ecdsa

package

v0.3.0 Latest Latest Go to latest Published: Oct 5, 2023 License: Apache-2.0 Imports: 14 Imported by: 0

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SPDX-License-Identifier: Apache-2.0

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

IsLow checks that s is a low-S

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

PemDecodeKey takes bytes and returns a Go key

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

PemEncodeKey takes a Go key and converts it to bytes

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

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

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

func NewECDSASigner() (*ECDSASigner, error)

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

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

type ECDSAVerifier struct {
	PK *ecdsa.PublicKey
}

func NewECDSAVerifier(pk *ecdsa.PublicKey) *ECDSAVerifier

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

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