bls

README

BLS signature

A Go implementation of the BLS(Boneh–Lynn–Shacham) signature.

Tests

$ go test .

Benchmarks

$ go test -timeout 1h -bench=. -benchtime=1m

Reference

BLS: https://en.wikipedia.org/wiki/BLS_digital_signature

Documentation

Overview

Package bls implements BLS signature

Index

• func GenRandomKeyPair() (*PrivateKey, *PublicKey, error)
• func Sign(key *PrivateKey, msg []byte) *bls12_381_ecc.G1Affine
• func Verify(sig *bls12_381_ecc.G1Affine, pub *PublicKey, msg []byte) (bool, error)
• type PrivateKey
• type PublicKey

Functions

func GenRandomKeyPair

func GenRandomKeyPair() (*PrivateKey, *PublicKey, error)

GenRandomKeyPair generate a random BLS private/public key pair for client

func Sign

func Sign(key *PrivateKey, msg []byte) *bls12_381_ecc.G1Affine

Sign generate BLS signature using private key sig = sk * hashToG1(m)

func Verify

func Verify(sig *bls12_381_ecc.G1Affine, pub *PublicKey, msg []byte) (bool, error)

Verify verify BLS signature using public key e(sig, g_2)=e(hashToG1(m), pub)

Types

type PrivateKey

type PrivateKey struct {
	X *big.Int
}

PrivateKey client private key

type PublicKey

type PublicKey struct {
	P *bls12_381_ecc.G2Affine
}

PublicKey client public key