secp256k1

Documentation

Index

• func PublicKeyToAddress(pubKey *btcec.PublicKey) *ethtypes.Address0xHex
• type KeyPair
  • func GenerateSecp256k1KeyPair() (*KeyPair, error)
  • func NewSecp256k1KeyPair(b []byte) (*KeyPair, error)
  • func (k *KeyPair) PrivateKeyBytes() []byte
  • func (k *KeyPair) PublicKeyBytes() []byte
  • func (k *KeyPair) Sign(message []byte) (ethSig *SignatureData, err error)
  • func (k *KeyPair) SignDirect(message []byte) (ethSig *SignatureData, err error)
• type SignatureData
  • func (s *SignatureData) Recover(message []byte, chainID int64) (a *ethtypes.Address0xHex, err error)
  • func (s *SignatureData) RecoverDirect(message []byte, chainID int64) (a *ethtypes.Address0xHex, err error)
  • func (s *SignatureData) UpdateEIP155(chainID int64)
  • func (s *SignatureData) UpdateEIP2930()
• type Signer
• type SignerDirect

Functions

func PublicKeyToAddress

func PublicKeyToAddress(pubKey *btcec.PublicKey) *ethtypes.Address0xHex

Types

type KeyPair

type KeyPair struct {
	PrivateKey *btcec.PrivateKey
	PublicKey  *btcec.PublicKey
	Address    ethtypes.Address0xHex
}

func GenerateSecp256k1KeyPair

func GenerateSecp256k1KeyPair() (*KeyPair, error)

func NewSecp256k1KeyPair

func NewSecp256k1KeyPair(b []byte) (*KeyPair, error)

func (*KeyPair) PrivateKeyBytes

func (k *KeyPair) PrivateKeyBytes() []byte

func (*KeyPair) PublicKeyBytes

func (k *KeyPair) PublicKeyBytes() []byte

func (*KeyPair) Sign

func (k *KeyPair) Sign(message []byte) (ethSig *SignatureData, err error)

Sign hashes the input then signs it

func (*KeyPair) SignDirect

func (k *KeyPair) SignDirect(message []byte) (ethSig *SignatureData, err error)

SignDirect performs raw signing - give legacy 27/28 V values

type SignatureData

type SignatureData struct {
	V *big.Int
	R *big.Int
	S *big.Int
}

func (*SignatureData) Recover

func (s *SignatureData) Recover(message []byte, chainID int64) (a *ethtypes.Address0xHex, err error)

Recover obtains the original signer from the hash of the message

func (*SignatureData) RecoverDirect

func (s *SignatureData) RecoverDirect(message []byte, chainID int64) (a *ethtypes.Address0xHex, err error)

Recover obtains the original signer

func (*SignatureData) UpdateEIP155

func (s *SignatureData) UpdateEIP155(chainID int64)

EIP-155 rules - 2xChainID + 35 - starting point must be legacy 27/28

func (*SignatureData) UpdateEIP2930

func (s *SignatureData) UpdateEIP2930()

EIP-2930 (/ EIP-1559) rules - 0 or 1 V value for raw Y-parity value (chainID goes into the payload)

type Signer

type Signer interface {
	Sign(msgToHashAndSign []byte) (*SignatureData, error)
}

Signer is the low level common interface that can be implemented by any module which provides signature capability

type SignerDirect

type SignerDirect interface {
	Signer
	SignDirect(message []byte) (*SignatureData, error)
}