schnorr

package
v0.0.0-...-ffb7191 Latest Latest
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 Go to latest Published: Jan 25, 2019 License: MPL-2.0 Imports: 5 Imported by: 2

Documentation

Overview

Package schnorr implements the vanilla Schnorr signature scheme. See https://en.wikipedia.org/wiki/Schnorr_signature.

The only difference regarding the vanilla reference is the computation of the response. This implementation adds the random component with the challenge times private key while the Wikipedia article substracts them.

The resulting signature is compatible with EdDSA verification algorithm when using the edwards25519 group, and by extension the CoSi verification algorithm.

Index

Constants

This section is empty.

Variables

This section is empty.

Functions

func Sign 

func Sign(s Suite, private kyber.Scalar, msg []byte) ([]byte, error)

Sign creates a Sign signature from a msg and a private key. This signature can be verified with VerifySchnorr. It's also a valid EdDSA signature when using the edwards25519 Group.

func Verify 

func Verify(g kyber.Group, public kyber.Point, msg, sig []byte) error

Verify verifies a given Schnorr signature. It returns nil iff the given signature is valid.

Types

type Suite 

type Suite interface {
	kyber.Group
	kyber.Random
}

Suite represents the set of functionalities needed by the package schnorr.

Source Files

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