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feat: Hash to Curve Utility for Secp256k1 #261

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Added support for hashing to secp256k1 curve inside circuit. Based on hashing-to-elliptic-curves and circom-secp256k1-hash-to-curve

Scope

  • Sha256Chip - A chip to calculate sha256 hash in circuit with flexible input length.

Benchmarks

k = 18 lookup_bits = 17

Gate Chip | Phase 0: 8264595 advice cells
Total 266 fixed cells
Total range check advice cells to lookup per phase: [56807, 0, 0]

@shreyas-londhe shreyas-londhe force-pushed the feat/secp256k1-hash2curve branch 3 times, most recently from 49001fe to 23f3419 Compare March 6, 2024 07:22
shreyas-londhe and others added 12 commits April 22, 2024 16:48
* chore: fix link (axiom-crypto#256)

* chore: update `snark-verifier` git tag in `zkevm-hashes`

* chore: update rust toolchain

* chore: fix clippy

* chore: update should_panic message

* chore: switch to community-edition

---------

Co-authored-by: yanziseeker <[email protected]>
* chore: fixing typos

* fix: lint issue
* chore:fix typo

* chore:fix typo
* Update mod.rs

* Update mod.rs

* Update fixed_base.rs

* Update mod.rs

* Update bytes.rs
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6 participants