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chore: improve BLS constant documentation (#5976)

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Dan Cline
2024-01-08 17:42:49 -05:00
committed by GitHub
parent 189cf490eb
commit ae329773bc
1 changed files with 14 additions and 1 deletions
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15
crates/rpc/rpc-types/src/beacon/constants.rs
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@ -1,4 +1,17 @@
pub const BLS_DST: &[u8] = b"BLS_SIG_BLS12381G2_XMD:SHA-256_SSWU_RO_POP_";
/// The Domain Separation Tag for hash_to_point in Ethereum beacon chain BLS12-381 signatures.
///
/// This is also the name of the ciphersuite that defines beacon chain BLS signatures.
///
/// See:
/// <https://github.com/ethereum/consensus-specs/blob/ffa95b7b72149960c5aded5c95fb40d64bcab199/specs/phase0/beacon-chain.md#bls-signatures>
/// <https://datatracker.ietf.org/doc/html/draft-irtf-cfrg-bls-signature-04>
pub const BLS_DST_SIG: &[u8] = b"BLS_SIG_BLS12381G2_XMD:SHA-256_SSWU_RO_POP_";
/// The number of bytes in a BLS12-381 public key.
pub const BLS_PUBLIC_KEY_BYTES_LEN: usize = 48;
/// The number of bytes in a BLS12-381 secret key.
pub const BLS_SECRET_KEY_BYTES_LEN: usize = 32;
/// The number of bytes in a BLS12-381 signature.
pub const BLS_SIGNATURE_BYTES_LEN: usize = 96;