Trait vrf::VRF

pub trait VRF<PublicKey, SecretKey> {
    type Error;
    fn prove(
        &mut self, 
        x: SecretKey, 
        alpha: &[u8]
    ) -> Result<Vec<u8>, Self::Error>;
    fn verify(
        &mut self, 
        y: PublicKey, 
        pi: &[u8], 
        alpha: &[u8]
    ) -> Result<Vec<u8>, Self::Error>;
}

A trait containing the common capabilities for all Verifiable Random Functions (VRF) implementations.

Associated Types

type Error

Required methods

fn prove(&mut self, x: SecretKey, alpha: &[u8]) -> Result<Vec<u8>, Self::Error>

Generates proof from a secret key and a message.

Arguments

• x - A secret key.
• alpha - A slice representing the message in octets.

Returns

• If successful, a vector of octets representing the proof of the VRF.

fn verify(
    &mut self,
    y: PublicKey,
    pi: &[u8],
    alpha: &[u8]
) -> Result<Vec<u8>, Self::Error>

Verifies the provided VRF proof and computes the VRF hash output.

Arguments

• y - A public key.
• pi - A slice of octets representing the VRF proof.

Returns

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

Implementors

impl VRF<&'_ [u8], &'_ [u8]> for ECVRF

VRFs are objects capable of generating and verifying proofs.

type Error = Error

impl<'a> VRF<&'a [u8; 33], &'a [u8; 32]> for DummyVRF

type Error = Error