utils

Documentation

Index

• func EllipticMarshal(curve elliptic.Curve, x, y *big.Int) ([]byte, error)
• func EllipticUnmarshal(curve elliptic.Curve, data []byte) (x, y *big.Int, err error)
• func MarshalBigInt(num *big.Int) ([]byte, error)
• func UnmarshalBigInt(bytes []byte) (*big.Int, error)

Functions

func EllipticMarshal

func EllipticMarshal(curve elliptic.Curve, x, y *big.Int) ([]byte, error)

EllipticMarshal is revised from elliptic.Marshal to correct the negative bigint problem

func EllipticUnmarshal

func EllipticUnmarshal(curve elliptic.Curve, data []byte) (x, y *big.Int, err error)

EllipticUnmarshal is revised from elliptic.Unmarshal to correct the negative bigint problem

func MarshalBigInt

func MarshalBigInt(num *big.Int) ([]byte, error)

MarshalBigInt correctly encode a negative bigint, if the bigint is negative, don't use big.Int.Bytes() to encode the bigint

func UnmarshalBigInt

func UnmarshalBigInt(bytes []byte) (*big.Int, error)

UnmarshalBigInt correctly decode a bigint, even a negative bigint