Struct Bls12381

pub struct Bls12381 { /* private fields */ }

BLS12-381 implementation of the Scheme trait.

This implementation uses the blst crate for BLS12-381 operations. This crate implments serialization according to the “ZCash BLS12-381” specification (https://github.com/supranational/blst/tree/master?tab=readme-ov-file#serialization-format) and hashes messages according to RFC 9380.

Trait Implementations

impl Clone for Bls12381

fn clone(&self) -> Bls12381

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Scheme for Bls12381

fn new<R: CryptoRng + Rng>(r: &mut R) -> Self

Returns a new instance of the scheme.

fn from(private_key: PrivateKey) -> Option<Self>

Returns a new instance of the scheme from a secret key.

fn from_seed(seed: u64) -> Self

Returns a new instance of the scheme from a provided seed.

fn private_key(&self) -> PrivateKey

Returns the serialized private key of the signer.

fn public_key(&self) -> PublicKey

Returns the serialized public key of the signer.

fn sign(&mut self, namespace: &[u8], message: &[u8]) -> Signature

Sign the given message.

fn validate(public_key: &PublicKey) -> bool

Verify that a public key is well-formatted.

fn verify( namespace: &[u8], message: &[u8], public_key: &PublicKey, signature: &Signature, ) -> bool

Check that a signature is valid for the given message and public key.

fn len() -> (usize, usize)

Returns the size of a public key and signature in bytes.