internal

package

v0.1.2 Latest Latest Go to latest Published: Dec 2, 2021 License: Apache-2.0 Imports: 8 Imported by: 0

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Repository

github.com/meshplus/crypto-standard

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Documentation ¶

Index ¶

Variables
func BaseMul(scalar []byte) (*big.Int, *big.Int)
func CurveScalarMult(Bx, By *big.Int, scalar []byte) (*big.Int, *big.Int)
func RecoverPubkey(msg []byte, sig []byte) ([]byte, error)
func Sign(msg []byte, seckey []byte, rand io.Reader) ([]byte, error)

Constants ¶

This section is empty.

Variables ¶

View Source

var (
	ErrInvalidMsgLen       = errors.New("invalid message length for signature recovery")
	ErrInvalidSignatureLen = errors.New("invalid signature length")
	ErrInvalidRecoveryID   = errors.New("invalid signature recovery id")
)

ErrInvalid defines error message

Functions ¶

func RecoverPubkey ¶

func RecoverPubkey(msg []byte, sig []byte) ([]byte, error)

RecoverPubkey returns the the public key of the signer. msg must be the 32-byte hash of the message to be signed. sig must be a 65-byte compact ECDSA signature containing the recovery id as the last element.

func Sign ¶

func Sign(msg []byte, seckey []byte, rand io.Reader) ([]byte, error)

Sign return

Types ¶