crypto

README

crypto

功能

• 支持 ed25519, secp256k1, sm2
• 统一的 PrivKey，Pubkey, Signature 接口, 详见 crypto.go

依赖

• sm2 编译依赖 gmssl 2.0 版本
• 安装：bash ./deps/install_gmssl.sh

Documentation

Index

• Constants
• func CRandBytes(numBytes int) []byte
• func CRandHex(numDigits int) string
• func CReader() io.Reader
• func GetName(ty int) string
• func GetType(name string) int
• func MixEntropy(seedBytes []byte)
• func Register(name string, driver Crypto)
• func RegisterType(name string, ty int)
• func Ripemd160(bytes []byte) []byte
• func Sha256(bytes []byte) []byte
• func Sm3Hash(msg []byte) []byte
• type CertSignature
• type Crypto
  • func New(name string) (c Crypto, err error)
• type PrivKey
• type PubKey
• type Signature

Constants

const (
	SignNameED25519 = "ed25519"
)

Functions

func CRandBytes

func CRandBytes(numBytes int) []byte

This uses the OS and the Seed(s).

func CRandHex

func CRandHex(numDigits int) string

RandHex(24) gives 96 bits of randomness, strong enough for most purposes.

func CReader

func CReader() io.Reader

Returns a crand.Reader mixed with user-supplied entropy

func GetName

func GetName(ty int) string

func GetType

func GetType(name string) int

func MixEntropy

func MixEntropy(seedBytes []byte)

Mix additional bytes of randomness, e.g. from hardware, user-input, etc. It is OK to call it multiple times. It does not diminish security.

func Register

func Register(name string, driver Crypto)

func RegisterType

func RegisterType(name string, ty int)

func Ripemd160

func Ripemd160(bytes []byte) []byte

func Sha256

func Sha256(bytes []byte) []byte

func Sm3Hash

func Sm3Hash(msg []byte) []byte

Types

type CertSignature

type CertSignature struct {
	Signature []byte
	Cert      []byte
}

type Crypto

type Crypto interface {
	GenKey() (PrivKey, error)
	SignatureFromBytes([]byte) (Signature, error)
	PrivKeyFromBytes([]byte) (PrivKey, error)
	PubKeyFromBytes([]byte) (PubKey, error)
}

func New

func New(name string) (c Crypto, err error)

type PrivKey

type PrivKey interface {
	Bytes() []byte
	Sign(msg []byte) Signature
	PubKey() PubKey
	Equals(PrivKey) bool
}

type PubKey

type PubKey interface {
	Bytes() []byte
	KeyString() string
	VerifyBytes(msg []byte, sig Signature) bool
	Equals(PubKey) bool
}

type Signature

type Signature interface {
	Bytes() []byte
	IsZero() bool
	String() string
	Equals(Signature) bool
}