah0, bl5)) | 0; + hi = (hi + Math.imul(ah0, bh5)) | 0; + var w5 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; + c = (((hi + (mid >>> 13)) | 0) + (w5 >>> 26)) | 0; + w5 &= 0x3ffffff; + /* k = 6 */ + lo = Math.imul(al6, bl0); + mid = Math.imul(al6, bh0); + mid = (mid + Math.imul(ah6, bl0)) | 0; + hi = Math.imul(ah6, bh0); + lo = (lo + Math.imul(al5, bl1)) | 0; + mid = (mid + Math.imul(al5, bh1)) | 0; + mid = (mid + Math.imul(ah5, bl1)) | 0; + hi = (hi + Math.imul(ah5, bh1)) | 0; + lo = (lo + Math.imul(al4, bl2)) | 0; + mid = (mid + Math.imul(al4, bh2)) | 0; + mid = (mid + Math.imul(ah4, bl2)) | 0; + hi = (hi + Math.imul(ah4, bh2)) | 0; + lo = (lo + Math.imul(al3, bl3)) | 0; + mid = (mid + Math.imul(al3, bh3)) | 0; + mid = (mid + Math.imul(ah3, bl3)) | 0; + hi = (hi + Math.imul(ah3, bh3)) | 0; + lo = (lo + Math.imul(al2, bl4)) | 0; + mid = (mid + Math.imul(al2, bh4)) | 0; + mid = (mid + Math.imul(ah2, bl4)) | 0; + hi = (hi + Math.imul(ah2, bh4)) | 0; + lo = (lo + Math.imul(al1, bl5)) | 0; + mid = (mid + Math.imul(al1, bh5)) | 0; + mid = (mid + Math.imul(ah1, bl5)) | 0; + hi = (hi + Math.imul(ah1, bh5)) | 0; + lo = (lo + Math.imul(al0, bl6)) | 0; + mid = (mid + Math.imul(al0, bh6)) | 0; + mid = (mid + Math.imul(ah0, bl6)) | 0; + hi = (hi + Math.imul(ah0, bh6)) | 0; + var w6 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; + c = (((hi + (mid >>> 13)) | 0) + (w6 >>> 26)) | 0; + w6 &= 0x3ffffff; + /* k = 7 */ + lo = Math.imul(al7, bl0); + mid = Math.imul(al7, bh0); + mid = (mid + Math.imul(ah7, bl0)) | 0; + hi = Math.imul(ah7, bh0); + lo = (lo + Math.imul(al6, bl1)) | 0; + mid = (mid + Math.imul(al6, bh1)) | 0; + mid = (mid + Math.imul(ah6, bl1)) | 0; + hi = (hi + Math.imul(ah6, bh1)) | 0; + lo = (lo + Math.imul(al5, bl2)) | 0; + mid = (mid + Math.imul(al5, bh2)) | 0; + mid = (mid + Math.imul(ah5, bl2)) | 0; + hi = (hi + Math.imul(ah5, bh2)) | 0; + lo = (lo + Math.imul(al4, bl3)) | 0; + mid = (mid + Math.imul(al4, bh3)) | 0; + mid = (mid + Math.imul(ah4, bl3)) | 0; + hi = (hi + Math.imul(ah4, bh3)) | 0; + lo = (lo + Math.imul(al3, bl4)) | 0; + mid = (mid + Math.imul(al3, bh4)) | 0; + mid = (mid + Math.imul(ah3, bl4)) | 0; + hi = (hi + Math.imul(ah3, bh4)) | 0; + lo = (lo + Math.imul(al2, bl5)) | 0; + mid = (mid + Math.imul(al2, bh5)) | 0; + mid = (mid + Math.imul(ah2, bl5)) | 0; + hi = (hi + Math.imul(ah2, bh5)) | 0; + lo = (lo + Math.imul(al1, bl6)) | 0; + mid = (mid + Math.imul(al1, bh6)) | 0; + mid = (mid + Math.imul(ah1, bl6)) | 0; + hi = (hi + Math.imul(ah1, bh6)) | 0; + lo = (lo + Math.imul(al0, bl7)) | 0; + mid = (mid + Math.imul(al0, bh7)) | 0; + mid = (mid + Math.imul(ah0, bl7)) | 0; + hi = (hi + Math.imul(ah0, bh7)) | 0; + var w7 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; + c = (((hi + (mid >>> 13)) | 0) + (w7 >>> 26)) | 0; + w7 &= 0x3ffffff; + /* k = 8 */ + lo = Math.imul(al8, bl0); + mid = Math.imul(al8, bh0); + mid = (mid + Math.imul(ah8, bl0)) | 0; + hi = Math.imul(ah8, bh0); + lo = (lo + Math.imul(al7, bl1)) | 0; + mid = (mid + Math.imul(al7, bh1)) | 0; + mid = (mid + Math.imul(ah7, bl1)) | 0; + hi = (hi + Math.imul(ah7, bh1)) | 0; + lo = (lo + Math.imul(al6, bl2)) | 0; + mid = (mid + Math.imul(al6, bh2)) | 0; + mid = (mid + Math.imul(ah6, bl2)) | 0; + hi = (hi + Math.imul(ah6, bh2)) | 0; + lo = (lo + Math.imul(al5, bl3)) | 0; + mid = (mid + Math.imul(al5, bh3)) | 0; + mid = (mid + Math.imul(ah5, bl3)) | 0; + hi = (hi + Math.imul(ah5, bh3)) | 0; + lo = (lo + Math.imul(al4, bl4)) | 0; + mid = (mid + Math.imul(al4, bh4)) | 0; + mid = (mid + Math.imul(ah4, bl4)) | 0; + hi = (hi + Math.imul(ah4, bh4)) | 0; + lo = (lo + Math.imul(al3, bl5)) | 0; + mid = (mid + Math.imul(al3, bh5)) | 0; + mid = (mid + Math.imul(ah3, bl5)) | 0; + hi = (hi + Math.imul(ah3, bh5)) | 0; + lo = (lo + Math.imul(al2, bl6)) | 0; + mid = (mid + Math.imul(al2, bh6)) | 0; + mid = (mid + Math.imul(ah2, bl6)) | 0; + hi = (hi + Math.imul(ah2, bh6)) | 0; + lo = (lo + Math.imul(al1, bl7)) | 0; + mid = (mid + Math.imul(al1, bh7)) | 0; + mid = (mid + Math.imul(ah1, bl7)) | 0; + hi = (hi + Math.imul(ah1, bh7)) | 0; + lo = (lo + Math.imul(al0, bl8)) | 0; + mid = (mid + Math.imul(al0, bh8)) | 0; + mid = (mid + Math.imul(ah0, bl8)) | 0; + hi = (hi + Math.imul(ah0, bh8)) | 0; + var w8 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; + c = (((hi + (mid >>> 13)) | 0) + (w8 >>> 26)) | 0; + w8 &= 0x3ffffff; + /* k = 9 */ + lo = Math.imul(al9, bl0); + mid = Math.imul(al9, bh0); + mid = (mid + Math.imul(ah9, bl0)) | 0; + hi = Math.imul(ah9, bh0); + lo = (lo + Math.imul(al8, bl1)) | 0; + mid = (mid + Math.imul(al8, bh1)) | 0; + mid = (mid + Math.imul(ah8, bl1)) | 0; + hi = (hi + Math.imul(ah8, bh1)) | 0; + lo = (lo + Math.imul(al7, bl2)) | 0; + mid = (mid + Math.imul(al7, bh2)) | 0; + mid = (mid + Math.imul(ah7, bl2)) | 0; + hi = (hi + Math.imul(ah7, bh2)) | 0; + lo = (lo + Math.imul(al6, bl3)) | 0; + mid = (mid + Math.imul(al6, bh3)) | 0; + mid = (mid + Math.imul(ah6, bl3)) | 0; + hi = (hi + Math.imul(ah6, bh3)) | 0; + lo = (lo + Math.imul(al5, bl4)) | 0; + mid = (mid + Math.imul(al5, bh4)) | 0; + mid = (mid + Math.imul(ah5, bl4)) | 0; + hi = (hi + Math.imul(ah5, bh4)) | 0; + lo = (lo + Math.imul(al4, bl5)) | 0; + mid = (mid + Math.imul(al4, bh5)) | 0; + mid = (mid + Math.imul(ah4, bl5)) | 0; + hi = (hi + Math.imul(ah4, bh5)) | 0; + lo = (lo + Math.imul(al3, bl6)) | 0; + mid = (mid + Math.imul(al3, bh6)) | 0; + mid = (mid + Math.imul(ah3, bl6)) | 0; + hi = (hi + Math.imul(ah3, bh6)) | 0; + lo = (lo + Math.imul(al2, bl7)) | 0; + mid = (mid + Math.imul(al2, bh7)) | 0; + mid = (mid + Math.imul(ah2, bl7)) | 0; + hi = (hi + Math.imul(ah2, bh7)) | 0; + lo = (lo + Math.imul(al1, bl8)) | 0; + mid = (mid + Math.imul(al1, bh8)) | 0; + mid = (mid + Math.imul(ah1, bl8)) | 0; + hi = (hi + Math.imul(ah1, bh8)) | 0; + lo = (lo + Math.imul(al0, bl9)) | 0; + mid = (mid + Math.imul(al0, bh9)) | 0; + mid = (mid + Math.imul(ah0, bl9)) | 0; + hi = (hi + Math.imul(ah0, bh9)) | 0; + var w9 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; + c = (((hi + (mid >>> 13)) | 0) + (w9 >>> 26)) | 0; + w9 &= 0x3ffffff; + /* k = 10 */ + lo = Math.imul(al9, bl1); + mid = Math.imul(al9, bh1); + mid = (mid + Math.imul(ah9, bl1)) | 0; + hi = Math.imul(ah9, bh1); + lo = (lo + Math.imul(al8, bl2)) | 0; + mid = (mid + Math.imul(al8, bh2)) | 0; + mid = (mid + Math.imul(ah8, bl2)) | 0; + hi = (hi + Math.imul(ah8, bh2)) | 0; + lo = (lo + Math.imul(al7, bl3)) | 0; + mid = (mid + Math.imul(al7, bh3)) | 0; + mid = (mid + Math.imul(ah7, bl3)) | 0; + hi = (hi + Math.imul(ah7, bh3)) | 0; + lo = (lo + Math.imul(al6, bl4)) | 0; + mid = (mid + Math.imul(al6, bh4)) | 0; + mid = (mid + Math.imul(ah6, bl4)) | 0; + hi = (hi + Math.imul(ah6, bh4)) | 0; + lo = (lo + Math.imul(al5, bl5)) | 0; + mid = (mid + Math.imul(al5, bh5)) | 0; + mid = (mid + Math.imul(ah5, bl5)) | 0; + hi = (hi + Math.imul(ah5, bh5)) | 0; + lo = (lo + Math.imul(al4, bl6)) | 0; + mid = (mid + Math.imul(al4, bh6)) | 0; + mid = (mid + Math.imul(ah4, bl6)) | 0; + hi = (hi + Math.imul(ah4, bh6)) | 0; + lo = (lo + Math.imul(al3, bl7)) | 0; + mid = (mid + Math.imul(al3, bh7)) | 0; + mid = (mid + Math.imul(ah3, bl7)) | 0; + hi = (hi + Math.imul(ah3, bh7)) | 0; + lo = (lo + Math.imul(al2, bl8)) | 0; + mid = (mid + Math.imul(al2, bh8)) | 0; + mid = (mid + Math.imul(ah2, bl8)) | 0; + hi = (hi + Math.imul(ah2, bh8)) | 0; + lo = (lo + Math.imul(al1, bl9)) | 0; + mid = (mid + Math.imul(al1, bh9)) | 0; + mid = (mid + Math.imul(ah1, bl9)) | 0; + hi = (hi + Math.imul(ah1, bh9)) | 0; + var w10 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; + c = (((hi + (mid >>> 13)) | 0) + (w10 >>> 26)) | 0; + w10 &= 0x3ffffff; + /* k = 11 */ + lo = Math.imul(al9, bl2); + mid = Math.imul(al9, bh2); + mid = (mid + Math.imul(ah9, bl2)) | 0; + hi = Math.imul(ah9, bh2); + lo = (lo + Math.imul(al8, bl3)) | 0; + mid = (mid + Math.imul(al8, bh3)) | 0; + mid = (mid + Math.imul(ah8, bl3)) | 0; + hi = (hi + Math.imul(ah8, bh3)) | 0; + lo = (lo + Math.imul(al7, bl4)) | 0; + mid = (mid + Math.imul(al7, bh4)) | 0; + mid = (mid + Math.imul(ah7, bl4)) | 0; + hi = (hi + Math.imul(ah7, bh4)) | 0; + lo = (lo + Math.imul(al6, bl5)) | 0; + mid = (mid + Math.imul(al6, bh5)) | 0; + mid = (mid + Math.imul(ah6, bl5)) | 0; + hi = (hi + Math.imul(ah6, bh5)) | 0; + lo = (lo + Math.imul(al5, bl6)) | 0; + mid = (mid + Math.imul(al5, bh6)) | 0; + mid = (mid + Math.imul(ah5, bl6)) | 0; + hi = (hi + Math.imul(ah5, bh6)) | 0; + lo = (lo + Math.imul(al4, bl7)) | 0; + mid = (mid + Math.imul(al4, bh7)) | 0; + mid = (mid + Math.imul(ah4, bl7)) | 0; + hi = (hi + Math.imul(ah4, bh7)) | 0; + lo = (lo + Math.imul(al3, bl8)) | 0; + mid = (mid + Math.imul(al3, bh8)) | 0; + mid = (mid + Math.imul(ah3, bl8)) | 0; + hi = (hi + Math.imul(ah3, bh8)) | 0; + lo = (lo + Math.imul(al2, bl9)) | 0; + mid = (mid + Math.imul(al2, bh9)) | 0; + mid = (mid + Math.imul(ah2, bl9)) | 0; + hi = (hi + Math.imul(ah2, bh9)) | 0; + var w11 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; + c = (((hi + (mid >>> 13)) | 0) + (w11 >>> 26)) | 0; + w11 &= 0x3ffffff; + /* k = 12 */ + lo = Math.imul(al9, bl3); + mid = Math.imul(al9, bh3); + mid = (mid + Math.imul(ah9, bl3)) | 0; + hi = Math.imul(ah9, bh3); + lo = (lo + Math.imul(al8, bl4)) | 0; + mid = (mid + Math.imul(al8, bh4)) | 0; + mid = (mid + Math.imul(ah8, bl4)) | 0; + hi = (hi + Math.imul(ah8, bh4)) | 0; + lo = (lo + Math.imul(al7, bl5)) | 0; + mid = (mid + Math.imul(al7, bh5)) | 0; + mid = (mid + Math.imul(ah7, bl5)) | 0; + hi = (hi + Math.imul(ah7, bh5)) | 0; + lo = (lo + Math.imul(al6, bl6)) | 0; + mid = (mid + Math.imul(al6, bh6)) | 0; + mid = (mid + Math.imul(ah6, bl6)) | 0; + hi = (hi + Math.imul(ah6, bh6)) | 0; + lo = (lo + Math.imul(al5, bl7)) | 0; + mid = (mid + Math.imul(al5, bh7)) | 0; + mid = (mid + Math.imul(ah5, bl7)) | 0; + hi = (hi + Math.imul(ah5, bh7)) | 0; + lo = (lo + Math.imul(al4, bl8)) | 0; + mid = (mid + Math.imul(al4, bh8)) | 0; + mid = (mid + Math.imul(ah4, bl8)) | 0; + hi = (hi + Math.imul(ah4, bh8)) | 0; + lo = (lo + Math.imul(al3, bl9)) | 0; + mid = (mid + Math.imul(al3, bh9)) | 0; + mid = (mid + Math.imul(ah3, bl9)) | 0; + hi = (hi + Math.imul(ah3, bh9)) | 0; + var w12 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; + c = (((hi + (mid >>> 13)) | 0) + (w12 >>> 26)) | 0; + w12 &= 0x3ffffff; + /* k = 13 */ + lo = Math.imul(al9, bl4); + mid = Math.imul(al9, bh4); + mid = (mid + Math.imul(ah9, bl4)) | 0; + hi = Math.imul(ah9, bh4); + lo = (lo + Math.imul(al8, bl5)) | 0; + mid = (mid + Math.imul(al8, bh5)) | 0; + mid = (mid + Math.imul(ah8, bl5)) | 0; + hi = (hi + Math.imul(ah8, bh5)) | 0; + lo = (lo + Math.imul(al7, bl6)) | 0; + mid = (mid + Math.imul(al7, bh6)) | 0; + mid = (mid + Math.imul(ah7, bl6)) | 0; + hi = (hi + Math.imul(ah7, bh6)) | 0; + lo = (lo + Math.imul(al6, bl7)) | 0; + mid = (mid + Math.imul(al6, bh7)) | 0; + mid = (mid + Math.imul(ah6, bl7)) | 0; + hi = (hi + Math.imul(ah6, bh7)) | 0; + lo = (lo + Math.imul(al5, bl8)) | 0; + mid = (mid + Math.imul(al5, bh8)) | 0; + mid = (mid + Math.imul(ah5, bl8)) | 0; + hi = (hi + Math.imul(ah5, bh8)) | 0; + lo = (lo + Math.imul(al4, bl9)) | 0; + mid = (mid + Math.imul(al4, bh9)) | 0; + mid = (mid + Math.imul(ah4, bl9)) | 0; + hi = (hi + Math.imul(ah4, bh9)) | 0; + var w13 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; + c = (((hi + (mid >>> 13)) | 0) + (w13 >>> 26)) | 0; + w13 &= 0x3ffffff; + /* k = 14 */ + lo = Math.imul(al9, bl5); + mid = Math.imul(al9, bh5); + mid = (mid + Math.imul(ah9, bl5)) | 0; + hi = Math.imul(ah9, bh5); + lo = (lo + Math.imul(al8, bl6)) | 0; + mid = (mid + Math.imul(al8, bh6)) | 0; + mid = (mid + Math.imul(ah8, bl6)) | 0; + hi = (hi + Math.imul(ah8, bh6)) | 0; + lo = (lo + Math.imul(al7, bl7)) | 0; + mid = (mid + Math.imul(al7, bh7)) | 0; + mid = (mid + Math.imul(ah7, bl7)) | 0; + hi = (hi + Math.imul(ah7, bh7)) | 0; + lo = (lo + Math.imul(al6, bl8)) | 0; + mid = (mid + Math.imul(al6, bh8)) | 0; + mid = (mid + Math.imul(ah6, bl8)) | 0; + hi = (hi + Math.imul(ah6, bh8)) | 0; + lo = (lo + Math.imul(al5, bl9)) | 0; + mid = (mid + Math.imul(al5, bh9)) | 0; + mid = (mid + Math.imul(ah5, bl9)) | 0; + hi = (hi + Math.imul(ah5, bh9)) | 0; + var w14 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; + c = (((hi + (mid >>> 13)) | 0) + (w14 >>> 26)) | 0; + w14 &= 0x3ffffff; + /* k = 15 */ + lo = Math.imul(al9, bl6); + mid = Math.imul(al9, bh6); + mid = (mid + Math.imul(ah9, bl6)) | 0; + hi = Math.imul(ah9, bh6); + lo = (lo + Math.imul(al8, bl7)) | 0; + mid = (mid + Math.imul(al8, bh7)) | 0; + mid = (mid + Math.imul(ah8, bl7)) | 0; + hi = (hi + Math.imul(ah8, bh7)) | 0; + lo = (lo + Math.imul(al7, bl8)) | 0; + mid = (mid + Math.imul(al7, bh8)) | 0; + mid = (mid + Math.imul(ah7, bl8)) | 0; + hi = (hi + Math.imul(ah7, bh8)) | 0; + lo = (lo + Math.imul(al6, bl9)) | 0; + mid = (mid + Math.imul(al6, bh9)) | 0; + mid = (mid + Math.imul(ah6, bl9)) | 0; + hi = (hi + Math.imul(ah6, bh9)) | 0; + var w15 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; + c = (((hi + (mid >>> 13)) | 0) + (w15 >>> 26)) | 0; + w15 &= 0x3ffffff; + /* k = 16 */ + lo = Math.imul(al9, bl7); + mid = Math.imul(al9, bh7); + mid = (mid + Math.imul(ah9, bl7)) | 0; + hi = Math.imul(ah9, bh7); + lo = (lo + Math.imul(al8, bl8)) | 0; + mid = (mid + Math.imul(al8, bh8)) | 0; + mid = (mid + Math.imul(ah8, bl8)) | 0; + hi = (hi + Math.imul(ah8, bh8)) | 0; + lo = (lo + Math.imul(al7, bl9)) | 0; + mid = (mid + Math.imul(al7, bh9)) | 0; + mid = (mid + Math.imul(ah7, bl9)) | 0; + hi = (hi + Math.imul(ah7, bh9)) | 0; + var w16 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; + c = (((hi + (mid >>> 13)) | 0) + (w16 >>> 26)) | 0; + w16 &= 0x3ffffff; + /* k = 17 */ + lo = Math.imul(al9, bl8); + mid = Math.imul(al9, bh8); + mid = (mid + Math.imul(ah9, bl8)) | 0; + hi = Math.imul(ah9, bh8); + lo = (lo + Math.imul(al8, bl9)) | 0; + mid = (mid + Math.imul(al8, bh9)) | 0; + mid = (mid + Math.imul(ah8, bl9)) | 0; + hi = (hi + Math.imul(ah8, bh9)) | 0; + var w17 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; + c = (((hi + (mid >>> 13)) | 0) + (w17 >>> 26)) | 0; + w17 &= 0x3ffffff; + /* k = 18 */ + lo = Math.imul(al9, bl9); + mid = Math.imul(al9, bh9); + mid = (mid + Math.imul(ah9, bl9)) | 0; + hi = Math.imul(ah9, bh9); + var w18 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; + c = (((hi + (mid >>> 13)) | 0) + (w18 >>> 26)) | 0; + w18 &= 0x3ffffff; + o[0] = w0; + o[1] = w1; + o[2] = w2; + o[3] = w3; + o[4] = w4; + o[5] = w5; + o[6] = w6; + o[7] = w7; + o[8] = w8; + o[9] = w9; + o[10] = w10; + o[11] = w11; + o[12] = w12; + o[13] = w13; + o[14] = w14; + o[15] = w15; + o[16] = w16; + o[17] = w17; + o[18] = w18; + if (c !== 0) { + o[19] = c; + out.length++; + } + return out; + }; + + // Polyfill comb + if (!Math.imul) { + comb10MulTo = smallMulTo; + } + + function bigMulTo (self, num, out) { + out.negative = num.negative ^ self.negative; + out.length = self.length + num.length; + + var carry = 0; + var hncarry = 0; + for (var k = 0; k < out.length - 1; k++) { + // Sum all words with the same `i + j = k` and accumulate `ncarry`, + // note that ncarry could be >= 0x3ffffff + var ncarry = hncarry; + hncarry = 0; + var rword = carry & 0x3ffffff; + var maxJ = Math.min(k, num.length - 1); + for (var j = Math.max(0, k - self.length + 1); j <= maxJ; j++) { + var i = k - j; + var a = self.words[i] | 0; + var b = num.words[j] | 0; + var r = a * b; + + var lo = r & 0x3ffffff; + ncarry = (ncarry + ((r / 0x4000000) | 0)) | 0; + lo = (lo + rword) | 0; + rword = lo & 0x3ffffff; + ncarry = (ncarry + (lo >>> 26)) | 0; + + hncarry += ncarry >>> 26; + ncarry &= 0x3ffffff; + } + out.words[k] = rword; + carry = ncarry; + ncarry = hncarry; + } + if (carry !== 0) { + out.words[k] = carry; + } else { + out.length--; + } + + return out.strip(); + } + + function jumboMulTo (self, num, out) { + var fftm = new FFTM(); + return fftm.mulp(self, num, out); + } + + BN.prototype.mulTo = function mulTo (num, out) { + var res; + var len = this.length + num.length; + if (this.length === 10 && num.length === 10) { + res = comb10MulTo(this, num, out); + } else if (len < 63) { + res = smallMulTo(this, num, out); + } else if (len < 1024) { + res = bigMulTo(this, num, out); + } else { + res = jumboMulTo(this, num, out); + } + + return res; + }; + + // Cooley-Tukey algorithm for FFT + // slightly revisited to rely on looping instead of recursion + + function FFTM (x, y) { + this.x = x; + this.y = y; + } + + FFTM.prototype.makeRBT = function makeRBT (N) { + var t = new Array(N); + var l = BN.prototype._countBits(N) - 1; + for (var i = 0; i < N; i++) { + t[i] = this.revBin(i, l, N); + } + + return t; + }; + + // Returns binary-reversed representation of `x` + FFTM.prototype.revBin = function revBin (x, l, N) { + if (x === 0 || x === N - 1) return x; + + var rb = 0; + for (var i = 0; i < l; i++) { + rb |= (x & 1) << (l - i - 1); + x >>= 1; + } + + return rb; + }; + + // Performs "tweedling" phase, therefore 'emulating' + // behaviour of the recursive algorithm + FFTM.prototype.permute = function permute (rbt, rws, iws, rtws, itws, N) { + for (var i = 0; i < N; i++) { + rtws[i] = rws[rbt[i]]; + itws[i] = iws[rbt[i]]; + } + }; + + FFTM.prototype.transform = function transform (rws, iws, rtws, itws, N, rbt) { + this.permute(rbt, rws, iws, rtws, itws, N); + + for (var s = 1; s < N; s <<= 1) { + var l = s << 1; + + var rtwdf = Math.cos(2 * Math.PI / l); + var itwdf = Math.sin(2 * Math.PI / l); + + for (var p = 0; p < N; p += l) { + var rtwdf_ = rtwdf; + var itwdf_ = itwdf; + + for (var j = 0; j < s; j++) { + var re = rtws[p + j]; + var ie = itws[p + j]; + + var ro = rtws[p + j + s]; + var io = itws[p + j + s]; + + var rx = rtwdf_ * ro - itwdf_ * io; + + io = rtwdf_ * io + itwdf_ * ro; + ro = rx; + + rtws[p + j] = re + ro; + itws[p + j] = ie + io; + + rtws[p + j + s] = re - ro; + itws[p + j + s] = ie - io; + + /* jshint maxdepth : false */ + if (j !== l) { + rx = rtwdf * rtwdf_ - itwdf * itwdf_; + + itwdf_ = rtwdf * itwdf_ + itwdf * rtwdf_; + rtwdf_ = rx; + } + } + } + } + }; + + FFTM.prototype.guessLen13b = function guessLen13b (n, m) { + var N = Math.max(m, n) | 1; + var odd = N & 1; + var i = 0; + for (N = N / 2 | 0; N; N = N >>> 1) { + i++; + } + + return 1 << i + 1 + odd; + }; + + FFTM.prototype.conjugate = function conjugate (rws, iws, N) { + if (N <= 1) return; + + for (var i = 0; i < N / 2; i++) { + var t = rws[i]; + + rws[i] = rws[N - i - 1]; + rws[N - i - 1] = t; + + t = iws[i]; + + iws[i] = -iws[N - i - 1]; + iws[N - i - 1] = -t; + } + }; + + FFTM.prototype.normalize13b = function normalize13b (ws, N) { + var carry = 0; + for (var i = 0; i < N / 2; i++) { + var w = Math.round(ws[2 * i + 1] / N) * 0x2000 + + Math.round(ws[2 * i] / N) + + carry; + + ws[i] = w & 0x3ffffff; + + if (w < 0x4000000) { + carry = 0; + } else { + carry = w / 0x4000000 | 0; + } + } + + return ws; + }; + + FFTM.prototype.convert13b = function convert13b (ws, len, rws, N) { + var carry = 0; + for (var i = 0; i < len; i++) { + carry = carry + (ws[i] | 0); + + rws[2 * i] = carry & 0x1fff; carry = carry >>> 13; + rws[2 * i + 1] = carry & 0x1fff; carry = carry >>> 13; + } + + // Pad with zeroes + for (i = 2 * len; i < N; ++i) { + rws[i] = 0; + } + + assert(carry === 0); + assert((carry & ~0x1fff) === 0); + }; + + FFTM.prototype.stub = function stub (N) { + var ph = new Array(N); + for (var i = 0; i < N; i++) { + ph[i] = 0; + } + + return ph; + }; + + FFTM.prototype.mulp = function mulp (x, y, out) { + var N = 2 * this.guessLen13b(x.length, y.length); + + var rbt = this.makeRBT(N); + + var _ = this.stub(N); + + var rws = new Array(N); + var rwst = new Array(N); + var iwst = new Array(N); + + var nrws = new Array(N); + var nrwst = new Array(N); + var niwst = new Array(N); + + var rmws = out.words; + rmws.length = N; + + this.convert13b(x.words, x.length, rws, N); + this.convert13b(y.words, y.length, nrws, N); + + this.transform(rws, _, rwst, iwst, N, rbt); + this.transform(nrws, _, nrwst, niwst, N, rbt); + + for (var i = 0; i < N; i++) { + var rx = rwst[i] * nrwst[i] - iwst[i] * niwst[i]; + iwst[i] = rwst[i] * niwst[i] + iwst[i] * nrwst[i]; + rwst[i] = rx; + } + + this.conjugate(rwst, iwst, N); + this.transform(rwst, iwst, rmws, _, N, rbt); + this.conjugate(rmws, _, N); + this.normalize13b(rmws, N); + + out.negative = x.negative ^ y.negative; + out.length = x.length + y.length; + return out.strip(); + }; + + // Multiply `this` by `num` + BN.prototype.mul = function mul (num) { + var out = new BN(null); + out.words = new Array(this.length + num.length); + return this.mulTo(num, out); + }; + + // Multiply employing FFT + BN.prototype.mulf = function mulf (num) { + var out = new BN(null); + out.words = new Array(this.length + num.length); + return jumboMulTo(this, num, out); + }; + + // In-place Multiplication + BN.prototype.imul = function imul (num) { + return this.clone().mulTo(num, this); + }; + + BN.prototype.imuln = function imuln (num) { + assert(typeof num === 'number'); + assert(num < 0x4000000); + + // Carry + var carry = 0; + for (var i = 0; i < this.length; i++) { + var w = (this.words[i] | 0) * num; + var lo = (w & 0x3ffffff) + (carry & 0x3ffffff); + carry >>= 26; + carry += (w / 0x4000000) | 0; + // NOTE: lo is 27bit maximum + carry += lo >>> 26; + this.words[i] = lo & 0x3ffffff; + } + + if (carry !== 0) { + this.words[i] = carry; + this.length++; + } + + return this; + }; + + BN.prototype.muln = function muln (num) { + return this.clone().imuln(num); + }; + + // `this` * `this` + BN.prototype.sqr = function sqr () { + return this.mul(this); + }; + + // `this` * `this` in-place + BN.prototype.isqr = function isqr () { + return this.imul(this.clone()); + }; + + // Math.pow(`this`, `num`) + BN.prototype.pow = function pow (num) { + var w = toBitArray(num); + if (w.length === 0) return new BN(1); + + // Skip leading zeroes + var res = this; + for (var i = 0; i < w.length; i++, res = res.sqr()) { + if (w[i] !== 0) break; + } + + if (++i < w.length) { + for (var q = res.sqr(); i < w.length; i++, q = q.sqr()) { + if (w[i] === 0) continue; + + res = res.mul(q); + } + } + + return res; + }; + + // Shift-left in-place + BN.prototype.iushln = function iushln (bits) { + assert(typeof bits === 'number' && bits >= 0); + var r = bits % 26; + var s = (bits - r) / 26; + var carryMask = (0x3ffffff >>> (26 - r)) << (26 - r); + var i; + + if (r !== 0) { + var carry = 0; + + for (i = 0; i < this.length; i++) { + var newCarry = this.words[i] & carryMask; + var c = ((this.words[i] | 0) - newCarry) << r; + this.words[i] = c | carry; + carry = newCarry >>> (26 - r); + } + + if (carry) { + this.words[i] = carry; + this.length++; + } + } + + if (s !== 0) { + for (i = this.length - 1; i >= 0; i--) { + this.words[i + s] = this.words[i]; + } + + for (i = 0; i < s; i++) { + this.words[i] = 0; + } + + this.length += s; + } + + return this.strip(); + }; + + BN.prototype.ishln = function ishln (bits) { + // TODO(indutny): implement me + assert(this.negative === 0); + return this.iushln(bits); + }; + + // Shift-right in-place + // NOTE: `hint` is a lowest bit before trailing zeroes + // NOTE: if `extended` is present - it will be filled with destroyed bits + BN.prototype.iushrn = function iushrn (bits, hint, extended) { + assert(typeof bits === 'number' && bits >= 0); + var h; + if (hint) { + h = (hint - (hint % 26)) / 26; + } else { + h = 0; + } + + var r = bits % 26; + var s = Math.min((bits - r) / 26, this.length); + var mask = 0x3ffffff ^ ((0x3ffffff >>> r) << r); + var maskedWords = extended; + + h -= s; + h = Math.max(0, h); + + // Extended mode, copy masked part + if (maskedWords) { + for (var i = 0; i < s; i++) { + maskedWords.words[i] = this.words[i]; + } + maskedWords.length = s; + } + + if (s === 0) { + // No-op, we should not move anything at all + } else if (this.length > s) { + this.length -= s; + for (i = 0; i < this.length; i++) { + this.words[i] = this.words[i + s]; + } + } else { + this.words[0] = 0; + this.length = 1; + } + + var carry = 0; + for (i = this.length - 1; i >= 0 && (carry !== 0 || i >= h); i--) { + var word = this.words[i] | 0; + this.words[i] = (carry << (26 - r)) | (word >>> r); + carry = word & mask; + } + + // Push carried bits as a mask + if (maskedWords && carry !== 0) { + maskedWords.words[maskedWords.length++] = carry; + } + + if (this.length === 0) { + this.words[0] = 0; + this.length = 1; + } + + return this.strip(); + }; + + BN.prototype.ishrn = function ishrn (bits, hint, extended) { + // TODO(indutny): implement me + assert(this.negative === 0); + return this.iushrn(bits, hint, extended); + }; + + // Shift-left + BN.prototype.shln = function shln (bits) { + return this.clone().ishln(bits); + }; + + BN.prototype.ushln = function ushln (bits) { + return this.clone().iushln(bits); + }; + + // Shift-right + BN.prototype.shrn = function shrn (bits) { + return this.clone().ishrn(bits); + }; + + BN.prototype.ushrn = function ushrn (bits) { + return this.clone().iushrn(bits); + }; + + // Test if n bit is set + BN.prototype.testn = function testn (bit) { + assert(typeof bit === 'number' && bit >= 0); + var r = bit % 26; + var s = (bit - r) / 26; + var q = 1 << r; + + // Fast case: bit is much higher than all existing words + if (this.length <= s) return false; + + // Check bit and return + var w = this.words[s]; + + return !!(w & q); + }; + + // Return only lowers bits of number (in-place) + BN.prototype.imaskn = function imaskn (bits) { + assert(typeof bits === 'number' && bits >= 0); + var r = bits % 26; + var s = (bits - r) / 26; + + assert(this.negative === 0, 'imaskn works only with positive numbers'); + + if (this.length <= s) { + return this; + } + + if (r !== 0) { + s++; + } + this.length = Math.min(s, this.length); + + if (r !== 0) { + var mask = 0x3ffffff ^ ((0x3ffffff >>> r) << r); + this.words[this.length - 1] &= mask; + } + + return this.strip(); + }; + + // Return only lowers bits of number + BN.prototype.maskn = function maskn (bits) { + return this.clone().imaskn(bits); + }; + + // Add plain number `num` to `this` + BN.prototype.iaddn = function iaddn (num) { + assert(typeof num === 'number'); + assert(num < 0x4000000); + if (num < 0) return this.isubn(-num); + + // Possible sign change + if (this.negative !== 0) { + if (this.length === 1 && (this.words[0] | 0) < num) { + this.words[0] = num - (this.words[0] | 0); + this.negative = 0; + return this; + } + + this.negative = 0; + this.isubn(num); + this.negative = 1; + return this; + } + + // Add without checks + return this._iaddn(num); + }; + + BN.prototype._iaddn = function _iaddn (num) { + this.words[0] += num; + + // Carry + for (var i = 0; i < this.length && this.words[i] >= 0x4000000; i++) { + this.words[i] -= 0x4000000; + if (i === this.length - 1) { + this.words[i + 1] = 1; + } else { + this.words[i + 1]++; + } + } + this.length = Math.max(this.length, i + 1); + + return this; + }; + + // Subtract plain number `num` from `this` + BN.prototype.isubn = function isubn (num) { + assert(typeof num === 'number'); + assert(num < 0x4000000); + if (num < 0) return this.iaddn(-num); + + if (this.negative !== 0) { + this.negative = 0; + this.iaddn(num); + this.negative = 1; + return this; + } + + this.words[0] -= num; + + if (this.length === 1 && this.words[0] < 0) { + this.words[0] = -this.words[0]; + this.negative = 1; + } else { + // Carry + for (var i = 0; i < this.length && this.words[i] < 0; i++) { + this.words[i] += 0x4000000; + this.words[i + 1] -= 1; + } + } + + return this.strip(); + }; + + BN.prototype.addn = function addn (num) { + return this.clone().iaddn(num); + }; + + BN.prototype.subn = function subn (num) { + return this.clone().isubn(num); + }; + + BN.prototype.iabs = function iabs () { + this.negative = 0; + + return this; + }; + + BN.prototype.abs = function abs () { + return this.clone().iabs(); + }; + + BN.prototype._ishlnsubmul = function _ishlnsubmul (num, mul, shift) { + var len = num.length + shift; + var i; + + this._expand(len); + + var w; + var carry = 0; + for (i = 0; i < num.length; i++) { + w = (this.words[i + shift] | 0) + carry; + var right = (num.words[i] | 0) * mul; + w -= right & 0x3ffffff; + carry = (w >> 26) - ((right / 0x4000000) | 0); + this.words[i + shift] = w & 0x3ffffff; + } + for (; i < this.length - shift; i++) { + w = (this.words[i + shift] | 0) + carry; + carry = w >> 26; + this.words[i + shift] = w & 0x3ffffff; + } + + if (carry === 0) return this.strip(); + + // Subtraction overflow + assert(carry === -1); + carry = 0; + for (i = 0; i < this.length; i++) { + w = -(this.words[i] | 0) + carry; + carry = w >> 26; + this.words[i] = w & 0x3ffffff; + } + this.negative = 1; + + return this.strip(); + }; + + BN.prototype._wordDiv = function _wordDiv (num, mode) { + var shift = this.length - num.length; + + var a = this.clone(); + var b = num; + + // Normalize + var bhi = b.words[b.length - 1] | 0; + var bhiBits = this._countBits(bhi); + shift = 26 - bhiBits; + if (shift !== 0) { + b = b.ushln(shift); + a.iushln(shift); + bhi = b.words[b.length - 1] | 0; + } + + // Initialize quotient + var m = a.length - b.length; + var q; + + if (mode !== 'mod') { + q = new BN(null); + q.length = m + 1; + q.words = new Array(q.length); + for (var i = 0; i < q.length; i++) { + q.words[i] = 0; + } + } + + var diff = a.clone()._ishlnsubmul(b, 1, m); + if (diff.negative === 0) { + a = diff; + if (q) { + q.words[m] = 1; + } + } + + for (var j = m - 1; j >= 0; j--) { + var qj = (a.words[b.length + j] | 0) * 0x4000000 + + (a.words[b.length + j - 1] | 0); + + // NOTE: (qj / bhi) is (0x3ffffff * 0x4000000 + 0x3ffffff) / 0x2000000 max + // (0x7ffffff) + qj = Math.min((qj / bhi) | 0, 0x3ffffff); + + a._ishlnsubmul(b, qj, j); + while (a.negative !== 0) { + qj--; + a.negative = 0; + a._ishlnsubmul(b, 1, j); + if (!a.isZero()) { + a.negative ^= 1; + } + } + if (q) { + q.words[j] = qj; + } + } + if (q) { + q.strip(); + } + a.strip(); + + // Denormalize + if (mode !== 'div' && shift !== 0) { + a.iushrn(shift); + } + + return { + div: q || null, + mod: a + }; + }; + + // NOTE: 1) `mode` can be set to `mod` to request mod only, + // to `div` to request div only, or be absent to + // request both div & mod + // 2) `positive` is true if unsigned mod is requested + BN.prototype.divmod = function divmod (num, mode, positive) { + assert(!num.isZero()); + + if (this.isZero()) { + return { + div: new BN(0), + mod: new BN(0) + }; + } + + var div, mod, res; + if (this.negative !== 0 && num.negative === 0) { + res = this.neg().divmod(num, mode); + + if (mode !== 'mod') { + div = res.div.neg(); + } + + if (mode !== 'div') { + mod = res.mod.neg(); + if (positive && mod.negative !== 0) { + mod.iadd(num); + } + } + + return { + div: div, + mod: mod + }; + } + + if (this.negative === 0 && num.negative !== 0) { + res = this.divmod(num.neg(), mode); + + if (mode !== 'mod') { + div = res.div.neg(); + } + + return { + div: div, + mod: res.mod + }; + } + + if ((this.negative & num.negative) !== 0) { + res = this.neg().divmod(num.neg(), mode); + + if (mode !== 'div') { + mod = res.mod.neg(); + if (positive && mod.negative !== 0) { + mod.isub(num); + } + } + + return { + div: res.div, + mod: mod + }; + } + + // Both numbers are positive at this point + + // Strip both numbers to approximate shift value + if (num.length > this.length || this.cmp(num) < 0) { + return { + div: new BN(0), + mod: this + }; + } + + // Very short reduction + if (num.length === 1) { + if (mode === 'div') { + return { + div: this.divn(num.words[0]), + mod: null + }; + } + + if (mode === 'mod') { + return { + div: null, + mod: new BN(this.modn(num.words[0])) + }; + } + + return { + div: this.divn(num.words[0]), + mod: new BN(this.modn(num.words[0])) + }; + } + + return this._wordDiv(num, mode); + }; + + // Find `this` / `num` + BN.prototype.div = function div (num) { + return this.divmod(num, 'div', false).div; + }; + + // Find `this` % `num` + BN.prototype.mod = function mod (num) { + return this.divmod(num, 'mod', false).mod; + }; + + BN.prototype.umod = function umod (num) { + return this.divmod(num, 'mod', true).mod; + }; + + // Find Round(`this` / `num`) + BN.prototype.divRound = function divRound (num) { + var dm = this.divmod(num); + + // Fast case - exact division + if (dm.mod.isZero()) return dm.div; + + var mod = dm.div.negative !== 0 ? dm.mod.isub(num) : dm.mod; + + var half = num.ushrn(1); + var r2 = num.andln(1); + var cmp = mod.cmp(half); + + // Round down + if (cmp < 0 || r2 === 1 && cmp === 0) return dm.div; + + // Round up + return dm.div.negative !== 0 ? dm.div.isubn(1) : dm.div.iaddn(1); + }; + + BN.prototype.modn = function modn (num) { + assert(num <= 0x3ffffff); + var p = (1 << 26) % num; + + var acc = 0; + for (var i = this.length - 1; i >= 0; i--) { + acc = (p * acc + (this.words[i] | 0)) % num; + } + + return acc; + }; + + // In-place division by number + BN.prototype.idivn = function idivn (num) { + assert(num <= 0x3ffffff); + + var carry = 0; + for (var i = this.length - 1; i >= 0; i--) { + var w = (this.words[i] | 0) + carry * 0x4000000; + this.words[i] = (w / num) | 0; + carry = w % num; + } + + return this.strip(); + }; + + BN.prototype.divn = function divn (num) { + return this.clone().idivn(num); + }; + + BN.prototype.egcd = function egcd (p) { + assert(p.negative === 0); + assert(!p.isZero()); + + var x = this; + var y = p.clone(); + + if (x.negative !== 0) { + x = x.umod(p); + } else { + x = x.clone(); + } + + // A * x + B * y = x + var A = new BN(1); + var B = new BN(0); + + // C * x + D * y = y + var C = new BN(0); + var D = new BN(1); + + var g = 0; + + while (x.isEven() && y.isEven()) { + x.iushrn(1); + y.iushrn(1); + ++g; + } + + var yp = y.clone(); + var xp = x.clone(); + + while (!x.isZero()) { + for (var i = 0, im = 1; (x.words[0] & im) === 0 && i < 26; ++i, im <<= 1); + if (i > 0) { + x.iushrn(i); + while (i-- > 0) { + if (A.isOdd() || B.isOdd()) { + A.iadd(yp); + B.isub(xp); + } + + A.iushrn(1); + B.iushrn(1); + } + } + + for (var j = 0, jm = 1; (y.words[0] & jm) === 0 && j < 26; ++j, jm <<= 1); + if (j > 0) { + y.iushrn(j); + while (j-- > 0) { + if (C.isOdd() || D.isOdd()) { + C.iadd(yp); + D.isub(xp); + } + + C.iushrn(1); + D.iushrn(1); + } + } + + if (x.cmp(y) >= 0) { + x.isub(y); + A.isub(C); + B.isub(D); + } else { + y.isub(x); + C.isub(A); + D.isub(B); + } + } + + return { + a: C, + b: D, + gcd: y.iushln(g) + }; + }; + + // This is reduced incarnation of the binary EEA + // above, designated to invert members of the + // _prime_ fields F(p) at a maximal speed + BN.prototype._invmp = function _invmp (p) { + assert(p.negative === 0); + assert(!p.isZero()); + + var a = this; + var b = p.clone(); + + if (a.negative !== 0) { + a = a.umod(p); + } else { + a = a.clone(); + } + + var x1 = new BN(1); + var x2 = new BN(0); + + var delta = b.clone(); + + while (a.cmpn(1) > 0 && b.cmpn(1) > 0) { + for (var i = 0, im = 1; (a.words[0] & im) === 0 && i < 26; ++i, im <<= 1); + if (i > 0) { + a.iushrn(i); + while (i-- > 0) { + if (x1.isOdd()) { + x1.iadd(delta); + } + + x1.iushrn(1); + } + } + + for (var j = 0, jm = 1; (b.words[0] & jm) === 0 && j < 26; ++j, jm <<= 1); + if (j > 0) { + b.iushrn(j); + while (j-- > 0) { + if (x2.isOdd()) { + x2.iadd(delta); + } + + x2.iushrn(1); + } + } + + if (a.cmp(b) >= 0) { + a.isub(b); + x1.isub(x2); + } else { + b.isub(a); + x2.isub(x1); + } + } + + var res; + if (a.cmpn(1) === 0) { + res = x1; + } else { + res = x2; + } + + if (res.cmpn(0) < 0) { + res.iadd(p); + } + + return res; + }; + + BN.prototype.gcd = function gcd (num) { + if (this.isZero()) return num.abs(); + if (num.isZero()) return this.abs(); + + var a = this.clone(); + var b = num.clone(); + a.negative = 0; + b.negative = 0; + + // Remove common factor of two + for (var shift = 0; a.isEven() && b.isEven(); shift++) { + a.iushrn(1); + b.iushrn(1); + } + + do { + while (a.isEven()) { + a.iushrn(1); + } + while (b.isEven()) { + b.iushrn(1); + } + + var r = a.cmp(b); + if (r < 0) { + // Swap `a` and `b` to make `a` always bigger than `b` + var t = a; + a = b; + b = t; + } else if (r === 0 || b.cmpn(1) === 0) { + break; + } + + a.isub(b); + } while (true); + + return b.iushln(shift); + }; + + // Invert number in the field F(num) + BN.prototype.invm = function invm (num) { + return this.egcd(num).a.umod(num); + }; + + BN.prototype.isEven = function isEven () { + return (this.words[0] & 1) === 0; + }; + + BN.prototype.isOdd = function isOdd () { + return (this.words[0] & 1) === 1; + }; + + // And first word and num + BN.prototype.andln = function andln (num) { + return this.words[0] & num; + }; + + // Increment at the bit position in-line + BN.prototype.bincn = function bincn (bit) { + assert(typeof bit === 'number'); + var r = bit % 26; + var s = (bit - r) / 26; + var q = 1 << r; + + // Fast case: bit is much higher than all existing words + if (this.length <= s) { + this._expand(s + 1); + this.words[s] |= q; + return this; + } + + // Add bit and propagate, if needed + var carry = q; + for (var i = s; carry !== 0 && i < this.length; i++) { + var w = this.words[i] | 0; + w += carry; + carry = w >>> 26; + w &= 0x3ffffff; + this.words[i] = w; + } + if (carry !== 0) { + this.words[i] = carry; + this.length++; + } + return this; + }; + + BN.prototype.isZero = function isZero () { + return this.length === 1 && this.words[0] === 0; + }; + + BN.prototype.cmpn = function cmpn (num) { + var negative = num < 0; + + if (this.negative !== 0 && !negative) return -1; + if (this.negative === 0 && negative) return 1; + + this.strip(); + + var res; + if (this.length > 1) { + res = 1; + } else { + if (negative) { + num = -num; + } + + assert(num <= 0x3ffffff, 'Number is too big'); + + var w = this.words[0] | 0; + res = w === num ? 0 : w < num ? -1 : 1; + } + if (this.negative !== 0) return -res | 0; + return res; + }; + + // Compare two numbers and return: + // 1 - if `this` > `num` + // 0 - if `this` == `num` + // -1 - if `this` < `num` + BN.prototype.cmp = function cmp (num) { + if (this.negative !== 0 && num.negative === 0) return -1; + if (this.negative === 0 && num.negative !== 0) return 1; + + var res = this.ucmp(num); + if (this.negative !== 0) return -res | 0; + return res; + }; + + // Unsigned comparison + BN.prototype.ucmp = function ucmp (num) { + // At this point both numbers have the same sign + if (this.length > num.length) return 1; + if (this.length < num.length) return -1; + + var res = 0; + for (var i = this.length - 1; i >= 0; i--) { + var a = this.words[i] | 0; + var b = num.words[i] | 0; + + if (a === b) continue; + if (a < b) { + res = -1; + } else if (a > b) { + res = 1; + } + break; + } + return res; + }; + + BN.prototype.gtn = function gtn (num) { + return this.cmpn(num) === 1; + }; + + BN.prototype.gt = function gt (num) { + return this.cmp(num) === 1; + }; + + BN.prototype.gten = function gten (num) { + return this.cmpn(num) >= 0; + }; + + BN.prototype.gte = function gte (num) { + return this.cmp(num) >= 0; + }; + + BN.prototype.ltn = function ltn (num) { + return this.cmpn(num) === -1; + }; + + BN.prototype.lt = function lt (num) { + return this.cmp(num) === -1; + }; + + BN.prototype.lten = function lten (num) { + return this.cmpn(num) <= 0; + }; + + BN.prototype.lte = function lte (num) { + return this.cmp(num) <= 0; + }; + + BN.prototype.eqn = function eqn (num) { + return this.cmpn(num) === 0; + }; + + BN.prototype.eq = function eq (num) { + return this.cmp(num) === 0; + }; + + // + // A reduce context, could be using montgomery or something better, depending + // on the `m` itself. + // + BN.red = function red (num) { + return new Red(num); + }; + + BN.prototype.toRed = function toRed (ctx) { + assert(!this.red, 'Already a number in reduction context'); + assert(this.negative === 0, 'red works only with positives'); + return ctx.convertTo(this)._forceRed(ctx); + }; + + BN.prototype.fromRed = function fromRed () { + assert(this.red, 'fromRed works only with numbers in reduction context'); + return this.red.convertFrom(this); + }; + + BN.prototype._forceRed = function _forceRed (ctx) { + this.red = ctx; + return this; + }; + + BN.prototype.forceRed = function forceRed (ctx) { + assert(!this.red, 'Already a number in reduction context'); + return this._forceRed(ctx); + }; + + BN.prototype.redAdd = function redAdd (num) { + assert(this.red, 'redAdd works only with red numbers'); + return this.red.add(this, num); + }; + + BN.prototype.redIAdd = function redIAdd (num) { + assert(this.red, 'redIAdd works only with red numbers'); + return this.red.iadd(this, num); + }; + + BN.prototype.redSub = function redSub (num) { + assert(this.red, 'redSub works only with red numbers'); + return this.red.sub(this, num); + }; + + BN.prototype.redISub = function redISub (num) { + assert(this.red, 'redISub works only with red numbers'); + return this.red.isub(this, num); + }; + + BN.prototype.redShl = function redShl (num) { + assert(this.red, 'redShl works only with red numbers'); + return this.red.shl(this, num); + }; + + BN.prototype.redMul = function redMul (num) { + assert(this.red, 'redMul works only with red numbers'); + this.red._verify2(this, num); + return this.red.mul(this, num); + }; + + BN.prototype.redIMul = function redIMul (num) { + assert(this.red, 'redMul works only with red numbers'); + this.red._verify2(this, num); + return this.red.imul(this, num); + }; + + BN.prototype.redSqr = function redSqr () { + assert(this.red, 'redSqr works only with red numbers'); + this.red._verify1(this); + return this.red.sqr(this); + }; + + BN.prototype.redISqr = function redISqr () { + assert(this.red, 'redISqr works only with red numbers'); + this.red._verify1(this); + return this.red.isqr(this); + }; + + // Square root over p + BN.prototype.redSqrt = function redSqrt () { + assert(this.red, 'redSqrt works only with red numbers'); + this.red._verify1(this); + return this.red.sqrt(this); + }; + + BN.prototype.redInvm = function redInvm () { + assert(this.red, 'redInvm works only with red numbers'); + this.red._verify1(this); + return this.red.invm(this); + }; + + // Return negative clone of `this` % `red modulo` + BN.prototype.redNeg = function redNeg () { + assert(this.red, 'redNeg works only with red numbers'); + this.red._verify1(this); + return this.red.neg(this); + }; + + BN.prototype.redPow = function redPow (num) { + assert(this.red && !num.red, 'redPow(normalNum)'); + this.red._verify1(this); + return this.red.pow(this, num); + }; + + // Prime numbers with efficient reduction + var primes = { + k256: null, + p224: null, + p192: null, + p25519: null + }; + + // Pseudo-Mersenne prime + function MPrime (name, p) { + // P = 2 ^ N - K + this.name = name; + this.p = new BN(p, 16); + this.n = this.p.bitLength(); + this.k = new BN(1).iushln(this.n).isub(this.p); + + this.tmp = this._tmp(); + } + + MPrime.prototype._tmp = function _tmp () { + var tmp = new BN(null); + tmp.words = new Array(Math.ceil(this.n / 13)); + return tmp; + }; + + MPrime.prototype.ireduce = function ireduce (num) { + // Assumes that `num` is less than `P^2` + // num = HI * (2 ^ N - K) + HI * K + LO = HI * K + LO (mod P) + var r = num; + var rlen; + + do { + this.split(r, this.tmp); + r = this.imulK(r); + r = r.iadd(this.tmp); + rlen = r.bitLength(); + } while (rlen > this.n); + + var cmp = rlen < this.n ? -1 : r.ucmp(this.p); + if (cmp === 0) { + r.words[0] = 0; + r.length = 1; + } else if (cmp > 0) { + r.isub(this.p); + } else { + r.strip(); + } + + return r; + }; + + MPrime.prototype.split = function split (input, out) { + input.iushrn(this.n, 0, out); + }; + + MPrime.prototype.imulK = function imulK (num) { + return num.imul(this.k); + }; + + function K256 () { + MPrime.call( + this, + 'k256', + 'ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff fffffffe fffffc2f'); + } + inherits(K256, MPrime); + + K256.prototype.split = function split (input, output) { + // 256 = 9 * 26 + 22 + var mask = 0x3fffff; + + var outLen = Math.min(input.length, 9); + for (var i = 0; i < outLen; i++) { + output.words[i] = input.words[i]; + } + output.length = outLen; + + if (input.length <= 9) { + input.words[0] = 0; + input.length = 1; + return; + } + + // Shift by 9 limbs + var prev = input.words[9]; + output.words[output.length++] = prev & mask; + + for (i = 10; i < input.length; i++) { + var next = input.words[i] | 0; + input.words[i - 10] = ((next & mask) << 4) | (prev >>> 22); + prev = next; + } + prev >>>= 22; + input.words[i - 10] = prev; + if (prev === 0 && input.length > 10) { + input.length -= 10; + } else { + input.length -= 9; + } + }; + + K256.prototype.imulK = function imulK (num) { + // K = 0x1000003d1 = [ 0x40, 0x3d1 ] + num.words[num.length] = 0; + num.words[num.length + 1] = 0; + num.length += 2; + + // bounded at: 0x40 * 0x3ffffff + 0x3d0 = 0x100000390 + var lo = 0; + for (var i = 0; i < num.length; i++) { + var w = num.words[i] | 0; + lo += w * 0x3d1; + num.words[i] = lo & 0x3ffffff; + lo = w * 0x40 + ((lo / 0x4000000) | 0); + } + + // Fast length reduction + if (num.words[num.length - 1] === 0) { + num.length--; + if (num.words[num.length - 1] === 0) { + num.length--; + } + } + return num; + }; + + function P224 () { + MPrime.call( + this, + 'p224', + 'ffffffff ffffffff ffffffff ffffffff 00000000 00000000 00000001'); + } + inherits(P224, MPrime); + + function P192 () { + MPrime.call( + this, + 'p192', + 'ffffffff ffffffff ffffffff fffffffe ffffffff ffffffff'); + } + inherits(P192, MPrime); + + function P25519 () { + // 2 ^ 255 - 19 + MPrime.call( + this, + '25519', + '7fffffffffffffff ffffffffffffffff ffffffffffffffff ffffffffffffffed'); + } + inherits(P25519, MPrime); + + P25519.prototype.imulK = function imulK (num) { + // K = 0x13 + var carry = 0; + for (var i = 0; i < num.length; i++) { + var hi = (num.words[i] | 0) * 0x13 + carry; + var lo = hi & 0x3ffffff; + hi >>>= 26; + + num.words[i] = lo; + carry = hi; + } + if (carry !== 0) { + num.words[num.length++] = carry; + } + return num; + }; + + // Exported mostly for testing purposes, use plain name instead + BN._prime = function prime (name) { + // Cached version of prime + if (primes[name]) return primes[name]; + + var prime; + if (name === 'k256') { + prime = new K256(); + } else if (name === 'p224') { + prime = new P224(); + } else if (name === 'p192') { + prime = new P192(); + } else if (name === 'p25519') { + prime = new P25519(); + } else { + throw new Error('Unknown prime ' + name); + } + primes[name] = prime; + + return prime; + }; + + // + // Base reduction engine + // + function Red (m) { + if (typeof m === 'string') { + var prime = BN._prime(m); + this.m = prime.p; + this.prime = prime; + } else { + assert(m.gtn(1), 'modulus must be greater than 1'); + this.m = m; + this.prime = null; + } + } + + Red.prototype._verify1 = function _verify1 (a) { + assert(a.negative === 0, 'red works only with positives'); + assert(a.red, 'red works only with red numbers'); + }; + + Red.prototype._verify2 = function _verify2 (a, b) { + assert((a.negative | b.negative) === 0, 'red works only with positives'); + assert(a.red && a.red === b.red, + 'red works only with red numbers'); + }; + + Red.prototype.imod = function imod (a) { + if (this.prime) return this.prime.ireduce(a)._forceRed(this); + return a.umod(this.m)._forceRed(this); + }; + + Red.prototype.neg = function neg (a) { + if (a.isZero()) { + return a.clone(); + } + + return this.m.sub(a)._forceRed(this); + }; + + Red.prototype.add = function add (a, b) { + this._verify2(a, b); + + var res = a.add(b); + if (res.cmp(this.m) >= 0) { + res.isub(this.m); + } + return res._forceRed(this); + }; + + Red.prototype.iadd = function iadd (a, b) { + this._verify2(a, b); + + var res = a.iadd(b); + if (res.cmp(this.m) >= 0) { + res.isub(this.m); + } + return res; + }; + + Red.prototype.sub = function sub (a, b) { + this._verify2(a, b); + + var res = a.sub(b); + if (res.cmpn(0) < 0) { + res.iadd(this.m); + } + return res._forceRed(this); + }; + + Red.prototype.isub = function isub (a, b) { + this._verify2(a, b); + + var res = a.isub(b); + if (res.cmpn(0) < 0) { + res.iadd(this.m); + } + return res; + }; + + Red.prototype.shl = function shl (a, num) { + this._verify1(a); + return this.imod(a.ushln(num)); + }; + + Red.prototype.imul = function imul (a, b) { + this._verify2(a, b); + return this.imod(a.imul(b)); + }; + + Red.prototype.mul = function mul (a, b) { + this._verify2(a, b); + return this.imod(a.mul(b)); + }; + + Red.prototype.isqr = function isqr (a) { + return this.imul(a, a.clone()); + }; + + Red.prototype.sqr = function sqr (a) { + return this.mul(a, a); + }; + + Red.prototype.sqrt = function sqrt (a) { + if (a.isZero()) return a.clone(); + + var mod3 = this.m.andln(3); + assert(mod3 % 2 === 1); + + // Fast case + if (mod3 === 3) { + var pow = this.m.add(new BN(1)).iushrn(2); + return this.pow(a, pow); + } + + // Tonelli-Shanks algorithm (Totally unoptimized and slow) + // + // Find Q and S, that Q * 2 ^ S = (P - 1) + var q = this.m.subn(1); + var s = 0; + while (!q.isZero() && q.andln(1) === 0) { + s++; + q.iushrn(1); + } + assert(!q.isZero()); + + var one = new BN(1).toRed(this); + var nOne = one.redNeg(); + + // Find quadratic non-residue + // NOTE: Max is such because of generalized Riemann hypothesis. + var lpow = this.m.subn(1).iushrn(1); + var z = this.m.bitLength(); + z = new BN(2 * z * z).toRed(this); + + while (this.pow(z, lpow).cmp(nOne) !== 0) { + z.redIAdd(nOne); + } + + var c = this.pow(z, q); + var r = this.pow(a, q.addn(1).iushrn(1)); + var t = this.pow(a, q); + var m = s; + while (t.cmp(one) !== 0) { + var tmp = t; + for (var i = 0; tmp.cmp(one) !== 0; i++) { + tmp = tmp.redSqr(); + } + assert(i < m); + var b = this.pow(c, new BN(1).iushln(m - i - 1)); + + r = r.redMul(b); + c = b.redSqr(); + t = t.redMul(c); + m = i; + } + + return r; + }; + + Red.prototype.invm = function invm (a) { + var inv = a._invmp(this.m); + if (inv.negative !== 0) { + inv.negative = 0; + return this.imod(inv).redNeg(); + } else { + return this.imod(inv); + } + }; + + Red.prototype.pow = function pow (a, num) { + if (num.isZero()) return new BN(1).toRed(this); + if (num.cmpn(1) === 0) return a.clone(); + + var windowSize = 4; + var wnd = new Array(1 << windowSize); + wnd[0] = new BN(1).toRed(this); + wnd[1] = a; + for (var i = 2; i < wnd.length; i++) { + wnd[i] = this.mul(wnd[i - 1], a); + } + + var res = wnd[0]; + var current = 0; + var currentLen = 0; + var start = num.bitLength() % 26; + if (start === 0) { + start = 26; + } + + for (i = num.length - 1; i >= 0; i--) { + var word = num.words[i]; + for (var j = start - 1; j >= 0; j--) { + var bit = (word >> j) & 1; + if (res !== wnd[0]) { + res = this.sqr(res); + } + + if (bit === 0 && current === 0) { + currentLen = 0; + continue; + } + + current <<= 1; + current |= bit; + currentLen++; + if (currentLen !== windowSize && (i !== 0 || j !== 0)) continue; + + res = this.mul(res, wnd[current]); + currentLen = 0; + current = 0; + } + start = 26; + } + + return res; + }; + + Red.prototype.convertTo = function convertTo (num) { + var r = num.umod(this.m); + + return r === num ? r.clone() : r; + }; + + Red.prototype.convertFrom = function convertFrom (num) { + var res = num.clone(); + res.red = null; + return res; + }; + + // + // Montgomery method engine + // + + BN.mont = function mont (num) { + return new Mont(num); + }; + + function Mont (m) { + Red.call(this, m); + + this.shift = this.m.bitLength(); + if (this.shift % 26 !== 0) { + this.shift += 26 - (this.shift % 26); + } + + this.r = new BN(1).iushln(this.shift); + this.r2 = this.imod(this.r.sqr()); + this.rinv = this.r._invmp(this.m); + + this.minv = this.rinv.mul(this.r).isubn(1).div(this.m); + this.minv = this.minv.umod(this.r); + this.minv = this.r.sub(this.minv); + } + inherits(Mont, Red); + + Mont.prototype.convertTo = function convertTo (num) { + return this.imod(num.ushln(this.shift)); + }; + + Mont.prototype.convertFrom = function convertFrom (num) { + var r = this.imod(num.mul(this.rinv)); + r.red = null; + return r; + }; + + Mont.prototype.imul = function imul (a, b) { + if (a.isZero() || b.isZero()) { + a.words[0] = 0; + a.length = 1; + return a; + } + + var t = a.imul(b); + var c = t.maskn(this.shift).mul(this.minv).imaskn(this.shift).mul(this.m); + var u = t.isub(c).iushrn(this.shift); + var res = u; + + if (u.cmp(this.m) >= 0) { + res = u.isub(this.m); + } else if (u.cmpn(0) < 0) { + res = u.iadd(this.m); + } + + return res._forceRed(this); + }; + + Mont.prototype.mul = function mul (a, b) { + if (a.isZero() || b.isZero()) return new BN(0)._forceRed(this); + + var t = a.mul(b); + var c = t.maskn(this.shift).mul(this.minv).imaskn(this.shift).mul(this.m); + var u = t.isub(c).iushrn(this.shift); + var res = u; + if (u.cmp(this.m) >= 0) { + res = u.isub(this.m); + } else if (u.cmpn(0) < 0) { + res = u.iadd(this.m); + } + + return res._forceRed(this); + }; + + Mont.prototype.invm = function invm (a) { + // (AR)^-1 * R^2 = (A^-1 * R^-1) * R^2 = A^-1 * R + var res = this.imod(a._invmp(this.m).mul(this.r2)); + return res._forceRed(this); + }; +})(typeof module === 'undefined' || module, this); + +},{"24":24}],23:[function(require,module,exports){ +var r; + +module.exports = function rand(len) { + if (!r) + r = new Rand(null); + + return r.generate(len); +}; + +function Rand(rand) { + this.rand = rand; +} +module.exports.Rand = Rand; + +Rand.prototype.generate = function generate(len) { + return this._rand(len); +}; + +// Emulate crypto API using randy +Rand.prototype._rand = function _rand(n) { + if (this.rand.getBytes) + return this.rand.getBytes(n); + + var res = new Uint8Array(n); + for (var i = 0; i < res.length; i++) + res[i] = this.rand.getByte(); + return res; +}; + +if (typeof self === 'object') { + if (self.crypto && self.crypto.getRandomValues) { + // Modern browsers + Rand.prototype._rand = function _rand(n) { + var arr = new Uint8Array(n); + self.crypto.getRandomValues(arr); + return arr; + }; + } else if (self.msCrypto && self.msCrypto.getRandomValues) { + // IE + Rand.prototype._rand = function _rand(n) { + var arr = new Uint8Array(n); + self.msCrypto.getRandomValues(arr); + return arr; + }; + + // Safari's WebWorkers do not have `crypto` + } else if (typeof window === 'object') { + // Old junk + Rand.prototype._rand = function() { + throw new Error('Not implemented yet'); + }; + } +} else { + // Node.js or Web worker with no crypto support + try { + var crypto = require(24); + if (typeof crypto.randomBytes !== 'function') + throw new Error('Not supported'); + + Rand.prototype._rand = function _rand(n) { + return crypto.randomBytes(n); + }; + } catch (e) { + } +} + +},{"24":24}],24:[function(require,module,exports){ + +},{}],25:[function(require,module,exports){ +// based on the aes implimentation in triple sec +// https://github.com/keybase/triplesec +// which is in turn based on the one from crypto-js +// https://code.google.com/p/crypto-js/ + +var Buffer = require(159).Buffer + +function asUInt32Array (buf) { + if (!Buffer.isBuffer(buf)) buf = Buffer.from(buf) + + var len = (buf.length / 4) | 0 + var out = new Array(len) + + for (var i = 0; i < len; i++) { + out[i] = buf.readUInt32BE(i * 4) + } + + return out +} + +function scrubVec (v) { + for (var i = 0; i < v.length; v++) { + v[i] = 0 + } +} + +function cryptBlock (M, keySchedule, SUB_MIX, SBOX, nRounds) { + var SUB_MIX0 = SUB_MIX[0] + var SUB_MIX1 = SUB_MIX[1] + var SUB_MIX2 = SUB_MIX[2] + var SUB_MIX3 = SUB_MIX[3] + + var s0 = M[0] ^ keySchedule[0] + var s1 = M[1] ^ keySchedule[1] + var s2 = M[2] ^ keySchedule[2] + var s3 = M[3] ^ keySchedule[3] + var t0, t1, t2, t3 + var ksRow = 4 + + for (var round = 1; round < nRounds; round++) { + t0 = SUB_MIX0[s0 >>> 24] ^ SUB_MIX1[(s1 >>> 16) & 0xff] ^ SUB_MIX2[(s2 >>> 8) & 0xff] ^ SUB_MIX3[s3 & 0xff] ^ keySchedule[ksRow++] + t1 = SUB_MIX0[s1 >>> 24] ^ SUB_MIX1[(s2 >>> 16) & 0xff] ^ SUB_MIX2[(s3 >>> 8) & 0xff] ^ SUB_MIX3[s0 & 0xff] ^ keySchedule[ksRow++] + t2 = SUB_MIX0[s2 >>> 24] ^ SUB_MIX1[(s3 >>> 16) & 0xff] ^ SUB_MIX2[(s0 >>> 8) & 0xff] ^ SUB_MIX3[s1 & 0xff] ^ keySchedule[ksRow++] + t3 = SUB_MIX0[s3 >>> 24] ^ SUB_MIX1[(s0 >>> 16) & 0xff] ^ SUB_MIX2[(s1 >>> 8) & 0xff] ^ SUB_MIX3[s2 & 0xff] ^ keySchedule[ksRow++] + s0 = t0 + s1 = t1 + s2 = t2 + s3 = t3 + } + + t0 = ((SBOX[s0 >>> 24] << 24) | (SBOX[(s1 >>> 16) & 0xff] << 16) | (SBOX[(s2 >>> 8) & 0xff] << 8) | SBOX[s3 & 0xff]) ^ keySchedule[ksRow++] + t1 = ((SBOX[s1 >>> 24] << 24) | (SBOX[(s2 >>> 16) & 0xff] << 16) | (SBOX[(s3 >>> 8) & 0xff] << 8) | SBOX[s0 & 0xff]) ^ keySchedule[ksRow++] + t2 = ((SBOX[s2 >>> 24] << 24) | (SBOX[(s3 >>> 16) & 0xff] << 16) | (SBOX[(s0 >>> 8) & 0xff] << 8) | SBOX[s1 & 0xff]) ^ keySchedule[ksRow++] + t3 = ((SBOX[s3 >>> 24] << 24) | (SBOX[(s0 >>> 16) & 0xff] << 16) | (SBOX[(s1 >>> 8) & 0xff] << 8) | SBOX[s2 & 0xff]) ^ keySchedule[ksRow++] + t0 = t0 >>> 0 + t1 = t1 >>> 0 + t2 = t2 >>> 0 + t3 = t3 >>> 0 + + return [t0, t1, t2, t3] +} + +// AES constants +var RCON = [0x00, 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80, 0x1b, 0x36] +var G = (function () { + // Compute double table + var d = new Array(256) + for (var j = 0; j < 256; j++) { + if (j < 128) { + d[j] = j << 1 + } else { + d[j] = (j << 1) ^ 0x11b + } + } + + var SBOX = [] + var INV_SBOX = [] + var SUB_MIX = [[], [], [], []] + var INV_SUB_MIX = [[], [], [], []] + + // Walk GF(2^8) + var x = 0 + var xi = 0 + for (var i = 0; i < 256; ++i) { + // Compute sbox + var sx = xi ^ (xi << 1) ^ (xi << 2) ^ (xi << 3) ^ (xi << 4) + sx = (sx >>> 8) ^ (sx & 0xff) ^ 0x63 + SBOX[x] = sx + INV_SBOX[sx] = x + + // Compute multiplication + var x2 = d[x] + var x4 = d[x2] + var x8 = d[x4] + + // Compute sub bytes, mix columns tables + var t = (d[sx] * 0x101) ^ (sx * 0x1010100) + SUB_MIX[0][x] = (t << 24) | (t >>> 8) + SUB_MIX[1][x] = (t << 16) | (t >>> 16) + SUB_MIX[2][x] = (t << 8) | (t >>> 24) + SUB_MIX[3][x] = t + + // Compute inv sub bytes, inv mix columns tables + t = (x8 * 0x1010101) ^ (x4 * 0x10001) ^ (x2 * 0x101) ^ (x * 0x1010100) + INV_SUB_MIX[0][sx] = (t << 24) | (t >>> 8) + INV_SUB_MIX[1][sx] = (t << 16) | (t >>> 16) + INV_SUB_MIX[2][sx] = (t << 8) | (t >>> 24) + INV_SUB_MIX[3][sx] = t + + if (x === 0) { + x = xi = 1 + } else { + x = x2 ^ d[d[d[x8 ^ x2]]] + xi ^= d[d[xi]] + } + } + + return { + SBOX: SBOX, + INV_SBOX: INV_SBOX, + SUB_MIX: SUB_MIX, + INV_SUB_MIX: INV_SUB_MIX + } +})() + +function AES (key) { + this._key = asUInt32Array(key) + this._reset() +} + +AES.blockSize = 4 * 4 +AES.keySize = 256 / 8 +AES.prototype.blockSize = AES.blockSize +AES.prototype.keySize = AES.keySize +AES.prototype._reset = function () { + var keyWords = this._key + var keySize = keyWords.length + var nRounds = keySize + 6 + var ksRows = (nRounds + 1) * 4 + + var keySchedule = [] + for (var k = 0; k < keySize; k++) { + keySchedule[k] = keyWords[k] + } + + for (k = keySize; k < ksRows; k++) { + var t = keySchedule[k - 1] + + if (k % keySize === 0) { + t = (t << 8) | (t >>> 24) + t = + (G.SBOX[t >>> 24] << 24) | + (G.SBOX[(t >>> 16) & 0xff] << 16) | + (G.SBOX[(t >>> 8) & 0xff] << 8) | + (G.SBOX[t & 0xff]) + + t ^= RCON[(k / keySize) | 0] << 24 + } else if (keySize > 6 && k % keySize === 4) { + t = + (G.SBOX[t >>> 24] << 24) | + (G.SBOX[(t >>> 16) & 0xff] << 16) | + (G.SBOX[(t >>> 8) & 0xff] << 8) | + (G.SBOX[t & 0xff]) + } + + keySchedule[k] = keySchedule[k - keySize] ^ t + } + + var invKeySchedule = [] + for (var ik = 0; ik < ksRows; ik++) { + var ksR = ksRows - ik + var tt = keySchedule[ksR - (ik % 4 ? 0 : 4)] + + if (ik < 4 || ksR <= 4) { + invKeySchedule[ik] = tt + } else { + invKeySchedule[ik] = + G.INV_SUB_MIX[0][G.SBOX[tt >>> 24]] ^ + G.INV_SUB_MIX[1][G.SBOX[(tt >>> 16) & 0xff]] ^ + G.INV_SUB_MIX[2][G.SBOX[(tt >>> 8) & 0xff]] ^ + G.INV_SUB_MIX[3][G.SBOX[tt & 0xff]] + } + } + + this._nRounds = nRounds + this._keySchedule = keySchedule + this._invKeySchedule = invKeySchedule +} + +AES.prototype.encryptBlockRaw = function (M) { + M = asUInt32Array(M) + return cryptBlock(M, this._keySchedule, G.SUB_MIX, G.SBOX, this._nRounds) +} + +AES.prototype.encryptBlock = function (M) { + var out = this.encryptBlockRaw(M) + var buf = Buffer.allocUnsafe(16) + buf.writeUInt32BE(out[0], 0) + buf.writeUInt32BE(out[1], 4) + buf.writeUInt32BE(out[2], 8) + buf.writeUInt32BE(out[3], 12) + return buf +} + +AES.prototype.decryptBlock = function (M) { + M = asUInt32Array(M) + + // swap + var m1 = M[1] + M[1] = M[3] + M[3] = m1 + + var out = cryptBlock(M, this._invKeySchedule, G.INV_SUB_MIX, G.INV_SBOX, this._nRounds) + var buf = Buffer.allocUnsafe(16) + buf.writeUInt32BE(out[0], 0) + buf.writeUInt32BE(out[3], 4) + buf.writeUInt32BE(out[2], 8) + buf.writeUInt32BE(out[1], 12) + return buf +} + +AES.prototype.scrub = function () { + scrubVec(this._keySchedule) + scrubVec(this._invKeySchedule) + scrubVec(this._key) +} + +module.exports.AES = AES + +},{"159":159}],26:[function(require,module,exports){ +var aes = require(25) +var Buffer = require(159).Buffer +var Transform = require(56) +var inherits = require(109) +var GHASH = require(30) +var xor = require(53) +var incr32 = require(31) + +function xorTest (a, b) { + var out = 0 + if (a.length !== b.length) out++ + + var len = Math.min(a.length, b.length) + for (var i = 0; i < len; ++i) { + out += (a[i] ^ b[i]) + } + + return out +} + +function calcIv (self, iv, ck) { + if (iv.length === 12) { + self._finID = Buffer.concat([iv, Buffer.from([0, 0, 0, 1])]) + return Buffer.concat([iv, Buffer.from([0, 0, 0, 2])]) + } + var ghash = new GHASH(ck) + var len = iv.length + var toPad = len % 16 + ghash.update(iv) + if (toPad) { + toPad = 16 - toPad + ghash.update(Buffer.alloc(toPad, 0)) + } + ghash.update(Buffer.alloc(8, 0)) + var ivBits = len * 8 + var tail = Buffer.alloc(8) + tail.writeUIntBE(ivBits, 0, 8) + ghash.update(tail) + self._finID = ghash.state + var out = Buffer.from(self._finID) + incr32(out) + return out +} +function StreamCipher (mode, key, iv, decrypt) { + Transform.call(this) + + var h = Buffer.alloc(4, 0) + + this._cipher = new aes.AES(key) + var ck = this._cipher.encryptBlock(h) + this._ghash = new GHASH(ck) + iv = calcIv(this, iv, ck) + + this._prev = Buffer.from(iv) + this._cache = Buffer.allocUnsafe(0) + this._secCache = Buffer.allocUnsafe(0) + this._decrypt = decrypt + this._alen = 0 + this._len = 0 + this._mode = mode + + this._authTag = null + this._called = false +} + +inherits(StreamCipher, Transform) + +StreamCipher.prototype._update = function (chunk) { + if (!this._called && this._alen) { + var rump = 16 - (this._alen % 16) + if (rump < 16) { + rump = Buffer.alloc(rump, 0) + this._ghash.update(rump) + } + } + + this._called = true + var out = this._mode.encrypt(this, chunk) + if (this._decrypt) { + this._ghash.update(chunk) + } else { + this._ghash.update(out) + } + this._len += chunk.length + return out +} + +StreamCipher.prototype._final = function () { + if (this._decrypt && !this._authTag) throw new Error('Unsupported state or unable to authenticate data') + + var tag = xor(this._ghash.final(this._alen * 8, this._len * 8), this._cipher.encryptBlock(this._finID)) + if (this._decrypt && xorTest(tag, this._authTag)) throw new Error('Unsupported state or unable to authenticate data') + + this._authTag = tag + this._cipher.scrub() +} + +StreamCipher.prototype.getAuthTag = function getAuthTag () { + if (this._decrypt || !Buffer.isBuffer(this._authTag)) throw new Error('Attempting to get auth tag in unsupported state') + + return this._authTag +} + +StreamCipher.prototype.setAuthTag = function setAuthTag (tag) { + if (!this._decrypt) throw new Error('Attempting to set auth tag in unsupported state') + + this._authTag = tag +} + +StreamCipher.prototype.setAAD = function setAAD (buf) { + if (this._called) throw new Error('Attempting to set AAD in unsupported state') + + this._ghash.update(buf) + this._alen += buf.length +} + +module.exports = StreamCipher + +},{"109":109,"159":159,"25":25,"30":30,"31":31,"53":53,"56":56}],27:[function(require,module,exports){ +var ciphers = require(29) +var deciphers = require(28) +var modes = require(39) + +function getCiphers () { + return Object.keys(modes) +} + +exports.createCipher = exports.Cipher = ciphers.createCipher +exports.createCipheriv = exports.Cipheriv = ciphers.createCipheriv +exports.createDecipher = exports.Decipher = deciphers.createDecipher +exports.createDecipheriv = exports.Decipheriv = deciphers.createDecipheriv +exports.listCiphers = exports.getCiphers = getCiphers + +},{"28":28,"29":29,"39":39}],28:[function(require,module,exports){ +var AuthCipher = require(26) +var Buffer = require(159).Buffer +var MODES = require(38) +var StreamCipher = require(41) +var Transform = require(56) +var aes = require(25) +var ebtk = require(91) +var inherits = require(109) + +function Decipher (mode, key, iv) { + Transform.call(this) + + this._cache = new Splitter() + this._last = void 0 + this._cipher = new aes.AES(key) + this._prev = Buffer.from(iv) + this._mode = mode + this._autopadding = true +} + +inherits(Decipher, Transform) + +Decipher.prototype._update = function (data) { + this._cache.add(data) + var chunk + var thing + var out = [] + while ((chunk = this._cache.get(this._autopadding))) { + thing = this._mode.decrypt(this, chunk) + out.push(thing) + } + return Buffer.concat(out) +} + +Decipher.prototype._final = function () { + var chunk = this._cache.flush() + if (this._autopadding) { + return unpad(this._mode.decrypt(this, chunk)) + } else if (chunk) { + throw new Error('data not multiple of block length') + } +} + +Decipher.prototype.setAutoPadding = function (setTo) { + this._autopadding = !!setTo + return this +} + +function Splitter () { + this.cache = Buffer.allocUnsafe(0) +} + +Splitter.prototype.add = function (data) { + this.cache = Buffer.concat([this.cache, data]) +} + +Splitter.prototype.get = function (autoPadding) { + var out + if (autoPadding) { + if (this.cache.length > 16) { + out = this.cache.slice(0, 16) + this.cache = this.cache.slice(16) + return out + } + } else { + if (this.cache.length >= 16) { + out = this.cache.slice(0, 16) + this.cache = this.cache.slice(16) + return out + } + } + + return null +} + +Splitter.prototype.flush = function () { + if (this.cache.length) return this.cache +} + +function unpad (last) { + var padded = last[15] + if (padded < 1 || padded > 16) { + throw new Error('unable to decrypt data') + } + var i = -1 + while (++i < padded) { + if (last[(i + (16 - padded))] !== padded) { + throw new Error('unable to decrypt data') + } + } + if (padded === 16) return + + return last.slice(0, 16 - padded) +} + +function createDecipheriv (suite, password, iv) { + var config = MODES[suite.toLowerCase()] + if (!config) throw new TypeError('invalid suite type') + + if (typeof iv === 'string') iv = Buffer.from(iv) + if (config.mode !== 'GCM' && iv.length !== config.iv) throw new TypeError('invalid iv length ' + iv.length) + + if (typeof password === 'string') password = Buffer.from(password) + if (password.length !== config.key / 8) throw new TypeError('invalid key length ' + password.length) + + if (config.type === 'stream') { + return new StreamCipher(config.module, password, iv, true) + } else if (config.type === 'auth') { + return new AuthCipher(config.module, password, iv, true) + } + + return new Decipher(config.module, password, iv) +} + +function createDecipher (suite, password) { + var config = MODES[suite.toLowerCase()] + if (!config) throw new TypeError('invalid suite type') + + var keys = ebtk(password, false, config.key, config.iv) + return createDecipheriv(suite, keys.key, keys.iv) +} + +exports.createDecipher = createDecipher +exports.createDecipheriv = createDecipheriv + +},{"109":109,"159":159,"25":25,"26":26,"38":38,"41":41,"56":56,"91":91}],29:[function(require,module,exports){ +var MODES = require(38) +var AuthCipher = require(26) +var Buffer = require(159).Buffer +var StreamCipher = require(41) +var Transform = require(56) +var aes = require(25) +var ebtk = require(91) +var inherits = require(109) + +function Cipher (mode, key, iv) { + Transform.call(this) + + this._cache = new Splitter() + this._cipher = new aes.AES(key) + this._prev = Buffer.from(iv) + this._mode = mode + this._autopadding = true +} + +inherits(Cipher, Transform) + +Cipher.prototype._update = function (data) { + this._cache.add(data) + var chunk + var thing + var out = [] + + while ((chunk = this._cache.get())) { + thing = this._mode.encrypt(this, chunk) + out.push(thing) + } + + return Buffer.concat(out) +} + +var PADDING = Buffer.alloc(16, 0x10) + +Cipher.prototype._final = function () { + var chunk = this._cache.flush() + if (this._autopadding) { + chunk = this._mode.encrypt(this, chunk) + this._cipher.scrub() + return chunk + } + + if (!chunk.equals(PADDING)) { + this._cipher.scrub() + throw new Error('data not multiple of block length') + } +} + +Cipher.prototype.setAutoPadding = function (setTo) { + this._autopadding = !!setTo + return this +} + +function Splitter () { + this.cache = Buffer.allocUnsafe(0) +} + +Splitter.prototype.add = function (data) { + this.cache = Buffer.concat([this.cache, data]) +} + +Splitter.prototype.get = function () { + if (this.cache.length > 15) { + var out = this.cache.slice(0, 16) + this.cache = this.cache.slice(16) + return out + } + return null +} + +Splitter.prototype.flush = function () { + var len = 16 - this.cache.length + var padBuff = Buffer.allocUnsafe(len) + + var i = -1 + while (++i < len) { + padBuff.writeUInt8(len, i) + } + + return Buffer.concat([this.cache, padBuff]) +} + +function createCipheriv (suite, password, iv) { + var config = MODES[suite.toLowerCase()] + if (!config) throw new TypeError('invalid suite type') + + if (typeof password === 'string') password = Buffer.from(password) + if (password.length !== config.key / 8) throw new TypeError('invalid key length ' + password.length) + + if (typeof iv === 'string') iv = Buffer.from(iv) + if (config.mode !== 'GCM' && iv.length !== config.iv) throw new TypeError('invalid iv length ' + iv.length) + + if (config.type === 'stream') { + return new StreamCipher(config.module, password, iv) + } else if (config.type === 'auth') { + return new AuthCipher(config.module, password, iv) + } + + return new Cipher(config.module, password, iv) +} + +function createCipher (suite, password) { + var config = MODES[suite.toLowerCase()] + if (!config) throw new TypeError('invalid suite type') + + var keys = ebtk(password, false, config.key, config.iv) + return createCipheriv(suite, keys.key, keys.iv) +} + +exports.createCipheriv = createCipheriv +exports.createCipher = createCipher + +},{"109":109,"159":159,"25":25,"26":26,"38":38,"41":41,"56":56,"91":91}],30:[function(require,module,exports){ +var Buffer = require(159).Buffer +var ZEROES = Buffer.alloc(16, 0) + +function toArray (buf) { + return [ + buf.readUInt32BE(0), + buf.readUInt32BE(4), + buf.readUInt32BE(8), + buf.readUInt32BE(12) + ] +} + +function fromArray (out) { + var buf = Buffer.allocUnsafe(16) + buf.writeUInt32BE(out[0] >>> 0, 0) + buf.writeUInt32BE(out[1] >>> 0, 4) + buf.writeUInt32BE(out[2] >>> 0, 8) + buf.writeUInt32BE(out[3] >>> 0, 12) + return buf +} + +function GHASH (key) { + this.h = key + this.state = Buffer.alloc(16, 0) + this.cache = Buffer.allocUnsafe(0) +} + +// from http://bitwiseshiftleft.github.io/sjcl/doc/symbols/src/core_gcm.js.html +// by Juho Vähä-Herttua +GHASH.prototype.ghash = function (block) { + var i = -1 + while (++i < block.length) { + this.state[i] ^= block[i] + } + this._multiply() +} + +GHASH.prototype._multiply = function () { + var Vi = toArray(this.h) + var Zi = [0, 0, 0, 0] + var j, xi, lsbVi + var i = -1 + while (++i < 128) { + xi = (this.state[~~(i / 8)] & (1 << (7 - (i % 8)))) !== 0 + if (xi) { + // Z_i+1 = Z_i ^ V_i + Zi[0] ^= Vi[0] + Zi[1] ^= Vi[1] + Zi[2] ^= Vi[2] + Zi[3] ^= Vi[3] + } + + // Store the value of LSB(V_i) + lsbVi = (Vi[3] & 1) !== 0 + + // V_i+1 = V_i >> 1 + for (j = 3; j > 0; j--) { + Vi[j] = (Vi[j] >>> 1) | ((Vi[j - 1] & 1) << 31) + } + Vi[0] = Vi[0] >>> 1 + + // If LSB(V_i) is 1, V_i+1 = (V_i >> 1) ^ R + if (lsbVi) { + Vi[0] = Vi[0] ^ (0xe1 << 24) + } + } + this.state = fromArray(Zi) +} + +GHASH.prototype.update = function (buf) { + this.cache = Buffer.concat([this.cache, buf]) + var chunk + while (this.cache.length >= 16) { + chunk = this.cache.slice(0, 16) + this.cache = this.cache.slice(16) + this.ghash(chunk) + } +} + +GHASH.prototype.final = function (abl, bl) { + if (this.cache.length) { + this.ghash(Buffer.concat([this.cache, ZEROES], 16)) + } + + this.ghash(fromArray([0, abl, 0, bl])) + return this.state +} + +module.exports = GHASH + +},{"159":159}],31:[function(require,module,exports){ +function incr32 (iv) { + var len = iv.length + var item + while (len--) { + item = iv.readUInt8(len) + if (item === 255) { + iv.writeUInt8(0, len) + } else { + item++ + iv.writeUInt8(item, len) + break + } + } +} +module.exports = incr32 + +},{}],32:[function(require,module,exports){ +var xor = require(53) + +exports.encrypt = function (self, block) { + var data = xor(block, self._prev) + + self._prev = self._cipher.encryptBlock(data) + return self._prev +} + +exports.decrypt = function (self, block) { + var pad = self._prev + + self._prev = block + var out = self._cipher.decryptBlock(block) + + return xor(out, pad) +} + +},{"53":53}],33:[function(require,module,exports){ +var Buffer = require(159).Buffer +var xor = require(53) + +function encryptStart (self, data, decrypt) { + var len = data.length + var out = xor(data, self._cache) + self._cache = self._cache.slice(len) + self._prev = Buffer.concat([self._prev, decrypt ? data : out]) + return out +} + +exports.encrypt = function (self, data, decrypt) { + var out = Buffer.allocUnsafe(0) + var len + + while (data.length) { + if (self._cache.length === 0) { + self._cache = self._cipher.encryptBlock(self._prev) + self._prev = Buffer.allocUnsafe(0) + } + + if (self._cache.length <= data.length) { + len = self._cache.length + out = Buffer.concat([out, encryptStart(self, data.slice(0, len), decrypt)]) + data = data.slice(len) + } else { + out = Buffer.concat([out, encryptStart(self, data, decrypt)]) + break + } + } + + return out +} + +},{"159":159,"53":53}],34:[function(require,module,exports){ +var Buffer = require(159).Buffer + +function encryptByte (self, byteParam, decrypt) { + var pad + var i = -1 + var len = 8 + var out = 0 + var bit, value + while (++i < len) { + pad = self._cipher.encryptBlock(self._prev) + bit = (byteParam & (1 << (7 - i))) ? 0x80 : 0 + value = pad[0] ^ bit + out += ((value & 0x80) >> (i % 8)) + self._prev = shiftIn(self._prev, decrypt ? bit : value) + } + return out +} + +function shiftIn (buffer, value) { + var len = buffer.length + var i = -1 + var out = Buffer.allocUnsafe(buffer.length) + buffer = Buffer.concat([buffer, Buffer.from([value])]) + + while (++i < len) { + out[i] = buffer[i] << 1 | buffer[i + 1] >> (7) + } + + return out +} + +exports.encrypt = function (self, chunk, decrypt) { + var len = chunk.length + var out = Buffer.allocUnsafe(len) + var i = -1 + + while (++i < len) { + out[i] = encryptByte(self, chunk[i], decrypt) + } + + return out +} + +},{"159":159}],35:[function(require,module,exports){ +var Buffer = require(159).Buffer + +function encryptByte (self, byteParam, decrypt) { + var pad = self._cipher.encryptBlock(self._prev) + var out = pad[0] ^ byteParam + + self._prev = Buffer.concat([ + self._prev.slice(1), + Buffer.from([decrypt ? byteParam : out]) + ]) + + return out +} + +exports.encrypt = function (self, chunk, decrypt) { + var len = chunk.length + var out = Buffer.allocUnsafe(len) + var i = -1 + + while (++i < len) { + out[i] = encryptByte(self, chunk[i], decrypt) + } + + return out +} + +},{"159":159}],36:[function(require,module,exports){ +var xor = require(53) +var Buffer = require(159).Buffer +var incr32 = require(31) + +function getBlock (self) { + var out = self._cipher.encryptBlockRaw(self._prev) + incr32(self._prev) + return out +} + +var blockSize = 16 +exports.encrypt = function (self, chunk) { + var chunkNum = Math.ceil(chunk.length / blockSize) + var start = self._cache.length + self._cache = Buffer.concat([ + self._cache, + Buffer.allocUnsafe(chunkNum * blockSize) + ]) + for (var i = 0; i < chunkNum; i++) { + var out = getBlock(self) + var offset = start + i * blockSize + self._cache.writeUInt32BE(out[0], offset + 0) + self._cache.writeUInt32BE(out[1], offset + 4) + self._cache.writeUInt32BE(out[2], offset + 8) + self._cache.writeUInt32BE(out[3], offset + 12) + } + var pad = self._cache.slice(0, chunk.length) + self._cache = self._cache.slice(chunk.length) + return xor(chunk, pad) +} + +},{"159":159,"31":31,"53":53}],37:[function(require,module,exports){ +exports.encrypt = function (self, block) { + return self._cipher.encryptBlock(block) +} + +exports.decrypt = function (self, block) { + return self._cipher.decryptBlock(block) +} + +},{}],38:[function(require,module,exports){ +var modeModules = { + ECB: require(37), + CBC: require(32), + CFB: require(33), + CFB8: require(35), + CFB1: require(34), + OFB: require(40), + CTR: require(36), + GCM: require(36) +} + +var modes = require(39) + +for (var key in modes) { + modes[key].module = modeModules[modes[key].mode] +} + +module.exports = modes + +},{"32":32,"33":33,"34":34,"35":35,"36":36,"37":37,"39":39,"40":40}],39:[function(require,module,exports){ +module.exports={ + "aes-128-ecb": { + "cipher": "AES", + "key": 128, + "iv": 0, + "mode": "ECB", + "type": "block" + }, + "aes-192-ecb": { + "cipher": "AES", + "key": 192, + "iv": 0, + "mode": "ECB", + "type": "block" + }, + "aes-256-ecb": { + "cipher": "AES", + "key": 256, + "iv": 0, + "mode": "ECB", + "type": "block" + }, + "aes-128-cbc": { + "cipher": "AES", + "key": 128, + "iv": 16, + "mode": "CBC", + "type": "block" + }, + "aes-192-cbc": { + "cipher": "AES", + "key": 192, + "iv": 16, + "mode": "CBC", + "type": "block" + }, + "aes-256-cbc": { + "cipher": "AES", + "key": 256, + "iv": 16, + "mode": "CBC", + "type": "block" + }, + "aes128": { + "cipher": "AES", + "key": 128, + "iv": 16, + "mode": "CBC", + "type": "block" + }, + "aes192": { + "cipher": "AES", + "key": 192, + "iv": 16, + "mode": "CBC", + "type": "block" + }, + "aes256": { + "cipher": "AES", + "key": 256, + "iv": 16, + "mode": "CBC", + "type": "block" + }, + "aes-128-cfb": { + "cipher": "AES", + "key": 128, + "iv": 16, + "mode": "CFB", + "type": "stream" + }, + "aes-192-cfb": { + "cipher": "AES", + "key": 192, + "iv": 16, + "mode": "CFB", + "type": "stream" + }, + "aes-256-cfb": { + "cipher": "AES", + "key": 256, + "iv": 16, + "mode": "CFB", + "type": "stream" + }, + "aes-128-cfb8": { + "cipher": "AES", + "key": 128, + "iv": 16, + "mode": "CFB8", + "type": "stream" + }, + "aes-192-cfb8": { + "cipher": "AES", + "key": 192, + "iv": 16, + "mode": "CFB8", + "type": "stream" + }, + "aes-256-cfb8": { + "cipher": "AES", + "key": 256, + "iv": 16, + "mode": "CFB8", + "type": "stream" + }, + "aes-128-cfb1": { + "cipher": "AES", + "key": 128, + "iv": 16, + "mode": "CFB1", + "type": "stream" + }, + "aes-192-cfb1": { + "cipher": "AES", + "key": 192, + "iv": 16, + "mode": "CFB1", + "type": "stream" + }, + "aes-256-cfb1": { + "cipher": "AES", + "key": 256, + "iv": 16, + "mode": "CFB1", + "type": "stream" + }, + "aes-128-ofb": { + "cipher": "AES", + "key": 128, + "iv": 16, + "mode": "OFB", + "type": "stream" + }, + "aes-192-ofb": { + "cipher": "AES", + "key": 192, + "iv": 16, + "mode": "OFB", + "type": "stream" + }, + "aes-256-ofb": { + "cipher": "AES", + "key": 256, + "iv": 16, + "mode": "OFB", + "type": "stream" + }, + "aes-128-ctr": { + "cipher": "AES", + "key": 128, + "iv": 16, + "mode": "CTR", + "type": "stream" + }, + "aes-192-ctr": { + "cipher": "AES", + "key": 192, + "iv": 16, + "mode": "CTR", + "type": "stream" + }, + "aes-256-ctr": { + "cipher": "AES", + "key": 256, + "iv": 16, + "mode": "CTR", + "type": "stream" + }, + "aes-128-gcm": { + "cipher": "AES", + "key": 128, + "iv": 12, + "mode": "GCM", + "type": "auth" + }, + "aes-192-gcm": { + "cipher": "AES", + "key": 192, + "iv": 12, + "mode": "GCM", + "type": "auth" + }, + "aes-256-gcm": { + "cipher": "AES", + "key": 256, + "iv": 12, + "mode": "GCM", + "type": "auth" + } +} + +},{}],40:[function(require,module,exports){ +(function (Buffer){ +var xor = require(53) + +function getBlock (self) { + self._prev = self._cipher.encryptBlock(self._prev) + return self._prev +} + +exports.encrypt = function (self, chunk) { + while (self._cache.length < chunk.length) { + self._cache = Buffer.concat([self._cache, getBlock(self)]) + } + + var pad = self._cache.slice(0, chunk.length) + self._cache = self._cache.slice(chunk.length) + return xor(chunk, pad) +} + +}).call(this,require(54).Buffer) +},{"53":53,"54":54}],41:[function(require,module,exports){ +var aes = require(25) +var Buffer = require(159).Buffer +var Transform = require(56) +var inherits = require(109) + +function StreamCipher (mode, key, iv, decrypt) { + Transform.call(this) + + this._cipher = new aes.AES(key) + this._prev = Buffer.from(iv) + this._cache = Buffer.allocUnsafe(0) + this._secCache = Buffer.allocUnsafe(0) + this._decrypt = decrypt + this._mode = mode +} + +inherits(StreamCipher, Transform) + +StreamCipher.prototype._update = function (chunk) { + return this._mode.encrypt(this, chunk, this._decrypt) +} + +StreamCipher.prototype._final = function () { + this._cipher.scrub() +} + +module.exports = StreamCipher + +},{"109":109,"159":159,"25":25,"56":56}],42:[function(require,module,exports){ +var DES = require(43) +var aes = require(27) +var aesModes = require(38) +var desModes = require(44) +var ebtk = require(91) + +function createCipher (suite, password) { + suite = suite.toLowerCase() + + var keyLen, ivLen + if (aesModes[suite]) { + keyLen = aesModes[suite].key + ivLen = aesModes[suite].iv + } else if (desModes[suite]) { + keyLen = desModes[suite].key * 8 + ivLen = desModes[suite].iv + } else { + throw new TypeError('invalid suite type') + } + + var keys = ebtk(password, false, keyLen, ivLen) + return createCipheriv(suite, keys.key, keys.iv) +} + +function createDecipher (suite, password) { + suite = suite.toLowerCase() + + var keyLen, ivLen + if (aesModes[suite]) { + keyLen = aesModes[suite].key + ivLen = aesModes[suite].iv + } else if (desModes[suite]) { + keyLen = desModes[suite].key * 8 + ivLen = desModes[suite].iv + } else { + throw new TypeError('invalid suite type') + } + + var keys = ebtk(password, false, keyLen, ivLen) + return createDecipheriv(suite, keys.key, keys.iv) +} + +function createCipheriv (suite, key, iv) { + suite = suite.toLowerCase() + if (aesModes[suite]) return aes.createCipheriv(suite, key, iv) + if (desModes[suite]) return new DES({ key: key, iv: iv, mode: suite }) + + throw new TypeError('invalid suite type') +} + +function createDecipheriv (suite, key, iv) { + suite = suite.toLowerCase() + if (aesModes[suite]) return aes.createDecipheriv(suite, key, iv) + if (desModes[suite]) return new DES({ key: key, iv: iv, mode: suite, decrypt: true }) + + throw new TypeError('invalid suite type') +} + +function getCiphers () { + return Object.keys(desModes).concat(aes.getCiphers()) +} + +exports.createCipher = exports.Cipher = createCipher +exports.createCipheriv = exports.Cipheriv = createCipheriv +exports.createDecipher = exports.Decipher = createDecipher +exports.createDecipheriv = exports.Decipheriv = createDecipheriv +exports.listCiphers = exports.getCiphers = getCiphers + +},{"27":27,"38":38,"43":43,"44":44,"91":91}],43:[function(require,module,exports){ +var CipherBase = require(56) +var des = require(64) +var inherits = require(109) +var Buffer = require(159).Buffer + +var modes = { + 'des-ede3-cbc': des.CBC.instantiate(des.EDE), + 'des-ede3': des.EDE, + 'des-ede-cbc': des.CBC.instantiate(des.EDE), + 'des-ede': des.EDE, + 'des-cbc': des.CBC.instantiate(des.DES), + 'des-ecb': des.DES +} +modes.des = modes['des-cbc'] +modes.des3 = modes['des-ede3-cbc'] +module.exports = DES +inherits(DES, CipherBase) +function DES (opts) { + CipherBase.call(this) + var modeName = opts.mode.toLowerCase() + var mode = modes[modeName] + var type + if (opts.decrypt) { + type = 'decrypt' + } else { + type = 'encrypt' + } + var key = opts.key + if (!Buffer.isBuffer(key)) { + key = Buffer.from(key) + } + if (modeName === 'des-ede' || modeName === 'des-ede-cbc') { + key = Buffer.concat([key, key.slice(0, 8)]) + } + var iv = opts.iv + if (!Buffer.isBuffer(iv)) { + iv = Buffer.from(iv) + } + this._des = mode.create({ + key: key, + iv: iv, + type: type + }) +} +DES.prototype._update = function (data) { + return Buffer.from(this._des.update(data)) +} +DES.prototype._final = function () { + return Buffer.from(this._des.final()) +} + +},{"109":109,"159":159,"56":56,"64":64}],44:[function(require,module,exports){ +exports['des-ecb'] = { + key: 8, + iv: 0 +} +exports['des-cbc'] = exports.des = { + key: 8, + iv: 8 +} +exports['des-ede3-cbc'] = exports.des3 = { + key: 24, + iv: 8 +} +exports['des-ede3'] = { + key: 24, + iv: 0 +} +exports['des-ede-cbc'] = { + key: 16, + iv: 8 +} +exports['des-ede'] = { + key: 16, + iv: 0 +} + +},{}],45:[function(require,module,exports){ +(function (Buffer){ +var bn = require(22); +var randomBytes = require(156); +module.exports = crt; +function blind(priv) { + var r = getr(priv); + var blinder = r.toRed(bn.mont(priv.modulus)) + .redPow(new bn(priv.publicExponent)).fromRed(); + return { + blinder: blinder, + unblinder:r.invm(priv.modulus) + }; +} +function crt(msg, priv) { + var blinds = blind(priv); + var len = priv.modulus.byteLength(); + var mod = bn.mont(priv.modulus); + var blinded = new bn(msg).mul(blinds.blinder).umod(priv.modulus); + var c1 = blinded.toRed(bn.mont(priv.prime1)); + var c2 = blinded.toRed(bn.mont(priv.prime2)); + var qinv = priv.coefficient; + var p = priv.prime1; + var q = priv.prime2; + var m1 = c1.redPow(priv.exponent1); + var m2 = c2.redPow(priv.exponent2); + m1 = m1.fromRed(); + m2 = m2.fromRed(); + var h = m1.isub(m2).imul(qinv).umod(p); + h.imul(q); + m2.iadd(h); + return new Buffer(m2.imul(blinds.unblinder).umod(priv.modulus).toArray(false, len)); +} +crt.getr = getr; +function getr(priv) { + var len = priv.modulus.byteLength(); + var r = new bn(randomBytes(len)); + while (r.cmp(priv.modulus) >= 0 || !r.umod(priv.prime1) || !r.umod(priv.prime2)) { + r = new bn(randomBytes(len)); + } + return r; +} + +}).call(this,require(54).Buffer) +},{"156":156,"22":22,"54":54}],46:[function(require,module,exports){ +module.exports = require(47) + +},{"47":47}],47:[function(require,module,exports){ +module.exports={ + "sha224WithRSAEncryption": { + "sign": "rsa", + "hash": "sha224", + "id": "302d300d06096086480165030402040500041c" + }, + "RSA-SHA224": { + "sign": "ecdsa/rsa", + "hash": "sha224", + "id": "302d300d06096086480165030402040500041c" + }, + "sha256WithRSAEncryption": { + "sign": "rsa", + "hash": "sha256", + "id": "3031300d060960864801650304020105000420" + }, + "RSA-SHA256": { + "sign": "ecdsa/rsa", + "hash": "sha256", + "id": "3031300d060960864801650304020105000420" + }, + "sha384WithRSAEncryption": { + "sign": "rsa", + "hash": "sha384", + "id": "3041300d060960864801650304020205000430" + }, + "RSA-SHA384": { + "sign": "ecdsa/rsa", + "hash": "sha384", + "id": "3041300d060960864801650304020205000430" + }, + "sha512WithRSAEncryption": { + "sign": "rsa", + "hash": "sha512", + "id": "3051300d060960864801650304020305000440" + }, + "RSA-SHA512": { + "sign": "ecdsa/rsa", + "hash": "sha512", + "id": "3051300d060960864801650304020305000440" + }, + "RSA-SHA1": { + "sign": "rsa", + "hash": "sha1", + "id": "3021300906052b0e03021a05000414" + }, + "ecdsa-with-SHA1": { + "sign": "ecdsa", + "hash": "sha1", + "id": "" + }, + "sha256": { + "sign": "ecdsa", + "hash": "sha256", + "id": "" + }, + "sha224": { + "sign": "ecdsa", + "hash": "sha224", + "id": "" + }, + "sha384": { + "sign": "ecdsa", + "hash": "sha384", + "id": "" + }, + "sha512": { + "sign": "ecdsa", + "hash": "sha512", + "id": "" + }, + "DSA-SHA": { + "sign": "dsa", + "hash": "sha1", + "id": "" + }, + "DSA-SHA1": { + "sign": "dsa", + "hash": "sha1", + "id": "" + }, + "DSA": { + "sign": "dsa", + "hash": "sha1", + "id": "" + }, + "DSA-WITH-SHA224": { + "sign": "dsa", + "hash": "sha224", + "id": "" + }, + "DSA-SHA224": { + "sign": "dsa", + "hash": "sha224", + "id": "" + }, + "DSA-WITH-SHA256": { + "sign": "dsa", + "hash": "sha256", + "id": "" + }, + "DSA-SHA256": { + "sign": "dsa", + "hash": "sha256", + "id": "" + }, + "DSA-WITH-SHA384": { + "sign": "dsa", + "hash": "sha384", + "id": "" + }, + "DSA-SHA384": { + "sign": "dsa", + "hash": "sha384", + "id": "" + }, + "DSA-WITH-SHA512": { + "sign": "dsa", + "hash": "sha512", + "id": "" + }, + "DSA-SHA512": { + "sign": "dsa", + "hash": "sha512", + "id": "" + }, + "DSA-RIPEMD160": { + "sign": "dsa", + "hash": "rmd160", + "id": "" + }, + "ripemd160WithRSA": { + "sign": "rsa", + "hash": "rmd160", + "id": "3021300906052b2403020105000414" + }, + "RSA-RIPEMD160": { + "sign": "rsa", + "hash": "rmd160", + "id": "3021300906052b2403020105000414" + }, + "md5WithRSAEncryption": { + "sign": "rsa", + "hash": "md5", + "id": "3020300c06082a864886f70d020505000410" + }, + "RSA-MD5": { + "sign": "rsa", + "hash": "md5", + "id": "3020300c06082a864886f70d020505000410" + } +} + +},{}],48:[function(require,module,exports){ +module.exports={ + "1.3.132.0.10": "secp256k1", + "1.3.132.0.33": "p224", + "1.2.840.10045.3.1.1": "p192", + "1.2.840.10045.3.1.7": "p256", + "1.3.132.0.34": "p384", + "1.3.132.0.35": "p521" +} + +},{}],49:[function(require,module,exports){ +(function (Buffer){ +var createHash = require(59) +var stream = require(169) +var inherits = require(109) +var sign = require(50) +var verify = require(51) + +var algorithms = require(47) +Object.keys(algorithms).forEach(function (key) { + algorithms[key].id = new Buffer(algorithms[key].id, 'hex') + algorithms[key.toLowerCase()] = algorithms[key] +}) + +function Sign (algorithm) { + stream.Writable.call(this) + + var data = algorithms[algorithm] + if (!data) throw new Error('Unknown message digest') + + this._hashType = data.hash + this._hash = createHash(data.hash) + this._tag = data.id + this._signType = data.sign +} +inherits(Sign, stream.Writable) + +Sign.prototype._write = function _write (data, _, done) { + this._hash.update(data) + done() +} + +Sign.prototype.update = function update (data, enc) { + if (typeof data === 'string') data = new Buffer(data, enc) + + this._hash.update(data) + return this +} + +Sign.prototype.sign = function signMethod (key, enc) { + this.end() + var hash = this._hash.digest() + var sig = sign(hash, key, this._hashType, this._signType, this._tag) + + return enc ? sig.toString(enc) : sig +} + +function Verify (algorithm) { + stream.Writable.call(this) + + var data = algorithms[algorithm] + if (!data) throw new Error('Unknown message digest') + + this._hash = createHash(data.hash) + this._tag = data.id + this._signType = data.sign +} +inherits(Verify, stream.Writable) + +Verify.prototype._write = function _write (data, _, done) { + this._hash.update(data) + done() +} + +Verify.prototype.update = function update (data, enc) { + if (typeof data === 'string') data = new Buffer(data, enc) + + this._hash.update(data) + return this +} + +Verify.prototype.verify = function verifyMethod (key, sig, enc) { + if (typeof sig === 'string') sig = new Buffer(sig, enc) + + this.end() + var hash = this._hash.digest() + return verify(sig, hash, key, this._signType, this._tag) +} + +function createSign (algorithm) { + return new Sign(algorithm) +} + +function createVerify (algorithm) { + return new Verify(algorithm) +} + +module.exports = { + Sign: createSign, + Verify: createVerify, + createSign: createSign, + createVerify: createVerify +} + +}).call(this,require(54).Buffer) +},{"109":109,"169":169,"47":47,"50":50,"51":51,"54":54,"59":59}],50:[function(require,module,exports){ +(function (Buffer){ +// much of this based on https://github.com/indutny/self-signed/blob/gh-pages/lib/rsa.js +var createHmac = require(61) +var crt = require(45) +var EC = require(74).ec +var BN = require(22) +var parseKeys = require(125) +var curves = require(48) + +function sign (hash, key, hashType, signType, tag) { + var priv = parseKeys(key) + if (priv.curve) { + // rsa keys can be interpreted as ecdsa ones in openssl + if (signType !== 'ecdsa' && signType !== 'ecdsa/rsa') throw new Error('wrong private key type') + return ecSign(hash, priv) + } else if (priv.type === 'dsa') { + if (signType !== 'dsa') throw new Error('wrong private key type') + return dsaSign(hash, priv, hashType) + } else { + if (signType !== 'rsa' && signType !== 'ecdsa/rsa') throw new Error('wrong private key type') + } + hash = Buffer.concat([tag, hash]) + var len = priv.modulus.byteLength() + var pad = [ 0, 1 ] + while (hash.length + pad.length + 1 < len) pad.push(0xff) + pad.push(0x00) + var i = -1 + while (++i < hash.length) pad.push(hash[i]) + + var out = crt(pad, priv) + return out +} + +function ecSign (hash, priv) { + var curveId = curves[priv.curve.join('.')] + if (!curveId) throw new Error('unknown curve ' + priv.curve.join('.')) + + var curve = new EC(curveId) + var key = curve.keyFromPrivate(priv.privateKey) + var out = key.sign(hash) + + return new Buffer(out.toDER()) +} + +function dsaSign (hash, priv, algo) { + var x = priv.params.priv_key + var p = priv.params.p + var q = priv.params.q + var g = priv.params.g + var r = new BN(0) + var k + var H = bits2int(hash, q).mod(q) + var s = false + var kv = getKey(x, q, hash, algo) + while (s === false) { + k = makeKey(q, kv, algo) + r = makeR(g, k, p, q) + s = k.invm(q).imul(H.add(x.mul(r))).mod(q) + if (s.cmpn(0) === 0) { + s = false + r = new BN(0) + } + } + return toDER(r, s) +} + +function toDER (r, s) { + r = r.toArray() + s = s.toArray() + + // Pad values + if (r[0] & 0x80) r = [ 0 ].concat(r) + if (s[0] & 0x80) s = [ 0 ].concat(s) + + var total = r.length + s.length + 4 + var res = [ 0x30, total, 0x02, r.length ] + res = res.concat(r, [ 0x02, s.length ], s) + return new Buffer(res) +} + +function getKey (x, q, hash, algo) { + x = new Buffer(x.toArray()) + if (x.length < q.byteLength()) { + var zeros = new Buffer(q.byteLength() - x.length) + zeros.fill(0) + x = Buffer.concat([ zeros, x ]) + } + var hlen = hash.length + var hbits = bits2octets(hash, q) + var v = new Buffer(hlen) + v.fill(1) + var k = new Buffer(hlen) + k.fill(0) + k = createHmac(algo, k).update(v).update(new Buffer([ 0 ])).update(x).update(hbits).digest() + v = createHmac(algo, k).update(v).digest() + k = createHmac(algo, k).update(v).update(new Buffer([ 1 ])).update(x).update(hbits).digest() + v = createHmac(algo, k).update(v).digest() + return { k: k, v: v } +} + +function bits2int (obits, q) { + var bits = new BN(obits) + var shift = (obits.length << 3) - q.bitLength() + if (shift > 0) bits.ishrn(shift) + return bits +} + +function bits2octets (bits, q) { + bits = bits2int(bits, q) + bits = bits.mod(q) + var out = new Buffer(bits.toArray()) + if (out.length < q.byteLength()) { + var zeros = new Buffer(q.byteLength() - out.length) + zeros.fill(0) + out = Buffer.concat([ zeros, out ]) + } + return out +} + +function makeKey (q, kv, algo) { + var t + var k + + do { + t = new Buffer(0) + + while (t.length * 8 < q.bitLength()) { + kv.v = createHmac(algo, kv.k).update(kv.v).digest() + t = Buffer.concat([ t, kv.v ]) + } + + k = bits2int(t, q) + kv.k = createHmac(algo, kv.k).update(kv.v).update(new Buffer([ 0 ])).digest() + kv.v = createHmac(algo, kv.k).update(kv.v).digest() + } while (k.cmp(q) !== -1) + + return k +} + +function makeR (g, k, p, q) { + return g.toRed(BN.mont(p)).redPow(k).fromRed().mod(q) +} + +module.exports = sign +module.exports.getKey = getKey +module.exports.makeKey = makeKey + +}).call(this,require(54).Buffer) +},{"125":125,"22":22,"45":45,"48":48,"54":54,"61":61,"74":74}],51:[function(require,module,exports){ +(function (Buffer){ +// much of this based on https://github.com/indutny/self-signed/blob/gh-pages/lib/rsa.js +var BN = require(22) +var EC = require(74).ec +var parseKeys = require(125) +var curves = require(48) + +function verify (sig, hash, key, signType, tag) { + var pub = parseKeys(key) + if (pub.type === 'ec') { + // rsa keys can be interpreted as ecdsa ones in openssl + if (signType !== 'ecdsa' && signType !== 'ecdsa/rsa') throw new Error('wrong public key type') + return ecVerify(sig, hash, pub) + } else if (pub.type === 'dsa') { + if (signType !== 'dsa') throw new Error('wrong public key type') + return dsaVerify(sig, hash, pub) + } else { + if (signType !== 'rsa' && signType !== 'ecdsa/rsa') throw new Error('wrong public key type') + } + hash = Buffer.concat([tag, hash]) + var len = pub.modulus.byteLength() + var pad = [ 1 ] + var padNum = 0 + while (hash.length + pad.length + 2 < len) { + pad.push(0xff) + padNum++ + } + pad.push(0x00) + var i = -1 + while (++i < hash.length) { + pad.push(hash[i]) + } + pad = new Buffer(pad) + var red = BN.mont(pub.modulus) + sig = new BN(sig).toRed(red) + + sig = sig.redPow(new BN(pub.publicExponent)) + sig = new Buffer(sig.fromRed().toArray()) + var out = padNum < 8 ? 1 : 0 + len = Math.min(sig.length, pad.length) + if (sig.length !== pad.length) out = 1 + + i = -1 + while (++i < len) out |= sig[i] ^ pad[i] + return out === 0 +} + +function ecVerify (sig, hash, pub) { + var curveId = curves[pub.data.algorithm.curve.join('.')] + if (!curveId) throw new Error('unknown curve ' + pub.data.algorithm.curve.join('.')) + + var curve = new EC(curveId) + var pubkey = pub.data.subjectPrivateKey.data + + return curve.verify(hash, sig, pubkey) +} + +function dsaVerify (sig, hash, pub) { + var p = pub.data.p + var q = pub.data.q + var g = pub.data.g + var y = pub.data.pub_key + var unpacked = parseKeys.signature.decode(sig, 'der') + var s = unpacked.s + var r = unpacked.r + checkValue(s, q) + checkValue(r, q) + var montp = BN.mont(p) + var w = s.invm(q) + var v = g.toRed(montp) + .redPow(new BN(hash).mul(w).mod(q)) + .fromRed() + .mul(y.toRed(montp).redPow(r.mul(w).mod(q)).fromRed()) + .mod(p) + .mod(q) + return v.cmp(r) === 0 +} + +function checkValue (b, q) { + if (b.cmpn(0) <= 0) throw new Error('invalid sig') + if (b.cmp(q) >= q) throw new Error('invalid sig') +} + +module.exports = verify + +}).call(this,require(54).Buffer) +},{"125":125,"22":22,"48":48,"54":54,"74":74}],52:[function(require,module,exports){ +// Copyright Joyent, Inc. and other Node contributors. +// +// Permission is hereby granted, free of charge, to any person obtaining a +// copy of this software and associated documentation files (the +// "Software"), to deal in the Software without restriction, including +// without limitation the rights to use, copy, modify, merge, publish, +// distribute, sublicense, and/or sell copies of the Software, and to permit +// persons to whom the Software is furnished to do so, subject to the +// following conditions: +// +// The above copyright notice and this permission notice shall be included +// in all copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS +// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN +// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, +// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR +// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE +// USE OR OTHER DEALINGS IN THE SOFTWARE. + +var Buffer = require(54).Buffer; + +var isBufferEncoding = Buffer.isEncoding + || function(encoding) { + switch (encoding && encoding.toLowerCase()) { + case 'hex': case 'utf8': case 'utf-8': case 'ascii': case 'binary': case 'base64': case 'ucs2': case 'ucs-2': case 'utf16le': case 'utf-16le': case 'raw': return true; + default: return false; + } + } + + +function assertEncoding(encoding) { + if (encoding && !isBufferEncoding(encoding)) { + throw new Error('Unknown encoding: ' + encoding); + } +} + +// StringDecoder provides an interface for efficiently splitting a series of +// buffers into a series of JS strings without breaking apart multi-byte +// characters. CESU-8 is handled as part of the UTF-8 encoding. +// +// @TODO Handling all encodings inside a single object makes it very difficult +// to reason about this code, so it should be split up in the future. +// @TODO There should be a utf8-strict encoding that rejects invalid UTF-8 code +// points as used by CESU-8. +var StringDecoder = exports.StringDecoder = function(encoding) { + this.encoding = (encoding || 'utf8').toLowerCase().replace(/[-_]/, ''); + assertEncoding(encoding); + switch (this.encoding) { + case 'utf8': + // CESU-8 represents each of Surrogate Pair by 3-bytes + this.surrogateSize = 3; + break; + case 'ucs2': + case 'utf16le': + // UTF-16 represents each of Surrogate Pair by 2-bytes + this.surrogateSize = 2; + this.detectIncompleteChar = utf16DetectIncompleteChar; + break; + case 'base64': + // Base-64 stores 3 bytes in 4 chars, and pads the remainder. + this.surrogateSize = 3; + this.detectIncompleteChar = base64DetectIncompleteChar; + break; + default: + this.write = passThroughWrite; + return; + } + + // Enough space to store all bytes of a single character. UTF-8 needs 4 + // bytes, but CESU-8 may require up to 6 (3 bytes per surrogate). + this.charBuffer = new Buffer(6); + // Number of bytes received for the current incomplete multi-byte character. + this.charReceived = 0; + // Number of bytes expected for the current incomplete multi-byte character. + this.charLength = 0; +}; + + +// write decodes the given buffer and returns it as JS string that is +// guaranteed to not contain any partial multi-byte characters. Any partial +// character found at the end of the buffer is buffered up, and will be +// returned when calling write again with the remaining bytes. +// +// Note: Converting a Buffer containing an orphan surrogate to a String +// currently works, but converting a String to a Buffer (via `new Buffer`, or +// Buffer#write) will replace incomplete surrogates with the unicode +// replacement character. See https://codereview.chromium.org/121173009/ . +StringDecoder.prototype.write = function(buffer) { + var charStr = ''; + // if our last write ended with an incomplete multibyte character + while (this.charLength) { + // determine how many remaining bytes this buffer has to offer for this char + var available = (buffer.length >= this.charLength - this.charReceived) ? + this.charLength - this.charReceived : + buffer.length; + + // add the new bytes to the char buffer + buffer.copy(this.charBuffer, this.charReceived, 0, available); + this.charReceived += available; + + if (this.charReceived < this.charLength) { + // still not enough chars in this buffer? wait for more ... + return ''; + } + + // remove bytes belonging to the current character from the buffer + buffer = buffer.slice(available, buffer.length); + + // get the character that was split + charStr = this.charBuffer.slice(0, this.charLength).toString(this.encoding); + + // CESU-8: lead surrogate (D800-DBFF) is also the incomplete character + var charCode = charStr.charCodeAt(charStr.length - 1); + if (charCode >= 0xD800 && charCode <= 0xDBFF) { + this.charLength += this.surrogateSize; + charStr = ''; + continue; + } + this.charReceived = this.charLength = 0; + + // if there are no more bytes in this buffer, just emit our char + if (buffer.length === 0) { + return charStr; + } + break; + } + + // determine and set charLength / charReceived + this.detectIncompleteChar(buffer); + + var end = buffer.length; + if (this.charLength) { + // buffer the incomplete character bytes we got + buffer.copy(this.charBuffer, 0, buffer.length - this.charReceived, end); + end -= this.charReceived; + } + + charStr += buffer.toString(this.encoding, 0, end); + + var end = charStr.length - 1; + var charCode = charStr.charCodeAt(end); + // CESU-8: lead surrogate (D800-DBFF) is also the incomplete character + if (charCode >= 0xD800 && charCode <= 0xDBFF) { + var size = this.surrogateSize; + this.charLength += size; + this.charReceived += size; + this.charBuffer.copy(this.charBuffer, size, 0, size); + buffer.copy(this.charBuffer, 0, 0, size); + return charStr.substring(0, end); + } + + // or just emit the charStr + return charStr; +}; + +// detectIncompleteChar determines if there is an incomplete UTF-8 character at +// the end of the given buffer. If so, it sets this.charLength to the byte +// length that character, and sets this.charReceived to the number of bytes +// that are available for this character. +StringDecoder.prototype.detectIncompleteChar = function(buffer) { + // determine how many bytes we have to check at the end of this buffer + var i = (buffer.length >= 3) ? 3 : buffer.length; + + // Figure out if one of the last i bytes of our buffer announces an + // incomplete char. + for (; i > 0; i--) { + var c = buffer[buffer.length - i]; + + // See http://en.wikipedia.org/wiki/UTF-8#Description + + // 110XXXXX + if (i == 1 && c >> 5 == 0x06) { + this.charLength = 2; + break; + } + + // 1110XXXX + if (i <= 2 && c >> 4 == 0x0E) { + this.charLength = 3; + break; + } + + // 11110XXX + if (i <= 3 && c >> 3 == 0x1E) { + this.charLength = 4; + break; + } + } + this.charReceived = i; +}; + +StringDecoder.prototype.end = function(buffer) { + var res = ''; + if (buffer && buffer.length) + res = this.write(buffer); + + if (this.charReceived) { + var cr = this.charReceived; + var buf = this.charBuffer; + var enc = this.encoding; + res += buf.slice(0, cr).toString(enc); + } + + return res; +}; + +function passThroughWrite(buffer) { + return buffer.toString(this.encoding); +} + +function utf16DetectIncompleteChar(buffer) { + this.charReceived = buffer.length % 2; + this.charLength = this.charReceived ? 2 : 0; +} + +function base64DetectIncompleteChar(buffer) { + this.charReceived = buffer.length % 3; + this.charLength = this.charReceived ? 3 : 0; +} + +},{"54":54}],53:[function(require,module,exports){ +(function (Buffer){ +module.exports = function xor (a, b) { + var length = Math.min(a.length, b.length) + var buffer = new Buffer(length) + + for (var i = 0; i < length; ++i) { + buffer[i] = a[i] ^ b[i] + } + + return buffer +} + +}).call(this,require(54).Buffer) +},{"54":54}],54:[function(require,module,exports){ +(function (global,Buffer){ +/*! + * The buffer module from node.js, for the browser. + * + * @author Feross Aboukhadijeh + * @license MIT + */ +/* eslint-disable no-proto */ + +'use strict' + +var base64 = require(21) +var ieee754 = require(106) +var isArray = require(55) + +exports.Buffer = Buffer +exports.SlowBuffer = SlowBuffer +exports.INSPECT_MAX_BYTES = 50 +Buffer.poolSize = 8192 // not used by this implementation + +var rootParent = {} + +/** + * If `Buffer.TYPED_ARRAY_SUPPORT`: + * === true Use Uint8Array implementation (fastest) + * === false Use Object implementation (most compatible, even IE6) + * + * Browsers that support typed arrays are IE 10+, Firefox 4+, Chrome 7+, Safari 5.1+, + * Opera 11.6+, iOS 4.2+. + * + * Due to various browser bugs, sometimes the Object implementation will be used even + * when the browser supports typed arrays. + * + * Note: + * + * - Firefox 4-29 lacks support for adding new properties to `Uint8Array` instances, + * See: https://bugzilla.mozilla.org/show_bug.cgi?id=695438. + * + * - Safari 5-7 lacks support for changing the `Object.prototype.constructor` property + * on objects. + * + * - Chrome 9-10 is missing the `TypedArray.prototype.subarray` function. + * + * - IE10 has a broken `TypedArray.prototype.subarray` function which returns arrays of + * incorrect length in some situations. + + * We detect these buggy browsers and set `Buffer.TYPED_ARRAY_SUPPORT` to `false` so they + * get the Object implementation, which is slower but behaves correctly. + */ +Buffer.TYPED_ARRAY_SUPPORT = global.TYPED_ARRAY_SUPPORT !== undefined + ? global.TYPED_ARRAY_SUPPORT + : typedArraySupport() + +function typedArraySupport () { + function Bar () {} + try { + var arr = new Uint8Array(1) + arr.foo = function () { return 42 } + arr.constructor = Bar + return arr.foo() === 42 && // typed array instances can be augmented + arr.constructor === Bar && // constructor can be set + typeof arr.subarray === 'function' && // chrome 9-10 lack `subarray` + arr.subarray(1, 1).byteLength === 0 // ie10 has broken `subarray` + } catch (e) { + return false + } +} + +function kMaxLength () { + return Buffer.TYPED_ARRAY_SUPPORT + ? 0x7fffffff + : 0x3fffffff +} + +/** + * Class: Buffer + * ============= + * + * The Buffer constructor returns instances of `Uint8Array` that are augmented + * with function properties for all the node `Buffer` API functions. We use + * `Uint8Array` so that square bracket notation works as expected -- it returns + * a single octet. + * + * By augmenting the instances, we can avoid modifying the `Uint8Array` + * prototype. + */ +function Buffer (arg) { + if (!(this instanceof Buffer)) { + // Avoid going through an ArgumentsAdaptorTrampoline in the common case. + if (arguments.length > 1) return new Buffer(arg, arguments[1]) + return new Buffer(arg) + } + + if (!Buffer.TYPED_ARRAY_SUPPORT) { + this.length = 0 + this.parent = undefined + } + + // Common case. + if (typeof arg === 'number') { + return fromNumber(this, arg) + } + + // Slightly less common case. + if (typeof arg === 'string') { + return fromString(this, arg, arguments.length > 1 ? arguments[1] : 'utf8') + } + + // Unusual. + return fromObject(this, arg) +} + +function fromNumber (that, length) { + that = allocate(that, length < 0 ? 0 : checked(length) | 0) + if (!Buffer.TYPED_ARRAY_SUPPORT) { + for (var i = 0; i < length; i++) { + that[i] = 0 + } + } + return that +} + +function fromString (that, string, encoding) { + if (typeof encoding !== 'string' || encoding === '') encoding = 'utf8' + + // Assumption: byteLength() return value is always < kMaxLength. + var length = byteLength(string, encoding) | 0 + that = allocate(that, length) + + that.write(string, encoding) + return that +} + +function fromObject (that, object) { + if (Buffer.isBuffer(object)) return fromBuffer(that, object) + + if (isArray(object)) return fromArray(that, object) + + if (object == null) { + throw new TypeError('must start with number, buffer, array or string') + } + + if (typeof ArrayBuffer !== 'undefined') { + if (object.buffer instanceof ArrayBuffer) { + return fromTypedArray(that, object) + } + if (object instanceof ArrayBuffer) { + return fromArrayBuffer(that, object) + } + } + + if (object.length) return fromArrayLike(that, object) + + return fromJsonObject(that, object) +} + +function fromBuffer (that, buffer) { + var length = checked(buffer.length) | 0 + that = allocate(that, length) + buffer.copy(that, 0, 0, length) + return that +} + +function fromArray (that, array) { + var length = checked(array.length) | 0 + that = allocate(that, length) + for (var i = 0; i < length; i += 1) { + that[i] = array[i] & 255 + } + return that +} + +// Duplicate of fromArray() to keep fromArray() monomorphic. +function fromTypedArray (that, array) { + var length = checked(array.length) | 0 + that = allocate(that, length) + // Truncating the elements is probably not what people expect from typed + // arrays with BYTES_PER_ELEMENT > 1 but it's compatible with the behavior + // of the old Buffer constructor. + for (var i = 0; i < length; i += 1) { + that[i] = array[i] & 255 + } + return that +} + +function fromArrayBuffer (that, array) { + if (Buffer.TYPED_ARRAY_SUPPORT) { + // Return an augmented `Uint8Array` instance, for best performance + array.byteLength + that = Buffer._augment(new Uint8Array(array)) + } else { + // Fallback: Return an object instance of the Buffer class + that = fromTypedArray(that, new Uint8Array(array)) + } + return that +} + +function fromArrayLike (that, array) { + var length = checked(array.length) | 0 + that = allocate(that, length) + for (var i = 0; i < length; i += 1) { + that[i] = array[i] & 255 + } + return that +} + +// Deserialize { type: 'Buffer', data: [1,2,3,...] } into a Buffer object. +// Returns a zero-length buffer for inputs that don't conform to the spec. +function fromJsonObject (that, object) { + var array + var length = 0 + + if (object.type === 'Buffer' && isArray(object.data)) { + array = object.data + length = checked(array.length) | 0 + } + that = allocate(that, length) + + for (var i = 0; i < length; i += 1) { + that[i] = array[i] & 255 + } + return that +} + +if (Buffer.TYPED_ARRAY_SUPPORT) { + Buffer.prototype.__proto__ = Uint8Array.prototype + Buffer.__proto__ = Uint8Array +} else { + // pre-set for values that may exist in the future + Buffer.prototype.length = undefined + Buffer.prototype.parent = undefined +} + +function allocate (that, length) { + if (Buffer.TYPED_ARRAY_SUPPORT) { + // Return an augmented `Uint8Array` instance, for best performance + that = Buffer._augment(new Uint8Array(length)) + that.__proto__ = Buffer.prototype + } else { + // Fallback: Return an object instance of the Buffer class + that.length = length + that._isBuffer = true + } + + var fromPool = length !== 0 && length <= Buffer.poolSize >>> 1 + if (fromPool) that.parent = rootParent + + return that +} + +function checked (length) { + // Note: cannot use `length < kMaxLength` here because that fails when + // length is NaN (which is otherwise coerced to zero.) + if (length >= kMaxLength()) { + throw new RangeError('Attempt to allocate Buffer larger than maximum ' + + 'size: 0x' + kMaxLength().toString(16) + ' bytes') + } + return length | 0 +} + +function SlowBuffer (subject, encoding) { + if (!(this instanceof SlowBuffer)) return new SlowBuffer(subject, encoding) + + var buf = new Buffer(subject, encoding) + delete buf.parent + return buf +} + +Buffer.isBuffer = function isBuffer (b) { + return !!(b != null && b._isBuffer) +} + +Buffer.compare = function compare (a, b) { + if (!Buffer.isBuffer(a) || !Buffer.isBuffer(b)) { + throw new TypeError('Arguments must be Buffers') + } + + if (a === b) return 0 + + var x = a.length + var y = b.length + + var i = 0 + var len = Math.min(x, y) + while (i < len) { + if (a[i] !== b[i]) break + + ++i + } + + if (i !== len) { + x = a[i] + y = b[i] + } + + if (x < y) return -1 + if (y < x) return 1 + return 0 +} + +Buffer.isEncoding = function isEncoding (encoding) { + switch (String(encoding).toLowerCase()) { + case 'hex': + case 'utf8': + case 'utf-8': + case 'ascii': + case 'binary': + case 'base64': + case 'raw': + case 'ucs2': + case 'ucs-2': + case 'utf16le': + case 'utf-16le': + return true + default: + return false + } +} + +Buffer.concat = function concat (list, length) { + if (!isArray(list)) throw new TypeError('list argument must be an Array of Buffers.') + + if (list.length === 0) { + return new Buffer(0) + } + + var i + if (length === undefined) { + length = 0 + for (i = 0; i < list.length; i++) { + length += list[i].length + } + } + + var buf = new Buffer(length) + var pos = 0 + for (i = 0; i < list.length; i++) { + var item = list[i] + item.copy(buf, pos) + pos += item.length + } + return buf +} + +function byteLength (string, encoding) { + if (typeof string !== 'string') string = '' + string + + var len = string.length + if (len === 0) return 0 + + // Use a for loop to avoid recursion + var loweredCase = false + for (;;) { + switch (encoding) { + case 'ascii': + case 'binary': + // Deprecated + case 'raw': + case 'raws': + return len + case 'utf8': + case 'utf-8': + return utf8ToBytes(string).length + case 'ucs2': + case 'ucs-2': + case 'utf16le': + case 'utf-16le': + return len * 2 + case 'hex': + return len >>> 1 + case 'base64': + return base64ToBytes(string).length + default: + if (loweredCase) return utf8ToBytes(string).length // assume utf8 + encoding = ('' + encoding).toLowerCase() + loweredCase = true + } + } +} +Buffer.byteLength = byteLength + +function slowToString (encoding, start, end) { + var loweredCase = false + + start = start | 0 + end = end === undefined || end === Infinity ? this.length : end | 0 + + if (!encoding) encoding = 'utf8' + if (start < 0) start = 0 + if (end > this.length) end = this.length + if (end <= start) return '' + + while (true) { + switch (encoding) { + case 'hex': + return hexSlice(this, start, end) + + case 'utf8': + case 'utf-8': + return utf8Slice(this, start, end) + + case 'ascii': + return asciiSlice(this, start, end) + + case 'binary': + return binarySlice(this, start, end) + + case 'base64': + return base64Slice(this, start, end) + + case 'ucs2': + case 'ucs-2': + case 'utf16le': + case 'utf-16le': + return utf16leSlice(this, start, end) + + default: + if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding) + encoding = (encoding + '').toLowerCase() + loweredCase = true + } + } +} + +Buffer.prototype.toString = function toString () { + var length = this.length | 0 + if (length === 0) return '' + if (arguments.length === 0) return utf8Slice(this, 0, length) + return slowToString.apply(this, arguments) +} + +Buffer.prototype.equals = function equals (b) { + if (!Buffer.isBuffer(b)) throw new TypeError('Argument must be a Buffer') + if (this === b) return true + return Buffer.compare(this, b) === 0 +} + +Buffer.prototype.inspect = function inspect () { + var str = '' + var max = exports.INSPECT_MAX_BYTES + if (this.length > 0) { + str = this.toString('hex', 0, max).match(/.{2}/g).join(' ') + if (this.length > max) str += ' ... ' + } + return '' +} + +Buffer.prototype.compare = function compare (b) { + if (!Buffer.isBuffer(b)) throw new TypeError('Argument must be a Buffer') + if (this === b) return 0 + return Buffer.compare(this, b) +} + +Buffer.prototype.indexOf = function indexOf (val, byteOffset) { + if (byteOffset > 0x7fffffff) byteOffset = 0x7fffffff + else if (byteOffset < -0x80000000) byteOffset = -0x80000000 + byteOffset >>= 0 + + if (this.length === 0) return -1 + if (byteOffset >= this.length) return -1 + + // Negative offsets start from the end of the buffer + if (byteOffset < 0) byteOffset = Math.max(this.length + byteOffset, 0) + + if (typeof val === 'string') { + if (val.length === 0) return -1 // special case: looking for empty string always fails + return String.prototype.indexOf.call(this, val, byteOffset) + } + if (Buffer.isBuffer(val)) { + return arrayIndexOf(this, val, byteOffset) + } + if (typeof val === 'number') { + if (Buffer.TYPED_ARRAY_SUPPORT && Uint8Array.prototype.indexOf === 'function') { + return Uint8Array.prototype.indexOf.call(this, val, byteOffset) + } + return arrayIndexOf(this, [ val ], byteOffset) + } + + function arrayIndexOf (arr, val, byteOffset) { + var foundIndex = -1 + for (var i = 0; byteOffset + i < arr.length; i++) { + if (arr[byteOffset + i] === val[foundIndex === -1 ? 0 : i - foundIndex]) { + if (foundIndex === -1) foundIndex = i + if (i - foundIndex + 1 === val.length) return byteOffset + foundIndex + } else { + foundIndex = -1 + } + } + return -1 + } + + throw new TypeError('val must be string, number or Buffer') +} + +// `get` is deprecated +Buffer.prototype.get = function get (offset) { + console.log('.get() is deprecated. Access using array indexes instead.') + return this.readUInt8(offset) +} + +// `set` is deprecated +Buffer.prototype.set = function set (v, offset) { + console.log('.set() is deprecated. Access using array indexes instead.') + return this.writeUInt8(v, offset) +} + +function hexWrite (buf, string, offset, length) { + offset = Number(offset) || 0 + var remaining = buf.length - offset + if (!length) { + length = remaining + } else { + length = Number(length) + if (length > remaining) { + length = remaining + } + } + + // must be an even number of digits + var strLen = string.length + if (strLen % 2 !== 0) throw new Error('Invalid hex string') + + if (length > strLen / 2) { + length = strLen / 2 + } + for (var i = 0; i < length; i++) { + var parsed = parseInt(string.substr(i * 2, 2), 16) + if (isNaN(parsed)) throw new Error('Invalid hex string') + buf[offset + i] = parsed + } + return i +} + +function utf8Write (buf, string, offset, length) { + return blitBuffer(utf8ToBytes(string, buf.length - offset), buf, offset, length) +} + +function asciiWrite (buf, string, offset, length) { + return blitBuffer(asciiToBytes(string), buf, offset, length) +} + +function binaryWrite (buf, string, offset, length) { + return asciiWrite(buf, string, offset, length) +} + +function base64Write (buf, string, offset, length) { + return blitBuffer(base64ToBytes(string), buf, offset, length) +} + +function ucs2Write (buf, string, offset, length) { + return blitBuffer(utf16leToBytes(string, buf.length - offset), buf, offset, length) +} + +Buffer.prototype.write = function write (string, offset, length, encoding) { + // Buffer#write(string) + if (offset === undefined) { + encoding = 'utf8' + length = this.length + offset = 0 + // Buffer#write(string, encoding) + } else if (length === undefined && typeof offset === 'string') { + encoding = offset + length = this.length + offset = 0 + // Buffer#write(string, offset[, length][, encoding]) + } else if (isFinite(offset)) { + offset = offset | 0 + if (isFinite(length)) { + length = length | 0 + if (encoding === undefined) encoding = 'utf8' + } else { + encoding = length + length = undefined + } + // legacy write(string, encoding, offset, length) - remove in v0.13 + } else { + var swap = encoding + encoding = offset + offset = length | 0 + length = swap + } + + var remaining = this.length - offset + if (length === undefined || length > remaining) length = remaining + + if ((string.length > 0 && (length < 0 || offset < 0)) || offset > this.length) { + throw new RangeError('attempt to write outside buffer bounds') + } + + if (!encoding) encoding = 'utf8' + + var loweredCase = false + for (;;) { + switch (encoding) { + case 'hex': + return hexWrite(this, string, offset, length) + + case 'utf8': + case 'utf-8': + return utf8Write(this, string, offset, length) + + case 'ascii': + return asciiWrite(this, string, offset, length) + + case 'binary': + return binaryWrite(this, string, offset, length) + + case 'base64': + // Warning: maxLength not taken into account in base64Write + return base64Write(this, string, offset, length) + + case 'ucs2': + case 'ucs-2': + case 'utf16le': + case 'utf-16le': + return ucs2Write(this, string, offset, length) + + default: + if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding) + encoding = ('' + encoding).toLowerCase() + loweredCase = true + } + } +} + +Buffer.prototype.toJSON = function toJSON () { + return { + type: 'Buffer', + data: Array.prototype.slice.call(this._arr || this, 0) + } +} + +function base64Slice (buf, start, end) { + if (start === 0 && end === buf.length) { + return base64.fromByteArray(buf) + } else { + return base64.fromByteArray(buf.slice(start, end)) + } +} + +function utf8Slice (buf, start, end) { + end = Math.min(buf.length, end) + var res = [] + + var i = start + while (i < end) { + var firstByte = buf[i] + var codePoint = null + var bytesPerSequence = (firstByte > 0xEF) ? 4 + : (firstByte > 0xDF) ? 3 + : (firstByte > 0xBF) ? 2 + : 1 + + if (i + bytesPerSequence <= end) { + var secondByte, thirdByte, fourthByte, tempCodePoint + + switch (bytesPerSequence) { + case 1: + if (firstByte < 0x80) { + codePoint = firstByte + } + break + case 2: + secondByte = buf[i + 1] + if ((secondByte & 0xC0) === 0x80) { + tempCodePoint = (firstByte & 0x1F) << 0x6 | (secondByte & 0x3F) + if (tempCodePoint > 0x7F) { + codePoint = tempCodePoint + } + } + break + case 3: + secondByte = buf[i + 1] + thirdByte = buf[i + 2] + if ((secondByte & 0xC0) === 0x80 && (thirdByte & 0xC0) === 0x80) { + tempCodePoint = (firstByte & 0xF) << 0xC | (secondByte & 0x3F) << 0x6 | (thirdByte & 0x3F) + if (tempCodePoint > 0x7FF && (tempCodePoint < 0xD800 || tempCodePoint > 0xDFFF)) { + codePoint = tempCodePoint + } + } + break + case 4: + secondByte = buf[i + 1] + thirdByte = buf[i + 2] + fourthByte = buf[i + 3] + if ((secondByte & 0xC0) === 0x80 && (thirdByte & 0xC0) === 0x80 && (fourthByte & 0xC0) === 0x80) { + tempCodePoint = (firstByte & 0xF) << 0x12 | (secondByte & 0x3F) << 0xC | (thirdByte & 0x3F) << 0x6 | (fourthByte & 0x3F) + if (tempCodePoint > 0xFFFF && tempCodePoint < 0x110000) { + codePoint = tempCodePoint + } + } + } + } + + if (codePoint === null) { + // we did not generate a valid codePoint so insert a + // replacement char (U+FFFD) and advance only 1 byte + codePoint = 0xFFFD + bytesPerSequence = 1 + } else if (codePoint > 0xFFFF) { + // encode to utf16 (surrogate pair dance) + codePoint -= 0x10000 + res.push(codePoint >>> 10 & 0x3FF | 0xD800) + codePoint = 0xDC00 | codePoint & 0x3FF + } + + res.push(codePoint) + i += bytesPerSequence + } + + return decodeCodePointsArray(res) +} + +// Based on http://stackoverflow.com/a/22747272/680742, the browser with +// the lowest limit is Chrome, with 0x10000 args. +// We go 1 magnitude less, for safety +var MAX_ARGUMENTS_LENGTH = 0x1000 + +function decodeCodePointsArray (codePoints) { + var len = codePoints.length + if (len <= MAX_ARGUMENTS_LENGTH) { + return String.fromCharCode.apply(String, codePoints) // avoid extra slice() + } + + // Decode in chunks to avoid "call stack size exceeded". + var res = '' + var i = 0 + while (i < len) { + res += String.fromCharCode.apply( + String, + codePoints.slice(i, i += MAX_ARGUMENTS_LENGTH) + ) + } + return res +} + +function asciiSlice (buf, start, end) { + var ret = '' + end = Math.min(buf.length, end) + + for (var i = start; i < end; i++) { + ret += String.fromCharCode(buf[i] & 0x7F) + } + return ret +} + +function binarySlice (buf, start, end) { + var ret = '' + end = Math.min(buf.length, end) + + for (var i = start; i < end; i++) { + ret += String.fromCharCode(buf[i]) + } + return ret +} + +function hexSlice (buf, start, end) { + var len = buf.length + + if (!start || start < 0) start = 0 + if (!end || end < 0 || end > len) end = len + + var out = '' + for (var i = start; i < end; i++) { + out += toHex(buf[i]) + } + return out +} + +function utf16leSlice (buf, start, end) { + var bytes = buf.slice(start, end) + var res = '' + for (var i = 0; i < bytes.length; i += 2) { + res += String.fromCharCode(bytes[i] + bytes[i + 1] * 256) + } + return res +} + +Buffer.prototype.slice = function slice (start, end) { + var len = this.length + start = ~~start + end = end === undefined ? len : ~~end + + if (start < 0) { + start += len + if (start < 0) start = 0 + } else if (start > len) { + start = len + } + + if (end < 0) { + end += len + if (end < 0) end = 0 + } else if (end > len) { + end = len + } + + if (end < start) end = start + + var newBuf + if (Buffer.TYPED_ARRAY_SUPPORT) { + newBuf = Buffer._augment(this.subarray(start, end)) + } else { + var sliceLen = end - start + newBuf = new Buffer(sliceLen, undefined) + for (var i = 0; i < sliceLen; i++) { + newBuf[i] = this[i + start] + } + } + + if (newBuf.length) newBuf.parent = this.parent || this + + return newBuf +} + +/* + * Need to make sure that buffer isn't trying to write out of bounds. + */ +function checkOffset (offset, ext, length) { + if ((offset % 1) !== 0 || offset < 0) throw new RangeError('offset is not uint') + if (offset + ext > length) throw new RangeError('Trying to access beyond buffer length') +} + +Buffer.prototype.readUIntLE = function readUIntLE (offset, byteLength, noAssert) { + offset = offset | 0 + byteLength = byteLength | 0 + if (!noAssert) checkOffset(offset, byteLength, this.length) + + var val = this[offset] + var mul = 1 + var i = 0 + while (++i < byteLength && (mul *= 0x100)) { + val += this[offset + i] * mul + } + + return val +} + +Buffer.prototype.readUIntBE = function readUIntBE (offset, byteLength, noAssert) { + offset = offset | 0 + byteLength = byteLength | 0 + if (!noAssert) { + checkOffset(offset, byteLength, this.length) + } + + var val = this[offset + --byteLength] + var mul = 1 + while (byteLength > 0 && (mul *= 0x100)) { + val += this[offset + --byteLength] * mul + } + + return val +} + +Buffer.prototype.readUInt8 = function readUInt8 (offset, noAssert) { + if (!noAssert) checkOffset(offset, 1, this.length) + return this[offset] +} + +Buffer.prototype.readUInt16LE = function readUInt16LE (offset, noAssert) { + if (!noAssert) checkOffset(offset, 2, this.length) + return this[offset] | (this[offset + 1] << 8) +} + +Buffer.prototype.readUInt16BE = function readUInt16BE (offset, noAssert) { + if (!noAssert) checkOffset(offset, 2, this.length) + return (this[offset] << 8) | this[offset + 1] +} + +Buffer.prototype.readUInt32LE = function readUInt32LE (offset, noAssert) { + if (!noAssert) checkOffset(offset, 4, this.length) + + return ((this[offset]) | + (this[offset + 1] << 8) | + (this[offset + 2] << 16)) + + (this[offset + 3] * 0x1000000) +} + +Buffer.prototype.readUInt32BE = function readUInt32BE (offset, noAssert) { + if (!noAssert) checkOffset(offset, 4, this.length) + + return (this[offset] * 0x1000000) + + ((this[offset + 1] << 16) | + (this[offset + 2] << 8) | + this[offset + 3]) +} + +Buffer.prototype.readIntLE = function readIntLE (offset, byteLength, noAssert) { + offset = offset | 0 + byteLength = byteLength | 0 + if (!noAssert) checkOffset(offset, byteLength, this.length) + + var val = this[offset] + var mul = 1 + var i = 0 + while (++i < byteLength && (mul *= 0x100)) { + val += this[offset + i] * mul + } + mul *= 0x80 + + if (val >= mul) val -= Math.pow(2, 8 * byteLength) + + return val +} + +Buffer.prototype.readIntBE = function readIntBE (offset, byteLength, noAssert) { + offset = offset | 0 + byteLength = byteLength | 0 + if (!noAssert) checkOffset(offset, byteLength, this.length) + + var i = byteLength + var mul = 1 + var val = this[offset + --i] + while (i > 0 && (mul *= 0x100)) { + val += this[offset + --i] * mul + } + mul *= 0x80 + + if (val >= mul) val -= Math.pow(2, 8 * byteLength) + + return val +} + +Buffer.prototype.readInt8 = function readInt8 (offset, noAssert) { + if (!noAssert) checkOffset(offset, 1, this.length) + if (!(this[offset] & 0x80)) return (this[offset]) + return ((0xff - this[offset] + 1) * -1) +} + +Buffer.prototype.readInt16LE = function readInt16LE (offset, noAssert) { + if (!noAssert) checkOffset(offset, 2, this.length) + var val = this[offset] | (this[offset + 1] << 8) + return (val & 0x8000) ? val | 0xFFFF0000 : val +} + +Buffer.prototype.readInt16BE = function readInt16BE (offset, noAssert) { + if (!noAssert) checkOffset(offset, 2, this.length) + var val = this[offset + 1] | (this[offset] << 8) + return (val & 0x8000) ? val | 0xFFFF0000 : val +} + +Buffer.prototype.readInt32LE = function readInt32LE (offset, noAssert) { + if (!noAssert) checkOffset(offset, 4, this.length) + + return (this[offset]) | + (this[offset + 1] << 8) | + (this[offset + 2] << 16) | + (this[offset + 3] << 24) +} + +Buffer.prototype.readInt32BE = function readInt32BE (offset, noAssert) { + if (!noAssert) checkOffset(offset, 4, this.length) + + return (this[offset] << 24) | + (this[offset + 1] << 16) | + (this[offset + 2] << 8) | + (this[offset + 3]) +} + +Buffer.prototype.readFloatLE = function readFloatLE (offset, noAssert) { + if (!noAssert) checkOffset(offset, 4, this.length) + return ieee754.read(this, offset, true, 23, 4) +} + +Buffer.prototype.readFloatBE = function readFloatBE (offset, noAssert) { + if (!noAssert) checkOffset(offset, 4, this.length) + return ieee754.read(this, offset, false, 23, 4) +} + +Buffer.prototype.readDoubleLE = function readDoubleLE (offset, noAssert) { + if (!noAssert) checkOffset(offset, 8, this.length) + return ieee754.read(this, offset, true, 52, 8) +} + +Buffer.prototype.readDoubleBE = function readDoubleBE (offset, noAssert) { + if (!noAssert) checkOffset(offset, 8, this.length) + return ieee754.read(this, offset, false, 52, 8) +} + +function checkInt (buf, value, offset, ext, max, min) { + if (!Buffer.isBuffer(buf)) throw new TypeError('buffer must be a Buffer instance') + if (value > max || value < min) throw new RangeError('value is out of bounds') + if (offset + ext > buf.length) throw new RangeError('index out of range') +} + +Buffer.prototype.writeUIntLE = function writeUIntLE (value, offset, byteLength, noAssert) { + value = +value + offset = offset | 0 + byteLength = byteLength | 0 + if (!noAssert) checkInt(this, value, offset, byteLength, Math.pow(2, 8 * byteLength), 0) + + var mul = 1 + var i = 0 + this[offset] = value & 0xFF + while (++i < byteLength && (mul *= 0x100)) { + this[offset + i] = (value / mul) & 0xFF + } + + return offset + byteLength +} + +Buffer.prototype.writeUIntBE = function writeUIntBE (value, offset, byteLength, noAssert) { + value = +value + offset = offset | 0 + byteLength = byteLength | 0 + if (!noAssert) checkInt(this, value, offset, byteLength, Math.pow(2, 8 * byteLength), 0) + + var i = byteLength - 1 + var mul = 1 + this[offset + i] = value & 0xFF + while (--i >= 0 && (mul *= 0x100)) { + this[offset + i] = (value / mul) & 0xFF + } + + return offset + byteLength +} + +Buffer.prototype.writeUInt8 = function writeUInt8 (value, offset, noAssert) { + value = +value + offset = offset | 0 + if (!noAssert) checkInt(this, value, offset, 1, 0xff, 0) + if (!Buffer.TYPED_ARRAY_SUPPORT) value = Math.floor(value) + this[offset] = (value & 0xff) + return offset + 1 +} + +function objectWriteUInt16 (buf, value, offset, littleEndian) { + if (value < 0) value = 0xffff + value + 1 + for (var i = 0, j = Math.min(buf.length - offset, 2); i < j; i++) { + buf[offset + i] = (value & (0xff << (8 * (littleEndian ? i : 1 - i)))) >>> + (littleEndian ? i : 1 - i) * 8 + } +} + +Buffer.prototype.writeUInt16LE = function writeUInt16LE (value, offset, noAssert) { + value = +value + offset = offset | 0 + if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0) + if (Buffer.TYPED_ARRAY_SUPPORT) { + this[offset] = (value & 0xff) + this[offset + 1] = (value >>> 8) + } else { + objectWriteUInt16(this, value, offset, true) + } + return offset + 2 +} + +Buffer.prototype.writeUInt16BE = function writeUInt16BE (value, offset, noAssert) { + value = +value + offset = offset | 0 + if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0) + if (Buffer.TYPED_ARRAY_SUPPORT) { + this[offset] = (value >>> 8) + this[offset + 1] = (value & 0xff) + } else { + objectWriteUInt16(this, value, offset, false) + } + return offset + 2 +} + +function objectWriteUInt32 (buf, value, offset, littleEndian) { + if (value < 0) value = 0xffffffff + value + 1 + for (var i = 0, j = Math.min(buf.length - offset, 4); i < j; i++) { + buf[offset + i] = (value >>> (littleEndian ? i : 3 - i) * 8) & 0xff + } +} + +Buffer.prototype.writeUInt32LE = function writeUInt32LE (value, offset, noAssert) { + value = +value + offset = offset | 0 + if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0) + if (Buffer.TYPED_ARRAY_SUPPORT) { + this[offset + 3] = (value >>> 24) + this[offset + 2] = (value >>> 16) + this[offset + 1] = (value >>> 8) + this[offset] = (value & 0xff) + } else { + objectWriteUInt32(this, value, offset, true) + } + return offset + 4 +} + +Buffer.prototype.writeUInt32BE = function writeUInt32BE (value, offset, noAssert) { + value = +value + offset = offset | 0 + if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0) + if (Buffer.TYPED_ARRAY_SUPPORT) { + this[offset] = (value >>> 24) + this[offset + 1] = (value >>> 16) + this[offset + 2] = (value >>> 8) + this[offset + 3] = (value & 0xff) + } else { + objectWriteUInt32(this, value, offset, false) + } + return offset + 4 +} + +Buffer.prototype.writeIntLE = function writeIntLE (value, offset, byteLength, noAssert) { + value = +value + offset = offset | 0 + if (!noAssert) { + var limit = Math.pow(2, 8 * byteLength - 1) + + checkInt(this, value, offset, byteLength, limit - 1, -limit) + } + + var i = 0 + var mul = 1 + var sub = value < 0 ? 1 : 0 + this[offset] = value & 0xFF + while (++i < byteLength && (mul *= 0x100)) { + this[offset + i] = ((value / mul) >> 0) - sub & 0xFF + } + + return offset + byteLength +} + +Buffer.prototype.writeIntBE = function writeIntBE (value, offset, byteLength, noAssert) { + value = +value + offset = offset | 0 + if (!noAssert) { + var limit = Math.pow(2, 8 * byteLength - 1) + + checkInt(this, value, offset, byteLength, limit - 1, -limit) + } + + var i = byteLength - 1 + var mul = 1 + var sub = value < 0 ? 1 : 0 + this[offset + i] = value & 0xFF + while (--i >= 0 && (mul *= 0x100)) { + this[offset + i] = ((value / mul) >> 0) - sub & 0xFF + } + + return offset + byteLength +} + +Buffer.prototype.writeInt8 = function writeInt8 (value, offset, noAssert) { + value = +value + offset = offset | 0 + if (!noAssert) checkInt(this, value, offset, 1, 0x7f, -0x80) + if (!Buffer.TYPED_ARRAY_SUPPORT) value = Math.floor(value) + if (value < 0) value = 0xff + value + 1 + this[offset] = (value & 0xff) + return offset + 1 +} + +Buffer.prototype.writeInt16LE = function writeInt16LE (value, offset, noAssert) { + value = +value + offset = offset | 0 + if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000) + if (Buffer.TYPED_ARRAY_SUPPORT) { + this[offset] = (value & 0xff) + this[offset + 1] = (value >>> 8) + } else { + objectWriteUInt16(this, value, offset, true) + } + return offset + 2 +} + +Buffer.prototype.writeInt16BE = function writeInt16BE (value, offset, noAssert) { + value = +value + offset = offset | 0 + if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000) + if (Buffer.TYPED_ARRAY_SUPPORT) { + this[offset] = (value >>> 8) + this[offset + 1] = (value & 0xff) + } else { + objectWriteUInt16(this, value, offset, false) + } + return offset + 2 +} + +Buffer.prototype.writeInt32LE = function writeInt32LE (value, offset, noAssert) { + value = +value + offset = offset | 0 + if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000) + if (Buffer.TYPED_ARRAY_SUPPORT) { + this[offset] = (value & 0xff) + this[offset + 1] = (value >>> 8) + this[offset + 2] = (value >>> 16) + this[offset + 3] = (value >>> 24) + } else { + objectWriteUInt32(this, value, offset, true) + } + return offset + 4 +} + +Buffer.prototype.writeInt32BE = function writeInt32BE (value, offset, noAssert) { + value = +value + offset = offset | 0 + if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000) + if (value < 0) value = 0xffffffff + value + 1 + if (Buffer.TYPED_ARRAY_SUPPORT) { + this[offset] = (value >>> 24) + this[offset + 1] = (value >>> 16) + this[offset + 2] = (value >>> 8) + this[offset + 3] = (value & 0xff) + } else { + objectWriteUInt32(this, value, offset, false) + } + return offset + 4 +} + +function checkIEEE754 (buf, value, offset, ext, max, min) { + if (value > max || value < min) throw new RangeError('value is out of bounds') + if (offset + ext > buf.length) throw new RangeError('index out of range') + if (offset < 0) throw new RangeError('index out of range') +} + +function writeFloat (buf, value, offset, littleEndian, noAssert) { + if (!noAssert) { + checkIEEE754(buf, value, offset, 4, 3.4028234663852886e+38, -3.4028234663852886e+38) + } + ieee754.write(buf, value, offset, littleEndian, 23, 4) + return offset + 4 +} + +Buffer.prototype.writeFloatLE = function writeFloatLE (value, offset, noAssert) { + return writeFloat(this, value, offset, true, noAssert) +} + +Buffer.prototype.writeFloatBE = function writeFloatBE (value, offset, noAssert) { + return writeFloat(this, value, offset, false, noAssert) +} + +function writeDouble (buf, value, offset, littleEndian, noAssert) { + if (!noAssert) { + checkIEEE754(buf, value, offset, 8, 1.7976931348623157E+308, -1.7976931348623157E+308) + } + ieee754.write(buf, value, offset, littleEndian, 52, 8) + return offset + 8 +} + +Buffer.prototype.writeDoubleLE = function writeDoubleLE (value, offset, noAssert) { + return writeDouble(this, value, offset, true, noAssert) +} + +Buffer.prototype.writeDoubleBE = function writeDoubleBE (value, offset, noAssert) { + return writeDouble(this, value, offset, false, noAssert) +} + +// copy(targetBuffer, targetStart=0, sourceStart=0, sourceEnd=buffer.length) +Buffer.prototype.copy = function copy (target, targetStart, start, end) { + if (!start) start = 0 + if (!end && end !== 0) end = this.length + if (targetStart >= target.length) targetStart = target.length + if (!targetStart) targetStart = 0 + if (end > 0 && end < start) end = start + + // Copy 0 bytes; we're done + if (end === start) return 0 + if (target.length === 0 || this.length === 0) return 0 + + // Fatal error conditions + if (targetStart < 0) { + throw new RangeError('targetStart out of bounds') + } + if (start < 0 || start >= this.length) throw new RangeError('sourceStart out of bounds') + if (end < 0) throw new RangeError('sourceEnd out of bounds') + + // Are we oob? + if (end > this.length) end = this.length + if (target.length - targetStart < end - start) { + end = target.length - targetStart + start + } + + var len = end - start + var i + + if (this === target && start < targetStart && targetStart < end) { + // descending copy from end + for (i = len - 1; i >= 0; i--) { + target[i + targetStart] = this[i + start] + } + } else if (len < 1000 || !Buffer.TYPED_ARRAY_SUPPORT) { + // ascending copy from start + for (i = 0; i < len; i++) { + target[i + targetStart] = this[i + start] + } + } else { + target._set(this.subarray(start, start + len), targetStart) + } + + return len +} + +// fill(value, start=0, end=buffer.length) +Buffer.prototype.fill = function fill (value, start, end) { + if (!value) value = 0 + if (!start) start = 0 + if (!end) end = this.length + + if (end < start) throw new RangeError('end < start') + + // Fill 0 bytes; we're done + if (end === start) return + if (this.length === 0) return + + if (start < 0 || start >= this.length) throw new RangeError('start out of bounds') + if (end < 0 || end > this.length) throw new RangeError('end out of bounds') + + var i + if (typeof value === 'number') { + for (i = start; i < end; i++) { + this[i] = value + } + } else { + var bytes = utf8ToBytes(value.toString()) + var len = bytes.length + for (i = start; i < end; i++) { + this[i] = bytes[i % len] + } + } + + return this +} + +/** + * Creates a new `ArrayBuffer` with the *copied* memory of the buffer instance. + * Added in Node 0.12. Only available in browsers that support ArrayBuffer. + */ +Buffer.prototype.toArrayBuffer = function toArrayBuffer () { + if (typeof Uint8Array !== 'undefined') { + if (Buffer.TYPED_ARRAY_SUPPORT) { + return (new Buffer(this)).buffer + } else { + var buf = new Uint8Array(this.length) + for (var i = 0, len = buf.length; i < len; i += 1) { + buf[i] = this[i] + } + return buf.buffer + } + } else { + throw new TypeError('Buffer.toArrayBuffer not supported in this browser') + } +} + +// HELPER FUNCTIONS +// ================ + +var BP = Buffer.prototype + +/** + * Augment a Uint8Array *instance* (not the Uint8Array class!) with Buffer methods + */ +Buffer._augment = function _augment (arr) { + arr.constructor = Buffer + arr._isBuffer = true + + // save reference to original Uint8Array set method before overwriting + arr._set = arr.set + + // deprecated + arr.get = BP.get + arr.set = BP.set + + arr.write = BP.write + arr.toString = BP.toString + arr.toLocaleString = BP.toString + arr.toJSON = BP.toJSON + arr.equals = BP.equals + arr.compare = BP.compare + arr.indexOf = BP.indexOf + arr.copy = BP.copy + arr.slice = BP.slice + arr.readUIntLE = BP.readUIntLE + arr.readUIntBE = BP.readUIntBE + arr.readUInt8 = BP.readUInt8 + arr.readUInt16LE = BP.readUInt16LE + arr.readUInt16BE = BP.readUInt16BE + arr.readUInt32LE = BP.readUInt32LE + arr.readUInt32BE = BP.readUInt32BE + arr.readIntLE = BP.readIntLE + arr.readIntBE = BP.readIntBE + arr.readInt8 = BP.readInt8 + arr.readInt16LE = BP.readInt16LE + arr.readInt16BE = BP.readInt16BE + arr.readInt32LE = BP.readInt32LE + arr.readInt32BE = BP.readInt32BE + arr.readFloatLE = BP.readFloatLE + arr.readFloatBE = BP.readFloatBE + arr.readDoubleLE = BP.readDoubleLE + arr.readDoubleBE = BP.readDoubleBE + arr.writeUInt8 = BP.writeUInt8 + arr.writeUIntLE = BP.writeUIntLE + arr.writeUIntBE = BP.writeUIntBE + arr.writeUInt16LE = BP.writeUInt16LE + arr.writeUInt16BE = BP.writeUInt16BE + arr.writeUInt32LE = BP.writeUInt32LE + arr.writeUInt32BE = BP.writeUInt32BE + arr.writeIntLE = BP.writeIntLE + arr.writeIntBE = BP.writeIntBE + arr.writeInt8 = BP.writeInt8 + arr.writeInt16LE = BP.writeInt16LE + arr.writeInt16BE = BP.writeInt16BE + arr.writeInt32LE = BP.writeInt32LE + arr.writeInt32BE = BP.writeInt32BE + arr.writeFloatLE = BP.writeFloatLE + arr.writeFloatBE = BP.writeFloatBE + arr.writeDoubleLE = BP.writeDoubleLE + arr.writeDoubleBE = BP.writeDoubleBE + arr.fill = BP.fill + arr.inspect = BP.inspect + arr.toArrayBuffer = BP.toArrayBuffer + + return arr +} + +var INVALID_BASE64_RE = /[^+\/0-9A-Za-z-_]/g + +function base64clean (str) { + // Node strips out invalid characters like \n and \t from the string, base64-js does not + str = stringtrim(str).replace(INVALID_BASE64_RE, '') + // Node converts strings with length < 2 to '' + if (str.length < 2) return '' + // Node allows for non-padded base64 strings (missing trailing ===), base64-js does not + while (str.length % 4 !== 0) { + str = str + '=' + } + return str +} + +function stringtrim (str) { + if (str.trim) return str.trim() + return str.replace(/^\s+|\s+$/g, '') +} + +function toHex (n) { + if (n < 16) return '0' + n.toString(16) + return n.toString(16) +} + +function utf8ToBytes (string, units) { + units = units || Infinity + var codePoint + var length = string.length + var leadSurrogate = null + var bytes = [] + + for (var i = 0; i < length; i++) { + codePoint = string.charCodeAt(i) + + // is surrogate component + if (codePoint > 0xD7FF && codePoint < 0xE000) { + // last char was a lead + if (!leadSurrogate) { + // no lead yet + if (codePoint > 0xDBFF) { + // unexpected trail + if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD) + continue + } else if (i + 1 === length) { + // unpaired lead + if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD) + continue + } + + // valid lead + leadSurrogate = codePoint + + continue + } + + // 2 leads in a row + if (codePoint < 0xDC00) { + if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD) + leadSurrogate = codePoint + continue + } + + // valid surrogate pair + codePoint = (leadSurrogate - 0xD800 << 10 | codePoint - 0xDC00) + 0x10000 + } else if (leadSurrogate) { + // valid bmp char, but last char was a lead + if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD) + } + + leadSurrogate = null + + // encode utf8 + if (codePoint < 0x80) { + if ((units -= 1) < 0) break + bytes.push(codePoint) + } else if (codePoint < 0x800) { + if ((units -= 2) < 0) break + bytes.push( + codePoint >> 0x6 | 0xC0, + codePoint & 0x3F | 0x80 + ) + } else if (codePoint < 0x10000) { + if ((units -= 3) < 0) break + bytes.push( + codePoint >> 0xC | 0xE0, + codePoint >> 0x6 & 0x3F | 0x80, + codePoint & 0x3F | 0x80 + ) + } else if (codePoint < 0x110000) { + if ((units -= 4) < 0) break + bytes.push( + codePoint >> 0x12 | 0xF0, + codePoint >> 0xC & 0x3F | 0x80, + codePoint >> 0x6 & 0x3F | 0x80, + codePoint & 0x3F | 0x80 + ) + } else { + throw new Error('Invalid code point') + } + } + + return bytes +} + +function asciiToBytes (str) { + var byteArray = [] + for (var i = 0; i < str.length; i++) { + // Node's code seems to be doing this and not & 0x7F.. + byteArray.push(str.charCodeAt(i) & 0xFF) + } + return byteArray +} + +function utf16leToBytes (str, units) { + var c, hi, lo + var byteArray = [] + for (var i = 0; i < str.length; i++) { + if ((units -= 2) < 0) break + + c = str.charCodeAt(i) + hi = c >> 8 + lo = c % 256 + byteArray.push(lo) + byteArray.push(hi) + } + + return byteArray +} + +function base64ToBytes (str) { + return base64.toByteArray(base64clean(str)) +} + +function blitBuffer (src, dst, offset, length) { + for (var i = 0; i < length; i++) { + if ((i + offset >= dst.length) || (i >= src.length)) break + dst[i + offset] = src[i] + } + return i +} + +}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {},require(54).Buffer) +},{"106":106,"21":21,"54":54,"55":55}],55:[function(require,module,exports){ +var toString = {}.toString; + +module.exports = Array.isArray || function (arr) { + return toString.call(arr) == '[object Array]'; +}; + +},{}],56:[function(require,module,exports){ +var Buffer = require(159).Buffer +var Transform = require(169).Transform +var StringDecoder = require(52).StringDecoder +var inherits = require(109) + +function CipherBase (hashMode) { + Transform.call(this) + this.hashMode = typeof hashMode === 'string' + if (this.hashMode) { + this[hashMode] = this._finalOrDigest + } else { + this.final = this._finalOrDigest + } + if (this._final) { + this.__final = this._final + this._final = null + } + this._decoder = null + this._encoding = null +} +inherits(CipherBase, Transform) + +CipherBase.prototype.update = function (data, inputEnc, outputEnc) { + if (typeof data === 'string') { + data = Buffer.from(data, inputEnc) + } + + var outData = this._update(data) + if (this.hashMode) return this + + if (outputEnc) { + outData = this._toString(outData, outputEnc) + } + + return outData +} + +CipherBase.prototype.setAutoPadding = function () {} +CipherBase.prototype.getAuthTag = function () { + throw new Error('trying to get auth tag in unsupported state') +} + +CipherBase.prototype.setAuthTag = function () { + throw new Error('trying to set auth tag in unsupported state') +} + +CipherBase.prototype.setAAD = function () { + throw new Error('trying to set aad in unsupported state') +} + +CipherBase.prototype._transform = function (data, _, next) { + var err + try { + if (this.hashMode) { + this._update(data) + } else { + this.push(this._update(data)) + } + } catch (e) { + err = e + } finally { + next(err) + } +} +CipherBase.prototype._flush = function (done) { + var err + try { + this.push(this.__final()) + } catch (e) { + err = e + } + + done(err) +} +CipherBase.prototype._finalOrDigest = function (outputEnc) { + var outData = this.__final() || Buffer.alloc(0) + if (outputEnc) { + outData = this._toString(outData, outputEnc, true) + } + return outData +} + +CipherBase.prototype._toString = function (value, enc, fin) { + if (!this._decoder) { + this._decoder = new StringDecoder(enc) + this._encoding = enc + } + + if (this._encoding !== enc) throw new Error('can\'t switch encodings') + + var out = this._decoder.write(value) + if (fin) { + out += this._decoder.end() + } + + return out +} + +module.exports = CipherBase + +},{"109":109,"159":159,"169":169,"52":52}],57:[function(require,module,exports){ +(function (Buffer){ +// Copyright Joyent, Inc. and other Node contributors. +// +// Permission is hereby granted, free of charge, to any person obtaining a +// copy of this software and associated documentation files (the +// "Software"), to deal in the Software without restriction, including +// without limitation the rights to use, copy, modify, merge, publish, +// distribute, sublicense, and/or sell copies of the Software, and to permit +// persons to whom the Software is furnished to do so, subject to the +// following conditions: +// +// The above copyright notice and this permission notice shall be included +// in all copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS +// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN +// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, +// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR +// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE +// USE OR OTHER DEALINGS IN THE SOFTWARE. + +// NOTE: These type checking functions intentionally don't use `instanceof` +// because it is fragile and can be easily faked with `Object.create()`. + +function isArray(arg) { + if (Array.isArray) { + return Array.isArray(arg); + } + return objectToString(arg) === '[object Array]'; +} +exports.isArray = isArray; + +function isBoolean(arg) { + return typeof arg === 'boolean'; +} +exports.isBoolean = isBoolean; + +function isNull(arg) { + return arg === null; +} +exports.isNull = isNull; + +function isNullOrUndefined(arg) { + return arg == null; +} +exports.isNullOrUndefined = isNullOrUndefined; + +function isNumber(arg) { + return typeof arg === 'number'; +} +exports.isNumber = isNumber; + +function isString(arg) { + return typeof arg === 'string'; +} +exports.isString = isString; + +function isSymbol(arg) { + return typeof arg === 'symbol'; +} +exports.isSymbol = isSymbol; + +function isUndefined(arg) { + return arg === void 0; +} +exports.isUndefined = isUndefined; + +function isRegExp(re) { + return objectToString(re) === '[object RegExp]'; +} +exports.isRegExp = isRegExp; + +function isObject(arg) { + return typeof arg === 'object' && arg !== null; +} +exports.isObject = isObject; + +function isDate(d) { + return objectToString(d) === '[object Date]'; +} +exports.isDate = isDate; + +function isError(e) { + return (objectToString(e) === '[object Error]' || e instanceof Error); +} +exports.isError = isError; + +function isFunction(arg) { + return typeof arg === 'function'; +} +exports.isFunction = isFunction; + +function isPrimitive(arg) { + return arg === null || + typeof arg === 'boolean' || + typeof arg === 'number' || + typeof arg === 'string' || + typeof arg === 'symbol' || // ES6 symbol + typeof arg === 'undefined'; +} +exports.isPrimitive = isPrimitive; + +exports.isBuffer = Buffer.isBuffer; + +function objectToString(o) { + return Object.prototype.toString.call(o); +} + +}).call(this,{"isBuffer":require(110)}) +},{"110":110}],58:[function(require,module,exports){ +(function (Buffer){ +var elliptic = require(74) +var BN = require(22) + +module.exports = function createECDH (curve) { + return new ECDH(curve) +} + +var aliases = { + secp256k1: { + name: 'secp256k1', + byteLength: 32 + }, + secp224r1: { + name: 'p224', + byteLength: 28 + }, + prime256v1: { + name: 'p256', + byteLength: 32 + }, + prime192v1: { + name: 'p192', + byteLength: 24 + }, + ed25519: { + name: 'ed25519', + byteLength: 32 + }, + secp384r1: { + name: 'p384', + byteLength: 48 + }, + secp521r1: { + name: 'p521', + byteLength: 66 + } +} + +aliases.p224 = aliases.secp224r1 +aliases.p256 = aliases.secp256r1 = aliases.prime256v1 +aliases.p192 = aliases.secp192r1 = aliases.prime192v1 +aliases.p384 = aliases.secp384r1 +aliases.p521 = aliases.secp521r1 + +function ECDH (curve) { + this.curveType = aliases[curve] + if (!this.curveType) { + this.curveType = { + name: curve + } + } + this.curve = new elliptic.ec(this.curveType.name) // eslint-disable-line new-cap + this.keys = void 0 +} + +ECDH.prototype.generateKeys = function (enc, format) { + this.keys = this.curve.genKeyPair() + return this.getPublicKey(enc, format) +} + +ECDH.prototype.computeSecret = function (other, inenc, enc) { + inenc = inenc || 'utf8' + if (!Buffer.isBuffer(other)) { + other = new Buffer(other, inenc) + } + var otherPub = this.curve.keyFromPublic(other).getPublic() + var out = otherPub.mul(this.keys.getPrivate()).getX() + return formatReturnValue(out, enc, this.curveType.byteLength) +} + +ECDH.prototype.getPublicKey = function (enc, format) { + var key = this.keys.getPublic(format === 'compressed', true) + if (format === 'hybrid') { + if (key[key.length - 1] % 2) { + key[0] = 7 + } else { + key[0] = 6 + } + } + return formatReturnValue(key, enc) +} + +ECDH.prototype.getPrivateKey = function (enc) { + return formatReturnValue(this.keys.getPrivate(), enc) +} + +ECDH.prototype.setPublicKey = function (pub, enc) { + enc = enc || 'utf8' + if (!Buffer.isBuffer(pub)) { + pub = new Buffer(pub, enc) + } + this.keys._importPublic(pub) + return this +} + +ECDH.prototype.setPrivateKey = function (priv, enc) { + enc = enc || 'utf8' + if (!Buffer.isBuffer(priv)) { + priv = new Buffer(priv, enc) + } + + var _priv = new BN(priv) + _priv = _priv.toString(16) + this.keys = this.curve.genKeyPair() + this.keys._importPrivate(_priv) + return this +} + +function formatReturnValue (bn, enc, len) { + if (!Array.isArray(bn)) { + bn = bn.toArray() + } + var buf = new Buffer(bn) + if (len && buf.length < len) { + var zeros = new Buffer(len - buf.length) + zeros.fill(0) + buf = Buffer.concat([zeros, buf]) + } + if (!enc) { + return buf + } else { + return buf.toString(enc) + } +} + +}).call(this,require(54).Buffer) +},{"22":22,"54":54,"74":74}],59:[function(require,module,exports){ +'use strict' +var inherits = require(109) +var MD5 = require(117) +var RIPEMD160 = require(158) +var sha = require(162) +var Base = require(56) + +function Hash (hash) { + Base.call(this, 'digest') + + this._hash = hash +} + +inherits(Hash, Base) + +Hash.prototype._update = function (data) { + this._hash.update(data) +} + +Hash.prototype._final = function () { + return this._hash.digest() +} + +module.exports = function createHash (alg) { + alg = alg.toLowerCase() + if (alg === 'md5') return new MD5() + if (alg === 'rmd160' || alg === 'ripemd160') return new RIPEMD160() + + return new Hash(sha(alg)) +} + +},{"109":109,"117":117,"158":158,"162":162,"56":56}],60:[function(require,module,exports){ +var MD5 = require(117) + +module.exports = function (buffer) { + return new MD5().update(buffer).digest() +} + +},{"117":117}],61:[function(require,module,exports){ +'use strict' +var inherits = require(109) +var Legacy = require(62) +var Base = require(56) +var Buffer = require(159).Buffer +var md5 = require(60) +var RIPEMD160 = require(158) + +var sha = require(162) + +var ZEROS = Buffer.alloc(128) + +function Hmac (alg, key) { + Base.call(this, 'digest') + if (typeof key === 'string') { + key = Buffer.from(key) + } + + var blocksize = (alg === 'sha512' || alg === 'sha384') ? 128 : 64 + + this._alg = alg + this._key = key + if (key.length > blocksize) { + var hash = alg === 'rmd160' ? new RIPEMD160() : sha(alg) + key = hash.update(key).digest() + } else if (key.length < blocksize) { + key = Buffer.concat([key, ZEROS], blocksize) + } + + var ipad = this._ipad = Buffer.allocUnsafe(blocksize) + var opad = this._opad = Buffer.allocUnsafe(blocksize) + + for (var i = 0; i < blocksize; i++) { + ipad[i] = key[i] ^ 0x36 + opad[i] = key[i] ^ 0x5C + } + this._hash = alg === 'rmd160' ? new RIPEMD160() : sha(alg) + this._hash.update(ipad) +} + +inherits(Hmac, Base) + +Hmac.prototype._update = function (data) { + this._hash.update(data) +} + +Hmac.prototype._final = function () { + var h = this._hash.digest() + var hash = this._alg === 'rmd160' ? new RIPEMD160() : sha(this._alg) + return hash.update(this._opad).update(h).digest() +} + +module.exports = function createHmac (alg, key) { + alg = alg.toLowerCase() + if (alg === 'rmd160' || alg === 'ripemd160') { + return new Hmac('rmd160', key) + } + if (alg === 'md5') { + return new Legacy(md5, key) + } + return new Hmac(alg, key) +} + +},{"109":109,"158":158,"159":159,"162":162,"56":56,"60":60,"62":62}],62:[function(require,module,exports){ +'use strict' +var inherits = require(109) +var Buffer = require(159).Buffer + +var Base = require(56) + +var ZEROS = Buffer.alloc(128) +var blocksize = 64 + +function Hmac (alg, key) { + Base.call(this, 'digest') + if (typeof key === 'string') { + key = Buffer.from(key) + } + + this._alg = alg + this._key = key + + if (key.length > blocksize) { + key = alg(key) + } else if (key.length < blocksize) { + key = Buffer.concat([key, ZEROS], blocksize) + } + + var ipad = this._ipad = Buffer.allocUnsafe(blocksize) + var opad = this._opad = Buffer.allocUnsafe(blocksize) + + for (var i = 0; i < blocksize; i++) { + ipad[i] = key[i] ^ 0x36 + opad[i] = key[i] ^ 0x5C + } + + this._hash = [ipad] +} + +inherits(Hmac, Base) + +Hmac.prototype._update = function (data) { + this._hash.push(data) +} + +Hmac.prototype._final = function () { + var h = this._alg(Buffer.concat(this._hash)) + return this._alg(Buffer.concat([this._opad, h])) +} +module.exports = Hmac + +},{"109":109,"159":159,"56":56}],63:[function(require,module,exports){ +'use strict' + +exports.randomBytes = exports.rng = exports.pseudoRandomBytes = exports.prng = require(156) +exports.createHash = exports.Hash = require(59) +exports.createHmac = exports.Hmac = require(61) + +var algos = require(46) +var algoKeys = Object.keys(algos) +var hashes = ['sha1', 'sha224', 'sha256', 'sha384', 'sha512', 'md5', 'rmd160'].concat(algoKeys) +exports.getHashes = function () { + return hashes +} + +var p = require(126) +exports.pbkdf2 = p.pbkdf2 +exports.pbkdf2Sync = p.pbkdf2Sync + +var aes = require(42) + +exports.Cipher = aes.Cipher +exports.createCipher = aes.createCipher +exports.Cipheriv = aes.Cipheriv +exports.createCipheriv = aes.createCipheriv +exports.Decipher = aes.Decipher +exports.createDecipher = aes.createDecipher +exports.Decipheriv = aes.Decipheriv +exports.createDecipheriv = aes.createDecipheriv +exports.getCiphers = aes.getCiphers +exports.listCiphers = aes.listCiphers + +var dh = require(70) + +exports.DiffieHellmanGroup = dh.DiffieHellmanGroup +exports.createDiffieHellmanGroup = dh.createDiffieHellmanGroup +exports.getDiffieHellman = dh.getDiffieHellman +exports.createDiffieHellman = dh.createDiffieHellman +exports.DiffieHellman = dh.DiffieHellman + +var sign = require(49) + +exports.createSign = sign.createSign +exports.Sign = sign.Sign +exports.createVerify = sign.createVerify +exports.Verify = sign.Verify + +exports.createECDH = require(58) + +var publicEncrypt = require(150) + +exports.publicEncrypt = publicEncrypt.publicEncrypt +exports.privateEncrypt = publicEncrypt.privateEncrypt +exports.publicDecrypt = publicEncrypt.publicDecrypt +exports.privateDecrypt = publicEncrypt.privateDecrypt + +// the least I can do is make error messages for the rest of the node.js/crypto api. +// ;[ +// 'createCredentials' +// ].forEach(function (name) { +// exports[name] = function () { +// throw new Error([ +// 'sorry, ' + name + ' is not implemented yet', +// 'we accept pull requests', +// 'https://github.com/crypto-browserify/crypto-browserify' +// ].join('\n')) +// } +// }) + +var rf = require(157) + +exports.randomFill = rf.randomFill +exports.randomFillSync = rf.randomFillSync + +exports.createCredentials = function () { + throw new Error([ + 'sorry, createCredentials is not implemented yet', + 'we accept pull requests', + 'https://github.com/crypto-browserify/crypto-browserify' + ].join('\n')) +} + +exports.constants = { + 'DH_CHECK_P_NOT_SAFE_PRIME': 2, + 'DH_CHECK_P_NOT_PRIME': 1, + 'DH_UNABLE_TO_CHECK_GENERATOR': 4, + 'DH_NOT_SUITABLE_GENERATOR': 8, + 'NPN_ENABLED': 1, + 'ALPN_ENABLED': 1, + 'RSA_PKCS1_PADDING': 1, + 'RSA_SSLV23_PADDING': 2, + 'RSA_NO_PADDING': 3, + 'RSA_PKCS1_OAEP_PADDING': 4, + 'RSA_X931_PADDING': 5, + 'RSA_PKCS1_PSS_PADDING': 6, + 'POINT_CONVERSION_COMPRESSED': 2, + 'POINT_CONVERSION_UNCOMPRESSED': 4, + 'POINT_CONVERSION_HYBRID': 6 +} + +},{"126":126,"150":150,"156":156,"157":157,"42":42,"46":46,"49":49,"58":58,"59":59,"61":61,"70":70}],64:[function(require,module,exports){ +'use strict'; + +exports.utils = require(69); +exports.Cipher = require(66); +exports.DES = require(67); +exports.CBC = require(65); +exports.EDE = require(68); + +},{"65":65,"66":66,"67":67,"68":68,"69":69}],65:[function(require,module,exports){ +'use strict'; + +var assert = require(119); +var inherits = require(109); + +var proto = {}; + +function CBCState(iv) { + assert.equal(iv.length, 8, 'Invalid IV length'); + + this.iv = new Array(8); + for (var i = 0; i < this.iv.length; i++) + this.iv[i] = iv[i]; +} + +function instantiate(Base) { + function CBC(options) { + Base.call(this, options); + this._cbcInit(); + } + inherits(CBC, Base); + + var keys = Object.keys(proto); + for (var i = 0; i < keys.length; i++) { + var key = keys[i]; + CBC.prototype[key] = proto[key]; + } + + CBC.create = function create(options) { + return new CBC(options); + }; + + return CBC; +} + +exports.instantiate = instantiate; + +proto._cbcInit = function _cbcInit() { + var state = new CBCState(this.options.iv); + this._cbcState = state; +}; + +proto._update = function _update(inp, inOff, out, outOff) { + var state = this._cbcState; + var superProto = this.constructor.super_.prototype; + + var iv = state.iv; + if (this.type === 'encrypt') { + for (var i = 0; i < this.blockSize; i++) + iv[i] ^= inp[inOff + i]; + + superProto._update.call(this, iv, 0, out, outOff); + + for (var i = 0; i < this.blockSize; i++) + iv[i] = out[outOff + i]; + } else { + superProto._update.call(this, inp, inOff, out, outOff); + + for (var i = 0; i < this.blockSize; i++) + out[outOff + i] ^= iv[i]; + + for (var i = 0; i < this.blockSize; i++) + iv[i] = inp[inOff + i]; + } +}; + +},{"109":109,"119":119}],66:[function(require,module,exports){ +'use strict'; + +var assert = require(119); + +function Cipher(options) { + this.options = options; + + this.type = this.options.type; + this.blockSize = 8; + this._init(); + + this.buffer = new Array(this.blockSize); + this.bufferOff = 0; +} +module.exports = Cipher; + +Cipher.prototype._init = function _init() { + // Might be overrided +}; + +Cipher.prototype.update = function update(data) { + if (data.length === 0) + return []; + + if (this.type === 'decrypt') + return this._updateDecrypt(data); + else + return this._updateEncrypt(data); +}; + +Cipher.prototype._buffer = function _buffer(data, off) { + // Append data to buffer + var min = Math.min(this.buffer.length - this.bufferOff, data.length - off); + for (var i = 0; i < min; i++) + this.buffer[this.bufferOff + i] = data[off + i]; + this.bufferOff += min; + + // Shift next + return min; +}; + +Cipher.prototype._flushBuffer = function _flushBuffer(out, off) { + this._update(this.buffer, 0, out, off); + this.bufferOff = 0; + return this.blockSize; +}; + +Cipher.prototype._updateEncrypt = function _updateEncrypt(data) { + var inputOff = 0; + var outputOff = 0; + + var count = ((this.bufferOff + data.length) / this.blockSize) | 0; + var out = new Array(count * this.blockSize); + + if (this.bufferOff !== 0) { + inputOff += this._buffer(data, inputOff); + + if (this.bufferOff === this.buffer.length) + outputOff += this._flushBuffer(out, outputOff); + } + + // Write blocks + var max = data.length - ((data.length - inputOff) % this.blockSize); + for (; inputOff < max; inputOff += this.blockSize) { + this._update(data, inputOff, out, outputOff); + outputOff += this.blockSize; + } + + // Queue rest + for (; inputOff < data.length; inputOff++, this.bufferOff++) + this.buffer[this.bufferOff] = data[inputOff]; + + return out; +}; + +Cipher.prototype._updateDecrypt = function _updateDecrypt(data) { + var inputOff = 0; + var outputOff = 0; + + var count = Math.ceil((this.bufferOff + data.length) / this.blockSize) - 1; + var out = new Array(count * this.blockSize); + + // TODO(indutny): optimize it, this is far from optimal + for (; count > 0; count--) { + inputOff += this._buffer(data, inputOff); + outputOff += this._flushBuffer(out, outputOff); + } + + // Buffer rest of the input + inputOff += this._buffer(data, inputOff); + + return out; +}; + +Cipher.prototype.final = function final(buffer) { + var first; + if (buffer) + first = this.update(buffer); + + var last; + if (this.type === 'encrypt') + last = this._finalEncrypt(); + else + last = this._finalDecrypt(); + + if (first) + return first.concat(last); + else + return last; +}; + +Cipher.prototype._pad = function _pad(buffer, off) { + if (off === 0) + return false; + + while (off < buffer.length) + buffer[off++] = 0; + + return true; +}; + +Cipher.prototype._finalEncrypt = function _finalEncrypt() { + if (!this._pad(this.buffer, this.bufferOff)) + return []; + + var out = new Array(this.blockSize); + this._update(this.buffer, 0, out, 0); + return out; +}; + +Cipher.prototype._unpad = function _unpad(buffer) { + return buffer; +}; + +Cipher.prototype._finalDecrypt = function _finalDecrypt() { + assert.equal(this.bufferOff, this.blockSize, 'Not enough data to decrypt'); + var out = new Array(this.blockSize); + this._flushBuffer(out, 0); + + return this._unpad(out); +}; + +},{"119":119}],67:[function(require,module,exports){ +'use strict'; + +var assert = require(119); +var inherits = require(109); + +var des = require(64); +var utils = des.utils; +var Cipher = des.Cipher; + +function DESState() { + this.tmp = new Array(2); + this.keys = null; +} + +function DES(options) { + Cipher.call(this, options); + + var state = new DESState(); + this._desState = state; + + this.deriveKeys(state, options.key); +} +inherits(DES, Cipher); +module.exports = DES; + +DES.create = function create(options) { + return new DES(options); +}; + +var shiftTable = [ + 1, 1, 2, 2, 2, 2, 2, 2, + 1, 2, 2, 2, 2, 2, 2, 1 +]; + +DES.prototype.deriveKeys = function deriveKeys(state, key) { + state.keys = new Array(16 * 2); + + assert.equal(key.length, this.blockSize, 'Invalid key length'); + + var kL = utils.readUInt32BE(key, 0); + var kR = utils.readUInt32BE(key, 4); + + utils.pc1(kL, kR, state.tmp, 0); + kL = state.tmp[0]; + kR = state.tmp[1]; + for (var i = 0; i < state.keys.length; i += 2) { + var shift = shiftTable[i >>> 1]; + kL = utils.r28shl(kL, shift); + kR = utils.r28shl(kR, shift); + utils.pc2(kL, kR, state.keys, i); + } +}; + +DES.prototype._update = function _update(inp, inOff, out, outOff) { + var state = this._desState; + + var l = utils.readUInt32BE(inp, inOff); + var r = utils.readUInt32BE(inp, inOff + 4); + + // Initial Permutation + utils.ip(l, r, state.tmp, 0); + l = state.tmp[0]; + r = state.tmp[1]; + + if (this.type === 'encrypt') + this._encrypt(state, l, r, state.tmp, 0); + else + this._decrypt(state, l, r, state.tmp, 0); + + l = state.tmp[0]; + r = state.tmp[1]; + + utils.writeUInt32BE(out, l, outOff); + utils.writeUInt32BE(out, r, outOff + 4); +}; + +DES.prototype._pad = function _pad(buffer, off) { + var value = buffer.length - off; + for (var i = off; i < buffer.length; i++) + buffer[i] = value; + + return true; +}; + +DES.prototype._unpad = function _unpad(buffer) { + var pad = buffer[buffer.length - 1]; + for (var i = buffer.length - pad; i < buffer.length; i++) + assert.equal(buffer[i], pad); + + return buffer.slice(0, buffer.length - pad); +}; + +DES.prototype._encrypt = function _encrypt(state, lStart, rStart, out, off) { + var l = lStart; + var r = rStart; + + // Apply f() x16 times + for (var i = 0; i < state.keys.length; i += 2) { + var keyL = state.keys[i]; + var keyR = state.keys[i + 1]; + + // f(r, k) + utils.expand(r, state.tmp, 0); + + keyL ^= state.tmp[0]; + keyR ^= state.tmp[1]; + var s = utils.substitute(keyL, keyR); + var f = utils.permute(s); + + var t = r; + r = (l ^ f) >>> 0; + l = t; + } + + // Reverse Initial Permutation + utils.rip(r, l, out, off); +}; + +DES.prototype._decrypt = function _decrypt(state, lStart, rStart, out, off) { + var l = rStart; + var r = lStart; + + // Apply f() x16 times + for (var i = state.keys.length - 2; i >= 0; i -= 2) { + var keyL = state.keys[i]; + var keyR = state.keys[i + 1]; + + // f(r, k) + utils.expand(l, state.tmp, 0); + + keyL ^= state.tmp[0]; + keyR ^= state.tmp[1]; + var s = utils.substitute(keyL, keyR); + var f = utils.permute(s); + + var t = l; + l = (r ^ f) >>> 0; + r = t; + } + + // Reverse Initial Permutation + utils.rip(l, r, out, off); +}; + +},{"109":109,"119":119,"64":64}],68:[function(require,module,exports){ +'use strict'; + +var assert = require(119); +var inherits = require(109); + +var des = require(64); +var Cipher = des.Cipher; +var DES = des.DES; + +function EDEState(type, key) { + assert.equal(key.length, 24, 'Invalid key length'); + + var k1 = key.slice(0, 8); + var k2 = key.slice(8, 16); + var k3 = key.slice(16, 24); + + if (type === 'encrypt') { + this.ciphers = [ + DES.create({ type: 'encrypt', key: k1 }), + DES.create({ type: 'decrypt', key: k2 }), + DES.create({ type: 'encrypt', key: k3 }) + ]; + } else { + this.ciphers = [ + DES.create({ type: 'decrypt', key: k3 }), + DES.create({ type: 'encrypt', key: k2 }), + DES.create({ type: 'decrypt', key: k1 }) + ]; + } +} + +function EDE(options) { + Cipher.call(this, options); + + var state = new EDEState(this.type, this.options.key); + this._edeState = state; +} +inherits(EDE, Cipher); + +module.exports = EDE; + +EDE.create = function create(options) { + return new EDE(options); +}; + +EDE.prototype._update = function _update(inp, inOff, out, outOff) { + var state = this._edeState; + + state.ciphers[0]._update(inp, inOff, out, outOff); + state.ciphers[1]._update(out, outOff, out, outOff); + state.ciphers[2]._update(out, outOff, out, outOff); +}; + +EDE.prototype._pad = DES.prototype._pad; +EDE.prototype._unpad = DES.prototype._unpad; + +},{"109":109,"119":119,"64":64}],69:[function(require,module,exports){ +'use strict'; + +exports.readUInt32BE = function readUInt32BE(bytes, off) { + var res = (bytes[0 + off] << 24) | + (bytes[1 + off] << 16) | + (bytes[2 + off] << 8) | + bytes[3 + off]; + return res >>> 0; +}; + +exports.writeUInt32BE = function writeUInt32BE(bytes, value, off) { + bytes[0 + off] = value >>> 24; + bytes[1 + off] = (value >>> 16) & 0xff; + bytes[2 + off] = (value >>> 8) & 0xff; + bytes[3 + off] = value & 0xff; +}; + +exports.ip = function ip(inL, inR, out, off) { + var outL = 0; + var outR = 0; + + for (var i = 6; i >= 0; i -= 2) { + for (var j = 0; j <= 24; j += 8) { + outL <<= 1; + outL |= (inR >>> (j + i)) & 1; + } + for (var j = 0; j <= 24; j += 8) { + outL <<= 1; + outL |= (inL >>> (j + i)) & 1; + } + } + + for (var i = 6; i >= 0; i -= 2) { + for (var j = 1; j <= 25; j += 8) { + outR <<= 1; + outR |= (inR >>> (j + i)) & 1; + } + for (var j = 1; j <= 25; j += 8) { + outR <<= 1; + outR |= (inL >>> (j + i)) & 1; + } + } + + out[off + 0] = outL >>> 0; + out[off + 1] = outR >>> 0; +}; + +exports.rip = function rip(inL, inR, out, off) { + var outL = 0; + var outR = 0; + + for (var i = 0; i < 4; i++) { + for (var j = 24; j >= 0; j -= 8) { + outL <<= 1; + outL |= (inR >>> (j + i)) & 1; + outL <<= 1; + outL |= (inL >>> (j + i)) & 1; + } + } + for (var i = 4; i < 8; i++) { + for (var j = 24; j >= 0; j -= 8) { + outR <<= 1; + outR |= (inR >>> (j + i)) & 1; + outR <<= 1; + outR |= (inL >>> (j + i)) & 1; + } + } + + out[off + 0] = outL >>> 0; + out[off + 1] = outR >>> 0; +}; + +exports.pc1 = function pc1(inL, inR, out, off) { + var outL = 0; + var outR = 0; + + // 7, 15, 23, 31, 39, 47, 55, 63 + // 6, 14, 22, 30, 39, 47, 55, 63 + // 5, 13, 21, 29, 39, 47, 55, 63 + // 4, 12, 20, 28 + for (var i = 7; i >= 5; i--) { + for (var j = 0; j <= 24; j += 8) { + outL <<= 1; + outL |= (inR >> (j + i)) & 1; + } + for (var j = 0; j <= 24; j += 8) { + outL <<= 1; + outL |= (inL >> (j + i)) & 1; + } + } + for (var j = 0; j <= 24; j += 8) { + outL <<= 1; + outL |= (inR >> (j + i)) & 1; + } + + // 1, 9, 17, 25, 33, 41, 49, 57 + // 2, 10, 18, 26, 34, 42, 50, 58 + // 3, 11, 19, 27, 35, 43, 51, 59 + // 36, 44, 52, 60 + for (var i = 1; i <= 3; i++) { + for (var j = 0; j <= 24; j += 8) { + outR <<= 1; + outR |= (inR >> (j + i)) & 1; + } + for (var j = 0; j <= 24; j += 8) { + outR <<= 1; + outR |= (inL >> (j + i)) & 1; + } + } + for (var j = 0; j <= 24; j += 8) { + outR <<= 1; + outR |= (inL >> (j + i)) & 1; + } + + out[off + 0] = outL >>> 0; + out[off + 1] = outR >>> 0; +}; + +exports.r28shl = function r28shl(num, shift) { + return ((num << shift) & 0xfffffff) | (num >>> (28 - shift)); +}; + +var pc2table = [ + // inL => outL + 14, 11, 17, 4, 27, 23, 25, 0, + 13, 22, 7, 18, 5, 9, 16, 24, + 2, 20, 12, 21, 1, 8, 15, 26, + + // inR => outR + 15, 4, 25, 19, 9, 1, 26, 16, + 5, 11, 23, 8, 12, 7, 17, 0, + 22, 3, 10, 14, 6, 20, 27, 24 +]; + +exports.pc2 = function pc2(inL, inR, out, off) { + var outL = 0; + var outR = 0; + + var len = pc2table.length >>> 1; + for (var i = 0; i < len; i++) { + outL <<= 1; + outL |= (inL >>> pc2table[i]) & 0x1; + } + for (var i = len; i < pc2table.length; i++) { + outR <<= 1; + outR |= (inR >>> pc2table[i]) & 0x1; + } + + out[off + 0] = outL >>> 0; + out[off + 1] = outR >>> 0; +}; + +exports.expand = function expand(r, out, off) { + var outL = 0; + var outR = 0; + + outL = ((r & 1) << 5) | (r >>> 27); + for (var i = 23; i >= 15; i -= 4) { + outL <<= 6; + outL |= (r >>> i) & 0x3f; + } + for (var i = 11; i >= 3; i -= 4) { + outR |= (r >>> i) & 0x3f; + outR <<= 6; + } + outR |= ((r & 0x1f) << 1) | (r >>> 31); + + out[off + 0] = outL >>> 0; + out[off + 1] = outR >>> 0; +}; + +var sTable = [ + 14, 0, 4, 15, 13, 7, 1, 4, 2, 14, 15, 2, 11, 13, 8, 1, + 3, 10, 10, 6, 6, 12, 12, 11, 5, 9, 9, 5, 0, 3, 7, 8, + 4, 15, 1, 12, 14, 8, 8, 2, 13, 4, 6, 9, 2, 1, 11, 7, + 15, 5, 12, 11, 9, 3, 7, 14, 3, 10, 10, 0, 5, 6, 0, 13, + + 15, 3, 1, 13, 8, 4, 14, 7, 6, 15, 11, 2, 3, 8, 4, 14, + 9, 12, 7, 0, 2, 1, 13, 10, 12, 6, 0, 9, 5, 11, 10, 5, + 0, 13, 14, 8, 7, 10, 11, 1, 10, 3, 4, 15, 13, 4, 1, 2, + 5, 11, 8, 6, 12, 7, 6, 12, 9, 0, 3, 5, 2, 14, 15, 9, + + 10, 13, 0, 7, 9, 0, 14, 9, 6, 3, 3, 4, 15, 6, 5, 10, + 1, 2, 13, 8, 12, 5, 7, 14, 11, 12, 4, 11, 2, 15, 8, 1, + 13, 1, 6, 10, 4, 13, 9, 0, 8, 6, 15, 9, 3, 8, 0, 7, + 11, 4, 1, 15, 2, 14, 12, 3, 5, 11, 10, 5, 14, 2, 7, 12, + + 7, 13, 13, 8, 14, 11, 3, 5, 0, 6, 6, 15, 9, 0, 10, 3, + 1, 4, 2, 7, 8, 2, 5, 12, 11, 1, 12, 10, 4, 14, 15, 9, + 10, 3, 6, 15, 9, 0, 0, 6, 12, 10, 11, 1, 7, 13, 13, 8, + 15, 9, 1, 4, 3, 5, 14, 11, 5, 12, 2, 7, 8, 2, 4, 14, + + 2, 14, 12, 11, 4, 2, 1, 12, 7, 4, 10, 7, 11, 13, 6, 1, + 8, 5, 5, 0, 3, 15, 15, 10, 13, 3, 0, 9, 14, 8, 9, 6, + 4, 11, 2, 8, 1, 12, 11, 7, 10, 1, 13, 14, 7, 2, 8, 13, + 15, 6, 9, 15, 12, 0, 5, 9, 6, 10, 3, 4, 0, 5, 14, 3, + + 12, 10, 1, 15, 10, 4, 15, 2, 9, 7, 2, 12, 6, 9, 8, 5, + 0, 6, 13, 1, 3, 13, 4, 14, 14, 0, 7, 11, 5, 3, 11, 8, + 9, 4, 14, 3, 15, 2, 5, 12, 2, 9, 8, 5, 12, 15, 3, 10, + 7, 11, 0, 14, 4, 1, 10, 7, 1, 6, 13, 0, 11, 8, 6, 13, + + 4, 13, 11, 0, 2, 11, 14, 7, 15, 4, 0, 9, 8, 1, 13, 10, + 3, 14, 12, 3, 9, 5, 7, 12, 5, 2, 10, 15, 6, 8, 1, 6, + 1, 6, 4, 11, 11, 13, 13, 8, 12, 1, 3, 4, 7, 10, 14, 7, + 10, 9, 15, 5, 6, 0, 8, 15, 0, 14, 5, 2, 9, 3, 2, 12, + + 13, 1, 2, 15, 8, 13, 4, 8, 6, 10, 15, 3, 11, 7, 1, 4, + 10, 12, 9, 5, 3, 6, 14, 11, 5, 0, 0, 14, 12, 9, 7, 2, + 7, 2, 11, 1, 4, 14, 1, 7, 9, 4, 12, 10, 14, 8, 2, 13, + 0, 15, 6, 12, 10, 9, 13, 0, 15, 3, 3, 5, 5, 6, 8, 11 +]; + +exports.substitute = function substitute(inL, inR) { + var out = 0; + for (var i = 0; i < 4; i++) { + var b = (inL >>> (18 - i * 6)) & 0x3f; + var sb = sTable[i * 0x40 + b]; + + out <<= 4; + out |= sb; + } + for (var i = 0; i < 4; i++) { + var b = (inR >>> (18 - i * 6)) & 0x3f; + var sb = sTable[4 * 0x40 + i * 0x40 + b]; + + out <<= 4; + out |= sb; + } + return out >>> 0; +}; + +var permuteTable = [ + 16, 25, 12, 11, 3, 20, 4, 15, 31, 17, 9, 6, 27, 14, 1, 22, + 30, 24, 8, 18, 0, 5, 29, 23, 13, 19, 2, 26, 10, 21, 28, 7 +]; + +exports.permute = function permute(num) { + var out = 0; + for (var i = 0; i < permuteTable.length; i++) { + out <<= 1; + out |= (num >>> permuteTable[i]) & 0x1; + } + return out >>> 0; +}; + +exports.padSplit = function padSplit(num, size, group) { + var str = num.toString(2); + while (str.length < size) + str = '0' + str; + + var out = []; + for (var i = 0; i < size; i += group) + out.push(str.slice(i, i + group)); + return out.join(' '); +}; + +},{}],70:[function(require,module,exports){ +(function (Buffer){ +var generatePrime = require(72) +var primes = require(73) + +var DH = require(71) + +function getDiffieHellman (mod) { + var prime = new Buffer(primes[mod].prime, 'hex') + var gen = new Buffer(primes[mod].gen, 'hex') + + return new DH(prime, gen) +} + +var ENCODINGS = { + 'binary': true, 'hex': true, 'base64': true +} + +function createDiffieHellman (prime, enc, generator, genc) { + if (Buffer.isBuffer(enc) || ENCODINGS[enc] === undefined) { + return createDiffieHellman(prime, 'binary', enc, generator) + } + + enc = enc || 'binary' + genc = genc || 'binary' + generator = generator || new Buffer([2]) + + if (!Buffer.isBuffer(generator)) { + generator = new Buffer(generator, genc) + } + + if (typeof prime === 'number') { + return new DH(generatePrime(prime, generator), generator, true) + } + + if (!Buffer.isBuffer(prime)) { + prime = new Buffer(prime, enc) + } + + return new DH(prime, generator, true) +} + +exports.DiffieHellmanGroup = exports.createDiffieHellmanGroup = exports.getDiffieHellman = getDiffieHellman +exports.createDiffieHellman = exports.DiffieHellman = createDiffieHellman + +}).call(this,require(54).Buffer) +},{"54":54,"71":71,"72":72,"73":73}],71:[function(require,module,exports){ +(function (Buffer){ +var BN = require(22); +var MillerRabin = require(118); +var millerRabin = new MillerRabin(); +var TWENTYFOUR = new BN(24); +var ELEVEN = new BN(11); +var TEN = new BN(10); +var THREE = new BN(3); +var SEVEN = new BN(7); +var primes = require(72); +var randomBytes = require(156); +module.exports = DH; + +function setPublicKey(pub, enc) { + enc = enc || 'utf8'; + if (!Buffer.isBuffer(pub)) { + pub = new Buffer(pub, enc); + } + this._pub = new BN(pub); + return this; +} + +function setPrivateKey(priv, enc) { + enc = enc || 'utf8'; + if (!Buffer.isBuffer(priv)) { + priv = new Buffer(priv, enc); + } + this._priv = new BN(priv); + return this; +} + +var primeCache = {}; +function checkPrime(prime, generator) { + var gen = generator.toString('hex'); + var hex = [gen, prime.toString(16)].join('_'); + if (hex in primeCache) { + return primeCache[hex]; + } + var error = 0; + + if (prime.isEven() || + !primes.simpleSieve || + !primes.fermatTest(prime) || + !millerRabin.test(prime)) { + //not a prime so +1 + error += 1; + + if (gen === '02' || gen === '05') { + // we'd be able to check the generator + // it would fail so +8 + error += 8; + } else { + //we wouldn't be able to test the generator + // so +4 + error += 4; + } + primeCache[hex] = error; + return error; + } + if (!millerRabin.test(prime.shrn(1))) { + //not a safe prime + error += 2; + } + var rem; + switch (gen) { + case '02': + if (prime.mod(TWENTYFOUR).cmp(ELEVEN)) { + // unsuidable generator + error += 8; + } + break; + case '05': + rem = prime.mod(TEN); + if (rem.cmp(THREE) && rem.cmp(SEVEN)) { + // prime mod 10 needs to equal 3 or 7 + error += 8; + } + break; + default: + error += 4; + } + primeCache[hex] = error; + return error; +} + +function DH(prime, generator, malleable) { + this.setGenerator(generator); + this.__prime = new BN(prime); + this._prime = BN.mont(this.__prime); + this._primeLen = prime.length; + this._pub = undefined; + this._priv = undefined; + this._primeCode = undefined; + if (malleable) { + this.setPublicKey = setPublicKey; + this.setPrivateKey = setPrivateKey; + } else { + this._primeCode = 8; + } +} +Object.defineProperty(DH.prototype, 'verifyError', { + enumerable: true, + get: function () { + if (typeof this._primeCode !== 'number') { + this._primeCode = checkPrime(this.__prime, this.__gen); + } + return this._primeCode; + } +}); +DH.prototype.generateKeys = function () { + if (!this._priv) { + this._priv = new BN(randomBytes(this._primeLen)); + } + this._pub = this._gen.toRed(this._prime).redPow(this._priv).fromRed(); + return this.getPublicKey(); +}; + +DH.prototype.computeSecret = function (other) { + other = new BN(other); + other = other.toRed(this._prime); + var secret = other.redPow(this._priv).fromRed(); + var out = new Buffer(secret.toArray()); + var prime = this.getPrime(); + if (out.length < prime.length) { + var front = new Buffer(prime.length - out.length); + front.fill(0); + out = Buffer.concat([front, out]); + } + return out; +}; + +DH.prototype.getPublicKey = function getPublicKey(enc) { + return formatReturnValue(this._pub, enc); +}; + +DH.prototype.getPrivateKey = function getPrivateKey(enc) { + return formatReturnValue(this._priv, enc); +}; + +DH.prototype.getPrime = function (enc) { + return formatReturnValue(this.__prime, enc); +}; + +DH.prototype.getGenerator = function (enc) { + return formatReturnValue(this._gen, enc); +}; + +DH.prototype.setGenerator = function (gen, enc) { + enc = enc || 'utf8'; + if (!Buffer.isBuffer(gen)) { + gen = new Buffer(gen, enc); + } + this.__gen = gen; + this._gen = new BN(gen); + return this; +}; + +function formatReturnValue(bn, enc) { + var buf = new Buffer(bn.toArray()); + if (!enc) { + return buf; + } else { + return buf.toString(enc); + } +} + +}).call(this,require(54).Buffer) +},{"118":118,"156":156,"22":22,"54":54,"72":72}],72:[function(require,module,exports){ +var randomBytes = require(156); +module.exports = findPrime; +findPrime.simpleSieve = simpleSieve; +findPrime.fermatTest = fermatTest; +var BN = require(22); +var TWENTYFOUR = new BN(24); +var MillerRabin = require(118); +var millerRabin = new MillerRabin(); +var ONE = new BN(1); +var TWO = new BN(2); +var FIVE = new BN(5); +var SIXTEEN = new BN(16); +var EIGHT = new BN(8); +var TEN = new BN(10); +var THREE = new BN(3); +var SEVEN = new BN(7); +var ELEVEN = new BN(11); +var FOUR = new BN(4); +var TWELVE = new BN(12); +var primes = null; + +function _getPrimes() { + if (primes !== null) + return primes; + + var limit = 0x100000; + var res = []; + res[0] = 2; + for (var i = 1, k = 3; k < limit; k += 2) { + var sqrt = Math.ceil(Math.sqrt(k)); + for (var j = 0; j < i && res[j] <= sqrt; j++) + if (k % res[j] === 0) + break; + + if (i !== j && res[j] <= sqrt) + continue; + + res[i++] = k; + } + primes = res; + return res; +} + +function simpleSieve(p) { + var primes = _getPrimes(); + + for (var i = 0; i < primes.length; i++) + if (p.modn(primes[i]) === 0) { + if (p.cmpn(primes[i]) === 0) { + return true; + } else { + return false; + } + } + + return true; +} + +function fermatTest(p) { + var red = BN.mont(p); + return TWO.toRed(red).redPow(p.subn(1)).fromRed().cmpn(1) === 0; +} + +function findPrime(bits, gen) { + if (bits < 16) { + // this is what openssl does + if (gen === 2 || gen === 5) { + return new BN([0x8c, 0x7b]); + } else { + return new BN([0x8c, 0x27]); + } + } + gen = new BN(gen); + + var num, n2; + + while (true) { + num = new BN(randomBytes(Math.ceil(bits / 8))); + while (num.bitLength() > bits) { + num.ishrn(1); + } + if (num.isEven()) { + num.iadd(ONE); + } + if (!num.testn(1)) { + num.iadd(TWO); + } + if (!gen.cmp(TWO)) { + while (num.mod(TWENTYFOUR).cmp(ELEVEN)) { + num.iadd(FOUR); + } + } else if (!gen.cmp(FIVE)) { + while (num.mod(TEN).cmp(THREE)) { + num.iadd(FOUR); + } + } + n2 = num.shrn(1); + if (simpleSieve(n2) && simpleSieve(num) && + fermatTest(n2) && fermatTest(num) && + millerRabin.test(n2) && millerRabin.test(num)) { + return num; + } + } + +} + +},{"118":118,"156":156,"22":22}],73:[function(require,module,exports){ +module.exports={ + "modp1": { + "gen": "02", + "prime": "ffffffffffffffffc90fdaa22168c234c4c6628b80dc1cd129024e088a67cc74020bbea63b139b22514a08798e3404ddef9519b3cd3a431b302b0a6df25f14374fe1356d6d51c245e485b576625e7ec6f44c42e9a63a3620ffffffffffffffff" + }, + "modp2": { + "gen": "02", + "prime": "ffffffffffffffffc90fdaa22168c234c4c6628b80dc1cd129024e088a67cc74020bbea63b139b22514a08798e3404ddef9519b3cd3a431b302b0a6df25f14374fe1356d6d51c245e485b576625e7ec6f44c42e9a637ed6b0bff5cb6f406b7edee386bfb5a899fa5ae9f24117c4b1fe649286651ece65381ffffffffffffffff" + }, + "modp5": { + "gen": "02", + "prime": "ffffffffffffffffc90fdaa22168c234c4c6628b80dc1cd129024e088a67cc74020bbea63b139b22514a08798e3404ddef9519b3cd3a431b302b0a6df25f14374fe1356d6d51c245e485b576625e7ec6f44c42e9a637ed6b0bff5cb6f406b7edee386bfb5a899fa5ae9f24117c4b1fe649286651ece45b3dc2007cb8a163bf0598da48361c55d39a69163fa8fd24cf5f83655d23dca3ad961c62f356208552bb9ed529077096966d670c354e4abc9804f1746c08ca237327ffffffffffffffff" + }, + "modp14": { + "gen": "02", + "prime": "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" + }, + "modp15": { + "gen": "02", + "prime": "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" + }, + "modp16": { + "gen": "02", + "prime": "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" + }, + "modp17": { + "gen": "02", + "prime": "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" + }, + "modp18": { + "gen": "02", + "prime": "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" + } +} +},{}],74:[function(require,module,exports){ +'use strict'; + +var elliptic = exports; + +elliptic.version = require(89).version; +elliptic.utils = require(88); +elliptic.rand = require(23); +elliptic.curve = require(77); +elliptic.curves = require(80); + +// Protocols +elliptic.ec = require(81); +elliptic.eddsa = require(84); + +},{"23":23,"77":77,"80":80,"81":81,"84":84,"88":88,"89":89}],75:[function(require,module,exports){ +'use strict'; + +var BN = require(22); +var utils = require(88); +var getNAF = utils.getNAF; +var getJSF = utils.getJSF; +var assert = utils.assert; + +function BaseCurve(type, conf) { + this.type = type; + this.p = new BN(conf.p, 16); + + // Use Montgomery, when there is no fast reduction for the prime + this.red = conf.prime ? BN.red(conf.prime) : BN.mont(this.p); + + // Useful for many curves + this.zero = new BN(0).toRed(this.red); + this.one = new BN(1).toRed(this.red); + this.two = new BN(2).toRed(this.red); + + // Curve configuration, optional + this.n = conf.n && new BN(conf.n, 16); + this.g = conf.g && this.pointFromJSON(conf.g, conf.gRed); + + // Temporary arrays + this._wnafT1 = new Array(4); + this._wnafT2 = new Array(4); + this._wnafT3 = new Array(4); + this._wnafT4 = new Array(4); + + // Generalized Greg Maxwell's trick + var adjustCount = this.n && this.p.div(this.n); + if (!adjustCount || adjustCount.cmpn(100) > 0) { + this.redN = null; + } else { + this._maxwellTrick = true; + this.redN = this.n.toRed(this.red); + } +} +module.exports = BaseCurve; + +BaseCurve.prototype.point = function point() { + throw new Error('Not implemented'); +}; + +BaseCurve.prototype.validate = function validate() { + throw new Error('Not implemented'); +}; + +BaseCurve.prototype._fixedNafMul = function _fixedNafMul(p, k) { + assert(p.precomputed); + var doubles = p._getDoubles(); + + var naf = getNAF(k, 1); + var I = (1 << (doubles.step + 1)) - (doubles.step % 2 === 0 ? 2 : 1); + I /= 3; + + // Translate into more windowed form + var repr = []; + for (var j = 0; j < naf.length; j += doubles.step) { + var nafW = 0; + for (var k = j + doubles.step - 1; k >= j; k--) + nafW = (nafW << 1) + naf[k]; + repr.push(nafW); + } + + var a = this.jpoint(null, null, null); + var b = this.jpoint(null, null, null); + for (var i = I; i > 0; i--) { + for (var j = 0; j < repr.length; j++) { + var nafW = repr[j]; + if (nafW === i) + b = b.mixedAdd(doubles.points[j]); + else if (nafW === -i) + b = b.mixedAdd(doubles.points[j].neg()); + } + a = a.add(b); + } + return a.toP(); +}; + +BaseCurve.prototype._wnafMul = function _wnafMul(p, k) { + var w = 4; + + // Precompute window + var nafPoints = p._getNAFPoints(w); + w = nafPoints.wnd; + var wnd = nafPoints.points; + + // Get NAF form + var naf = getNAF(k, w); + + // Add `this`*(N+1) for every w-NAF index + var acc = this.jpoint(null, null, null); + for (var i = naf.length - 1; i >= 0; i--) { + // Count zeroes + for (var k = 0; i >= 0 && naf[i] === 0; i--) + k++; + if (i >= 0) + k++; + acc = acc.dblp(k); + + if (i < 0) + break; + var z = naf[i]; + assert(z !== 0); + if (p.type === 'affine') { + // J +- P + if (z > 0) + acc = acc.mixedAdd(wnd[(z - 1) >> 1]); + else + acc = acc.mixedAdd(wnd[(-z - 1) >> 1].neg()); + } else { + // J +- J + if (z > 0) + acc = acc.add(wnd[(z - 1) >> 1]); + else + acc = acc.add(wnd[(-z - 1) >> 1].neg()); + } + } + return p.type === 'affine' ? acc.toP() : acc; +}; + +BaseCurve.prototype._wnafMulAdd = function _wnafMulAdd(defW, + points, + coeffs, + len, + jacobianResult) { + var wndWidth = this._wnafT1; + var wnd = this._wnafT2; + var naf = this._wnafT3; + + // Fill all arrays + var max = 0; + for (var i = 0; i < len; i++) { + var p = points[i]; + var nafPoints = p._getNAFPoints(defW); + wndWidth[i] = nafPoints.wnd; + wnd[i] = nafPoints.points; + } + + // Comb small window NAFs + for (var i = len - 1; i >= 1; i -= 2) { + var a = i - 1; + var b = i; + if (wndWidth[a] !== 1 || wndWidth[b] !== 1) { + naf[a] = getNAF(coeffs[a], wndWidth[a]); + naf[b] = getNAF(coeffs[b], wndWidth[b]); + max = Math.max(naf[a].length, max); + max = Math.max(naf[b].length, max); + continue; + } + + var comb = [ + points[a], /* 1 */ + null, /* 3 */ + null, /* 5 */ + points[b] /* 7 */ + ]; + + // Try to avoid Projective points, if possible + if (points[a].y.cmp(points[b].y) === 0) { + comb[1] = points[a].add(points[b]); + comb[2] = points[a].toJ().mixedAdd(points[b].neg()); + } else if (points[a].y.cmp(points[b].y.redNeg()) === 0) { + comb[1] = points[a].toJ().mixedAdd(points[b]); + comb[2] = points[a].add(points[b].neg()); + } else { + comb[1] = points[a].toJ().mixedAdd(points[b]); + comb[2] = points[a].toJ().mixedAdd(points[b].neg()); + } + + var index = [ + -3, /* -1 -1 */ + -1, /* -1 0 */ + -5, /* -1 1 */ + -7, /* 0 -1 */ + 0, /* 0 0 */ + 7, /* 0 1 */ + 5, /* 1 -1 */ + 1, /* 1 0 */ + 3 /* 1 1 */ + ]; + + var jsf = getJSF(coeffs[a], coeffs[b]); + max = Math.max(jsf[0].length, max); + naf[a] = new Array(max); + naf[b] = new Array(max); + for (var j = 0; j < max; j++) { + var ja = jsf[0][j] | 0; + var jb = jsf[1][j] | 0; + + naf[a][j] = index[(ja + 1) * 3 + (jb + 1)]; + naf[b][j] = 0; + wnd[a] = comb; + } + } + + var acc = this.jpoint(null, null, null); + var tmp = this._wnafT4; + for (var i = max; i >= 0; i--) { + var k = 0; + + while (i >= 0) { + var zero = true; + for (var j = 0; j < len; j++) { + tmp[j] = naf[j][i] | 0; + if (tmp[j] !== 0) + zero = false; + } + if (!zero) + break; + k++; + i--; + } + if (i >= 0) + k++; + acc = acc.dblp(k); + if (i < 0) + break; + + for (var j = 0; j < len; j++) { + var z = tmp[j]; + var p; + if (z === 0) + continue; + else if (z > 0) + p = wnd[j][(z - 1) >> 1]; + else if (z < 0) + p = wnd[j][(-z - 1) >> 1].neg(); + + if (p.type === 'affine') + acc = acc.mixedAdd(p); + else + acc = acc.add(p); + } + } + // Zeroify references + for (var i = 0; i < len; i++) + wnd[i] = null; + + if (jacobianResult) + return acc; + else + return acc.toP(); +}; + +function BasePoint(curve, type) { + this.curve = curve; + this.type = type; + this.precomputed = null; +} +BaseCurve.BasePoint = BasePoint; + +BasePoint.prototype.eq = function eq(/*other*/) { + throw new Error('Not implemented'); +}; + +BasePoint.prototype.validate = function validate() { + return this.curve.validate(this); +}; + +BaseCurve.prototype.decodePoint = function decodePoint(bytes, enc) { + bytes = utils.toArray(bytes, enc); + + var len = this.p.byteLength(); + + // uncompressed, hybrid-odd, hybrid-even + if ((bytes[0] === 0x04 || bytes[0] === 0x06 || bytes[0] === 0x07) && + bytes.length - 1 === 2 * len) { + if (bytes[0] === 0x06) + assert(bytes[bytes.length - 1] % 2 === 0); + else if (bytes[0] === 0x07) + assert(bytes[bytes.length - 1] % 2 === 1); + + var res = this.point(bytes.slice(1, 1 + len), + bytes.slice(1 + len, 1 + 2 * len)); + + return res; + } else if ((bytes[0] === 0x02 || bytes[0] === 0x03) && + bytes.length - 1 === len) { + return this.pointFromX(bytes.slice(1, 1 + len), bytes[0] === 0x03); + } + throw new Error('Unknown point format'); +}; + +BasePoint.prototype.encodeCompressed = function encodeCompressed(enc) { + return this.encode(enc, true); +}; + +BasePoint.prototype._encode = function _encode(compact) { + var len = this.curve.p.byteLength(); + var x = this.getX().toArray('be', len); + + if (compact) + return [ this.getY().isEven() ? 0x02 : 0x03 ].concat(x); + + return [ 0x04 ].concat(x, this.getY().toArray('be', len)) ; +}; + +BasePoint.prototype.encode = function encode(enc, compact) { + return utils.encode(this._encode(compact), enc); +}; + +BasePoint.prototype.precompute = function precompute(power) { + if (this.precomputed) + return this; + + var precomputed = { + doubles: null, + naf: null, + beta: null + }; + precomputed.naf = this._getNAFPoints(8); + precomputed.doubles = this._getDoubles(4, power); + precomputed.beta = this._getBeta(); + this.precomputed = precomputed; + + return this; +}; + +BasePoint.prototype._hasDoubles = function _hasDoubles(k) { + if (!this.precomputed) + return false; + + var doubles = this.precomputed.doubles; + if (!doubles) + return false; + + return doubles.points.length >= Math.ceil((k.bitLength() + 1) / doubles.step); +}; + +BasePoint.prototype._getDoubles = function _getDoubles(step, power) { + if (this.precomputed && this.precomputed.doubles) + return this.precomputed.doubles; + + var doubles = [ this ]; + var acc = this; + for (var i = 0; i < power; i += step) { + for (var j = 0; j < step; j++) + acc = acc.dbl(); + doubles.push(acc); + } + return { + step: step, + points: doubles + }; +}; + +BasePoint.prototype._getNAFPoints = function _getNAFPoints(wnd) { + if (this.precomputed && this.precomputed.naf) + return this.precomputed.naf; + + var res = [ this ]; + var max = (1 << wnd) - 1; + var dbl = max === 1 ? null : this.dbl(); + for (var i = 1; i < max; i++) + res[i] = res[i - 1].add(dbl); + return { + wnd: wnd, + points: res + }; +}; + +BasePoint.prototype._getBeta = function _getBeta() { + return null; +}; + +BasePoint.prototype.dblp = function dblp(k) { + var r = this; + for (var i = 0; i < k; i++) + r = r.dbl(); + return r; +}; + +},{"22":22,"88":88}],76:[function(require,module,exports){ +'use strict'; + +var utils = require(88); +var BN = require(22); +var inherits = require(109); +var Base = require(75); + +var assert = utils.assert; + +function EdwardsCurve(conf) { + // NOTE: Important as we are creating point in Base.call() + this.twisted = (conf.a | 0) !== 1; + this.mOneA = this.twisted && (conf.a | 0) === -1; + this.extended = this.mOneA; + + Base.call(this, 'edwards', conf); + + this.a = new BN(conf.a, 16).umod(this.red.m); + this.a = this.a.toRed(this.red); + this.c = new BN(conf.c, 16).toRed(this.red); + this.c2 = this.c.redSqr(); + this.d = new BN(conf.d, 16).toRed(this.red); + this.dd = this.d.redAdd(this.d); + + assert(!this.twisted || this.c.fromRed().cmpn(1) === 0); + this.oneC = (conf.c | 0) === 1; +} +inherits(EdwardsCurve, Base); +module.exports = EdwardsCurve; + +EdwardsCurve.prototype._mulA = function _mulA(num) { + if (this.mOneA) + return num.redNeg(); + else + return this.a.redMul(num); +}; + +EdwardsCurve.prototype._mulC = function _mulC(num) { + if (this.oneC) + return num; + else + return this.c.redMul(num); +}; + +// Just for compatibility with Short curve +EdwardsCurve.prototype.jpoint = function jpoint(x, y, z, t) { + return this.point(x, y, z, t); +}; + +EdwardsCurve.prototype.pointFromX = function pointFromX(x, odd) { + x = new BN(x, 16); + if (!x.red) + x = x.toRed(this.red); + + var x2 = x.redSqr(); + var rhs = this.c2.redSub(this.a.redMul(x2)); + var lhs = this.one.redSub(this.c2.redMul(this.d).redMul(x2)); + + var y2 = rhs.redMul(lhs.redInvm()); + var y = y2.redSqrt(); + if (y.redSqr().redSub(y2).cmp(this.zero) !== 0) + throw new Error('invalid point'); + + var isOdd = y.fromRed().isOdd(); + if (odd && !isOdd || !odd && isOdd) + y = y.redNeg(); + + return this.point(x, y); +}; + +EdwardsCurve.prototype.pointFromY = function pointFromY(y, odd) { + y = new BN(y, 16); + if (!y.red) + y = y.toRed(this.red); + + // x^2 = (y^2 - c^2) / (c^2 d y^2 - a) + var y2 = y.redSqr(); + var lhs = y2.redSub(this.c2); + var rhs = y2.redMul(this.d).redMul(this.c2).redSub(this.a); + var x2 = lhs.redMul(rhs.redInvm()); + + if (x2.cmp(this.zero) === 0) { + if (odd) + throw new Error('invalid point'); + else + return this.point(this.zero, y); + } + + var x = x2.redSqrt(); + if (x.redSqr().redSub(x2).cmp(this.zero) !== 0) + throw new Error('invalid point'); + + if (x.fromRed().isOdd() !== odd) + x = x.redNeg(); + + return this.point(x, y); +}; + +EdwardsCurve.prototype.validate = function validate(point) { + if (point.isInfinity()) + return true; + + // Curve: A * X^2 + Y^2 = C^2 * (1 + D * X^2 * Y^2) + point.normalize(); + + var x2 = point.x.redSqr(); + var y2 = point.y.redSqr(); + var lhs = x2.redMul(this.a).redAdd(y2); + var rhs = this.c2.redMul(this.one.redAdd(this.d.redMul(x2).redMul(y2))); + + return lhs.cmp(rhs) === 0; +}; + +function Point(curve, x, y, z, t) { + Base.BasePoint.call(this, curve, 'projective'); + if (x === null && y === null && z === null) { + this.x = this.curve.zero; + this.y = this.curve.one; + this.z = this.curve.one; + this.t = this.curve.zero; + this.zOne = true; + } else { + this.x = new BN(x, 16); + this.y = new BN(y, 16); + this.z = z ? new BN(z, 16) : this.curve.one; + this.t = t && new BN(t, 16); + if (!this.x.red) + this.x = this.x.toRed(this.curve.red); + if (!this.y.red) + this.y = this.y.toRed(this.curve.red); + if (!this.z.red) + this.z = this.z.toRed(this.curve.red); + if (this.t && !this.t.red) + this.t = this.t.toRed(this.curve.red); + this.zOne = this.z === this.curve.one; + + // Use extended coordinates + if (this.curve.extended && !this.t) { + this.t = this.x.redMul(this.y); + if (!this.zOne) + this.t = this.t.redMul(this.z.redInvm()); + } + } +} +inherits(Point, Base.BasePoint); + +EdwardsCurve.prototype.pointFromJSON = function pointFromJSON(obj) { + return Point.fromJSON(this, obj); +}; + +EdwardsCurve.prototype.point = function point(x, y, z, t) { + return new Point(this, x, y, z, t); +}; + +Point.fromJSON = function fromJSON(curve, obj) { + return new Point(curve, obj[0], obj[1], obj[2]); +}; + +Point.prototype.inspect = function inspect() { + if (this.isInfinity()) + return ''; + return ''; +}; + +Point.prototype.isInfinity = function isInfinity() { + // XXX This code assumes that zero is always zero in red + return this.x.cmpn(0) === 0 && + (this.y.cmp(this.z) === 0 || + (this.zOne && this.y.cmp(this.curve.c) === 0)); +}; + +Point.prototype._extDbl = function _extDbl() { + // hyperelliptic.org/EFD/g1p/auto-twisted-extended-1.html + // #doubling-dbl-2008-hwcd + // 4M + 4S + + // A = X1^2 + var a = this.x.redSqr(); + // B = Y1^2 + var b = this.y.redSqr(); + // C = 2 * Z1^2 + var c = this.z.redSqr(); + c = c.redIAdd(c); + // D = a * A + var d = this.curve._mulA(a); + // E = (X1 + Y1)^2 - A - B + var e = this.x.redAdd(this.y).redSqr().redISub(a).redISub(b); + // G = D + B + var g = d.redAdd(b); + // F = G - C + var f = g.redSub(c); + // H = D - B + var h = d.redSub(b); + // X3 = E * F + var nx = e.redMul(f); + // Y3 = G * H + var ny = g.redMul(h); + // T3 = E * H + var nt = e.redMul(h); + // Z3 = F * G + var nz = f.redMul(g); + return this.curve.point(nx, ny, nz, nt); +}; + +Point.prototype._projDbl = function _projDbl() { + // hyperelliptic.org/EFD/g1p/auto-twisted-projective.html + // #doubling-dbl-2008-bbjlp + // #doubling-dbl-2007-bl + // and others + // Generally 3M + 4S or 2M + 4S + + // B = (X1 + Y1)^2 + var b = this.x.redAdd(this.y).redSqr(); + // C = X1^2 + var c = this.x.redSqr(); + // D = Y1^2 + var d = this.y.redSqr(); + + var nx; + var ny; + var nz; + if (this.curve.twisted) { + // E = a * C + var e = this.curve._mulA(c); + // F = E + D + var f = e.redAdd(d); + if (this.zOne) { + // X3 = (B - C - D) * (F - 2) + nx = b.redSub(c).redSub(d).redMul(f.redSub(this.curve.two)); + // Y3 = F * (E - D) + ny = f.redMul(e.redSub(d)); + // Z3 = F^2 - 2 * F + nz = f.redSqr().redSub(f).redSub(f); + } else { + // H = Z1^2 + var h = this.z.redSqr(); + // J = F - 2 * H + var j = f.redSub(h).redISub(h); + // X3 = (B-C-D)*J + nx = b.redSub(c).redISub(d).redMul(j); + // Y3 = F * (E - D) + ny = f.redMul(e.redSub(d)); + // Z3 = F * J + nz = f.redMul(j); + } + } else { + // E = C + D + var e = c.redAdd(d); + // H = (c * Z1)^2 + var h = this.curve._mulC(this.z).redSqr(); + // J = E - 2 * H + var j = e.redSub(h).redSub(h); + // X3 = c * (B - E) * J + nx = this.curve._mulC(b.redISub(e)).redMul(j); + // Y3 = c * E * (C - D) + ny = this.curve._mulC(e).redMul(c.redISub(d)); + // Z3 = E * J + nz = e.redMul(j); + } + return this.curve.point(nx, ny, nz); +}; + +Point.prototype.dbl = function dbl() { + if (this.isInfinity()) + return this; + + // Double in extended coordinates + if (this.curve.extended) + return this._extDbl(); + else + return this._projDbl(); +}; + +Point.prototype._extAdd = function _extAdd(p) { + // hyperelliptic.org/EFD/g1p/auto-twisted-extended-1.html + // #addition-add-2008-hwcd-3 + // 8M + + // A = (Y1 - X1) * (Y2 - X2) + var a = this.y.redSub(this.x).redMul(p.y.redSub(p.x)); + // B = (Y1 + X1) * (Y2 + X2) + var b = this.y.redAdd(this.x).redMul(p.y.redAdd(p.x)); + // C = T1 * k * T2 + var c = this.t.redMul(this.curve.dd).redMul(p.t); + // D = Z1 * 2 * Z2 + var d = this.z.redMul(p.z.redAdd(p.z)); + // E = B - A + var e = b.redSub(a); + // F = D - C + var f = d.redSub(c); + // G = D + C + var g = d.redAdd(c); + // H = B + A + var h = b.redAdd(a); + // X3 = E * F + var nx = e.redMul(f); + // Y3 = G * H + var ny = g.redMul(h); + // T3 = E * H + var nt = e.redMul(h); + // Z3 = F * G + var nz = f.redMul(g); + return this.curve.point(nx, ny, nz, nt); +}; + +Point.prototype._projAdd = function _projAdd(p) { + // hyperelliptic.org/EFD/g1p/auto-twisted-projective.html + // #addition-add-2008-bbjlp + // #addition-add-2007-bl + // 10M + 1S + + // A = Z1 * Z2 + var a = this.z.redMul(p.z); + // B = A^2 + var b = a.redSqr(); + // C = X1 * X2 + var c = this.x.redMul(p.x); + // D = Y1 * Y2 + var d = this.y.redMul(p.y); + // E = d * C * D + var e = this.curve.d.redMul(c).redMul(d); + // F = B - E + var f = b.redSub(e); + // G = B + E + var g = b.redAdd(e); + // X3 = A * F * ((X1 + Y1) * (X2 + Y2) - C - D) + var tmp = this.x.redAdd(this.y).redMul(p.x.redAdd(p.y)).redISub(c).redISub(d); + var nx = a.redMul(f).redMul(tmp); + var ny; + var nz; + if (this.curve.twisted) { + // Y3 = A * G * (D - a * C) + ny = a.redMul(g).redMul(d.redSub(this.curve._mulA(c))); + // Z3 = F * G + nz = f.redMul(g); + } else { + // Y3 = A * G * (D - C) + ny = a.redMul(g).redMul(d.redSub(c)); + // Z3 = c * F * G + nz = this.curve._mulC(f).redMul(g); + } + return this.curve.point(nx, ny, nz); +}; + +Point.prototype.add = function add(p) { + if (this.isInfinity()) + return p; + if (p.isInfinity()) + return this; + + if (this.curve.extended) + return this._extAdd(p); + else + return this._projAdd(p); +}; + +Point.prototype.mul = function mul(k) { + if (this._hasDoubles(k)) + return this.curve._fixedNafMul(this, k); + else + return this.curve._wnafMul(this, k); +}; + +Point.prototype.mulAdd = function mulAdd(k1, p, k2) { + return this.curve._wnafMulAdd(1, [ this, p ], [ k1, k2 ], 2, false); +}; + +Point.prototype.jmulAdd = function jmulAdd(k1, p, k2) { + return this.curve._wnafMulAdd(1, [ this, p ], [ k1, k2 ], 2, true); +}; + +Point.prototype.normalize = function normalize() { + if (this.zOne) + return this; + + // Normalize coordinates + var zi = this.z.redInvm(); + this.x = this.x.redMul(zi); + this.y = this.y.redMul(zi); + if (this.t) + this.t = this.t.redMul(zi); + this.z = this.curve.one; + this.zOne = true; + return this; +}; + +Point.prototype.neg = function neg() { + return this.curve.point(this.x.redNeg(), + this.y, + this.z, + this.t && this.t.redNeg()); +}; + +Point.prototype.getX = function getX() { + this.normalize(); + return this.x.fromRed(); +}; + +Point.prototype.getY = function getY() { + this.normalize(); + return this.y.fromRed(); +}; + +Point.prototype.eq = function eq(other) { + return this === other || + this.getX().cmp(other.getX()) === 0 && + this.getY().cmp(other.getY()) === 0; +}; + +Point.prototype.eqXToP = function eqXToP(x) { + var rx = x.toRed(this.curve.red).redMul(this.z); + if (this.x.cmp(rx) === 0) + return true; + + var xc = x.clone(); + var t = this.curve.redN.redMul(this.z); + for (;;) { + xc.iadd(this.curve.n); + if (xc.cmp(this.curve.p) >= 0) + return false; + + rx.redIAdd(t); + if (this.x.cmp(rx) === 0) + return true; + } +}; + +// Compatibility with BaseCurve +Point.prototype.toP = Point.prototype.normalize; +Point.prototype.mixedAdd = Point.prototype.add; + +},{"109":109,"22":22,"75":75,"88":88}],77:[function(require,module,exports){ +'use strict'; + +var curve = exports; + +curve.base = require(75); +curve.short = require(79); +curve.mont = require(78); +curve.edwards = require(76); + +},{"75":75,"76":76,"78":78,"79":79}],78:[function(require,module,exports){ +'use strict'; + +var BN = require(22); +var inherits = require(109); +var Base = require(75); + +var utils = require(88); + +function MontCurve(conf) { + Base.call(this, 'mont', conf); + + this.a = new BN(conf.a, 16).toRed(this.red); + this.b = new BN(conf.b, 16).toRed(this.red); + this.i4 = new BN(4).toRed(this.red).redInvm(); + this.two = new BN(2).toRed(this.red); + this.a24 = this.i4.redMul(this.a.redAdd(this.two)); +} +inherits(MontCurve, Base); +module.exports = MontCurve; + +MontCurve.prototype.validate = function validate(point) { + var x = point.normalize().x; + var x2 = x.redSqr(); + var rhs = x2.redMul(x).redAdd(x2.redMul(this.a)).redAdd(x); + var y = rhs.redSqrt(); + + return y.redSqr().cmp(rhs) === 0; +}; + +function Point(curve, x, z) { + Base.BasePoint.call(this, curve, 'projective'); + if (x === null && z === null) { + this.x = this.curve.one; + this.z = this.curve.zero; + } else { + this.x = new BN(x, 16); + this.z = new BN(z, 16); + if (!this.x.red) + this.x = this.x.toRed(this.curve.red); + if (!this.z.red) + this.z = this.z.toRed(this.curve.red); + } +} +inherits(Point, Base.BasePoint); + +MontCurve.prototype.decodePoint = function decodePoint(bytes, enc) { + return this.point(utils.toArray(bytes, enc), 1); +}; + +MontCurve.prototype.point = function point(x, z) { + return new Point(this, x, z); +}; + +MontCurve.prototype.pointFromJSON = function pointFromJSON(obj) { + return Point.fromJSON(this, obj); +}; + +Point.prototype.precompute = function precompute() { + // No-op +}; + +Point.prototype._encode = function _encode() { + return this.getX().toArray('be', this.curve.p.byteLength()); +}; + +Point.fromJSON = function fromJSON(curve, obj) { + return new Point(curve, obj[0], obj[1] || curve.one); +}; + +Point.prototype.inspect = function inspect() { + if (this.isInfinity()) + return ''; + return ''; +}; + +Point.prototype.isInfinity = function isInfinity() { + // XXX This code assumes that zero is always zero in red + return this.z.cmpn(0) === 0; +}; + +Point.prototype.dbl = function dbl() { + // http://hyperelliptic.org/EFD/g1p/auto-montgom-xz.html#doubling-dbl-1987-m-3 + // 2M + 2S + 4A + + // A = X1 + Z1 + var a = this.x.redAdd(this.z); + // AA = A^2 + var aa = a.redSqr(); + // B = X1 - Z1 + var b = this.x.redSub(this.z); + // BB = B^2 + var bb = b.redSqr(); + // C = AA - BB + var c = aa.redSub(bb); + // X3 = AA * BB + var nx = aa.redMul(bb); + // Z3 = C * (BB + A24 * C) + var nz = c.redMul(bb.redAdd(this.curve.a24.redMul(c))); + return this.curve.point(nx, nz); +}; + +Point.prototype.add = function add() { + throw new Error('Not supported on Montgomery curve'); +}; + +Point.prototype.diffAdd = function diffAdd(p, diff) { + // http://hyperelliptic.org/EFD/g1p/auto-montgom-xz.html#diffadd-dadd-1987-m-3 + // 4M + 2S + 6A + + // A = X2 + Z2 + var a = this.x.redAdd(this.z); + // B = X2 - Z2 + var b = this.x.redSub(this.z); + // C = X3 + Z3 + var c = p.x.redAdd(p.z); + // D = X3 - Z3 + var d = p.x.redSub(p.z); + // DA = D * A + var da = d.redMul(a); + // CB = C * B + var cb = c.redMul(b); + // X5 = Z1 * (DA + CB)^2 + var nx = diff.z.redMul(da.redAdd(cb).redSqr()); + // Z5 = X1 * (DA - CB)^2 + var nz = diff.x.redMul(da.redISub(cb).redSqr()); + return this.curve.point(nx, nz); +}; + +Point.prototype.mul = function mul(k) { + var t = k.clone(); + var a = this; // (N / 2) * Q + Q + var b = this.curve.point(null, null); // (N / 2) * Q + var c = this; // Q + + for (var bits = []; t.cmpn(0) !== 0; t.iushrn(1)) + bits.push(t.andln(1)); + + for (var i = bits.length - 1; i >= 0; i--) { + if (bits[i] === 0) { + // N * Q + Q = ((N / 2) * Q + Q)) + (N / 2) * Q + a = a.diffAdd(b, c); + // N * Q = 2 * ((N / 2) * Q + Q)) + b = b.dbl(); + } else { + // N * Q = ((N / 2) * Q + Q) + ((N / 2) * Q) + b = a.diffAdd(b, c); + // N * Q + Q = 2 * ((N / 2) * Q + Q) + a = a.dbl(); + } + } + return b; +}; + +Point.prototype.mulAdd = function mulAdd() { + throw new Error('Not supported on Montgomery curve'); +}; + +Point.prototype.jumlAdd = function jumlAdd() { + throw new Error('Not supported on Montgomery curve'); +}; + +Point.prototype.eq = function eq(other) { + return this.getX().cmp(other.getX()) === 0; +}; + +Point.prototype.normalize = function normalize() { + this.x = this.x.redMul(this.z.redInvm()); + this.z = this.curve.one; + return this; +}; + +Point.prototype.getX = function getX() { + // Normalize coordinates + this.normalize(); + + return this.x.fromRed(); +}; + +},{"109":109,"22":22,"75":75,"88":88}],79:[function(require,module,exports){ +'use strict'; + +var utils = require(88); +var BN = require(22); +var inherits = require(109); +var Base = require(75); + +var assert = utils.assert; + +function ShortCurve(conf) { + Base.call(this, 'short', conf); + + this.a = new BN(conf.a, 16).toRed(this.red); + this.b = new BN(conf.b, 16).toRed(this.red); + this.tinv = this.two.redInvm(); + + this.zeroA = this.a.fromRed().cmpn(0) === 0; + this.threeA = this.a.fromRed().sub(this.p).cmpn(-3) === 0; + + // If the curve is endomorphic, precalculate beta and lambda + this.endo = this._getEndomorphism(conf); + this._endoWnafT1 = new Array(4); + this._endoWnafT2 = new Array(4); +} +inherits(ShortCurve, Base); +module.exports = ShortCurve; + +ShortCurve.prototype._getEndomorphism = function _getEndomorphism(conf) { + // No efficient endomorphism + if (!this.zeroA || !this.g || !this.n || this.p.modn(3) !== 1) + return; + + // Compute beta and lambda, that lambda * P = (beta * Px; Py) + var beta; + var lambda; + if (conf.beta) { + beta = new BN(conf.beta, 16).toRed(this.red); + } else { + var betas = this._getEndoRoots(this.p); + // Choose the smallest beta + beta = betas[0].cmp(betas[1]) < 0 ? betas[0] : betas[1]; + beta = beta.toRed(this.red); + } + if (conf.lambda) { + lambda = new BN(conf.lambda, 16); + } else { + // Choose the lambda that is matching selected beta + var lambdas = this._getEndoRoots(this.n); + if (this.g.mul(lambdas[0]).x.cmp(this.g.x.redMul(beta)) === 0) { + lambda = lambdas[0]; + } else { + lambda = lambdas[1]; + assert(this.g.mul(lambda).x.cmp(this.g.x.redMul(beta)) === 0); + } + } + + // Get basis vectors, used for balanced length-two representation + var basis; + if (conf.basis) { + basis = conf.basis.map(function(vec) { + return { + a: new BN(vec.a, 16), + b: new BN(vec.b, 16) + }; + }); + } else { + basis = this._getEndoBasis(lambda); + } + + return { + beta: beta, + lambda: lambda, + basis: basis + }; +}; + +ShortCurve.prototype._getEndoRoots = function _getEndoRoots(num) { + // Find roots of for x^2 + x + 1 in F + // Root = (-1 +- Sqrt(-3)) / 2 + // + var red = num === this.p ? this.red : BN.mont(num); + var tinv = new BN(2).toRed(red).redInvm(); + var ntinv = tinv.redNeg(); + + var s = new BN(3).toRed(red).redNeg().redSqrt().redMul(tinv); + + var l1 = ntinv.redAdd(s).fromRed(); + var l2 = ntinv.redSub(s).fromRed(); + return [ l1, l2 ]; +}; + +ShortCurve.prototype._getEndoBasis = function _getEndoBasis(lambda) { + // aprxSqrt >= sqrt(this.n) + var aprxSqrt = this.n.ushrn(Math.floor(this.n.bitLength() / 2)); + + // 3.74 + // Run EGCD, until r(L + 1) < aprxSqrt + var u = lambda; + var v = this.n.clone(); + var x1 = new BN(1); + var y1 = new BN(0); + var x2 = new BN(0); + var y2 = new BN(1); + + // NOTE: all vectors are roots of: a + b * lambda = 0 (mod n) + var a0; + var b0; + // First vector + var a1; + var b1; + // Second vector + var a2; + var b2; + + var prevR; + var i = 0; + var r; + var x; + while (u.cmpn(0) !== 0) { + var q = v.div(u); + r = v.sub(q.mul(u)); + x = x2.sub(q.mul(x1)); + var y = y2.sub(q.mul(y1)); + + if (!a1 && r.cmp(aprxSqrt) < 0) { + a0 = prevR.neg(); + b0 = x1; + a1 = r.neg(); + b1 = x; + } else if (a1 && ++i === 2) { + break; + } + prevR = r; + + v = u; + u = r; + x2 = x1; + x1 = x; + y2 = y1; + y1 = y; + } + a2 = r.neg(); + b2 = x; + + var len1 = a1.sqr().add(b1.sqr()); + var len2 = a2.sqr().add(b2.sqr()); + if (len2.cmp(len1) >= 0) { + a2 = a0; + b2 = b0; + } + + // Normalize signs + if (a1.negative) { + a1 = a1.neg(); + b1 = b1.neg(); + } + if (a2.negative) { + a2 = a2.neg(); + b2 = b2.neg(); + } + + return [ + { a: a1, b: b1 }, + { a: a2, b: b2 } + ]; +}; + +ShortCurve.prototype._endoSplit = function _endoSplit(k) { + var basis = this.endo.basis; + var v1 = basis[0]; + var v2 = basis[1]; + + var c1 = v2.b.mul(k).divRound(this.n); + var c2 = v1.b.neg().mul(k).divRound(this.n); + + var p1 = c1.mul(v1.a); + var p2 = c2.mul(v2.a); + var q1 = c1.mul(v1.b); + var q2 = c2.mul(v2.b); + + // Calculate answer + var k1 = k.sub(p1).sub(p2); + var k2 = q1.add(q2).neg(); + return { k1: k1, k2: k2 }; +}; + +ShortCurve.prototype.pointFromX = function pointFromX(x, odd) { + x = new BN(x, 16); + if (!x.red) + x = x.toRed(this.red); + + var y2 = x.redSqr().redMul(x).redIAdd(x.redMul(this.a)).redIAdd(this.b); + var y = y2.redSqrt(); + if (y.redSqr().redSub(y2).cmp(this.zero) !== 0) + throw new Error('invalid point'); + + // XXX Is there any way to tell if the number is odd without converting it + // to non-red form? + var isOdd = y.fromRed().isOdd(); + if (odd && !isOdd || !odd && isOdd) + y = y.redNeg(); + + return this.point(x, y); +}; + +ShortCurve.prototype.validate = function validate(point) { + if (point.inf) + return true; + + var x = point.x; + var y = point.y; + + var ax = this.a.redMul(x); + var rhs = x.redSqr().redMul(x).redIAdd(ax).redIAdd(this.b); + return y.redSqr().redISub(rhs).cmpn(0) === 0; +}; + +ShortCurve.prototype._endoWnafMulAdd = + function _endoWnafMulAdd(points, coeffs, jacobianResult) { + var npoints = this._endoWnafT1; + var ncoeffs = this._endoWnafT2; + for (var i = 0; i < points.length; i++) { + var split = this._endoSplit(coeffs[i]); + var p = points[i]; + var beta = p._getBeta(); + + if (split.k1.negative) { + split.k1.ineg(); + p = p.neg(true); + } + if (split.k2.negative) { + split.k2.ineg(); + beta = beta.neg(true); + } + + npoints[i * 2] = p; + npoints[i * 2 + 1] = beta; + ncoeffs[i * 2] = split.k1; + ncoeffs[i * 2 + 1] = split.k2; + } + var res = this._wnafMulAdd(1, npoints, ncoeffs, i * 2, jacobianResult); + + // Clean-up references to points and coefficients + for (var j = 0; j < i * 2; j++) { + npoints[j] = null; + ncoeffs[j] = null; + } + return res; +}; + +function Point(curve, x, y, isRed) { + Base.BasePoint.call(this, curve, 'affine'); + if (x === null && y === null) { + this.x = null; + this.y = null; + this.inf = true; + } else { + this.x = new BN(x, 16); + this.y = new BN(y, 16); + // Force redgomery representation when loading from JSON + if (isRed) { + this.x.forceRed(this.curve.red); + this.y.forceRed(this.curve.red); + } + if (!this.x.red) + this.x = this.x.toRed(this.curve.red); + if (!this.y.red) + this.y = this.y.toRed(this.curve.red); + this.inf = false; + } +} +inherits(Point, Base.BasePoint); + +ShortCurve.prototype.point = function point(x, y, isRed) { + return new Point(this, x, y, isRed); +}; + +ShortCurve.prototype.pointFromJSON = function pointFromJSON(obj, red) { + return Point.fromJSON(this, obj, red); +}; + +Point.prototype._getBeta = function _getBeta() { + if (!this.curve.endo) + return; + + var pre = this.precomputed; + if (pre && pre.beta) + return pre.beta; + + var beta = this.curve.point(this.x.redMul(this.curve.endo.beta), this.y); + if (pre) { + var curve = this.curve; + var endoMul = function(p) { + return curve.point(p.x.redMul(curve.endo.beta), p.y); + }; + pre.beta = beta; + beta.precomputed = { + beta: null, + naf: pre.naf && { + wnd: pre.naf.wnd, + points: pre.naf.points.map(endoMul) + }, + doubles: pre.doubles && { + step: pre.doubles.step, + points: pre.doubles.points.map(endoMul) + } + }; + } + return beta; +}; + +Point.prototype.toJSON = function toJSON() { + if (!this.precomputed) + return [ this.x, this.y ]; + + return [ this.x, this.y, this.precomputed && { + doubles: this.precomputed.doubles && { + step: this.precomputed.doubles.step, + points: this.precomputed.doubles.points.slice(1) + }, + naf: this.precomputed.naf && { + wnd: this.precomputed.naf.wnd, + points: this.precomputed.naf.points.slice(1) + } + } ]; +}; + +Point.fromJSON = function fromJSON(curve, obj, red) { + if (typeof obj === 'string') + obj = JSON.parse(obj); + var res = curve.point(obj[0], obj[1], red); + if (!obj[2]) + return res; + + function obj2point(obj) { + return curve.point(obj[0], obj[1], red); + } + + var pre = obj[2]; + res.precomputed = { + beta: null, + doubles: pre.doubles && { + step: pre.doubles.step, + points: [ res ].concat(pre.doubles.points.map(obj2point)) + }, + naf: pre.naf && { + wnd: pre.naf.wnd, + points: [ res ].concat(pre.naf.points.map(obj2point)) + } + }; + return res; +}; + +Point.prototype.inspect = function inspect() { + if (this.isInfinity()) + return ''; + return ''; +}; + +Point.prototype.isInfinity = function isInfinity() { + return this.inf; +}; + +Point.prototype.add = function add(p) { + // O + P = P + if (this.inf) + return p; + + // P + O = P + if (p.inf) + return this; + + // P + P = 2P + if (this.eq(p)) + return this.dbl(); + + // P + (-P) = O + if (this.neg().eq(p)) + return this.curve.point(null, null); + + // P + Q = O + if (this.x.cmp(p.x) === 0) + return this.curve.point(null, null); + + var c = this.y.redSub(p.y); + if (c.cmpn(0) !== 0) + c = c.redMul(this.x.redSub(p.x).redInvm()); + var nx = c.redSqr().redISub(this.x).redISub(p.x); + var ny = c.redMul(this.x.redSub(nx)).redISub(this.y); + return this.curve.point(nx, ny); +}; + +Point.prototype.dbl = function dbl() { + if (this.inf) + return this; + + // 2P = O + var ys1 = this.y.redAdd(this.y); + if (ys1.cmpn(0) === 0) + return this.curve.point(null, null); + + var a = this.curve.a; + + var x2 = this.x.redSqr(); + var dyinv = ys1.redInvm(); + var c = x2.redAdd(x2).redIAdd(x2).redIAdd(a).redMul(dyinv); + + var nx = c.redSqr().redISub(this.x.redAdd(this.x)); + var ny = c.redMul(this.x.redSub(nx)).redISub(this.y); + return this.curve.point(nx, ny); +}; + +Point.prototype.getX = function getX() { + return this.x.fromRed(); +}; + +Point.prototype.getY = function getY() { + return this.y.fromRed(); +}; + +Point.prototype.mul = function mul(k) { + k = new BN(k, 16); + if (this.isInfinity()) + return this; + else if (this._hasDoubles(k)) + return this.curve._fixedNafMul(this, k); + else if (this.curve.endo) + return this.curve._endoWnafMulAdd([ this ], [ k ]); + else + return this.curve._wnafMul(this, k); +}; + +Point.prototype.mulAdd = function mulAdd(k1, p2, k2) { + var points = [ this, p2 ]; + var coeffs = [ k1, k2 ]; + if (this.curve.endo) + return this.curve._endoWnafMulAdd(points, coeffs); + else + return this.curve._wnafMulAdd(1, points, coeffs, 2); +}; + +Point.prototype.jmulAdd = function jmulAdd(k1, p2, k2) { + var points = [ this, p2 ]; + var coeffs = [ k1, k2 ]; + if (this.curve.endo) + return this.curve._endoWnafMulAdd(points, coeffs, true); + else + return this.curve._wnafMulAdd(1, points, coeffs, 2, true); +}; + +Point.prototype.eq = function eq(p) { + return this === p || + this.inf === p.inf && + (this.inf || this.x.cmp(p.x) === 0 && this.y.cmp(p.y) === 0); +}; + +Point.prototype.neg = function neg(_precompute) { + if (this.inf) + return this; + + var res = this.curve.point(this.x, this.y.redNeg()); + if (_precompute && this.precomputed) { + var pre = this.precomputed; + var negate = function(p) { + return p.neg(); + }; + res.precomputed = { + naf: pre.naf && { + wnd: pre.naf.wnd, + points: pre.naf.points.map(negate) + }, + doubles: pre.doubles && { + step: pre.doubles.step, + points: pre.doubles.points.map(negate) + } + }; + } + return res; +}; + +Point.prototype.toJ = function toJ() { + if (this.inf) + return this.curve.jpoint(null, null, null); + + var res = this.curve.jpoint(this.x, this.y, this.curve.one); + return res; +}; + +function JPoint(curve, x, y, z) { + Base.BasePoint.call(this, curve, 'jacobian'); + if (x === null && y === null && z === null) { + this.x = this.curve.one; + this.y = this.curve.one; + this.z = new BN(0); + } else { + this.x = new BN(x, 16); + this.y = new BN(y, 16); + this.z = new BN(z, 16); + } + if (!this.x.red) + this.x = this.x.toRed(this.curve.red); + if (!this.y.red) + this.y = this.y.toRed(this.curve.red); + if (!this.z.red) + this.z = this.z.toRed(this.curve.red); + + this.zOne = this.z === this.curve.one; +} +inherits(JPoint, Base.BasePoint); + +ShortCurve.prototype.jpoint = function jpoint(x, y, z) { + return new JPoint(this, x, y, z); +}; + +JPoint.prototype.toP = function toP() { + if (this.isInfinity()) + return this.curve.point(null, null); + + var zinv = this.z.redInvm(); + var zinv2 = zinv.redSqr(); + var ax = this.x.redMul(zinv2); + var ay = this.y.redMul(zinv2).redMul(zinv); + + return this.curve.point(ax, ay); +}; + +JPoint.prototype.neg = function neg() { + return this.curve.jpoint(this.x, this.y.redNeg(), this.z); +}; + +JPoint.prototype.add = function add(p) { + // O + P = P + if (this.isInfinity()) + return p; + + // P + O = P + if (p.isInfinity()) + return this; + + // 12M + 4S + 7A + var pz2 = p.z.redSqr(); + var z2 = this.z.redSqr(); + var u1 = this.x.redMul(pz2); + var u2 = p.x.redMul(z2); + var s1 = this.y.redMul(pz2.redMul(p.z)); + var s2 = p.y.redMul(z2.redMul(this.z)); + + var h = u1.redSub(u2); + var r = s1.redSub(s2); + if (h.cmpn(0) === 0) { + if (r.cmpn(0) !== 0) + return this.curve.jpoint(null, null, null); + else + return this.dbl(); + } + + var h2 = h.redSqr(); + var h3 = h2.redMul(h); + var v = u1.redMul(h2); + + var nx = r.redSqr().redIAdd(h3).redISub(v).redISub(v); + var ny = r.redMul(v.redISub(nx)).redISub(s1.redMul(h3)); + var nz = this.z.redMul(p.z).redMul(h); + + return this.curve.jpoint(nx, ny, nz); +}; + +JPoint.prototype.mixedAdd = function mixedAdd(p) { + // O + P = P + if (this.isInfinity()) + return p.toJ(); + + // P + O = P + if (p.isInfinity()) + return this; + + // 8M + 3S + 7A + var z2 = this.z.redSqr(); + var u1 = this.x; + var u2 = p.x.redMul(z2); + var s1 = this.y; + var s2 = p.y.redMul(z2).redMul(this.z); + + var h = u1.redSub(u2); + var r = s1.redSub(s2); + if (h.cmpn(0) === 0) { + if (r.cmpn(0) !== 0) + return this.curve.jpoint(null, null, null); + else + return this.dbl(); + } + + var h2 = h.redSqr(); + var h3 = h2.redMul(h); + var v = u1.redMul(h2); + + var nx = r.redSqr().redIAdd(h3).redISub(v).redISub(v); + var ny = r.redMul(v.redISub(nx)).redISub(s1.redMul(h3)); + var nz = this.z.redMul(h); + + return this.curve.jpoint(nx, ny, nz); +}; + +JPoint.prototype.dblp = function dblp(pow) { + if (pow === 0) + return this; + if (this.isInfinity()) + return this; + if (!pow) + return this.dbl(); + + if (this.curve.zeroA || this.curve.threeA) { + var r = this; + for (var i = 0; i < pow; i++) + r = r.dbl(); + return r; + } + + // 1M + 2S + 1A + N * (4S + 5M + 8A) + // N = 1 => 6M + 6S + 9A + var a = this.curve.a; + var tinv = this.curve.tinv; + + var jx = this.x; + var jy = this.y; + var jz = this.z; + var jz4 = jz.redSqr().redSqr(); + + // Reuse results + var jyd = jy.redAdd(jy); + for (var i = 0; i < pow; i++) { + var jx2 = jx.redSqr(); + var jyd2 = jyd.redSqr(); + var jyd4 = jyd2.redSqr(); + var c = jx2.redAdd(jx2).redIAdd(jx2).redIAdd(a.redMul(jz4)); + + var t1 = jx.redMul(jyd2); + var nx = c.redSqr().redISub(t1.redAdd(t1)); + var t2 = t1.redISub(nx); + var dny = c.redMul(t2); + dny = dny.redIAdd(dny).redISub(jyd4); + var nz = jyd.redMul(jz); + if (i + 1 < pow) + jz4 = jz4.redMul(jyd4); + + jx = nx; + jz = nz; + jyd = dny; + } + + return this.curve.jpoint(jx, jyd.redMul(tinv), jz); +}; + +JPoint.prototype.dbl = function dbl() { + if (this.isInfinity()) + return this; + + if (this.curve.zeroA) + return this._zeroDbl(); + else if (this.curve.threeA) + return this._threeDbl(); + else + return this._dbl(); +}; + +JPoint.prototype._zeroDbl = function _zeroDbl() { + var nx; + var ny; + var nz; + // Z = 1 + if (this.zOne) { + // hyperelliptic.org/EFD/g1p/auto-shortw-jacobian-0.html + // #doubling-mdbl-2007-bl + // 1M + 5S + 14A + + // XX = X1^2 + var xx = this.x.redSqr(); + // YY = Y1^2 + var yy = this.y.redSqr(); + // YYYY = YY^2 + var yyyy = yy.redSqr(); + // S = 2 * ((X1 + YY)^2 - XX - YYYY) + var s = this.x.redAdd(yy).redSqr().redISub(xx).redISub(yyyy); + s = s.redIAdd(s); + // M = 3 * XX + a; a = 0 + var m = xx.redAdd(xx).redIAdd(xx); + // T = M ^ 2 - 2*S + var t = m.redSqr().redISub(s).redISub(s); + + // 8 * YYYY + var yyyy8 = yyyy.redIAdd(yyyy); + yyyy8 = yyyy8.redIAdd(yyyy8); + yyyy8 = yyyy8.redIAdd(yyyy8); + + // X3 = T + nx = t; + // Y3 = M * (S - T) - 8 * YYYY + ny = m.redMul(s.redISub(t)).redISub(yyyy8); + // Z3 = 2*Y1 + nz = this.y.redAdd(this.y); + } else { + // hyperelliptic.org/EFD/g1p/auto-shortw-jacobian-0.html + // #doubling-dbl-2009-l + // 2M + 5S + 13A + + // A = X1^2 + var a = this.x.redSqr(); + // B = Y1^2 + var b = this.y.redSqr(); + // C = B^2 + var c = b.redSqr(); + // D = 2 * ((X1 + B)^2 - A - C) + var d = this.x.redAdd(b).redSqr().redISub(a).redISub(c); + d = d.redIAdd(d); + // E = 3 * A + var e = a.redAdd(a).redIAdd(a); + // F = E^2 + var f = e.redSqr(); + + // 8 * C + var c8 = c.redIAdd(c); + c8 = c8.redIAdd(c8); + c8 = c8.redIAdd(c8); + + // X3 = F - 2 * D + nx = f.redISub(d).redISub(d); + // Y3 = E * (D - X3) - 8 * C + ny = e.redMul(d.redISub(nx)).redISub(c8); + // Z3 = 2 * Y1 * Z1 + nz = this.y.redMul(this.z); + nz = nz.redIAdd(nz); + } + + return this.curve.jpoint(nx, ny, nz); +}; + +JPoint.prototype._threeDbl = function _threeDbl() { + var nx; + var ny; + var nz; + // Z = 1 + if (this.zOne) { + // hyperelliptic.org/EFD/g1p/auto-shortw-jacobian-3.html + // #doubling-mdbl-2007-bl + // 1M + 5S + 15A + + // XX = X1^2 + var xx = this.x.redSqr(); + // YY = Y1^2 + var yy = this.y.redSqr(); + // YYYY = YY^2 + var yyyy = yy.redSqr(); + // S = 2 * ((X1 + YY)^2 - XX - YYYY) + var s = this.x.redAdd(yy).redSqr().redISub(xx).redISub(yyyy); + s = s.redIAdd(s); + // M = 3 * XX + a + var m = xx.redAdd(xx).redIAdd(xx).redIAdd(this.curve.a); + // T = M^2 - 2 * S + var t = m.redSqr().redISub(s).redISub(s); + // X3 = T + nx = t; + // Y3 = M * (S - T) - 8 * YYYY + var yyyy8 = yyyy.redIAdd(yyyy); + yyyy8 = yyyy8.redIAdd(yyyy8); + yyyy8 = yyyy8.redIAdd(yyyy8); + ny = m.redMul(s.redISub(t)).redISub(yyyy8); + // Z3 = 2 * Y1 + nz = this.y.redAdd(this.y); + } else { + // hyperelliptic.org/EFD/g1p/auto-shortw-jacobian-3.html#doubling-dbl-2001-b + // 3M + 5S + + // delta = Z1^2 + var delta = this.z.redSqr(); + // gamma = Y1^2 + var gamma = this.y.redSqr(); + // beta = X1 * gamma + var beta = this.x.redMul(gamma); + // alpha = 3 * (X1 - delta) * (X1 + delta) + var alpha = this.x.redSub(delta).redMul(this.x.redAdd(delta)); + alpha = alpha.redAdd(alpha).redIAdd(alpha); + // X3 = alpha^2 - 8 * beta + var beta4 = beta.redIAdd(beta); + beta4 = beta4.redIAdd(beta4); + var beta8 = beta4.redAdd(beta4); + nx = alpha.redSqr().redISub(beta8); + // Z3 = (Y1 + Z1)^2 - gamma - delta + nz = this.y.redAdd(this.z).redSqr().redISub(gamma).redISub(delta); + // Y3 = alpha * (4 * beta - X3) - 8 * gamma^2 + var ggamma8 = gamma.redSqr(); + ggamma8 = ggamma8.redIAdd(ggamma8); + ggamma8 = ggamma8.redIAdd(ggamma8); + ggamma8 = ggamma8.redIAdd(ggamma8); + ny = alpha.redMul(beta4.redISub(nx)).redISub(ggamma8); + } + + return this.curve.jpoint(nx, ny, nz); +}; + +JPoint.prototype._dbl = function _dbl() { + var a = this.curve.a; + + // 4M + 6S + 10A + var jx = this.x; + var jy = this.y; + var jz = this.z; + var jz4 = jz.redSqr().redSqr(); + + var jx2 = jx.redSqr(); + var jy2 = jy.redSqr(); + + var c = jx2.redAdd(jx2).redIAdd(jx2).redIAdd(a.redMul(jz4)); + + var jxd4 = jx.redAdd(jx); + jxd4 = jxd4.redIAdd(jxd4); + var t1 = jxd4.redMul(jy2); + var nx = c.redSqr().redISub(t1.redAdd(t1)); + var t2 = t1.redISub(nx); + + var jyd8 = jy2.redSqr(); + jyd8 = jyd8.redIAdd(jyd8); + jyd8 = jyd8.redIAdd(jyd8); + jyd8 = jyd8.redIAdd(jyd8); + var ny = c.redMul(t2).redISub(jyd8); + var nz = jy.redAdd(jy).redMul(jz); + + return this.curve.jpoint(nx, ny, nz); +}; + +JPoint.prototype.trpl = function trpl() { + if (!this.curve.zeroA) + return this.dbl().add(this); + + // hyperelliptic.org/EFD/g1p/auto-shortw-jacobian-0.html#tripling-tpl-2007-bl + // 5M + 10S + ... + + // XX = X1^2 + var xx = this.x.redSqr(); + // YY = Y1^2 + var yy = this.y.redSqr(); + // ZZ = Z1^2 + var zz = this.z.redSqr(); + // YYYY = YY^2 + var yyyy = yy.redSqr(); + // M = 3 * XX + a * ZZ2; a = 0 + var m = xx.redAdd(xx).redIAdd(xx); + // MM = M^2 + var mm = m.redSqr(); + // E = 6 * ((X1 + YY)^2 - XX - YYYY) - MM + var e = this.x.redAdd(yy).redSqr().redISub(xx).redISub(yyyy); + e = e.redIAdd(e); + e = e.redAdd(e).redIAdd(e); + e = e.redISub(mm); + // EE = E^2 + var ee = e.redSqr(); + // T = 16*YYYY + var t = yyyy.redIAdd(yyyy); + t = t.redIAdd(t); + t = t.redIAdd(t); + t = t.redIAdd(t); + // U = (M + E)^2 - MM - EE - T + var u = m.redIAdd(e).redSqr().redISub(mm).redISub(ee).redISub(t); + // X3 = 4 * (X1 * EE - 4 * YY * U) + var yyu4 = yy.redMul(u); + yyu4 = yyu4.redIAdd(yyu4); + yyu4 = yyu4.redIAdd(yyu4); + var nx = this.x.redMul(ee).redISub(yyu4); + nx = nx.redIAdd(nx); + nx = nx.redIAdd(nx); + // Y3 = 8 * Y1 * (U * (T - U) - E * EE) + var ny = this.y.redMul(u.redMul(t.redISub(u)).redISub(e.redMul(ee))); + ny = ny.redIAdd(ny); + ny = ny.redIAdd(ny); + ny = ny.redIAdd(ny); + // Z3 = (Z1 + E)^2 - ZZ - EE + var nz = this.z.redAdd(e).redSqr().redISub(zz).redISub(ee); + + return this.curve.jpoint(nx, ny, nz); +}; + +JPoint.prototype.mul = function mul(k, kbase) { + k = new BN(k, kbase); + + return this.curve._wnafMul(this, k); +}; + +JPoint.prototype.eq = function eq(p) { + if (p.type === 'affine') + return this.eq(p.toJ()); + + if (this === p) + return true; + + // x1 * z2^2 == x2 * z1^2 + var z2 = this.z.redSqr(); + var pz2 = p.z.redSqr(); + if (this.x.redMul(pz2).redISub(p.x.redMul(z2)).cmpn(0) !== 0) + return false; + + // y1 * z2^3 == y2 * z1^3 + var z3 = z2.redMul(this.z); + var pz3 = pz2.redMul(p.z); + return this.y.redMul(pz3).redISub(p.y.redMul(z3)).cmpn(0) === 0; +}; + +JPoint.prototype.eqXToP = function eqXToP(x) { + var zs = this.z.redSqr(); + var rx = x.toRed(this.curve.red).redMul(zs); + if (this.x.cmp(rx) === 0) + return true; + + var xc = x.clone(); + var t = this.curve.redN.redMul(zs); + for (;;) { + xc.iadd(this.curve.n); + if (xc.cmp(this.curve.p) >= 0) + return false; + + rx.redIAdd(t); + if (this.x.cmp(rx) === 0) + return true; } }; -},{}],84:[function(require,module,exports){ -'use strict'; +JPoint.prototype.inspect = function inspect() { + if (this.isInfinity()) + return ''; + return ''; +}; + +JPoint.prototype.isInfinity = function isInfinity() { + // XXX This code assumes that zero is always zero in red + return this.z.cmpn(0) === 0; +}; + +},{"109":109,"22":22,"75":75,"88":88}],80:[function(require,module,exports){ +'use strict'; + +var curves = exports; + +var hash = require(93); +var curve = require(77); +var utils = require(88); + +var assert = utils.assert; + +function PresetCurve(options) { + if (options.type === 'short') + this.curve = new curve.short(options); + else if (options.type === 'edwards') + this.curve = new curve.edwards(options); + else + this.curve = new curve.mont(options); + this.g = this.curve.g; + this.n = this.curve.n; + this.hash = options.hash; + + assert(this.g.validate(), 'Invalid curve'); + assert(this.g.mul(this.n).isInfinity(), 'Invalid curve, G*N != O'); +} +curves.PresetCurve = PresetCurve; + +function defineCurve(name, options) { + Object.defineProperty(curves, name, { + configurable: true, + enumerable: true, + get: function() { + var curve = new PresetCurve(options); + Object.defineProperty(curves, name, { + configurable: true, + enumerable: true, + value: curve + }); + return curve; + } + }); +} + +defineCurve('p192', { + type: 'short', + prime: 'p192', + p: 'ffffffff ffffffff ffffffff fffffffe ffffffff ffffffff', + a: 'ffffffff ffffffff ffffffff fffffffe ffffffff fffffffc', + b: '64210519 e59c80e7 0fa7e9ab 72243049 feb8deec c146b9b1', + n: 'ffffffff ffffffff ffffffff 99def836 146bc9b1 b4d22831', + hash: hash.sha256, + gRed: false, + g: [ + '188da80e b03090f6 7cbf20eb 43a18800 f4ff0afd 82ff1012', + '07192b95 ffc8da78 631011ed 6b24cdd5 73f977a1 1e794811' + ] +}); + +defineCurve('p224', { + type: 'short', + prime: 'p224', + p: 'ffffffff ffffffff ffffffff ffffffff 00000000 00000000 00000001', + a: 'ffffffff ffffffff ffffffff fffffffe ffffffff ffffffff fffffffe', + b: 'b4050a85 0c04b3ab f5413256 5044b0b7 d7bfd8ba 270b3943 2355ffb4', + n: 'ffffffff ffffffff ffffffff ffff16a2 e0b8f03e 13dd2945 5c5c2a3d', + hash: hash.sha256, + gRed: false, + g: [ + 'b70e0cbd 6bb4bf7f 321390b9 4a03c1d3 56c21122 343280d6 115c1d21', + 'bd376388 b5f723fb 4c22dfe6 cd4375a0 5a074764 44d58199 85007e34' + ] +}); + +defineCurve('p256', { + type: 'short', + prime: null, + p: 'ffffffff 00000001 00000000 00000000 00000000 ffffffff ffffffff ffffffff', + a: 'ffffffff 00000001 00000000 00000000 00000000 ffffffff ffffffff fffffffc', + b: '5ac635d8 aa3a93e7 b3ebbd55 769886bc 651d06b0 cc53b0f6 3bce3c3e 27d2604b', + n: 'ffffffff 00000000 ffffffff ffffffff bce6faad a7179e84 f3b9cac2 fc632551', + hash: hash.sha256, + gRed: false, + g: [ + '6b17d1f2 e12c4247 f8bce6e5 63a440f2 77037d81 2deb33a0 f4a13945 d898c296', + '4fe342e2 fe1a7f9b 8ee7eb4a 7c0f9e16 2bce3357 6b315ece cbb64068 37bf51f5' + ] +}); + +defineCurve('p384', { + type: 'short', + prime: null, + p: 'ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ' + + 'fffffffe ffffffff 00000000 00000000 ffffffff', + a: 'ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ' + + 'fffffffe ffffffff 00000000 00000000 fffffffc', + b: 'b3312fa7 e23ee7e4 988e056b e3f82d19 181d9c6e fe814112 0314088f ' + + '5013875a c656398d 8a2ed19d 2a85c8ed d3ec2aef', + n: 'ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff c7634d81 ' + + 'f4372ddf 581a0db2 48b0a77a ecec196a ccc52973', + hash: hash.sha384, + gRed: false, + g: [ + 'aa87ca22 be8b0537 8eb1c71e f320ad74 6e1d3b62 8ba79b98 59f741e0 82542a38 ' + + '5502f25d bf55296c 3a545e38 72760ab7', + '3617de4a 96262c6f 5d9e98bf 9292dc29 f8f41dbd 289a147c e9da3113 b5f0b8c0 ' + + '0a60b1ce 1d7e819d 7a431d7c 90ea0e5f' + ] +}); + +defineCurve('p521', { + type: 'short', + prime: null, + p: '000001ff ffffffff ffffffff ffffffff ffffffff ffffffff ' + + 'ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ' + + 'ffffffff ffffffff ffffffff ffffffff ffffffff', + a: '000001ff ffffffff ffffffff ffffffff ffffffff ffffffff ' + + 'ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ' + + 'ffffffff ffffffff ffffffff ffffffff fffffffc', + b: '00000051 953eb961 8e1c9a1f 929a21a0 b68540ee a2da725b ' + + '99b315f3 b8b48991 8ef109e1 56193951 ec7e937b 1652c0bd ' + + '3bb1bf07 3573df88 3d2c34f1 ef451fd4 6b503f00', + n: '000001ff ffffffff ffffffff ffffffff ffffffff ffffffff ' + + 'ffffffff ffffffff fffffffa 51868783 bf2f966b 7fcc0148 ' + + 'f709a5d0 3bb5c9b8 899c47ae bb6fb71e 91386409', + hash: hash.sha512, + gRed: false, + g: [ + '000000c6 858e06b7 0404e9cd 9e3ecb66 2395b442 9c648139 ' + + '053fb521 f828af60 6b4d3dba a14b5e77 efe75928 fe1dc127 ' + + 'a2ffa8de 3348b3c1 856a429b f97e7e31 c2e5bd66', + '00000118 39296a78 9a3bc004 5c8a5fb4 2c7d1bd9 98f54449 ' + + '579b4468 17afbd17 273e662c 97ee7299 5ef42640 c550b901 ' + + '3fad0761 353c7086 a272c240 88be9476 9fd16650' + ] +}); + +defineCurve('curve25519', { + type: 'mont', + prime: 'p25519', + p: '7fffffffffffffff ffffffffffffffff ffffffffffffffff ffffffffffffffed', + a: '76d06', + b: '1', + n: '1000000000000000 0000000000000000 14def9dea2f79cd6 5812631a5cf5d3ed', + hash: hash.sha256, + gRed: false, + g: [ + '9' + ] +}); -var utils = exports; -var BN = require(18); +defineCurve('ed25519', { + type: 'edwards', + prime: 'p25519', + p: '7fffffffffffffff ffffffffffffffff ffffffffffffffff ffffffffffffffed', + a: '-1', + c: '1', + // -121665 * (121666^(-1)) (mod P) + d: '52036cee2b6ffe73 8cc740797779e898 00700a4d4141d8ab 75eb4dca135978a3', + n: '1000000000000000 0000000000000000 14def9dea2f79cd6 5812631a5cf5d3ed', + hash: hash.sha256, + gRed: false, + g: [ + '216936d3cd6e53fec0a4e231fdd6dc5c692cc7609525a7b2c9562d608f25d51a', -utils.assert = function assert(val, msg) { - if (!val) - throw new Error(msg || 'Assertion failed'); -}; + // 4/5 + '6666666666666666666666666666666666666666666666666666666666666658' + ] +}); -function toArray(msg, enc) { - if (Array.isArray(msg)) - return msg.slice(); - if (!msg) - return []; - var res = []; - if (typeof msg !== 'string') { - for (var i = 0; i < msg.length; i++) - res[i] = msg[i] | 0; - return res; - } - if (!enc) { - for (var i = 0; i < msg.length; i++) { - var c = msg.charCodeAt(i); - var hi = c >> 8; - var lo = c & 0xff; - if (hi) - res.push(hi, lo); - else - res.push(lo); +var pre; +try { + pre = require(87); +} catch (e) { + pre = undefined; +} + +defineCurve('secp256k1', { + type: 'short', + prime: 'k256', + p: 'ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff fffffffe fffffc2f', + a: '0', + b: '7', + n: 'ffffffff ffffffff ffffffff fffffffe baaedce6 af48a03b bfd25e8c d0364141', + h: '1', + hash: hash.sha256, + + // Precomputed endomorphism + beta: '7ae96a2b657c07106e64479eac3434e99cf0497512f58995c1396c28719501ee', + lambda: '5363ad4cc05c30e0a5261c028812645a122e22ea20816678df02967c1b23bd72', + basis: [ + { + a: '3086d221a7d46bcde86c90e49284eb15', + b: '-e4437ed6010e88286f547fa90abfe4c3' + }, + { + a: '114ca50f7a8e2f3f657c1108d9d44cfd8', + b: '3086d221a7d46bcde86c90e49284eb15' } - } else if (enc === 'hex') { - msg = msg.replace(/[^a-z0-9]+/ig, ''); - if (msg.length % 2 !== 0) - msg = '0' + msg; - for (var i = 0; i < msg.length; i += 2) - res.push(parseInt(msg[i] + msg[i + 1], 16)); + ], + + gRed: false, + g: [ + '79be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798', + '483ada7726a3c4655da4fbfc0e1108a8fd17b448a68554199c47d08ffb10d4b8', + pre + ] +}); + +},{"77":77,"87":87,"88":88,"93":93}],81:[function(require,module,exports){ +'use strict'; + +var BN = require(22); +var HmacDRBG = require(105); +var utils = require(88); +var curves = require(80); +var rand = require(23); +var assert = utils.assert; + +var KeyPair = require(82); +var Signature = require(83); + +function EC(options) { + if (!(this instanceof EC)) + return new EC(options); + + // Shortcut `elliptic.ec(curve-name)` + if (typeof options === 'string') { + assert(curves.hasOwnProperty(options), 'Unknown curve ' + options); + + options = curves[options]; } - return res; -} -utils.toArray = toArray; -function zero2(word) { - if (word.length === 1) - return '0' + word; - else - return word; -} -utils.zero2 = zero2; + // Shortcut for `elliptic.ec(elliptic.curves.curveName)` + if (options instanceof curves.PresetCurve) + options = { curve: options }; -function toHex(msg) { - var res = ''; - for (var i = 0; i < msg.length; i++) - res += zero2(msg[i].toString(16)); - return res; + this.curve = options.curve.curve; + this.n = this.curve.n; + this.nh = this.n.ushrn(1); + this.g = this.curve.g; + + // Point on curve + this.g = options.curve.g; + this.g.precompute(options.curve.n.bitLength() + 1); + + // Hash for function for DRBG + this.hash = options.hash || options.curve.hash; } -utils.toHex = toHex; +module.exports = EC; -utils.encode = function encode(arr, enc) { - if (enc === 'hex') - return toHex(arr); +EC.prototype.keyPair = function keyPair(options) { + return new KeyPair(this, options); +}; + +EC.prototype.keyFromPrivate = function keyFromPrivate(priv, enc) { + return KeyPair.fromPrivate(this, priv, enc); +}; + +EC.prototype.keyFromPublic = function keyFromPublic(pub, enc) { + return KeyPair.fromPublic(this, pub, enc); +}; + +EC.prototype.genKeyPair = function genKeyPair(options) { + if (!options) + options = {}; + + // Instantiate Hmac_DRBG + var drbg = new HmacDRBG({ + hash: this.hash, + pers: options.pers, + persEnc: options.persEnc || 'utf8', + entropy: options.entropy || rand(this.hash.hmacStrength), + entropyEnc: options.entropy && options.entropyEnc || 'utf8', + nonce: this.n.toArray() + }); + + var bytes = this.n.byteLength(); + var ns2 = this.n.sub(new BN(2)); + do { + var priv = new BN(drbg.generate(bytes)); + if (priv.cmp(ns2) > 0) + continue; + + priv.iaddn(1); + return this.keyFromPrivate(priv); + } while (true); +}; + +EC.prototype._truncateToN = function truncateToN(msg, truncOnly) { + var delta = msg.byteLength() * 8 - this.n.bitLength(); + if (delta > 0) + msg = msg.ushrn(delta); + if (!truncOnly && msg.cmp(this.n) >= 0) + return msg.sub(this.n); else - return arr; + return msg; }; -// Represent num in a w-NAF form -function getNAF(num, w) { - var naf = []; - var ws = 1 << (w + 1); - var k = num.clone(); - while (k.cmpn(1) >= 0) { - var z; - if (k.isOdd()) { - var mod = k.andln(ws - 1); - if (mod > (ws >> 1) - 1) - z = (ws >> 1) - mod; - else - z = mod; - k.isubn(z); - } else { - z = 0; +EC.prototype.sign = function sign(msg, key, enc, options) { + if (typeof enc === 'object') { + options = enc; + enc = null; + } + if (!options) + options = {}; + + key = this.keyFromPrivate(key, enc); + msg = this._truncateToN(new BN(msg, 16)); + + // Zero-extend key to provide enough entropy + var bytes = this.n.byteLength(); + var bkey = key.getPrivate().toArray('be', bytes); + + // Zero-extend nonce to have the same byte size as N + var nonce = msg.toArray('be', bytes); + + // Instantiate Hmac_DRBG + var drbg = new HmacDRBG({ + hash: this.hash, + entropy: bkey, + nonce: nonce, + pers: options.pers, + persEnc: options.persEnc || 'utf8' + }); + + // Number of bytes to generate + var ns1 = this.n.sub(new BN(1)); + + for (var iter = 0; true; iter++) { + var k = options.k ? + options.k(iter) : + new BN(drbg.generate(this.n.byteLength())); + k = this._truncateToN(k, true); + if (k.cmpn(1) <= 0 || k.cmp(ns1) >= 0) + continue; + + var kp = this.g.mul(k); + if (kp.isInfinity()) + continue; + + var kpX = kp.getX(); + var r = kpX.umod(this.n); + if (r.cmpn(0) === 0) + continue; + + var s = k.invm(this.n).mul(r.mul(key.getPrivate()).iadd(msg)); + s = s.umod(this.n); + if (s.cmpn(0) === 0) + continue; + + var recoveryParam = (kp.getY().isOdd() ? 1 : 0) | + (kpX.cmp(r) !== 0 ? 2 : 0); + + // Use complement of `s`, if it is > `n / 2` + if (options.canonical && s.cmp(this.nh) > 0) { + s = this.n.sub(s); + recoveryParam ^= 1; } - naf.push(z); - // Optimization, shift by word if possible - var shift = (k.cmpn(0) !== 0 && k.andln(ws - 1) === 0) ? (w + 1) : 1; - for (var i = 1; i < shift; i++) - naf.push(0); - k.iushrn(shift); + return new Signature({ r: r, s: s, recoveryParam: recoveryParam }); } +}; - return naf; -} -utils.getNAF = getNAF; - -// Represent k1, k2 in a Joint Sparse Form -function getJSF(k1, k2) { - var jsf = [ - [], - [] - ]; +EC.prototype.verify = function verify(msg, signature, key, enc) { + msg = this._truncateToN(new BN(msg, 16)); + key = this.keyFromPublic(key, enc); + signature = new Signature(signature, 'hex'); - k1 = k1.clone(); - k2 = k2.clone(); - var d1 = 0; - var d2 = 0; - while (k1.cmpn(-d1) > 0 || k2.cmpn(-d2) > 0) { + // Perform primitive values validation + var r = signature.r; + var s = signature.s; + if (r.cmpn(1) < 0 || r.cmp(this.n) >= 0) + return false; + if (s.cmpn(1) < 0 || s.cmp(this.n) >= 0) + return false; - // First phase - var m14 = (k1.andln(3) + d1) & 3; - var m24 = (k2.andln(3) + d2) & 3; - if (m14 === 3) - m14 = -1; - if (m24 === 3) - m24 = -1; - var u1; - if ((m14 & 1) === 0) { - u1 = 0; - } else { - var m8 = (k1.andln(7) + d1) & 7; - if ((m8 === 3 || m8 === 5) && m24 === 2) - u1 = -m14; - else - u1 = m14; - } - jsf[0].push(u1); + // Validate signature + var sinv = s.invm(this.n); + var u1 = sinv.mul(msg).umod(this.n); + var u2 = sinv.mul(r).umod(this.n); - var u2; - if ((m24 & 1) === 0) { - u2 = 0; - } else { - var m8 = (k2.andln(7) + d2) & 7; - if ((m8 === 3 || m8 === 5) && m14 === 2) - u2 = -m24; - else - u2 = m24; - } - jsf[1].push(u2); + if (!this.curve._maxwellTrick) { + var p = this.g.mulAdd(u1, key.getPublic(), u2); + if (p.isInfinity()) + return false; - // Second phase - if (2 * d1 === u1 + 1) - d1 = 1 - d1; - if (2 * d2 === u2 + 1) - d2 = 1 - d2; - k1.iushrn(1); - k2.iushrn(1); + return p.getX().umod(this.n).cmp(r) === 0; } - return jsf; -} -utils.getJSF = getJSF; + // NOTE: Greg Maxwell's trick, inspired by: + // https://git.io/vad3K -function cachedProperty(obj, name, computer) { - var key = '_' + name; - obj.prototype[name] = function cachedProperty() { - return this[key] !== undefined ? this[key] : - this[key] = computer.call(this); - }; -} -utils.cachedProperty = cachedProperty; + var p = this.g.jmulAdd(u1, key.getPublic(), u2); + if (p.isInfinity()) + return false; -function parseBytes(bytes) { - return typeof bytes === 'string' ? utils.toArray(bytes, 'hex') : - bytes; -} -utils.parseBytes = parseBytes; + // Compare `p.x` of Jacobian point with `r`, + // this will do `p.x == r * p.z^2` instead of multiplying `p.x` by the + // inverse of `p.z^2` + return p.eqXToP(r); +}; -function intFromLE(bytes) { - return new BN(bytes, 'hex', 'le'); -} -utils.intFromLE = intFromLE; +EC.prototype.recoverPubKey = function(msg, signature, j, enc) { + assert((3 & j) === j, 'The recovery param is more than two bits'); + signature = new Signature(signature, enc); + var n = this.n; + var e = new BN(msg); + var r = signature.r; + var s = signature.s; -},{"18":18}],85:[function(require,module,exports){ -module.exports={ - "_args": [ - [ - { - "raw": "elliptic@^6.0.0", - "scope": null, - "escapedName": "elliptic", - "name": "elliptic", - "rawSpec": "^6.0.0", - "spec": ">=6.0.0 <7.0.0", - "type": "range" - }, - "/Users/nolan/workspace/pouchdb-quick-search/node_modules/browserify-sign" - ] - ], - "_from": "elliptic@>=6.0.0 <7.0.0", - "_id": "elliptic@6.3.3", - "_inCache": true, - "_location": "/elliptic", - "_nodeVersion": "7.0.0", - "_npmOperationalInternal": { - "host": "packages-18-east.internal.npmjs.com", - "tmp": "tmp/elliptic-6.3.3.tgz_1486422837740_0.10658654430881143" - }, - "_npmUser": { - "name": "indutny", - "email": "fedor@indutny.com" - }, - "_npmVersion": "3.10.8", - "_phantomChildren": {}, - "_requested": { - "raw": "elliptic@^6.0.0", - "scope": null, - "escapedName": "elliptic", - "name": "elliptic", - "rawSpec": "^6.0.0", - "spec": ">=6.0.0 <7.0.0", - "type": "range" - }, - "_requiredBy": [ - "/browserify-sign", - "/create-ecdh" - ], - "_resolved": "https://registry.npmjs.org/elliptic/-/elliptic-6.3.3.tgz", - "_shasum": "5482d9646d54bcb89fd7d994fc9e2e9568876e3f", - "_shrinkwrap": null, - "_spec": "elliptic@^6.0.0", - "_where": "/Users/nolan/workspace/pouchdb-quick-search/node_modules/browserify-sign", - "author": { - "name": "Fedor Indutny", - "email": "fedor@indutny.com" - }, - "bugs": { - "url": "https://github.com/indutny/elliptic/issues" - }, - "dependencies": { - "bn.js": "^4.4.0", - "brorand": "^1.0.1", - "hash.js": "^1.0.0", - "inherits": "^2.0.1" - }, - "description": "EC cryptography", - "devDependencies": { - "brfs": "^1.4.3", - "coveralls": "^2.11.3", - "grunt": "^0.4.5", - "grunt-browserify": "^5.0.0", - "grunt-cli": "^1.2.0", - "grunt-contrib-connect": "^1.0.0", - "grunt-contrib-copy": "^1.0.0", - "grunt-contrib-uglify": "^1.0.1", - "grunt-mocha-istanbul": "^3.0.1", - "grunt-saucelabs": "^8.6.2", - "istanbul": "^0.4.2", - "jscs": "^2.9.0", - "jshint": "^2.6.0", - "mocha": "^2.1.0" - }, - "directories": {}, - "dist": { - "shasum": "5482d9646d54bcb89fd7d994fc9e2e9568876e3f", - "tarball": "https://registry.npmjs.org/elliptic/-/elliptic-6.3.3.tgz" - }, - "files": [ - "lib" - ], - "gitHead": "63aee8d697e9b7fac37ece24222029117a890a7e", - "homepage": "https://github.com/indutny/elliptic", - "keywords": [ - "EC", - "Elliptic", - "curve", - "Cryptography" - ], - "license": "MIT", - "main": "lib/elliptic.js", - "maintainers": [ - { - "name": "indutny", - "email": "fedor@indutny.com" + // A set LSB signifies that the y-coordinate is odd + var isYOdd = j & 1; + var isSecondKey = j >> 1; + if (r.cmp(this.curve.p.umod(this.curve.n)) >= 0 && isSecondKey) + throw new Error('Unable to find sencond key candinate'); + + // 1.1. Let x = r + jn. + if (isSecondKey) + r = this.curve.pointFromX(r.add(this.curve.n), isYOdd); + else + r = this.curve.pointFromX(r, isYOdd); + + var rInv = signature.r.invm(n); + var s1 = n.sub(e).mul(rInv).umod(n); + var s2 = s.mul(rInv).umod(n); + + // 1.6.1 Compute Q = r^-1 (sR - eG) + // Q = r^-1 (sR + -eG) + return this.g.mulAdd(s1, r, s2); +}; + +EC.prototype.getKeyRecoveryParam = function(e, signature, Q, enc) { + signature = new Signature(signature, enc); + if (signature.recoveryParam !== null) + return signature.recoveryParam; + + for (var i = 0; i < 4; i++) { + var Qprime; + try { + Qprime = this.recoverPubKey(e, signature, i); + } catch (e) { + continue; } - ], - "name": "elliptic", - "optionalDependencies": {}, - "readme": "ERROR: No README data found!", - "repository": { - "type": "git", - "url": "git+ssh://git@github.com/indutny/elliptic.git" - }, - "scripts": { - "jscs": "jscs benchmarks/*.js lib/*.js lib/**/*.js lib/**/**/*.js test/index.js", - "jshint": "jscs benchmarks/*.js lib/*.js lib/**/*.js lib/**/**/*.js test/index.js", - "lint": "npm run jscs && npm run jshint", - "test": "npm run lint && npm run unit", - "unit": "istanbul test _mocha --reporter=spec test/index.js", - "version": "grunt dist && git add dist/" - }, - "version": "6.3.3" -} -},{}],86:[function(require,module,exports){ -// Copyright Joyent, Inc. and other Node contributors. -// -// Permission is hereby granted, free of charge, to any person obtaining a -// copy of this software and associated documentation files (the -// "Software"), to deal in the Software without restriction, including -// without limitation the rights to use, copy, modify, merge, publish, -// distribute, sublicense, and/or sell copies of the Software, and to permit -// persons to whom the Software is furnished to do so, subject to the -// following conditions: -// -// The above copyright notice and this permission notice shall be included -// in all copies or substantial portions of the Software. -// -// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS -// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF -// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN -// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, -// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR -// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE -// USE OR OTHER DEALINGS IN THE SOFTWARE. + if (Qprime.eq(Q)) + return i; + } + throw new Error('Unable to find valid recovery factor'); +}; -function EventEmitter() { - this._events = this._events || {}; - this._maxListeners = this._maxListeners || undefined; +},{"105":105,"22":22,"23":23,"80":80,"82":82,"83":83,"88":88}],82:[function(require,module,exports){ +'use strict'; + +var BN = require(22); +var utils = require(88); +var assert = utils.assert; + +function KeyPair(ec, options) { + this.ec = ec; + this.priv = null; + this.pub = null; + + // KeyPair(ec, { priv: ..., pub: ... }) + if (options.priv) + this._importPrivate(options.priv, options.privEnc); + if (options.pub) + this._importPublic(options.pub, options.pubEnc); } -module.exports = EventEmitter; +module.exports = KeyPair; -// Backwards-compat with node 0.10.x -EventEmitter.EventEmitter = EventEmitter; +KeyPair.fromPublic = function fromPublic(ec, pub, enc) { + if (pub instanceof KeyPair) + return pub; -EventEmitter.prototype._events = undefined; -EventEmitter.prototype._maxListeners = undefined; + return new KeyPair(ec, { + pub: pub, + pubEnc: enc + }); +}; -// By default EventEmitters will print a warning if more than 10 listeners are -// added to it. This is a useful default which helps finding memory leaks. -EventEmitter.defaultMaxListeners = 10; +KeyPair.fromPrivate = function fromPrivate(ec, priv, enc) { + if (priv instanceof KeyPair) + return priv; -// Obviously not all Emitters should be limited to 10. This function allows -// that to be increased. Set to zero for unlimited. -EventEmitter.prototype.setMaxListeners = function(n) { - if (!isNumber(n) || n < 0 || isNaN(n)) - throw TypeError('n must be a positive number'); - this._maxListeners = n; - return this; + return new KeyPair(ec, { + priv: priv, + privEnc: enc + }); }; -EventEmitter.prototype.emit = function(type) { - var er, handler, len, args, i, listeners; +KeyPair.prototype.validate = function validate() { + var pub = this.getPublic(); - if (!this._events) - this._events = {}; + if (pub.isInfinity()) + return { result: false, reason: 'Invalid public key' }; + if (!pub.validate()) + return { result: false, reason: 'Public key is not a point' }; + if (!pub.mul(this.ec.curve.n).isInfinity()) + return { result: false, reason: 'Public key * N != O' }; - // If there is no 'error' event listener then throw. - if (type === 'error') { - if (!this._events.error || - (isObject(this._events.error) && !this._events.error.length)) { - er = arguments[1]; - if (er instanceof Error) { - throw er; // Unhandled 'error' event - } else { - // At least give some kind of context to the user - var err = new Error('Uncaught, unspecified "error" event. (' + er + ')'); - err.context = er; - throw err; - } + return { result: true, reason: null }; +}; + +KeyPair.prototype.getPublic = function getPublic(compact, enc) { + // compact is optional argument + if (typeof compact === 'string') { + enc = compact; + compact = null; + } + + if (!this.pub) + this.pub = this.ec.g.mul(this.priv); + + if (!enc) + return this.pub; + + return this.pub.encode(enc, compact); +}; + +KeyPair.prototype.getPrivate = function getPrivate(enc) { + if (enc === 'hex') + return this.priv.toString(16, 2); + else + return this.priv; +}; + +KeyPair.prototype._importPrivate = function _importPrivate(key, enc) { + this.priv = new BN(key, enc || 16); + + // Ensure that the priv won't be bigger than n, otherwise we may fail + // in fixed multiplication method + this.priv = this.priv.umod(this.ec.curve.n); +}; + +KeyPair.prototype._importPublic = function _importPublic(key, enc) { + if (key.x || key.y) { + // Montgomery points only have an `x` coordinate. + // Weierstrass/Edwards points on the other hand have both `x` and + // `y` coordinates. + if (this.ec.curve.type === 'mont') { + assert(key.x, 'Need x coordinate'); + } else if (this.ec.curve.type === 'short' || + this.ec.curve.type === 'edwards') { + assert(key.x && key.y, 'Need both x and y coordinate'); } + this.pub = this.ec.curve.point(key.x, key.y); + return; } + this.pub = this.ec.curve.decodePoint(key, enc); +}; - handler = this._events[type]; +// ECDH +KeyPair.prototype.derive = function derive(pub) { + return pub.mul(this.priv).getX(); +}; - if (isUndefined(handler)) +// ECDSA +KeyPair.prototype.sign = function sign(msg, enc, options) { + return this.ec.sign(msg, this, enc, options); +}; + +KeyPair.prototype.verify = function verify(msg, signature) { + return this.ec.verify(msg, signature, this); +}; + +KeyPair.prototype.inspect = function inspect() { + return ''; +}; + +},{"22":22,"88":88}],83:[function(require,module,exports){ +'use strict'; + +var BN = require(22); + +var utils = require(88); +var assert = utils.assert; + +function Signature(options, enc) { + if (options instanceof Signature) + return options; + + if (this._importDER(options, enc)) + return; + + assert(options.r && options.s, 'Signature without r or s'); + this.r = new BN(options.r, 16); + this.s = new BN(options.s, 16); + if (options.recoveryParam === undefined) + this.recoveryParam = null; + else + this.recoveryParam = options.recoveryParam; +} +module.exports = Signature; + +function Position() { + this.place = 0; +} + +function getLength(buf, p) { + var initial = buf[p.place++]; + if (!(initial & 0x80)) { + return initial; + } + var octetLen = initial & 0xf; + var val = 0; + for (var i = 0, off = p.place; i < octetLen; i++, off++) { + val <<= 8; + val |= buf[off]; + } + p.place = off; + return val; +} + +function rmPadding(buf) { + var i = 0; + var len = buf.length - 1; + while (!buf[i] && !(buf[i + 1] & 0x80) && i < len) { + i++; + } + if (i === 0) { + return buf; + } + return buf.slice(i); +} + +Signature.prototype._importDER = function _importDER(data, enc) { + data = utils.toArray(data, enc); + var p = new Position(); + if (data[p.place++] !== 0x30) { + return false; + } + var len = getLength(data, p); + if ((len + p.place) !== data.length) { + return false; + } + if (data[p.place++] !== 0x02) { + return false; + } + var rlen = getLength(data, p); + var r = data.slice(p.place, rlen + p.place); + p.place += rlen; + if (data[p.place++] !== 0x02) { + return false; + } + var slen = getLength(data, p); + if (data.length !== slen + p.place) { return false; + } + var s = data.slice(p.place, slen + p.place); + if (r[0] === 0 && (r[1] & 0x80)) { + r = r.slice(1); + } + if (s[0] === 0 && (s[1] & 0x80)) { + s = s.slice(1); + } - if (isFunction(handler)) { - switch (arguments.length) { - // fast cases - case 1: - handler.call(this); - break; - case 2: - handler.call(this, arguments[1]); - break; - case 3: - handler.call(this, arguments[1], arguments[2]); - break; - // slower - default: - args = Array.prototype.slice.call(arguments, 1); - handler.apply(this, args); - } - } else if (isObject(handler)) { - args = Array.prototype.slice.call(arguments, 1); - listeners = handler.slice(); - len = listeners.length; - for (i = 0; i < len; i++) - listeners[i].apply(this, args); + this.r = new BN(r); + this.s = new BN(s); + this.recoveryParam = null; + + return true; +}; + +function constructLength(arr, len) { + if (len < 0x80) { + arr.push(len); + return; + } + var octets = 1 + (Math.log(len) / Math.LN2 >>> 3); + arr.push(octets | 0x80); + while (--octets) { + arr.push((len >>> (octets << 3)) & 0xff); } + arr.push(len); +} - return true; +Signature.prototype.toDER = function toDER(enc) { + var r = this.r.toArray(); + var s = this.s.toArray(); + + // Pad values + if (r[0] & 0x80) + r = [ 0 ].concat(r); + // Pad values + if (s[0] & 0x80) + s = [ 0 ].concat(s); + + r = rmPadding(r); + s = rmPadding(s); + + while (!s[0] && !(s[1] & 0x80)) { + s = s.slice(1); + } + var arr = [ 0x02 ]; + constructLength(arr, r.length); + arr = arr.concat(r); + arr.push(0x02); + constructLength(arr, s.length); + var backHalf = arr.concat(s); + var res = [ 0x30 ]; + constructLength(res, backHalf.length); + res = res.concat(backHalf); + return utils.encode(res, enc); }; -EventEmitter.prototype.addListener = function(type, listener) { - var m; +},{"22":22,"88":88}],84:[function(require,module,exports){ +'use strict'; - if (!isFunction(listener)) - throw TypeError('listener must be a function'); +var hash = require(93); +var curves = require(80); +var utils = require(88); +var assert = utils.assert; +var parseBytes = utils.parseBytes; +var KeyPair = require(85); +var Signature = require(86); - if (!this._events) - this._events = {}; +function EDDSA(curve) { + assert(curve === 'ed25519', 'only tested with ed25519 so far'); - // To avoid recursion in the case that type === "newListener"! Before - // adding it to the listeners, first emit "newListener". - if (this._events.newListener) - this.emit('newListener', type, - isFunction(listener.listener) ? - listener.listener : listener); + if (!(this instanceof EDDSA)) + return new EDDSA(curve); - if (!this._events[type]) - // Optimize the case of one listener. Don't need the extra array object. - this._events[type] = listener; - else if (isObject(this._events[type])) - // If we've already got an array, just append. - this._events[type].push(listener); - else - // Adding the second element, need to change to array. - this._events[type] = [this._events[type], listener]; + var curve = curves[curve].curve; + this.curve = curve; + this.g = curve.g; + this.g.precompute(curve.n.bitLength() + 1); - // Check for listener leak - if (isObject(this._events[type]) && !this._events[type].warned) { - if (!isUndefined(this._maxListeners)) { - m = this._maxListeners; - } else { - m = EventEmitter.defaultMaxListeners; - } + this.pointClass = curve.point().constructor; + this.encodingLength = Math.ceil(curve.n.bitLength() / 8); + this.hash = hash.sha512; +} - if (m && m > 0 && this._events[type].length > m) { - this._events[type].warned = true; - console.error('(node) warning: possible EventEmitter memory ' + - 'leak detected. %d listeners added. ' + - 'Use emitter.setMaxListeners() to increase limit.', - this._events[type].length); - if (typeof console.trace === 'function') { - // not supported in IE 10 - console.trace(); - } - } - } +module.exports = EDDSA; - return this; +/** +* @param {Array|String} message - message bytes +* @param {Array|String|KeyPair} secret - secret bytes or a keypair +* @returns {Signature} - signature +*/ +EDDSA.prototype.sign = function sign(message, secret) { + message = parseBytes(message); + var key = this.keyFromSecret(secret); + var r = this.hashInt(key.messagePrefix(), message); + var R = this.g.mul(r); + var Rencoded = this.encodePoint(R); + var s_ = this.hashInt(Rencoded, key.pubBytes(), message) + .mul(key.priv()); + var S = r.add(s_).umod(this.curve.n); + return this.makeSignature({ R: R, S: S, Rencoded: Rencoded }); }; -EventEmitter.prototype.on = EventEmitter.prototype.addListener; +/** +* @param {Array} message - message bytes +* @param {Array|String|Signature} sig - sig bytes +* @param {Array|String|Point|KeyPair} pub - public key +* @returns {Boolean} - true if public key matches sig of message +*/ +EDDSA.prototype.verify = function verify(message, sig, pub) { + message = parseBytes(message); + sig = this.makeSignature(sig); + var key = this.keyFromPublic(pub); + var h = this.hashInt(sig.Rencoded(), key.pubBytes(), message); + var SG = this.g.mul(sig.S()); + var RplusAh = sig.R().add(key.pub().mul(h)); + return RplusAh.eq(SG); +}; -EventEmitter.prototype.once = function(type, listener) { - if (!isFunction(listener)) - throw TypeError('listener must be a function'); +EDDSA.prototype.hashInt = function hashInt() { + var hash = this.hash(); + for (var i = 0; i < arguments.length; i++) + hash.update(arguments[i]); + return utils.intFromLE(hash.digest()).umod(this.curve.n); +}; - var fired = false; +EDDSA.prototype.keyFromPublic = function keyFromPublic(pub) { + return KeyPair.fromPublic(this, pub); +}; - function g() { - this.removeListener(type, g); +EDDSA.prototype.keyFromSecret = function keyFromSecret(secret) { + return KeyPair.fromSecret(this, secret); +}; - if (!fired) { - fired = true; - listener.apply(this, arguments); - } - } +EDDSA.prototype.makeSignature = function makeSignature(sig) { + if (sig instanceof Signature) + return sig; + return new Signature(this, sig); +}; - g.listener = listener; - this.on(type, g); +/** +* * https://tools.ietf.org/html/draft-josefsson-eddsa-ed25519-03#section-5.2 +* +* EDDSA defines methods for encoding and decoding points and integers. These are +* helper convenience methods, that pass along to utility functions implied +* parameters. +* +*/ +EDDSA.prototype.encodePoint = function encodePoint(point) { + var enc = point.getY().toArray('le', this.encodingLength); + enc[this.encodingLength - 1] |= point.getX().isOdd() ? 0x80 : 0; + return enc; +}; - return this; +EDDSA.prototype.decodePoint = function decodePoint(bytes) { + bytes = utils.parseBytes(bytes); + + var lastIx = bytes.length - 1; + var normed = bytes.slice(0, lastIx).concat(bytes[lastIx] & ~0x80); + var xIsOdd = (bytes[lastIx] & 0x80) !== 0; + + var y = utils.intFromLE(normed); + return this.curve.pointFromY(y, xIsOdd); }; -// emits a 'removeListener' event iff the listener was removed -EventEmitter.prototype.removeListener = function(type, listener) { - var list, position, length, i; +EDDSA.prototype.encodeInt = function encodeInt(num) { + return num.toArray('le', this.encodingLength); +}; - if (!isFunction(listener)) - throw TypeError('listener must be a function'); +EDDSA.prototype.decodeInt = function decodeInt(bytes) { + return utils.intFromLE(bytes); +}; - if (!this._events || !this._events[type]) - return this; +EDDSA.prototype.isPoint = function isPoint(val) { + return val instanceof this.pointClass; +}; - list = this._events[type]; - length = list.length; - position = -1; +},{"80":80,"85":85,"86":86,"88":88,"93":93}],85:[function(require,module,exports){ +'use strict'; - if (list === listener || - (isFunction(list.listener) && list.listener === listener)) { - delete this._events[type]; - if (this._events.removeListener) - this.emit('removeListener', type, listener); +var utils = require(88); +var assert = utils.assert; +var parseBytes = utils.parseBytes; +var cachedProperty = utils.cachedProperty; - } else if (isObject(list)) { - for (i = length; i-- > 0;) { - if (list[i] === listener || - (list[i].listener && list[i].listener === listener)) { - position = i; - break; - } - } +/** +* @param {EDDSA} eddsa - instance +* @param {Object} params - public/private key parameters +* +* @param {Array} [params.secret] - secret seed bytes +* @param {Point} [params.pub] - public key point (aka `A` in eddsa terms) +* @param {Array} [params.pub] - public key point encoded as bytes +* +*/ +function KeyPair(eddsa, params) { + this.eddsa = eddsa; + this._secret = parseBytes(params.secret); + if (eddsa.isPoint(params.pub)) + this._pub = params.pub; + else + this._pubBytes = parseBytes(params.pub); +} - if (position < 0) - return this; +KeyPair.fromPublic = function fromPublic(eddsa, pub) { + if (pub instanceof KeyPair) + return pub; + return new KeyPair(eddsa, { pub: pub }); +}; - if (list.length === 1) { - list.length = 0; - delete this._events[type]; - } else { - list.splice(position, 1); - } +KeyPair.fromSecret = function fromSecret(eddsa, secret) { + if (secret instanceof KeyPair) + return secret; + return new KeyPair(eddsa, { secret: secret }); +}; - if (this._events.removeListener) - this.emit('removeListener', type, listener); - } +KeyPair.prototype.secret = function secret() { + return this._secret; +}; + +cachedProperty(KeyPair, 'pubBytes', function pubBytes() { + return this.eddsa.encodePoint(this.pub()); +}); - return this; -}; +cachedProperty(KeyPair, 'pub', function pub() { + if (this._pubBytes) + return this.eddsa.decodePoint(this._pubBytes); + return this.eddsa.g.mul(this.priv()); +}); -EventEmitter.prototype.removeAllListeners = function(type) { - var key, listeners; +cachedProperty(KeyPair, 'privBytes', function privBytes() { + var eddsa = this.eddsa; + var hash = this.hash(); + var lastIx = eddsa.encodingLength - 1; - if (!this._events) - return this; + var a = hash.slice(0, eddsa.encodingLength); + a[0] &= 248; + a[lastIx] &= 127; + a[lastIx] |= 64; - // not listening for removeListener, no need to emit - if (!this._events.removeListener) { - if (arguments.length === 0) - this._events = {}; - else if (this._events[type]) - delete this._events[type]; - return this; - } + return a; +}); - // emit removeListener for all listeners on all events - if (arguments.length === 0) { - for (key in this._events) { - if (key === 'removeListener') continue; - this.removeAllListeners(key); - } - this.removeAllListeners('removeListener'); - this._events = {}; - return this; - } +cachedProperty(KeyPair, 'priv', function priv() { + return this.eddsa.decodeInt(this.privBytes()); +}); - listeners = this._events[type]; +cachedProperty(KeyPair, 'hash', function hash() { + return this.eddsa.hash().update(this.secret()).digest(); +}); - if (isFunction(listeners)) { - this.removeListener(type, listeners); - } else if (listeners) { - // LIFO order - while (listeners.length) - this.removeListener(type, listeners[listeners.length - 1]); - } - delete this._events[type]; +cachedProperty(KeyPair, 'messagePrefix', function messagePrefix() { + return this.hash().slice(this.eddsa.encodingLength); +}); - return this; +KeyPair.prototype.sign = function sign(message) { + assert(this._secret, 'KeyPair can only verify'); + return this.eddsa.sign(message, this); }; -EventEmitter.prototype.listeners = function(type) { - var ret; - if (!this._events || !this._events[type]) - ret = []; - else if (isFunction(this._events[type])) - ret = [this._events[type]]; - else - ret = this._events[type].slice(); - return ret; +KeyPair.prototype.verify = function verify(message, sig) { + return this.eddsa.verify(message, sig, this); }; -EventEmitter.prototype.listenerCount = function(type) { - if (this._events) { - var evlistener = this._events[type]; - - if (isFunction(evlistener)) - return 1; - else if (evlistener) - return evlistener.length; - } - return 0; +KeyPair.prototype.getSecret = function getSecret(enc) { + assert(this._secret, 'KeyPair is public only'); + return utils.encode(this.secret(), enc); }; -EventEmitter.listenerCount = function(emitter, type) { - return emitter.listenerCount(type); +KeyPair.prototype.getPublic = function getPublic(enc) { + return utils.encode(this.pubBytes(), enc); }; -function isFunction(arg) { - return typeof arg === 'function'; -} - -function isNumber(arg) { - return typeof arg === 'number'; -} - -function isObject(arg) { - return typeof arg === 'object' && arg !== null; -} +module.exports = KeyPair; -function isUndefined(arg) { - return arg === void 0; -} +},{"88":88}],86:[function(require,module,exports){ +'use strict'; -},{}],87:[function(require,module,exports){ -(function (Buffer){ -var md5 = require(54) -module.exports = EVP_BytesToKey -function EVP_BytesToKey (password, salt, keyLen, ivLen) { - if (!Buffer.isBuffer(password)) { - password = new Buffer(password, 'binary') - } - if (salt && !Buffer.isBuffer(salt)) { - salt = new Buffer(salt, 'binary') - } - keyLen = keyLen / 8 - ivLen = ivLen || 0 - var ki = 0 - var ii = 0 - var key = new Buffer(keyLen) - var iv = new Buffer(ivLen) - var addmd = 0 - var md_buf - var i - var bufs = [] - while (true) { - if (addmd++ > 0) { - bufs.push(md_buf) - } - bufs.push(password) - if (salt) { - bufs.push(salt) - } - md_buf = md5(Buffer.concat(bufs)) - bufs = [] - i = 0 - if (keyLen > 0) { - while (true) { - if (keyLen === 0) { - break - } - if (i === md_buf.length) { - break - } - key[ki++] = md_buf[i] - keyLen-- - i++ - } - } - if (ivLen > 0 && i !== md_buf.length) { - while (true) { - if (ivLen === 0) { - break - } - if (i === md_buf.length) { - break - } - iv[ii++] = md_buf[i] - ivLen-- - i++ - } - } - if (keyLen === 0 && ivLen === 0) { - break - } - } - for (i = 0; i < md_buf.length; i++) { - md_buf[i] = 0 - } - return { - key: key, - iv: iv - } -} +var BN = require(22); +var utils = require(88); +var assert = utils.assert; +var cachedProperty = utils.cachedProperty; +var parseBytes = utils.parseBytes; -}).call(this,require(47).Buffer) -},{"47":47,"54":54}],88:[function(require,module,exports){ -var hash = exports; +/** +* @param {EDDSA} eddsa - eddsa instance +* @param {Array|Object} sig - +* @param {Array|Point} [sig.R] - R point as Point or bytes +* @param {Array|bn} [sig.S] - S scalar as bn or bytes +* @param {Array} [sig.Rencoded] - R point encoded +* @param {Array} [sig.Sencoded] - S scalar encoded +*/ +function Signature(eddsa, sig) { + this.eddsa = eddsa; -hash.utils = require(93); -hash.common = require(89); -hash.sha = require(92); -hash.ripemd = require(91); -hash.hmac = require(90); + if (typeof sig !== 'object') + sig = parseBytes(sig); -// Proxy hash functions to the main object -hash.sha1 = hash.sha.sha1; -hash.sha256 = hash.sha.sha256; -hash.sha224 = hash.sha.sha224; -hash.sha384 = hash.sha.sha384; -hash.sha512 = hash.sha.sha512; -hash.ripemd160 = hash.ripemd.ripemd160; + if (Array.isArray(sig)) { + sig = { + R: sig.slice(0, eddsa.encodingLength), + S: sig.slice(eddsa.encodingLength) + }; + } -},{"89":89,"90":90,"91":91,"92":92,"93":93}],89:[function(require,module,exports){ -var hash = require(88); -var utils = hash.utils; -var assert = utils.assert; + assert(sig.R && sig.S, 'Signature without R or S'); -function BlockHash() { - this.pending = null; - this.pendingTotal = 0; - this.blockSize = this.constructor.blockSize; - this.outSize = this.constructor.outSize; - this.hmacStrength = this.constructor.hmacStrength; - this.padLength = this.constructor.padLength / 8; - this.endian = 'big'; + if (eddsa.isPoint(sig.R)) + this._R = sig.R; + if (sig.S instanceof BN) + this._S = sig.S; - this._delta8 = this.blockSize / 8; - this._delta32 = this.blockSize / 32; + this._Rencoded = Array.isArray(sig.R) ? sig.R : sig.Rencoded; + this._Sencoded = Array.isArray(sig.S) ? sig.S : sig.Sencoded; } -exports.BlockHash = BlockHash; -BlockHash.prototype.update = function update(msg, enc) { - // Convert message to array, pad it, and join into 32bit blocks - msg = utils.toArray(msg, enc); - if (!this.pending) - this.pending = msg; - else - this.pending = this.pending.concat(msg); - this.pendingTotal += msg.length; +cachedProperty(Signature, 'S', function S() { + return this.eddsa.decodeInt(this.Sencoded()); +}); - // Enough data, try updating - if (this.pending.length >= this._delta8) { - msg = this.pending; +cachedProperty(Signature, 'R', function R() { + return this.eddsa.decodePoint(this.Rencoded()); +}); - // Process pending data in blocks - var r = msg.length % this._delta8; - this.pending = msg.slice(msg.length - r, msg.length); - if (this.pending.length === 0) - this.pending = null; +cachedProperty(Signature, 'Rencoded', function Rencoded() { + return this.eddsa.encodePoint(this.R()); +}); - msg = utils.join32(msg, 0, msg.length - r, this.endian); - for (var i = 0; i < msg.length; i += this._delta32) - this._update(msg, i, i + this._delta32); - } +cachedProperty(Signature, 'Sencoded', function Sencoded() { + return this.eddsa.encodeInt(this.S()); +}); - return this; +Signature.prototype.toBytes = function toBytes() { + return this.Rencoded().concat(this.Sencoded()); }; -BlockHash.prototype.digest = function digest(enc) { - this.update(this._pad()); - assert(this.pending === null); - - return this._digest(enc); +Signature.prototype.toHex = function toHex() { + return utils.encode(this.toBytes(), 'hex').toUpperCase(); }; -BlockHash.prototype._pad = function pad() { - var len = this.pendingTotal; - var bytes = this._delta8; - var k = bytes - ((len + this.padLength) % bytes); - var res = new Array(k + this.padLength); - res[0] = 0x80; - for (var i = 1; i < k; i++) - res[i] = 0; - - // Append length - len <<= 3; - if (this.endian === 'big') { - for (var t = 8; t < this.padLength; t++) - res[i++] = 0; - - res[i++] = 0; - res[i++] = 0; - res[i++] = 0; - res[i++] = 0; - res[i++] = (len >>> 24) & 0xff; - res[i++] = (len >>> 16) & 0xff; - res[i++] = (len >>> 8) & 0xff; - res[i++] = len & 0xff; - } else { - res[i++] = len & 0xff; - res[i++] = (len >>> 8) & 0xff; - res[i++] = (len >>> 16) & 0xff; - res[i++] = (len >>> 24) & 0xff; - res[i++] = 0; - res[i++] = 0; - res[i++] = 0; - res[i++] = 0; +module.exports = Signature; - for (var t = 8; t < this.padLength; t++) - res[i++] = 0; 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new Hmac(hash, key, enc); - this.Hash = hash; - this.blockSize = hash.blockSize / 8; - this.outSize = hash.outSize / 8; - this.inner = null; - this.outer = null; +utils.assert = minAssert; +utils.toArray = minUtils.toArray; +utils.zero2 = minUtils.zero2; +utils.toHex = minUtils.toHex; +utils.encode = minUtils.encode; - this._init(utils.toArray(key, enc)); +// Represent num in a w-NAF form +function getNAF(num, w) { + var naf = []; + var ws = 1 << (w + 1); + var k = num.clone(); + while (k.cmpn(1) >= 0) { + var z; + if (k.isOdd()) { + var mod = k.andln(ws - 1); + if (mod > (ws >> 1) - 1) + z = (ws >> 1) - mod; + else + z = mod; + k.isubn(z); + } else { + z = 0; + } + naf.push(z); + + // Optimization, shift by word if possible + var shift = (k.cmpn(0) !== 0 && k.andln(ws - 1) === 0) ? (w + 1) : 1; + for (var i = 1; i < shift; i++) + naf.push(0); + k.iushrn(shift); + } + + return naf; } -module.exports = Hmac; +utils.getNAF = getNAF; -Hmac.prototype._init = function init(key) { - // Shorten key, if needed - if (key.length > this.blockSize) - key = new this.Hash().update(key).digest(); - assert(key.length <= this.blockSize); +// Represent k1, k2 in a Joint Sparse Form +function getJSF(k1, k2) { + var jsf = [ + [], + [] + ]; - // Add padding to key - for (var i = key.length; i < this.blockSize; i++) - key.push(0); + k1 = k1.clone(); + k2 = k2.clone(); + var d1 = 0; + var d2 = 0; + while (k1.cmpn(-d1) > 0 || k2.cmpn(-d2) > 0) { - for (var i = 0; i < key.length; i++) - key[i] ^= 0x36; - this.inner = new this.Hash().update(key); + // First phase + var m14 = (k1.andln(3) + d1) & 3; + var m24 = (k2.andln(3) + d2) & 3; + if (m14 === 3) + m14 = -1; + if (m24 === 3) + m24 = -1; + var u1; + if ((m14 & 1) === 0) { + u1 = 0; + } else { + var m8 = (k1.andln(7) + d1) & 7; + if ((m8 === 3 || m8 === 5) && m24 === 2) + u1 = -m14; + else + u1 = m14; + } + jsf[0].push(u1); - // 0x36 ^ 0x5c = 0x6a - for (var i = 0; i < key.length; i++) - key[i] ^= 0x6a; - this.outer = new this.Hash().update(key); -}; + var u2; + if ((m24 & 1) === 0) { + u2 = 0; + } else { + var m8 = (k2.andln(7) + d2) & 7; + if ((m8 === 3 || m8 === 5) && m14 === 2) + u2 = -m24; + else + u2 = m24; + } + jsf[1].push(u2); -Hmac.prototype.update = function update(msg, enc) { - this.inner.update(msg, enc); - return this; -}; + // Second phase + if (2 * d1 === u1 + 1) + d1 = 1 - d1; + if (2 * d2 === u2 + 1) + d2 = 1 - d2; + k1.iushrn(1); + k2.iushrn(1); + } -Hmac.prototype.digest = function digest(enc) { - this.outer.update(this.inner.digest()); - return this.outer.digest(enc); -}; + return jsf; +} +utils.getJSF = getJSF; -},{"88":88}],91:[function(require,module,exports){ -var hash = require(88); -var utils = hash.utils; +function cachedProperty(obj, name, computer) { + var key = '_' + name; + obj.prototype[name] = function cachedProperty() { + return this[key] !== undefined ? this[key] : + this[key] = computer.call(this); + }; +} +utils.cachedProperty = cachedProperty; -var rotl32 = utils.rotl32; -var sum32 = utils.sum32; -var sum32_3 = utils.sum32_3; -var sum32_4 = utils.sum32_4; -var BlockHash = hash.common.BlockHash; +function parseBytes(bytes) { + return typeof bytes === 'string' ? utils.toArray(bytes, 'hex') : + bytes; +} +utils.parseBytes = parseBytes; -function RIPEMD160() { - if (!(this instanceof RIPEMD160)) - return new RIPEMD160(); +function intFromLE(bytes) { + return new BN(bytes, 'hex', 'le'); +} +utils.intFromLE = intFromLE; - BlockHash.call(this); - this.h = [ 0x67452301, 0xefcdab89, 0x98badcfe, 0x10325476, 0xc3d2e1f0 ]; - this.endian = 'little'; +},{"119":119,"120":120,"22":22}],89:[function(require,module,exports){ +module.exports={ + "_from": "elliptic@^6.0.0", + "_id": "elliptic@6.5.1", + "_inBundle": false, + "_integrity": "sha512-xvJINNLbTeWQjrl6X+7eQCrIy/YPv5XCpKW6kB5mKvtnGILoLDcySuwomfdzt0BMdLNVnuRNTuzKNHj0bva1Cg==", + "_location": "/elliptic", + "_phantomChildren": {}, + "_requested": { + "type": "range", + "registry": true, + "raw": "elliptic@^6.0.0", + "name": "elliptic", + "escapedName": "elliptic", + "rawSpec": "^6.0.0", + "saveSpec": null, + "fetchSpec": "^6.0.0" + }, + "_requiredBy": [ + "/browserify-sign", + "/create-ecdh" + ], + "_resolved": "https://registry.npmjs.org/elliptic/-/elliptic-6.5.1.tgz", + "_shasum": "c380f5f909bf1b9b4428d028cd18d3b0efd6b52b", + "_spec": "elliptic@^6.0.0", + "_where": "/home/pawel/workspace/pouchdb-quick-search/node_modules/browserify-sign", + "author": { + "name": "Fedor Indutny", + "email": "fedor@indutny.com" + }, + "bugs": { + "url": "https://github.com/indutny/elliptic/issues" + }, + "bundleDependencies": false, + "dependencies": { + "bn.js": "^4.4.0", + "brorand": "^1.0.1", + "hash.js": "^1.0.0", + "hmac-drbg": "^1.0.0", + "inherits": "^2.0.1", + "minimalistic-assert": "^1.0.0", + "minimalistic-crypto-utils": "^1.0.0" + }, + "deprecated": false, + "description": "EC cryptography", + "devDependencies": { + "brfs": "^1.4.3", + "coveralls": "^3.0.4", + "grunt": "^1.0.4", + "grunt-browserify": "^5.0.0", + "grunt-cli": "^1.2.0", + "grunt-contrib-connect": "^1.0.0", + "grunt-contrib-copy": "^1.0.0", + "grunt-contrib-uglify": "^1.0.1", + "grunt-mocha-istanbul": "^3.0.1", + "grunt-saucelabs": "^9.0.1", + "istanbul": "^0.4.2", + "jscs": "^3.0.7", + "jshint": "^2.6.0", + "mocha": "^6.1.4" + }, + "files": [ + "lib" + ], + "homepage": "https://github.com/indutny/elliptic", + "keywords": [ + "EC", + "Elliptic", + "curve", + "Cryptography" + ], + "license": "MIT", + "main": "lib/elliptic.js", + "name": "elliptic", + "repository": { + "type": "git", + "url": "git+ssh://git@github.com/indutny/elliptic.git" + }, + "scripts": { + "jscs": "jscs benchmarks/*.js lib/*.js lib/**/*.js lib/**/**/*.js test/index.js", + "jshint": "jscs benchmarks/*.js lib/*.js lib/**/*.js lib/**/**/*.js test/index.js", + "lint": "npm run jscs && npm run jshint", + "test": "npm run lint && npm run unit", + "unit": "istanbul test _mocha --reporter=spec test/index.js", + "version": "grunt dist && git add dist/" + }, + "version": "6.5.1" } -utils.inherits(RIPEMD160, BlockHash); -exports.ripemd160 = RIPEMD160; -RIPEMD160.blockSize = 512; -RIPEMD160.outSize = 160; -RIPEMD160.hmacStrength = 192; -RIPEMD160.padLength = 64; +},{}],90:[function(require,module,exports){ +// Copyright Joyent, Inc. and other Node contributors. +// +// Permission is hereby granted, free of charge, to any person obtaining a +// copy of this software and associated documentation files (the +// "Software"), to deal in the Software without restriction, including +// without limitation the rights to use, copy, modify, merge, publish, +// distribute, sublicense, and/or sell copies of the Software, and to permit +// persons to whom the Software is furnished to do so, subject to the +// following conditions: +// +// The above copyright notice and this permission notice shall be included +// in all copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS +// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN +// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, +// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR +// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE +// USE OR OTHER DEALINGS IN THE SOFTWARE. + +function EventEmitter() { + this._events = this._events || {}; + this._maxListeners = this._maxListeners || undefined; +} +module.exports = EventEmitter; + +// Backwards-compat with node 0.10.x +EventEmitter.EventEmitter = EventEmitter; + +EventEmitter.prototype._events = undefined; +EventEmitter.prototype._maxListeners = undefined; -RIPEMD160.prototype._update = function update(msg, start) { - var A = this.h[0]; - var B = this.h[1]; - var C = this.h[2]; - var D = this.h[3]; - var E = this.h[4]; - var Ah = A; - var Bh = B; - var Ch = C; - var Dh = D; - var Eh = E; - for (var j = 0; j < 80; j++) { - var T = sum32( - rotl32( - sum32_4(A, f(j, B, C, D), msg[r[j] + start], K(j)), - s[j]), - E); - A = E; - E = D; - D = rotl32(C, 10); - C = B; - B = T; - T = sum32( - rotl32( - sum32_4(Ah, f(79 - j, Bh, Ch, Dh), msg[rh[j] + start], Kh(j)), - sh[j]), - Eh); - Ah = Eh; - Eh = Dh; - Dh = rotl32(Ch, 10); - Ch = Bh; - Bh = T; - } - T = sum32_3(this.h[1], C, Dh); - this.h[1] = sum32_3(this.h[2], D, Eh); - this.h[2] = sum32_3(this.h[3], E, Ah); - this.h[3] = sum32_3(this.h[4], A, Bh); - this.h[4] = sum32_3(this.h[0], B, Ch); - this.h[0] = T; -}; +// By default EventEmitters will print a warning if more than 10 listeners are +// added to it. This is a useful default which helps finding memory leaks. +EventEmitter.defaultMaxListeners = 10; -RIPEMD160.prototype._digest = function digest(enc) { - if (enc === 'hex') - return utils.toHex32(this.h, 'little'); - else - return utils.split32(this.h, 'little'); +// Obviously not all Emitters should be limited to 10. This function allows +// that to be increased. Set to zero for unlimited. +EventEmitter.prototype.setMaxListeners = function(n) { + if (!isNumber(n) || n < 0 || isNaN(n)) + throw TypeError('n must be a positive number'); + this._maxListeners = n; + return this; }; -function f(j, x, y, z) { - if (j <= 15) - return x ^ y ^ z; - else if (j <= 31) - return (x & y) | ((~x) & z); - else if (j <= 47) - return (x | (~y)) ^ z; - else if (j <= 63) - return (x & z) | (y & (~z)); - else - return x ^ (y | (~z)); -} +EventEmitter.prototype.emit = function(type) { + var er, handler, len, args, i, listeners; -function K(j) { - if (j <= 15) - return 0x00000000; - else if (j <= 31) - return 0x5a827999; - else if (j <= 47) - return 0x6ed9eba1; - else if (j <= 63) - return 0x8f1bbcdc; - else - return 0xa953fd4e; -} + if (!this._events) + this._events = {}; -function Kh(j) { - if (j <= 15) - return 0x50a28be6; - else if (j <= 31) - return 0x5c4dd124; - else if (j <= 47) - return 0x6d703ef3; - else if (j <= 63) - return 0x7a6d76e9; - else - return 0x00000000; -} + // If there is no 'error' event listener then throw. + if (type === 'error') { + if (!this._events.error || + (isObject(this._events.error) && !this._events.error.length)) { + er = arguments[1]; + if (er instanceof Error) { + throw er; // Unhandled 'error' event + } else { + // At least give some kind of context to the user + var err = new Error('Uncaught, unspecified "error" event. (' + er + ')'); + err.context = er; + throw err; + } + } + } -var r = [ - 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, - 7, 4, 13, 1, 10, 6, 15, 3, 12, 0, 9, 5, 2, 14, 11, 8, - 3, 10, 14, 4, 9, 15, 8, 1, 2, 7, 0, 6, 13, 11, 5, 12, - 1, 9, 11, 10, 0, 8, 12, 4, 13, 3, 7, 15, 14, 5, 6, 2, - 4, 0, 5, 9, 7, 12, 2, 10, 14, 1, 3, 8, 11, 6, 15, 13 -]; + handler = this._events[type]; -var rh = [ - 5, 14, 7, 0, 9, 2, 11, 4, 13, 6, 15, 8, 1, 10, 3, 12, - 6, 11, 3, 7, 0, 13, 5, 10, 14, 15, 8, 12, 4, 9, 1, 2, - 15, 5, 1, 3, 7, 14, 6, 9, 11, 8, 12, 2, 10, 0, 4, 13, - 8, 6, 4, 1, 3, 11, 15, 0, 5, 12, 2, 13, 9, 7, 10, 14, - 12, 15, 10, 4, 1, 5, 8, 7, 6, 2, 13, 14, 0, 3, 9, 11 -]; + if (isUndefined(handler)) + return false; -var s = [ - 11, 14, 15, 12, 5, 8, 7, 9, 11, 13, 14, 15, 6, 7, 9, 8, - 7, 6, 8, 13, 11, 9, 7, 15, 7, 12, 15, 9, 11, 7, 13, 12, - 11, 13, 6, 7, 14, 9, 13, 15, 14, 8, 13, 6, 5, 12, 7, 5, - 11, 12, 14, 15, 14, 15, 9, 8, 9, 14, 5, 6, 8, 6, 5, 12, - 9, 15, 5, 11, 6, 8, 13, 12, 5, 12, 13, 14, 11, 8, 5, 6 -]; + if (isFunction(handler)) { + switch (arguments.length) { + // fast cases + case 1: + handler.call(this); + break; + case 2: + handler.call(this, arguments[1]); + break; + case 3: + handler.call(this, arguments[1], arguments[2]); + break; + // slower + default: + args = Array.prototype.slice.call(arguments, 1); + handler.apply(this, args); + } + } else if (isObject(handler)) { + args = Array.prototype.slice.call(arguments, 1); + listeners = handler.slice(); + len = listeners.length; + for (i = 0; i < len; i++) + listeners[i].apply(this, args); + } -var sh = [ - 8, 9, 9, 11, 13, 15, 15, 5, 7, 7, 8, 11, 14, 14, 12, 6, - 9, 13, 15, 7, 12, 8, 9, 11, 7, 7, 12, 7, 6, 15, 13, 11, - 9, 7, 15, 11, 8, 6, 6, 14, 12, 13, 5, 14, 13, 13, 7, 5, - 15, 5, 8, 11, 14, 14, 6, 14, 6, 9, 12, 9, 12, 5, 15, 8, - 8, 5, 12, 9, 12, 5, 14, 6, 8, 13, 6, 5, 15, 13, 11, 11 -]; + return true; +}; -},{"88":88}],92:[function(require,module,exports){ -var hash = require(88); -var utils = hash.utils; -var assert = utils.assert; +EventEmitter.prototype.addListener = function(type, listener) { + var m; -var rotr32 = utils.rotr32; -var rotl32 = utils.rotl32; -var sum32 = utils.sum32; -var sum32_4 = utils.sum32_4; -var sum32_5 = utils.sum32_5; -var rotr64_hi = utils.rotr64_hi; -var rotr64_lo = utils.rotr64_lo; -var shr64_hi = utils.shr64_hi; -var shr64_lo = utils.shr64_lo; -var sum64 = utils.sum64; -var sum64_hi = utils.sum64_hi; -var sum64_lo = utils.sum64_lo; -var sum64_4_hi = utils.sum64_4_hi; -var sum64_4_lo = utils.sum64_4_lo; -var sum64_5_hi = utils.sum64_5_hi; -var sum64_5_lo = utils.sum64_5_lo; -var BlockHash = hash.common.BlockHash; + if (!isFunction(listener)) + throw TypeError('listener must be a function'); -var sha256_K = [ - 0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5, - 0x3956c25b, 0x59f111f1, 0x923f82a4, 0xab1c5ed5, - 0xd807aa98, 0x12835b01, 0x243185be, 0x550c7dc3, - 0x72be5d74, 0x80deb1fe, 0x9bdc06a7, 0xc19bf174, - 0xe49b69c1, 0xefbe4786, 0x0fc19dc6, 0x240ca1cc, - 0x2de92c6f, 0x4a7484aa, 0x5cb0a9dc, 0x76f988da, - 0x983e5152, 0xa831c66d, 0xb00327c8, 0xbf597fc7, - 0xc6e00bf3, 0xd5a79147, 0x06ca6351, 0x14292967, - 0x27b70a85, 0x2e1b2138, 0x4d2c6dfc, 0x53380d13, - 0x650a7354, 0x766a0abb, 0x81c2c92e, 0x92722c85, - 0xa2bfe8a1, 0xa81a664b, 0xc24b8b70, 0xc76c51a3, - 0xd192e819, 0xd6990624, 0xf40e3585, 0x106aa070, - 0x19a4c116, 0x1e376c08, 0x2748774c, 0x34b0bcb5, - 0x391c0cb3, 0x4ed8aa4a, 0x5b9cca4f, 0x682e6ff3, - 0x748f82ee, 0x78a5636f, 0x84c87814, 0x8cc70208, - 0x90befffa, 0xa4506ceb, 0xbef9a3f7, 0xc67178f2 -]; + if (!this._events) + this._events = {}; -var sha512_K = [ - 0x428a2f98, 0xd728ae22, 0x71374491, 0x23ef65cd, - 0xb5c0fbcf, 0xec4d3b2f, 0xe9b5dba5, 0x8189dbbc, - 0x3956c25b, 0xf348b538, 0x59f111f1, 0xb605d019, - 0x923f82a4, 0xaf194f9b, 0xab1c5ed5, 0xda6d8118, - 0xd807aa98, 0xa3030242, 0x12835b01, 0x45706fbe, - 0x243185be, 0x4ee4b28c, 0x550c7dc3, 0xd5ffb4e2, - 0x72be5d74, 0xf27b896f, 0x80deb1fe, 0x3b1696b1, - 0x9bdc06a7, 0x25c71235, 0xc19bf174, 0xcf692694, - 0xe49b69c1, 0x9ef14ad2, 0xefbe4786, 0x384f25e3, - 0x0fc19dc6, 0x8b8cd5b5, 0x240ca1cc, 0x77ac9c65, - 0x2de92c6f, 0x592b0275, 0x4a7484aa, 0x6ea6e483, - 0x5cb0a9dc, 0xbd41fbd4, 0x76f988da, 0x831153b5, - 0x983e5152, 0xee66dfab, 0xa831c66d, 0x2db43210, - 0xb00327c8, 0x98fb213f, 0xbf597fc7, 0xbeef0ee4, - 0xc6e00bf3, 0x3da88fc2, 0xd5a79147, 0x930aa725, - 0x06ca6351, 0xe003826f, 0x14292967, 0x0a0e6e70, - 0x27b70a85, 0x46d22ffc, 0x2e1b2138, 0x5c26c926, - 0x4d2c6dfc, 0x5ac42aed, 0x53380d13, 0x9d95b3df, - 0x650a7354, 0x8baf63de, 0x766a0abb, 0x3c77b2a8, - 0x81c2c92e, 0x47edaee6, 0x92722c85, 0x1482353b, - 0xa2bfe8a1, 0x4cf10364, 0xa81a664b, 0xbc423001, - 0xc24b8b70, 0xd0f89791, 0xc76c51a3, 0x0654be30, - 0xd192e819, 0xd6ef5218, 0xd6990624, 0x5565a910, - 0xf40e3585, 0x5771202a, 0x106aa070, 0x32bbd1b8, - 0x19a4c116, 0xb8d2d0c8, 0x1e376c08, 0x5141ab53, - 0x2748774c, 0xdf8eeb99, 0x34b0bcb5, 0xe19b48a8, - 0x391c0cb3, 0xc5c95a63, 0x4ed8aa4a, 0xe3418acb, - 0x5b9cca4f, 0x7763e373, 0x682e6ff3, 0xd6b2b8a3, - 0x748f82ee, 0x5defb2fc, 0x78a5636f, 0x43172f60, - 0x84c87814, 0xa1f0ab72, 0x8cc70208, 0x1a6439ec, - 0x90befffa, 0x23631e28, 0xa4506ceb, 0xde82bde9, - 0xbef9a3f7, 0xb2c67915, 0xc67178f2, 0xe372532b, - 0xca273ece, 0xea26619c, 0xd186b8c7, 0x21c0c207, - 0xeada7dd6, 0xcde0eb1e, 0xf57d4f7f, 0xee6ed178, - 0x06f067aa, 0x72176fba, 0x0a637dc5, 0xa2c898a6, - 0x113f9804, 0xbef90dae, 0x1b710b35, 0x131c471b, - 0x28db77f5, 0x23047d84, 0x32caab7b, 0x40c72493, - 0x3c9ebe0a, 0x15c9bebc, 0x431d67c4, 0x9c100d4c, - 0x4cc5d4be, 0xcb3e42b6, 0x597f299c, 0xfc657e2a, - 0x5fcb6fab, 0x3ad6faec, 0x6c44198c, 0x4a475817 -]; + // To avoid recursion in the case that type === "newListener"! Before + // adding it to the listeners, first emit "newListener". + if (this._events.newListener) + this.emit('newListener', type, + isFunction(listener.listener) ? + listener.listener : listener); -var sha1_K = [ - 0x5A827999, 0x6ED9EBA1, - 0x8F1BBCDC, 0xCA62C1D6 -]; + if (!this._events[type]) + // Optimize the case of one listener. Don't need the extra array object. + this._events[type] = listener; + else if (isObject(this._events[type])) + // If we've already got an array, just append. + this._events[type].push(listener); + else + // Adding the second element, need to change to array. + this._events[type] = [this._events[type], listener]; -function SHA256() { - if (!(this instanceof SHA256)) - return new SHA256(); + // Check for listener leak + if (isObject(this._events[type]) && !this._events[type].warned) { + if (!isUndefined(this._maxListeners)) { + m = this._maxListeners; + } else { + m = EventEmitter.defaultMaxListeners; + } - BlockHash.call(this); - this.h = [ 0x6a09e667, 0xbb67ae85, 0x3c6ef372, 0xa54ff53a, - 0x510e527f, 0x9b05688c, 0x1f83d9ab, 0x5be0cd19 ]; - this.k = sha256_K; - this.W = new Array(64); -} -utils.inherits(SHA256, BlockHash); -exports.sha256 = SHA256; + if (m && m > 0 && this._events[type].length > m) { + this._events[type].warned = true; + console.error('(node) warning: possible EventEmitter memory ' + + 'leak detected. %d listeners added. ' + + 'Use emitter.setMaxListeners() to increase limit.', + this._events[type].length); + if (typeof console.trace === 'function') { + // not supported in IE 10 + console.trace(); + } + } + } -SHA256.blockSize = 512; -SHA256.outSize = 256; -SHA256.hmacStrength = 192; -SHA256.padLength = 64; + return this; +}; -SHA256.prototype._update = function _update(msg, start) { - var W = this.W; +EventEmitter.prototype.on = EventEmitter.prototype.addListener; - for (var i = 0; i < 16; i++) - W[i] = msg[start + i]; - for (; i < W.length; i++) - W[i] = sum32_4(g1_256(W[i - 2]), W[i - 7], g0_256(W[i - 15]), W[i - 16]); +EventEmitter.prototype.once = function(type, listener) { + if (!isFunction(listener)) + throw TypeError('listener must be a function'); - var a = this.h[0]; - var b = this.h[1]; - var c = this.h[2]; - var d = this.h[3]; - var e = this.h[4]; - var f = this.h[5]; - var g = this.h[6]; - var h = this.h[7]; + var fired = false; - assert(this.k.length === W.length); - for (var i = 0; i < W.length; i++) { - var T1 = sum32_5(h, s1_256(e), ch32(e, f, g), this.k[i], W[i]); - var T2 = sum32(s0_256(a), maj32(a, b, c)); - h = g; - g = f; - f = e; - e = sum32(d, T1); - d = c; - c = b; - b = a; - a = sum32(T1, T2); + function g() { + this.removeListener(type, g); + + if (!fired) { + fired = true; + listener.apply(this, arguments); + } } - this.h[0] = sum32(this.h[0], a); - this.h[1] = sum32(this.h[1], b); - this.h[2] = sum32(this.h[2], c); - this.h[3] = sum32(this.h[3], d); - this.h[4] = sum32(this.h[4], e); - this.h[5] = sum32(this.h[5], f); - this.h[6] = sum32(this.h[6], g); - this.h[7] = sum32(this.h[7], h); -}; + g.listener = listener; + this.on(type, g); -SHA256.prototype._digest = function digest(enc) { - if (enc === 'hex') - return utils.toHex32(this.h, 'big'); - else - return utils.split32(this.h, 'big'); + return this; }; -function SHA224() { - if (!(this instanceof SHA224)) - return new SHA224(); +// emits a 'removeListener' event iff the listener was removed +EventEmitter.prototype.removeListener = function(type, listener) { + var list, position, length, i; - SHA256.call(this); - this.h = [ 0xc1059ed8, 0x367cd507, 0x3070dd17, 0xf70e5939, - 0xffc00b31, 0x68581511, 0x64f98fa7, 0xbefa4fa4 ]; -} -utils.inherits(SHA224, SHA256); -exports.sha224 = SHA224; + if (!isFunction(listener)) + throw TypeError('listener must be a function'); -SHA224.blockSize = 512; -SHA224.outSize = 224; -SHA224.hmacStrength = 192; -SHA224.padLength = 64; + if (!this._events || !this._events[type]) + return this; -SHA224.prototype._digest = function digest(enc) { - // Just truncate output - if (enc === 'hex') - return utils.toHex32(this.h.slice(0, 7), 'big'); - else - return utils.split32(this.h.slice(0, 7), 'big'); + list = this._events[type]; + length = list.length; + position = -1; + + if (list === listener || + (isFunction(list.listener) && list.listener === listener)) { + delete this._events[type]; + if (this._events.removeListener) + this.emit('removeListener', type, listener); + + } else if (isObject(list)) { + for (i = length; i-- > 0;) { + if (list[i] === listener || + (list[i].listener && list[i].listener === listener)) { + position = i; + break; + } + } + + if (position < 0) + return this; + + if (list.length === 1) { + list.length = 0; + delete this._events[type]; + } else { + list.splice(position, 1); + } + + if (this._events.removeListener) + this.emit('removeListener', type, listener); + } + + return this; }; -function SHA512() { - if (!(this instanceof SHA512)) - return new SHA512(); +EventEmitter.prototype.removeAllListeners = function(type) { + var key, listeners; - BlockHash.call(this); - this.h = [ 0x6a09e667, 0xf3bcc908, - 0xbb67ae85, 0x84caa73b, - 0x3c6ef372, 0xfe94f82b, - 0xa54ff53a, 0x5f1d36f1, - 0x510e527f, 0xade682d1, - 0x9b05688c, 0x2b3e6c1f, - 0x1f83d9ab, 0xfb41bd6b, - 0x5be0cd19, 0x137e2179 ]; - this.k = sha512_K; - this.W = new Array(160); -} -utils.inherits(SHA512, BlockHash); -exports.sha512 = SHA512; + if (!this._events) + return this; -SHA512.blockSize = 1024; -SHA512.outSize = 512; -SHA512.hmacStrength = 192; -SHA512.padLength = 128; + // not listening for removeListener, no need to emit + if (!this._events.removeListener) { + if (arguments.length === 0) + this._events = {}; + else if (this._events[type]) + delete this._events[type]; + return this; + } -SHA512.prototype._prepareBlock = function _prepareBlock(msg, start) { - var W = this.W; + // emit removeListener for all listeners on all events + if (arguments.length === 0) { + for (key in this._events) { + if (key === 'removeListener') continue; + this.removeAllListeners(key); + } + this.removeAllListeners('removeListener'); + this._events = {}; + return this; + } - // 32 x 32bit words - for (var i = 0; i < 32; i++) - W[i] = msg[start + i]; - for (; i < W.length; i += 2) { - var c0_hi = g1_512_hi(W[i - 4], W[i - 3]); // i - 2 - var c0_lo = g1_512_lo(W[i - 4], W[i - 3]); - var c1_hi = W[i - 14]; // i - 7 - var c1_lo = W[i - 13]; - var c2_hi = g0_512_hi(W[i - 30], W[i - 29]); // i - 15 - var c2_lo = g0_512_lo(W[i - 30], W[i - 29]); - var c3_hi = W[i - 32]; // i - 16 - var c3_lo = W[i - 31]; + listeners = this._events[type]; - W[i] = sum64_4_hi(c0_hi, c0_lo, - c1_hi, c1_lo, - c2_hi, c2_lo, - c3_hi, c3_lo); - W[i + 1] = sum64_4_lo(c0_hi, c0_lo, - c1_hi, c1_lo, - c2_hi, c2_lo, - c3_hi, c3_lo); + if (isFunction(listeners)) { + this.removeListener(type, listeners); + } else if (listeners) { + // LIFO order + while (listeners.length) + this.removeListener(type, listeners[listeners.length - 1]); } + delete this._events[type]; + + return this; }; -SHA512.prototype._update = function _update(msg, start) { - this._prepareBlock(msg, start); +EventEmitter.prototype.listeners = function(type) { + var ret; + if (!this._events || !this._events[type]) + ret = []; + else if (isFunction(this._events[type])) + ret = [this._events[type]]; + else + ret = this._events[type].slice(); + return ret; +}; - var W = this.W; +EventEmitter.prototype.listenerCount = function(type) { + if (this._events) { + var evlistener = this._events[type]; - var ah = this.h[0]; - var al = this.h[1]; - var bh = this.h[2]; - var bl = this.h[3]; - var ch = this.h[4]; - var cl = this.h[5]; - var dh = this.h[6]; - var dl = this.h[7]; - var eh = this.h[8]; - var el = this.h[9]; - var fh = this.h[10]; - var fl = this.h[11]; - var gh = this.h[12]; - var gl = this.h[13]; - var hh = this.h[14]; - var hl = this.h[15]; + if (isFunction(evlistener)) + return 1; + else if (evlistener) + return evlistener.length; + } + return 0; +}; + +EventEmitter.listenerCount = function(emitter, type) { + return emitter.listenerCount(type); +}; - assert(this.k.length === W.length); - for (var i = 0; i < W.length; i += 2) { - var c0_hi = hh; - var c0_lo = hl; - var c1_hi = s1_512_hi(eh, el); - var c1_lo = s1_512_lo(eh, el); - var c2_hi = ch64_hi(eh, el, fh, fl, gh, gl); - var c2_lo = ch64_lo(eh, el, fh, fl, gh, gl); - var c3_hi = this.k[i]; - var c3_lo = this.k[i + 1]; - var c4_hi = W[i]; - var c4_lo = W[i + 1]; +function isFunction(arg) { + return typeof arg === 'function'; +} - var T1_hi = sum64_5_hi(c0_hi, c0_lo, - c1_hi, c1_lo, - c2_hi, c2_lo, - c3_hi, c3_lo, - c4_hi, c4_lo); - var T1_lo = sum64_5_lo(c0_hi, c0_lo, - c1_hi, c1_lo, - c2_hi, c2_lo, - c3_hi, c3_lo, - c4_hi, c4_lo); - - var c0_hi = s0_512_hi(ah, al); - var c0_lo = s0_512_lo(ah, al); - var c1_hi = maj64_hi(ah, al, bh, bl, ch, cl); - var c1_lo = maj64_lo(ah, al, bh, bl, ch, cl); +function isNumber(arg) { + return typeof arg === 'number'; +} - var T2_hi = sum64_hi(c0_hi, c0_lo, c1_hi, c1_lo); - var T2_lo = sum64_lo(c0_hi, c0_lo, c1_hi, c1_lo); +function isObject(arg) { + return typeof arg === 'object' && arg !== null; +} - hh = gh; - hl = gl; +function isUndefined(arg) { + return arg === void 0; +} - gh = fh; - gl = fl; +},{}],91:[function(require,module,exports){ +var Buffer = require(159).Buffer +var MD5 = require(117) - fh = eh; - fl = el; +/* eslint-disable camelcase */ +function EVP_BytesToKey (password, salt, keyBits, ivLen) { + if (!Buffer.isBuffer(password)) password = Buffer.from(password, 'binary') + if (salt) { + if (!Buffer.isBuffer(salt)) salt = Buffer.from(salt, 'binary') + if (salt.length !== 8) throw new RangeError('salt should be Buffer with 8 byte length') + } - eh = sum64_hi(dh, dl, T1_hi, T1_lo); - el = sum64_lo(dl, dl, T1_hi, T1_lo); + var keyLen = keyBits / 8 + var key = Buffer.alloc(keyLen) + var iv = Buffer.alloc(ivLen || 0) + var tmp = Buffer.alloc(0) - dh = ch; - dl = cl; + while (keyLen > 0 || ivLen > 0) { + var hash = new MD5() + hash.update(tmp) + hash.update(password) + if (salt) hash.update(salt) + tmp = hash.digest() - ch = bh; - cl = bl; + var used = 0 - bh = ah; - bl = al; + if (keyLen > 0) { + var keyStart = key.length - keyLen + used = Math.min(keyLen, tmp.length) + tmp.copy(key, keyStart, 0, used) + keyLen -= used + } - ah = sum64_hi(T1_hi, T1_lo, T2_hi, T2_lo); - al = sum64_lo(T1_hi, T1_lo, T2_hi, T2_lo); + if (used < tmp.length && ivLen > 0) { + var ivStart = iv.length - ivLen + var length = Math.min(ivLen, tmp.length - used) + tmp.copy(iv, ivStart, used, used + length) + ivLen -= length + } } - sum64(this.h, 0, ah, al); - sum64(this.h, 2, bh, bl); - sum64(this.h, 4, ch, cl); - sum64(this.h, 6, dh, dl); - sum64(this.h, 8, eh, el); - sum64(this.h, 10, fh, fl); - sum64(this.h, 12, gh, gl); - sum64(this.h, 14, hh, hl); -}; + tmp.fill(0) + return { key: key, iv: iv } +} -SHA512.prototype._digest = function digest(enc) { - if (enc === 'hex') - return utils.toHex32(this.h, 'big'); - else - return utils.split32(this.h, 'big'); -}; +module.exports = EVP_BytesToKey -function SHA384() { - if (!(this instanceof SHA384)) - return new SHA384(); +},{"117":117,"159":159}],92:[function(require,module,exports){ +'use strict' +var Buffer = require(159).Buffer +var Transform = require(169).Transform +var inherits = require(109) - SHA512.call(this); - this.h = [ 0xcbbb9d5d, 0xc1059ed8, - 0x629a292a, 0x367cd507, - 0x9159015a, 0x3070dd17, - 0x152fecd8, 0xf70e5939, - 0x67332667, 0xffc00b31, - 0x8eb44a87, 0x68581511, - 0xdb0c2e0d, 0x64f98fa7, - 0x47b5481d, 0xbefa4fa4 ]; +function throwIfNotStringOrBuffer (val, prefix) { + if (!Buffer.isBuffer(val) && typeof val !== 'string') { + throw new TypeError(prefix + ' must be a string or a buffer') + } } -utils.inherits(SHA384, SHA512); -exports.sha384 = SHA384; - -SHA384.blockSize = 1024; -SHA384.outSize = 384; -SHA384.hmacStrength = 192; -SHA384.padLength = 128; -SHA384.prototype._digest = function digest(enc) { - if (enc === 'hex') - return utils.toHex32(this.h.slice(0, 12), 'big'); - else - return utils.split32(this.h.slice(0, 12), 'big'); -}; +function HashBase (blockSize) { + Transform.call(this) -function SHA1() { - if (!(this instanceof SHA1)) - return new SHA1(); + this._block = Buffer.allocUnsafe(blockSize) + this._blockSize = blockSize + this._blockOffset = 0 + this._length = [0, 0, 0, 0] - BlockHash.call(this); - this.h = [ 0x67452301, 0xefcdab89, 0x98badcfe, - 0x10325476, 0xc3d2e1f0 ]; - this.W = new Array(80); + this._finalized = false } -utils.inherits(SHA1, BlockHash); -exports.sha1 = SHA1; +inherits(HashBase, Transform) -SHA1.blockSize = 512; -SHA1.outSize = 160; -SHA1.hmacStrength = 80; -SHA1.padLength = 64; +HashBase.prototype._transform = function (chunk, encoding, callback) { + var error = null + try { + this.update(chunk, encoding) + } catch (err) { + error = err + } -SHA1.prototype._update = function _update(msg, start) { - var W = this.W; + callback(error) +} - for (var i = 0; i < 16; i++) - W[i] = msg[start + i]; +HashBase.prototype._flush = function (callback) { + var error = null + try { + this.push(this.digest()) + } catch (err) { + error = err + } - for(; i < W.length; i++) - W[i] = rotl32(W[i - 3] ^ W[i - 8] ^ W[i - 14] ^ W[i - 16], 1); + callback(error) +} - var a = this.h[0]; - var b = this.h[1]; - var c = this.h[2]; - var d = this.h[3]; - var e = this.h[4]; +HashBase.prototype.update = function (data, encoding) { + throwIfNotStringOrBuffer(data, 'Data') + if (this._finalized) throw new Error('Digest already called') + if (!Buffer.isBuffer(data)) data = Buffer.from(data, encoding) - for (var i = 0; i < W.length; i++) { - var s = ~~(i / 20); - var t = sum32_5(rotl32(a, 5), ft_1(s, b, c, d), e, W[i], sha1_K[s]); - e = d; - d = c; - c = rotl32(b, 30); - b = a; - a = t; + // consume data + var block = this._block + var offset = 0 + while (this._blockOffset + data.length - offset >= this._blockSize) { + for (var i = this._blockOffset; i < this._blockSize;) block[i++] = data[offset++] + this._update() + this._blockOffset = 0 } + while (offset < data.length) block[this._blockOffset++] = data[offset++] - this.h[0] = sum32(this.h[0], a); - this.h[1] = sum32(this.h[1], b); - this.h[2] = sum32(this.h[2], c); - this.h[3] = sum32(this.h[3], d); - this.h[4] = sum32(this.h[4], e); -}; - -SHA1.prototype._digest = function digest(enc) { - if (enc === 'hex') - return utils.toHex32(this.h, 'big'); - else - return utils.split32(this.h, 'big'); -}; + // update length + for (var j = 0, carry = data.length * 8; carry > 0; ++j) { + this._length[j] += carry + carry = (this._length[j] / 0x0100000000) | 0 + if (carry > 0) this._length[j] -= 0x0100000000 * carry + } -function ch32(x, y, z) { - return (x & y) ^ ((~x) & z); + return this } -function maj32(x, y, z) { - return (x & y) ^ (x & z) ^ (y & z); +HashBase.prototype._update = function () { + throw new Error('_update is not implemented') } -function p32(x, y, z) { - return x ^ y ^ z; -} +HashBase.prototype.digest = function (encoding) { + if (this._finalized) throw new Error('Digest already called') + this._finalized = true -function s0_256(x) { - return rotr32(x, 2) ^ rotr32(x, 13) ^ rotr32(x, 22); -} + var digest = this._digest() + if (encoding !== undefined) digest = digest.toString(encoding) -function s1_256(x) { - return rotr32(x, 6) ^ rotr32(x, 11) ^ rotr32(x, 25); -} + // reset state + this._block.fill(0) + this._blockOffset = 0 + for (var i = 0; i < 4; ++i) this._length[i] = 0 -function g0_256(x) { - return rotr32(x, 7) ^ rotr32(x, 18) ^ (x >>> 3); + return digest } -function g1_256(x) { - return rotr32(x, 17) ^ rotr32(x, 19) ^ (x >>> 10); +HashBase.prototype._digest = function () { + throw new Error('_digest is not implemented') } -function ft_1(s, x, y, z) { - if (s === 0) - return ch32(x, y, z); - if (s === 1 || s === 3) - return p32(x, y, z); - if (s === 2) - return maj32(x, y, z); -} +module.exports = HashBase -function ch64_hi(xh, xl, yh, yl, zh, zl) { - var r = (xh & yh) ^ ((~xh) & zh); - if (r < 0) - r += 0x100000000; - return r; -} +},{"109":109,"159":159,"169":169}],93:[function(require,module,exports){ +var hash = exports; -function ch64_lo(xh, xl, yh, yl, zh, zl) { - var r = (xl & yl) ^ ((~xl) & zl); - if (r < 0) - r += 0x100000000; - return r; -} +hash.utils = require(104); +hash.common = require(94); +hash.sha = require(97); +hash.ripemd = require(96); +hash.hmac = require(95); -function maj64_hi(xh, xl, yh, yl, zh, zl) { - var r = (xh & yh) ^ (xh & zh) ^ (yh & zh); - if (r < 0) - r += 0x100000000; - return r; -} +// Proxy hash functions to the main object +hash.sha1 = hash.sha.sha1; +hash.sha256 = hash.sha.sha256; +hash.sha224 = hash.sha.sha224; +hash.sha384 = hash.sha.sha384; +hash.sha512 = hash.sha.sha512; +hash.ripemd160 = hash.ripemd.ripemd160; -function maj64_lo(xh, xl, yh, yl, zh, zl) { - var r = (xl & yl) ^ (xl & zl) ^ (yl & zl); - if (r < 0) - r += 0x100000000; - return r; -} +},{"104":104,"94":94,"95":95,"96":96,"97":97}],94:[function(require,module,exports){ +'use strict'; -function s0_512_hi(xh, xl) { - var c0_hi = rotr64_hi(xh, xl, 28); - var c1_hi = rotr64_hi(xl, xh, 2); // 34 - var c2_hi = rotr64_hi(xl, xh, 7); // 39 +var utils = require(104); +var assert = require(119); - var r = c0_hi ^ c1_hi ^ c2_hi; - if (r < 0) - r += 0x100000000; - return r; +function BlockHash() { + this.pending = null; + this.pendingTotal = 0; + this.blockSize = this.constructor.blockSize; + this.outSize = this.constructor.outSize; + this.hmacStrength = this.constructor.hmacStrength; + this.padLength = this.constructor.padLength / 8; + this.endian = 'big'; + + this._delta8 = this.blockSize / 8; + this._delta32 = this.blockSize / 32; } +exports.BlockHash = BlockHash; -function s0_512_lo(xh, xl) { - var c0_lo = rotr64_lo(xh, xl, 28); - var c1_lo = rotr64_lo(xl, xh, 2); // 34 - var c2_lo = rotr64_lo(xl, xh, 7); // 39 +BlockHash.prototype.update = function update(msg, enc) { + // Convert message to array, pad it, and join into 32bit blocks + msg = utils.toArray(msg, enc); + if (!this.pending) + this.pending = msg; + else + this.pending = this.pending.concat(msg); + this.pendingTotal += msg.length; - var r = c0_lo ^ c1_lo ^ c2_lo; - if (r < 0) - r += 0x100000000; - return r; -} + // Enough data, try updating + if (this.pending.length >= this._delta8) { + msg = this.pending; + + // Process pending data in blocks + var r = msg.length % this._delta8; + this.pending = msg.slice(msg.length - r, msg.length); + if (this.pending.length === 0) + this.pending = null; + + msg = utils.join32(msg, 0, msg.length - r, this.endian); + for (var i = 0; i < msg.length; i += this._delta32) + this._update(msg, i, i + this._delta32); + } + + return this; +}; + +BlockHash.prototype.digest = function digest(enc) { + this.update(this._pad()); + assert(this.pending === null); + + return this._digest(enc); +}; + +BlockHash.prototype._pad = function pad() { + var len = this.pendingTotal; + var bytes = this._delta8; + var k = bytes - ((len + this.padLength) % bytes); + var res = new Array(k + this.padLength); + res[0] = 0x80; + for (var i = 1; i < k; i++) + res[i] = 0; -function s1_512_hi(xh, xl) { - var c0_hi = rotr64_hi(xh, xl, 14); - var c1_hi = rotr64_hi(xh, xl, 18); - var c2_hi = rotr64_hi(xl, xh, 9); // 41 + // Append length + len <<= 3; + if (this.endian === 'big') { + for (var t = 8; t < this.padLength; t++) + res[i++] = 0; - var r = c0_hi ^ c1_hi ^ c2_hi; - if (r < 0) - r += 0x100000000; - return r; -} + res[i++] = 0; + res[i++] = 0; + res[i++] = 0; + res[i++] = 0; + res[i++] = (len >>> 24) & 0xff; + res[i++] = (len >>> 16) & 0xff; + res[i++] = (len >>> 8) & 0xff; + res[i++] = len & 0xff; + } else { + res[i++] = len & 0xff; + res[i++] = (len >>> 8) & 0xff; + res[i++] = (len >>> 16) & 0xff; + res[i++] = (len >>> 24) & 0xff; + res[i++] = 0; + res[i++] = 0; + res[i++] = 0; + res[i++] = 0; -function s1_512_lo(xh, xl) { - var c0_lo = rotr64_lo(xh, xl, 14); - var c1_lo = rotr64_lo(xh, xl, 18); - var c2_lo = rotr64_lo(xl, xh, 9); // 41 + for (t = 8; t < this.padLength; t++) + res[i++] = 0; + } - var r = c0_lo ^ c1_lo ^ c2_lo; - if (r < 0) - r += 0x100000000; - return r; -} + return res; +}; -function g0_512_hi(xh, xl) { - var c0_hi = rotr64_hi(xh, xl, 1); - var c1_hi = rotr64_hi(xh, xl, 8); - var c2_hi = shr64_hi(xh, xl, 7); +},{"104":104,"119":119}],95:[function(require,module,exports){ +'use strict'; - var r = c0_hi ^ c1_hi ^ c2_hi; - if (r < 0) - r += 0x100000000; - return r; -} +var utils = require(104); +var assert = require(119); -function g0_512_lo(xh, xl) { - var c0_lo = rotr64_lo(xh, xl, 1); - var c1_lo = rotr64_lo(xh, xl, 8); - var c2_lo = shr64_lo(xh, xl, 7); +function Hmac(hash, key, enc) { + if (!(this instanceof Hmac)) + return new Hmac(hash, key, enc); + this.Hash = hash; + this.blockSize = hash.blockSize / 8; + this.outSize = hash.outSize / 8; + this.inner = null; + this.outer = null; - var r = c0_lo ^ c1_lo ^ c2_lo; - if (r < 0) - r += 0x100000000; - return r; + this._init(utils.toArray(key, enc)); } +module.exports = Hmac; -function g1_512_hi(xh, xl) { - var c0_hi = rotr64_hi(xh, xl, 19); - var c1_hi = rotr64_hi(xl, xh, 29); // 61 - var c2_hi = shr64_hi(xh, xl, 6); +Hmac.prototype._init = function init(key) { + // Shorten key, if needed + if (key.length > this.blockSize) + key = new this.Hash().update(key).digest(); + assert(key.length <= this.blockSize); - var r = c0_hi ^ c1_hi ^ c2_hi; - if (r < 0) - r += 0x100000000; - return r; -} + // Add padding to key + for (var i = key.length; i < this.blockSize; i++) + key.push(0); -function g1_512_lo(xh, xl) { - var c0_lo = rotr64_lo(xh, xl, 19); - var c1_lo = rotr64_lo(xl, xh, 29); // 61 - var c2_lo = shr64_lo(xh, xl, 6); + for (i = 0; i < key.length; i++) + key[i] ^= 0x36; + this.inner = new this.Hash().update(key); - var r = c0_lo ^ c1_lo ^ c2_lo; - if (r < 0) - r += 0x100000000; - return r; -} + // 0x36 ^ 0x5c = 0x6a + for (i = 0; i < key.length; i++) + key[i] ^= 0x6a; + this.outer = new this.Hash().update(key); +}; -},{"88":88}],93:[function(require,module,exports){ -var utils = exports; -var inherits = require(97); +Hmac.prototype.update = function update(msg, enc) { + this.inner.update(msg, enc); + return this; +}; -function toArray(msg, enc) { - if (Array.isArray(msg)) - return msg.slice(); - if (!msg) - return []; - var res = []; - if (typeof msg === 'string') { - if (!enc) { - for (var i = 0; i < msg.length; i++) { - var c = msg.charCodeAt(i); - var hi = c >> 8; - var lo = c & 0xff; - if (hi) - res.push(hi, lo); - else - res.push(lo); - } - } else if (enc === 'hex') { - msg = msg.replace(/[^a-z0-9]+/ig, ''); - if (msg.length % 2 !== 0) - msg = '0' + msg; - for (var i = 0; i < msg.length; i += 2) - res.push(parseInt(msg[i] + msg[i + 1], 16)); - } - } else { - for (var i = 0; i < msg.length; i++) - res[i] = msg[i] | 0; - } - return res; -} -utils.toArray = toArray; +Hmac.prototype.digest = function digest(enc) { + this.outer.update(this.inner.digest()); + return this.outer.digest(enc); +}; -function toHex(msg) { - var res = ''; - for (var i = 0; i < msg.length; i++) - res += zero2(msg[i].toString(16)); - return res; -} -utils.toHex = toHex; +},{"104":104,"119":119}],96:[function(require,module,exports){ +'use strict'; -function htonl(w) { - var res = (w >>> 24) | - ((w >>> 8) & 0xff00) | - ((w << 8) & 0xff0000) | - ((w & 0xff) << 24); - return res >>> 0; -} -utils.htonl = htonl; +var utils = require(104); +var common = require(94); -function toHex32(msg, endian) { - var res = ''; - for (var i = 0; i < msg.length; i++) { - var w = msg[i]; - if (endian === 'little') - w = htonl(w); - res += zero8(w.toString(16)); - } - return res; -} -utils.toHex32 = toHex32; +var rotl32 = utils.rotl32; +var sum32 = utils.sum32; +var sum32_3 = utils.sum32_3; +var sum32_4 = utils.sum32_4; +var BlockHash = common.BlockHash; -function zero2(word) { - if (word.length === 1) - return '0' + word; - else - return word; -} -utils.zero2 = zero2; +function RIPEMD160() { + if (!(this instanceof RIPEMD160)) + return new RIPEMD160(); -function zero8(word) { - if (word.length === 7) - return '0' + word; - else if (word.length === 6) - return '00' + word; - else if (word.length === 5) - return '000' + word; - else if (word.length === 4) - return '0000' + word; - else if (word.length === 3) - return '00000' + word; - else if (word.length === 2) - return '000000' + word; - else if (word.length === 1) - return '0000000' + word; - else - return word; -} -utils.zero8 = zero8; + BlockHash.call(this); -function join32(msg, start, end, endian) { - var len = end - start; - assert(len % 4 === 0); - var res = new Array(len / 4); - for (var i = 0, k = start; i < res.length; i++, k += 4) { - var w; - if (endian === 'big') - w = (msg[k] << 24) | (msg[k + 1] << 16) | (msg[k + 2] << 8) | msg[k + 3]; - else - w = (msg[k + 3] << 24) | (msg[k + 2] << 16) | (msg[k + 1] << 8) | msg[k]; - res[i] = w >>> 0; - } - return res; + this.h = [ 0x67452301, 0xefcdab89, 0x98badcfe, 0x10325476, 0xc3d2e1f0 ]; + this.endian = 'little'; } -utils.join32 = join32; +utils.inherits(RIPEMD160, BlockHash); +exports.ripemd160 = RIPEMD160; -function split32(msg, endian) { - var res = new Array(msg.length * 4); - for (var i = 0, k = 0; i < msg.length; i++, k += 4) { - var m = msg[i]; - if (endian === 'big') { - res[k] = m >>> 24; - res[k + 1] = (m >>> 16) & 0xff; - res[k + 2] = (m >>> 8) & 0xff; - res[k + 3] = m & 0xff; - } else { - res[k + 3] = m >>> 24; - res[k + 2] = (m >>> 16) & 0xff; - res[k + 1] = (m >>> 8) & 0xff; - res[k] = m & 0xff; - } +RIPEMD160.blockSize = 512; +RIPEMD160.outSize = 160; +RIPEMD160.hmacStrength = 192; +RIPEMD160.padLength = 64; + +RIPEMD160.prototype._update = function update(msg, start) { + var A = this.h[0]; + var B = this.h[1]; + var C = this.h[2]; + var D = this.h[3]; + var E = this.h[4]; + var Ah = A; + var Bh = B; + var Ch = C; + var Dh = D; + var Eh = E; + for (var j = 0; j < 80; j++) { + var T = sum32( + rotl32( + sum32_4(A, f(j, B, C, D), msg[r[j] + start], K(j)), + s[j]), + E); + A = E; + E = D; + D = rotl32(C, 10); + C = B; + B = T; + T = sum32( + rotl32( + sum32_4(Ah, f(79 - j, Bh, Ch, Dh), msg[rh[j] + start], Kh(j)), + sh[j]), + Eh); + Ah = Eh; + Eh = Dh; + Dh = rotl32(Ch, 10); + Ch = Bh; + Bh = T; } - return res; -} -utils.split32 = split32; - -function rotr32(w, b) { - return (w >>> b) | (w << (32 - b)); -} -utils.rotr32 = rotr32; - -function rotl32(w, b) { - return (w << b) | (w >>> (32 - b)); -} -utils.rotl32 = rotl32; - -function sum32(a, b) { - return (a + b) >>> 0; -} -utils.sum32 = sum32; - -function sum32_3(a, b, c) { - return (a + b + c) >>> 0; -} -utils.sum32_3 = sum32_3; + T = sum32_3(this.h[1], C, Dh); + this.h[1] = sum32_3(this.h[2], D, Eh); + this.h[2] = sum32_3(this.h[3], E, Ah); + this.h[3] = sum32_3(this.h[4], A, Bh); + this.h[4] = sum32_3(this.h[0], B, Ch); + this.h[0] = T; +}; -function sum32_4(a, b, c, d) { - return (a + b + c + d) >>> 0; -} -utils.sum32_4 = sum32_4; +RIPEMD160.prototype._digest = function digest(enc) { + if (enc === 'hex') + return utils.toHex32(this.h, 'little'); + else + return utils.split32(this.h, 'little'); +}; -function sum32_5(a, b, c, d, e) { - return (a + b + c + d + e) >>> 0; +function f(j, x, y, z) { + if (j <= 15) + return x ^ y ^ z; + else if (j <= 31) + return (x & y) | ((~x) & z); + else if (j <= 47) + return (x | (~y)) ^ z; + else if (j <= 63) + return (x & z) | (y & (~z)); + else + return x ^ (y | (~z)); } -utils.sum32_5 = sum32_5; -function assert(cond, msg) { - if (!cond) - throw new Error(msg || 'Assertion failed'); +function K(j) { + if (j <= 15) + return 0x00000000; + else if (j <= 31) + return 0x5a827999; + else if (j <= 47) + return 0x6ed9eba1; + else if (j <= 63) + return 0x8f1bbcdc; + else + return 0xa953fd4e; } -utils.assert = assert; - -utils.inherits = inherits; - -function sum64(buf, pos, ah, al) { - var bh = buf[pos]; - var bl = buf[pos + 1]; - var lo = (al + bl) >>> 0; - var hi = (lo < al ? 1 : 0) + ah + bh; - buf[pos] = hi >>> 0; - buf[pos + 1] = lo; +function Kh(j) { + if (j <= 15) + return 0x50a28be6; + else if (j <= 31) + return 0x5c4dd124; + else if (j <= 47) + return 0x6d703ef3; + else if (j <= 63) + return 0x7a6d76e9; + else + return 0x00000000; } -exports.sum64 = sum64; -function sum64_hi(ah, al, bh, bl) { - var lo = (al + bl) >>> 0; - var hi = (lo < al ? 1 : 0) + ah + bh; - return hi >>> 0; -}; -exports.sum64_hi = sum64_hi; - -function sum64_lo(ah, al, bh, bl) { - var lo = al + bl; - return lo >>> 0; -}; -exports.sum64_lo = sum64_lo; +var r = [ + 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, + 7, 4, 13, 1, 10, 6, 15, 3, 12, 0, 9, 5, 2, 14, 11, 8, + 3, 10, 14, 4, 9, 15, 8, 1, 2, 7, 0, 6, 13, 11, 5, 12, + 1, 9, 11, 10, 0, 8, 12, 4, 13, 3, 7, 15, 14, 5, 6, 2, + 4, 0, 5, 9, 7, 12, 2, 10, 14, 1, 3, 8, 11, 6, 15, 13 +]; -function sum64_4_hi(ah, al, bh, bl, ch, cl, dh, dl) { - var carry = 0; - var lo = al; - lo = (lo + bl) >>> 0; - carry += lo < al ? 1 : 0; - lo = (lo + cl) >>> 0; - carry += lo < cl ? 1 : 0; - lo = (lo + dl) >>> 0; - carry += lo < dl ? 1 : 0; +var rh = [ + 5, 14, 7, 0, 9, 2, 11, 4, 13, 6, 15, 8, 1, 10, 3, 12, + 6, 11, 3, 7, 0, 13, 5, 10, 14, 15, 8, 12, 4, 9, 1, 2, + 15, 5, 1, 3, 7, 14, 6, 9, 11, 8, 12, 2, 10, 0, 4, 13, + 8, 6, 4, 1, 3, 11, 15, 0, 5, 12, 2, 13, 9, 7, 10, 14, + 12, 15, 10, 4, 1, 5, 8, 7, 6, 2, 13, 14, 0, 3, 9, 11 +]; - var hi = ah + bh + ch + dh + carry; - return hi >>> 0; -}; -exports.sum64_4_hi = sum64_4_hi; +var s = [ + 11, 14, 15, 12, 5, 8, 7, 9, 11, 13, 14, 15, 6, 7, 9, 8, + 7, 6, 8, 13, 11, 9, 7, 15, 7, 12, 15, 9, 11, 7, 13, 12, + 11, 13, 6, 7, 14, 9, 13, 15, 14, 8, 13, 6, 5, 12, 7, 5, + 11, 12, 14, 15, 14, 15, 9, 8, 9, 14, 5, 6, 8, 6, 5, 12, + 9, 15, 5, 11, 6, 8, 13, 12, 5, 12, 13, 14, 11, 8, 5, 6 +]; -function sum64_4_lo(ah, al, bh, bl, ch, cl, dh, dl) { - var lo = al + bl + cl + dl; - return lo >>> 0; -}; -exports.sum64_4_lo = sum64_4_lo; +var sh = [ + 8, 9, 9, 11, 13, 15, 15, 5, 7, 7, 8, 11, 14, 14, 12, 6, + 9, 13, 15, 7, 12, 8, 9, 11, 7, 7, 12, 7, 6, 15, 13, 11, + 9, 7, 15, 11, 8, 6, 6, 14, 12, 13, 5, 14, 13, 13, 7, 5, + 15, 5, 8, 11, 14, 14, 6, 14, 6, 9, 12, 9, 12, 5, 15, 8, + 8, 5, 12, 9, 12, 5, 14, 6, 8, 13, 6, 5, 15, 13, 11, 11 +]; -function sum64_5_hi(ah, al, bh, bl, ch, cl, dh, dl, eh, el) { - var carry = 0; - var lo = al; - lo = (lo + bl) >>> 0; - carry += lo < al ? 1 : 0; - lo = (lo + cl) >>> 0; - carry += lo < cl ? 1 : 0; - lo = (lo + dl) >>> 0; - carry += lo < dl ? 1 : 0; - lo = (lo + el) >>> 0; - carry += lo < el ? 1 : 0; +},{"104":104,"94":94}],97:[function(require,module,exports){ +'use strict'; - var hi = ah + bh + ch + dh + eh + carry; - return hi >>> 0; -}; -exports.sum64_5_hi = sum64_5_hi; +exports.sha1 = require(98); +exports.sha224 = require(99); +exports.sha256 = require(100); +exports.sha384 = require(101); +exports.sha512 = require(102); -function sum64_5_lo(ah, al, bh, bl, ch, cl, dh, dl, eh, el) { - var lo = al + bl + cl + dl + el; +},{"100":100,"101":101,"102":102,"98":98,"99":99}],98:[function(require,module,exports){ +'use strict'; - return lo >>> 0; -}; -exports.sum64_5_lo = sum64_5_lo; +var utils = require(104); +var common = require(94); +var shaCommon = require(103); -function rotr64_hi(ah, al, num) { - var r = (al << (32 - num)) | (ah >>> num); - return r >>> 0; -}; -exports.rotr64_hi = rotr64_hi; +var rotl32 = utils.rotl32; +var sum32 = utils.sum32; +var sum32_5 = utils.sum32_5; +var ft_1 = shaCommon.ft_1; +var BlockHash = common.BlockHash; -function rotr64_lo(ah, al, num) { - var r = (ah << (32 - num)) | (al >>> num); - return r >>> 0; -}; -exports.rotr64_lo = rotr64_lo; +var sha1_K = [ + 0x5A827999, 0x6ED9EBA1, + 0x8F1BBCDC, 0xCA62C1D6 +]; -function shr64_hi(ah, al, num) { - return ah >>> num; -}; -exports.shr64_hi = shr64_hi; +function SHA1() { + if (!(this instanceof SHA1)) + return new SHA1(); -function shr64_lo(ah, al, num) { - var r = (ah << (32 - num)) | (al >>> num); - return r >>> 0; -}; -exports.shr64_lo = shr64_lo; + BlockHash.call(this); + this.h = [ + 0x67452301, 0xefcdab89, 0x98badcfe, + 0x10325476, 0xc3d2e1f0 ]; + this.W = new Array(80); +} -},{"97":97}],94:[function(require,module,exports){ -exports.read = function (buffer, offset, isLE, mLen, nBytes) { - var e, m - var eLen = nBytes * 8 - mLen - 1 - var eMax = (1 << eLen) - 1 - var eBias = eMax >> 1 - var nBits = -7 - var i = isLE ? (nBytes - 1) : 0 - var d = isLE ? -1 : 1 - var s = buffer[offset + i] +utils.inherits(SHA1, BlockHash); +module.exports = SHA1; - i += d +SHA1.blockSize = 512; +SHA1.outSize = 160; +SHA1.hmacStrength = 80; +SHA1.padLength = 64; - e = s & ((1 << (-nBits)) - 1) - s >>= (-nBits) - nBits += eLen - for (; nBits > 0; e = e * 256 + buffer[offset + i], i += d, nBits -= 8) {} +SHA1.prototype._update = function _update(msg, start) { + var W = this.W; - m = e & ((1 << (-nBits)) - 1) - e >>= (-nBits) - nBits += mLen - for (; nBits > 0; m = m * 256 + buffer[offset + i], i += d, nBits -= 8) {} + for (var i = 0; i < 16; i++) + W[i] = msg[start + i]; - if (e === 0) { - e = 1 - eBias - } else if (e === eMax) { - return m ? NaN : ((s ? -1 : 1) * Infinity) - } else { - m = m + Math.pow(2, mLen) - e = e - eBias - } - return (s ? -1 : 1) * m * Math.pow(2, e - mLen) -} + for(; i < W.length; i++) + W[i] = rotl32(W[i - 3] ^ W[i - 8] ^ W[i - 14] ^ W[i - 16], 1); -exports.write = function (buffer, value, offset, isLE, mLen, nBytes) { - var e, m, c - var eLen = nBytes * 8 - mLen - 1 - var eMax = (1 << eLen) - 1 - var eBias = eMax >> 1 - var rt = (mLen === 23 ? Math.pow(2, -24) - Math.pow(2, -77) : 0) - var i = isLE ? 0 : (nBytes - 1) - var d = isLE ? 1 : -1 - var s = value < 0 || (value === 0 && 1 / value < 0) ? 1 : 0 + var a = this.h[0]; + var b = this.h[1]; + var c = this.h[2]; + var d = this.h[3]; + var e = this.h[4]; - value = Math.abs(value) + for (i = 0; i < W.length; i++) { + var s = ~~(i / 20); + var t = sum32_5(rotl32(a, 5), ft_1(s, b, c, d), e, W[i], sha1_K[s]); + e = d; + d = c; + c = rotl32(b, 30); + b = a; + a = t; + } - if (isNaN(value) || value === Infinity) { - m = isNaN(value) ? 1 : 0 - e = eMax - } else { - e = Math.floor(Math.log(value) / Math.LN2) - if (value * (c = Math.pow(2, -e)) < 1) { - e-- - c *= 2 - } - if (e + eBias >= 1) { - value += rt / c - } else { - value += rt * Math.pow(2, 1 - eBias) - } - if (value * c >= 2) { - e++ - c /= 2 - } + this.h[0] = sum32(this.h[0], a); + this.h[1] = sum32(this.h[1], b); + this.h[2] = sum32(this.h[2], c); + this.h[3] = sum32(this.h[3], d); + this.h[4] = sum32(this.h[4], e); +}; - if (e + eBias >= eMax) { - m = 0 - e = eMax - } else if (e + eBias >= 1) { - m = (value * c - 1) * Math.pow(2, mLen) - e = e + eBias - } else { - m = value * Math.pow(2, eBias - 1) * Math.pow(2, mLen) - e = 0 - } - } +SHA1.prototype._digest = function digest(enc) { + if (enc === 'hex') + return utils.toHex32(this.h, 'big'); + else + return utils.split32(this.h, 'big'); +}; - for (; mLen >= 8; buffer[offset + i] = m & 0xff, i += d, m /= 256, mLen -= 8) {} +},{"103":103,"104":104,"94":94}],99:[function(require,module,exports){ +'use strict'; - e = (e << mLen) | m - eLen += mLen - for (; eLen > 0; buffer[offset + i] = e & 0xff, i += d, e /= 256, eLen -= 8) {} +var utils = require(104); +var SHA256 = require(100); - buffer[offset + i - d] |= s * 128 +function SHA224() { + if (!(this instanceof SHA224)) + return new SHA224(); + + SHA256.call(this); + this.h = [ + 0xc1059ed8, 0x367cd507, 0x3070dd17, 0xf70e5939, + 0xffc00b31, 0x68581511, 0x64f98fa7, 0xbefa4fa4 ]; } +utils.inherits(SHA224, SHA256); +module.exports = SHA224; -},{}],95:[function(require,module,exports){ -(function (global){ -'use strict'; -var Mutation = global.MutationObserver || global.WebKitMutationObserver; +SHA224.blockSize = 512; +SHA224.outSize = 224; +SHA224.hmacStrength = 192; +SHA224.padLength = 64; -var scheduleDrain; +SHA224.prototype._digest = function digest(enc) { + // Just truncate output + if (enc === 'hex') + return utils.toHex32(this.h.slice(0, 7), 'big'); + else + return utils.split32(this.h.slice(0, 7), 'big'); +}; -{ - if (Mutation) { - var called = 0; - var observer = new Mutation(nextTick); - var element = global.document.createTextNode(''); - observer.observe(element, { - characterData: true - }); - scheduleDrain = function () { - element.data = (called = ++called % 2); - }; - } else if (!global.setImmediate && typeof global.MessageChannel !== 'undefined') { - var channel = new global.MessageChannel(); - channel.port1.onmessage = nextTick; - scheduleDrain = function () { - channel.port2.postMessage(0); - }; - } else if ('document' in global && 'onreadystatechange' in global.document.createElement('script')) { - scheduleDrain = function () { - // Create a