utils

package

v0.0.0-...-11cfeae Latest Latest Go to latest Published: Feb 25, 2021 License: Apache-2.0 Imports: 5 Imported by: 0

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

UnmarshalBigInt correctly decode a bigint, even a negative bigint

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