ecdsa

Documentation

Overview

Copyright IBM Corp. All Rights Reserved.

SPDX-License-Identifier: Apache-2.0

Index

• func IsLowS(k *ecdsa.PublicKey, s *big.Int) (bool, error)
• func PemDecodeKey(keyBytes []byte) (interface{}, error)
• func PemEncodeKey(key interface{}) ([]byte, error)
• func ToLowS(k *ecdsa.PublicKey, s *big.Int) (*big.Int, bool, error)
• type ECDSASignature
• type ECDSASigner
  • func NewECDSASigner() (*ECDSASigner, error)
  • func (s *ECDSASigner) Serialize() ([]byte, error)
  • func (d *ECDSASigner) Sign(message []byte) ([]byte, error)
• type ECDSAVerifier
  • func NewECDSAVerifier(pk *ecdsa.PublicKey) *ECDSAVerifier
  • func (v *ECDSAVerifier) Serialize() ([]byte, error)
  • func (d *ECDSAVerifier) Verify(message, sigma []byte) error

Functions

func IsLowS

func IsLowS(k *ecdsa.PublicKey, s *big.Int) (bool, error)

IsLow checks that s is a low-S

func PemDecodeKey

func PemDecodeKey(keyBytes []byte) (interface{}, error)

PemDecodeKey takes bytes and returns a Go key

func PemEncodeKey

func PemEncodeKey(key interface{}) ([]byte, error)

PemEncodeKey takes a Go key and converts it to bytes

func ToLowS

func ToLowS(k *ecdsa.PublicKey, s *big.Int) (*big.Int, bool, error)

Types

type ECDSASignature

type ECDSASignature struct {
	R, S *big.Int
}

type ECDSASigner

type ECDSASigner struct {
	*ECDSAVerifier
	SK *ecdsa.PrivateKey
}

func NewECDSASigner

func NewECDSASigner() (*ECDSASigner, error)

func (*ECDSASigner) Serialize

func (s *ECDSASigner) Serialize() ([]byte, error)

func (*ECDSASigner) Sign

func (d *ECDSASigner) Sign(message []byte) ([]byte, error)

type ECDSAVerifier

type ECDSAVerifier struct {
	PK *ecdsa.PublicKey
}

func NewECDSAVerifier

func NewECDSAVerifier(pk *ecdsa.PublicKey) *ECDSAVerifier

func (*ECDSAVerifier) Serialize

func (v *ECDSAVerifier) Serialize() ([]byte, error)

func (*ECDSAVerifier) Verify

func (d *ECDSAVerifier) Verify(message, sigma []byte) error