signature

Documentation

Overview

Package signature provides helper functions for handling the blockchain signature needs. Special thanks: https://raw.githubusercontent.com/ardanlabs/blockchain/refs/heads/main/foundation/blockchain/signature/signature.go

Index

• Constants
• func FromAddress(value any, v, r, s *big.Int) (string, error)
• func GetPublicKeyFromSignature(value any, v, r, s *big.Int) (*ecdsa.PublicKey, error)
• func Hash(value any) string
• func HashWithComicCoinStamp(value any) ([]byte, error)
• func Sign(value any, privateKey *ecdsa.PrivateKey) (v, r, s *big.Int, err error)
• func SignatureString(v, r, s *big.Int) string
• func ToSignatureBytes(v, r, s *big.Int) []byte
• func ToSignatureBytesWithComicCoinID(v, r, s *big.Int) []byte
• func ToVRSFromHexSignature(sigStr string) (v, r, s *big.Int, err error)
• func VerifySignature(v, r, s *big.Int) error

Constants

const ZeroHash string = "0x0000000000000000000000000000000000000000000000000000000000000000"

ZeroHash represents a hash code of zeros.

Functions

func FromAddress

func FromAddress(value any, v, r, s *big.Int) (string, error)

FromAddress extracts the address for the account that signed the data.

func GetPublicKeyFromSignature

func GetPublicKeyFromSignature(value any, v, r, s *big.Int) (*ecdsa.PublicKey, error)

GetPublicKeyFromSignature extracts the public key for the account that signed the data.

func Hash

func Hash(value any) string

Hash returns a unique string for the value.

func HashWithComicCoinStamp

func HashWithComicCoinStamp(value any) ([]byte, error)

func Sign

func Sign(value any, privateKey *ecdsa.PrivateKey) (v, r, s *big.Int, err error)

Sign uses the specified private key to sign the data.

func SignatureString

func SignatureString(v, r, s *big.Int) string

SignatureString returns the signature as a string.

func ToSignatureBytes

func ToSignatureBytes(v, r, s *big.Int) []byte

ToSignatureBytes converts the r, s, v values into a slice of bytes with the removal of the comicCoinID.

func ToSignatureBytesWithComicCoinID

func ToSignatureBytesWithComicCoinID(v, r, s *big.Int) []byte

ToSignatureBytesWithComicCoinID converts the r, s, v values into a slice of bytes keeping the ComicCoin id.

func ToVRSFromHexSignature

func ToVRSFromHexSignature(sigStr string) (v, r, s *big.Int, err error)

ToVRSFromHexSignature converts a hex representation of the signature into its R, S and V parts.

func VerifySignature

func VerifySignature(v, r, s *big.Int) error

VerifySignature verifies the signature conforms to our standards.