multi: add initial implementation of simple taproot chans spec proposal#6877

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Roasbeef wants to merge 87 commits intolightningnetwork:masterfrom

Roasbeef:simple-taproot-chans

Commits on Aug 31, 2022

Commits on Sep 1, 2022

lnwallet: add initial support for musig2 handling for commitment dance
Roasbeef
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Commits on Nov 17, 2022

Commits on Dec 31, 2022

input: add tapleaf+control block logic for sender HTLC scripts
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input: add tapleaf+ctrlblock logic for receiver HTLC scripts
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input: add new taproot second level HTLC scripts+txns
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build: update to musig2 1.0
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lnwallet+input: move mock signer into lnwallet pkg, use new musig session
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multi: morph existing lnwire.SIg into new struct to support schnorr+ecdsa
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lnwallet: update funding nonce gen to pass in priv key
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lnwallet: parse incoming schnorr signature as "schnorr shell"
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lnwallet: update ValidateChannel to recognize musig2+taproot chans
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lnwallet: update CreateHtlcTimeoutTx+CreateHtlcSuccessTx for musig2+taproot chans
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lnwallet/btcwallet/signer: fix SignOutputRaw bug w/ non-default sighash
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lnwallet: properly pass in remoteCommit into NewMusigSession
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lnwallet: add temp methods for going to/from musig2 schnorr shell sigs
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lnwallet: pass in pubkey for nonce gen in musig2.SignCommit
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lnwallet: modify MusigSession.Refresh to return new instance instead of mutate
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lnwallet; update musig2.VerifyCommitSig to pubkey nonce and set proper nonce
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lnwallet: add MusigSession.CombineSigs method
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lnwallet: use input.Signature rather than raw sig pointers
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contractcourt: update the chainWatcher to recognize taproot+musig2 funding scripts
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funding: send nonces along side open+accept channel
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funding: update makeFundingScript for musig2 chans
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funding: send musig2 nonces w/ funding_locked, add recv processing logic
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funding: reject funding attempts for public taproot channels
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funding: add the taproot feature bit for funding announcements
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routing: update chan validate logic to recognize musig2 channels
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lnwallet: add IsTaproot method to ChannelReservation
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lnwallet: update CommitScriptToRemote to properly set taproot script
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lnwallet: update genHtlcScript to dispense taproot HTLC scripts
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lnwallet: update NewLightningChannel with new musig2 opts
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lnwallet: update sig pool to support signing+verifying 2nd level taproot scripts
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lnwallet: update channel state machine dance to support new musig2 flow
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lnwallet: add new public NewMusigChannelNonces method, use pubkey for nonce gen
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lnwallet: add new co-op close opts for providing musig2 session for taproot
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lnwallet: add taproot case to testAddSettleWorkflow
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peer+lnpeer: add new wrapper struct to allow passing opaque opts to channel creation
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htlcswitch: pass along new musig2 nonce information to link
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htlcswitch: send new nonces in chan reest message, add recv logic
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lnwallet/chancloser: add support for musig2 co-op closes w/ auto accept
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rpc: add support for parsing musig2 openchannel requests
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cmd/lncli: add taproot chan parsing support for openchannel
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Commits on Jan 12, 2023

multi: switch to using new partial_sig TLV type for musig sigs
Roasbeef
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Commits on Jan 13, 2023

Commits on Jan 17, 2023