crypto

Documentation

Index

• func CreateAddress(b common.Address, nonce uint64) common.Address
• func Ecrecover(hash, sig []byte) ([]byte, error)
• func FromECDSA(prv *ecdsa.PrivateKey) []byte
• func FromECDSAPub(pub *ecdsa.PublicKey) []byte
• func GenerateKey() (*ecdsa.PrivateKey, error)
• func HexToECDSA(hexkey string) (*ecdsa.PrivateKey, error)
• func Keccak256(data ...[]byte) []byte
• func Keccak256Hash(data ...[]byte) (h common.Hash)
• func LoadECDSA(file string) (*ecdsa.PrivateKey, error)
• func PubkeyToAddress(p ecdsa.PublicKey) common.Address
• func S256() elliptic.Curve
• func SaveECDSA(file string, key *ecdsa.PrivateKey) error
• func Sha3Hash(data ...[]byte) common.Hash
• func SigToPub(hash, sig []byte) (*ecdsa.PublicKey, error)
• func Sign(hash []byte, prv *ecdsa.PrivateKey) (sig []byte, err error)
• func ToECDSA(prv []byte) *ecdsa.PrivateKey
• func ToECDSAPub(pub []byte) *ecdsa.PublicKey
• func ValidateSignatureValues(v byte, r, s *big.Int, homestead bool) bool

Functions

func CreateAddress

func CreateAddress(b common.Address, nonce uint64) common.Address

Creates an ethereum address given the bytes and the nonce

func Ecrecover

func Ecrecover(hash, sig []byte) ([]byte, error)

func FromECDSA

func FromECDSA(prv *ecdsa.PrivateKey) []byte

func FromECDSAPub

func FromECDSAPub(pub *ecdsa.PublicKey) []byte

func GenerateKey

func GenerateKey() (*ecdsa.PrivateKey, error)

func HexToECDSA

func HexToECDSA(hexkey string) (*ecdsa.PrivateKey, error)

HexToECDSA parses a secp256k1 private key.

func Keccak256

func Keccak256(data ...[]byte) []byte

func Keccak256Hash

func Keccak256Hash(data ...[]byte) (h common.Hash)

func LoadECDSA

func LoadECDSA(file string) (*ecdsa.PrivateKey, error)

LoadECDSA loads a secp256k1 private key from the given file. The key data is expected to be hex-encoded.

func PubkeyToAddress

func PubkeyToAddress(p ecdsa.PublicKey) common.Address

func S256

func S256() elliptic.Curve

S256 returns an instance of the secp256k1 curve.

func SaveECDSA

func SaveECDSA(file string, key *ecdsa.PrivateKey) error

SaveECDSA saves a secp256k1 private key to the given file with restrictive permissions. The key data is saved hex-encoded.

func Sha3Hash

func Sha3Hash(data ...[]byte) common.Hash

Deprecated: For backward compatibility as other packages depend on these

func SigToPub

func SigToPub(hash, sig []byte) (*ecdsa.PublicKey, error)

func Sign

func Sign(hash []byte, prv *ecdsa.PrivateKey) (sig []byte, err error)

Sign calculates an ECDSA signature.

This function is susceptible to chosen plaintext attacks that can leak information about the private key that is used for signing. Callers must be aware that the given hash cannot be chosen by an adversery. Common solution is to hash any input before calculating the signature.

The produced signature is in the [R || S || V] format where V is 0 or 1.

func ToECDSA

func ToECDSA(prv []byte) *ecdsa.PrivateKey

ToECDSA creates a private key with the given D value.

func ToECDSAPub

func ToECDSAPub(pub []byte) *ecdsa.PublicKey

func ValidateSignatureValues

func ValidateSignatureValues(v byte, r, s *big.Int, homestead bool) bool

ValidateSignatureValues verifies whether the signature values are valid with the given chain rules. The v value is assumed to be either 0 or 1.