Struct nazgul::mlsag::MLSAG

pub struct MLSAG { /* fields omitted */ }

Multilayer Linkable Spontaneous Anonymous Group (MLSAG) signatures

In order to sign transactions, one has to sign with multiple private keys. In this paper, Shen Noether et al. describe a multi-layered generalization of the bLSAG signature scheme applicable when we have a set of n · m keys

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

Trait Implementations

impl KeyImageGen<Vec<Scalar>, Vec<RistrettoPoint>> for MLSAG

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

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

impl Link for MLSAG

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

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

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

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

To sign you need ks which is the set of private keys you want to sign with. The ring contains public keys for everybody except you. Your public key will be inserted into it at random (secret) index. The message is what you are signing

impl Verify for MLSAG

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

To verify a signature you need the message too