impl poseidon2 with plonky3 - #9
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* optimize poseidon2 * Merge branch 'zz/impl_poseidon2_with_plonky3' into zz/optimize_poseidon2 * finally faster than poseidon * clean up * update num_constants for poseidon * reverting add_canonical_u64 * Update hash.rs * Update hash.rs
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Summary
This PR implements Poseidon2 hash function in Plonky2, adapted from the
zklighter-perps-circuits-plonkyrepository with additional hand-optimizations.It is split into two PRs: this one #9 and a follow up one #10. For the ease of reviewing.
Key Features
Performance (single permutation, GoldilocksField, width=12)
Notes
Poseidon2 implementation will be removed from
zklighter-perps-circuits-plonkyhttps://github.com/elliottech/zklighter-perps-circuits-plonky/pull/379Misc
Replace #8
Reason: #8 uses poseidon2 from horizon labs. this PR uses
zklighter-perps-circuits-plonky's version