Trait ECVRF 

pub trait ECVRF<PrivateKey, PublicKey> {
    type Error;

    // Required methods
    fn prove(
        &mut self,
        pkey: PrivateKey,
        alpha_string: &[u8],
    ) -> Result<Vec<u8>, Self::Error>;
    fn proof_to_hash(
        &mut self,
        pi_string: &[u8],
    ) -> Result<Vec<u8>, Self::Error>;
    fn verify(
        &mut self,
        public_key: PublicKey,
        alpha_string: &[u8],
        pi_string: &[u8],
    ) -> Result<Vec<u8>, Self::Error>;
}

A trait containing common capabilities for ECVRF implementations

Required Associated Types

type Error

Required Methods

fn prove( &mut self, pkey: PrivateKey, alpha_string: &[u8], ) -> Result<Vec<u8>, Self::Error>

Generates proof from a private key and a message

Arguments:

• pkey: a private key
• alpha_string: octet string message represented by a slice

Returns:

• if successful, a vector of octets representing the VRF proof

fn proof_to_hash(&mut self, pi_string: &[u8]) -> Result<Vec<u8>, Self::Error>

Generates VRF hash output from the provided proof

Arguments:

• pi_string: generated VRF proof

Returns:

• the VRF hash output

fn verify( &mut self, public_key: PublicKey, alpha_string: &[u8], pi_string: &[u8], ) -> Result<Vec<u8>, Self::Error>

Verifies the provided VRF proof and computes the VRF hash output

Arguments:

• public_key: a public key
• alpha_string: VRF hash input, an octet string
• pi_string: proof to be verified, an octet string

Returns:

• if successful, a vector of octets with the VRF hash output

Implementors

impl ECVRF<&[u8], &[u8]> for ECVRF

type Error = Error