Struct nazgul::blsag::BLSAG

pub struct BLSAG { /* fields omitted */ }

Back’s Linkable Spontaneous Anonymous Group (bLSAG) signatures

This an enhanced version of the LSAG algorithm where linkability is independent of the ring’s decoy members.

Please read tests at the bottom of the source code for this module for examples on how to use it

Trait Implementations

impl KeyImageGen<Scalar, RistrettoPoint> for BLSAG

fn generate_key_image<Hash: Digest<OutputSize = U64> + Clone + Default>(
    k: Scalar
) -> RistrettoPoint

Some signature schemes require the key images to be signed as well. Use this method to generate them

impl Link for BLSAG

fn link(signature_1: BLSAG, signature_2: BLSAG) -> bool

This is for linking two signatures and checking if they are signed by the same person

impl Sign<Scalar, Vec<RistrettoPoint>> for BLSAG

fn sign<Hash: Digest<OutputSize = U64> + Clone + Default, CSPRNG: CryptoRng + RngCore + Default>(
    k: Scalar,
    ring: Vec<RistrettoPoint>,
    message: &Vec<u8>
) -> BLSAG

To sign you need k your private key, and ring which is the public keys of everyone except you. You are signing the message

impl Verify for BLSAG

fn verify<Hash: Digest<OutputSize = U64> + Clone + Default>(
    signature: BLSAG,
    message: &Vec<u8>
) -> bool

To verify a signature you need the message too