Struct G2PubkeyRfc

pub struct G2PubkeyRfc(/* private fields */);

The pubkey type for drand networks with scheme ID bls-unchained-g1-rfc9380.

Examples

Quicknet verification

use hex_literal::hex;
use drand_verify::{G2PubkeyRfc, Pubkey};

const PK_QUICKNET: [u8; 96] = hex!("83cf0f2896adee7eb8b5f01fcad3912212c437e0073e911fb90022d3e760183c8c4b450b6a0a6c3ac6a5776a2d1064510d1fec758c921cc22b0e17e63aaf4bcb5ed66304de9cf809bd274ca73bab4af5a6e9c76a4bc09e76eae8991ef5ece45a");
let pk = G2PubkeyRfc::from_fixed(PK_QUICKNET).unwrap();

// https://api3.drand.sh/52db9ba70e0cc0f6eaf7803dd07447a1f5477735fd3f661792ba94600c84e971/public/123
let signature = hex::decode("b75c69d0b72a5d906e854e808ba7e2accb1542ac355ae486d591aa9d43765482e26cd02df835d3546d23c4b13e0dfc92").unwrap();
let round: u64 = 123;
let result = pk.verify(round, b"", &signature).unwrap();
assert!(result);

Trait Implementations

impl Pubkey for G2PubkeyRfc

fn verify_step2( &self, signature: &[u8], msg_on_curve: &Self::Other, ) -> Result<bool, VerificationError>

Takes this public key and verifies the signature with it. The message has to be created with Self::msg_to_curve.

type This = G2

The curve (G1 or G2) on which the public key lives

type ThisCompressed = [u8; 96]

The type in which this point is expressed in binary data (either [u8; 48] or [u8; 96])

type Other = G1

The other curve (G2 or G1) on which the signature lives

fn msg_to_curve(msg: &[u8]) -> Self::Other

fn from_fixed(data: [u8; 96]) -> Result<Self, InvalidPoint>

fn from_fixed_unchecked(data: [u8; 96]) -> Result<Self, InvalidPoint>

fn from_variable(data: &[u8]) -> Result<Self, InvalidPoint>

fn verify( &self, round: u64, previous_signature: &[u8], signature: &[u8], ) -> Result<bool, VerificationError>

The high level verification method for a drand beacon.