Module zksync_consensus_crypto::bls12_381

Currently replaced by [bn254] and unused. This module implements the BLS signature over the BLS12_381 curve. This is just an adapter of blst, exposing zksync-bft-specific API. The implementation is based on the IRTF draft v5.

This implementation does NOT protect against rogue key attacks (see https://crypto.stanford.edu/~dabo/pubs/papers/BLSmultisig.html). We expect signers to separately prove knowledge of the secret key, called proof of possession (POP). This library is meant to be used with validators, where each validator registers their public key on-chain together with a POP (a signature over their public key is sufficient).

Modules

• testonly
  Random key generation, intended for use in testing

Structs

• AggregateSignature
  Type safety wrapper around a blst aggregate signature
• ProofOfPossession
  Type safety wrapper around a blst proof of possession.
• PublicKey
  Type safety wrapper around a blst public key.
• SecretKey
  Type safety wrapper around a blst SecretKey
• Signature
  Type safety wrapper around a blst signature

Constants

• DST
  The domain separation tag for this signature scheme.
• DST_POP
  The domain separation tag for the proof of possession.
• INFINITY_SIGNATURE
  Represents the signature at infinity.
• SIGNATURE_BYTES_LEN
  The byte-length of a BLS signature when serialized in compressed form.