secp256

Documentation

Index

• func IsSNormalized(sigS *big.Int) bool
• func NewSecp256() (*secp256, error)
• func NormalizeS(sigS *big.Int) *big.Int
• type MessageHashType

Functions

func IsSNormalized

func IsSNormalized(sigS *big.Int) bool

IsSNormalized returns true for the integer sigS if sigS falls in lower half of the curve order

func NewSecp256

func NewSecp256() (*secp256, error)

NewSecp256 returns the component able to verify Secp256 signatures

func NormalizeS

func NormalizeS(sigS *big.Int) *big.Int

NormalizeS will invert the s value if not already in the lower half of curve order value

Types

type MessageHashType

type MessageHashType uint8

MessageHashType defines the type of hash algorithm

const (
	ECDSAPlainMsg MessageHashType = iota
	ECDSASha256
	ECDSADoubleSha256
	ECDSAKeccak256
	ECDSARipemd160
)

constants that define the available hash algorithms