sm2

package

v1.0.2 Latest Latest Go to latest Published: Dec 11, 2021 License: Apache-2.0 Imports: 11 Imported by: 1

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Repository

github.com/Lcfling/cryptogm

Links

Open Source Insights

Documentation ¶

Rendered for

Overview ¶

Package sm2 implements china crypto standards.

Index ¶

Variables
func AffineToP256Point(x, y *big.Int) (out p256Point)
func Decrypt(c []byte, key *PrivateKey) ([]byte, error)
func Encrypt(rand io.Reader, key *PublicKey, msg []byte) (der []byte, err error)
func Hexprint(in []byte)
func P256Sm2() elliptic.Curve
func Sign(rand io.Reader, priv *PrivateKey, msg []byte) (r, s *big.Int, err error)
func SignWithDigest(rand io.Reader, priv *PrivateKey, digest []byte) (r, s *big.Int, err error)
func Test1()
func TestP256_Point()
func Test_amd64()
func Test_p256Func()
func Test_p256InternalFunc()
func Uint64ToAffine(in []uint64) (x, y *big.Int)
func Verify(pub *PublicKey, msg []byte, r, s *big.Int) bool
func VerifyById(pub *PublicKey, msg, id []byte, r, s *big.Int) bool
func VerifyWithDigest(pub *PublicKey, digest []byte, r, s *big.Int) bool
type EncData
type PrivateKey
- func GenerateKey(rand io.Reader) (*PrivateKey, error)
- func (key *PrivateKey) Decrypt(rand io.Reader, msg []byte, opts crypto.DecrypterOpts) (plaintext []byte, err error)
- func (priv *PrivateKey) Public() crypto.PublicKey
- func (priv *PrivateKey) Sign(rand io.Reader, msg []byte, opts crypto.SignerOpts) ([]byte, error)
- func (priv *PrivateKey) SignWithDigest(rand io.Reader, digest []byte, opts crypto.SignerOpts) ([]byte, error)
type PublicKey
- func (pub *PublicKey) Verify(msg []byte, sign []byte) bool
- func (pub *PublicKey) VerifyWithDigest(digest []byte, sign []byte) bool

Constants ¶

This section is empty.

Variables ¶

View Source

var DecryptionErr = errors.New("sm2: decryption error")

View Source

var EncryptionErr = errors.New("sm2: encryption error")

View Source

var SM2PARAM_A, _ = new(big.Int).SetString("FFFFFFFEFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF00000000FFFFFFFFFFFFFFFC", 16)

Functions ¶

func AffineToP256Point ¶

func AffineToP256Point(x, y *big.Int) (out p256Point)

func Decrypt ¶

func Decrypt(c []byte, key *PrivateKey) ([]byte, error)

func Encrypt ¶

func Encrypt(rand io.Reader, key *PublicKey, msg []byte) (der []byte, err error)

func Hexprint ¶

func Hexprint(in []byte)

func P256Sm2 ¶

func P256Sm2() elliptic.Curve

func Sign ¶

func Sign(rand io.Reader, priv *PrivateKey, msg []byte) (r, s *big.Int, err error)

func SignWithDigest ¶

func SignWithDigest(rand io.Reader, priv *PrivateKey, digest []byte) (r, s *big.Int, err error)

func Test1 ¶

func Test1()

func TestP256_Point ¶

func TestP256_Point()

func Test_amd64 ¶

func Test_amd64()

func Test_p256Func ¶

func Test_p256Func()

func Test_p256InternalFunc ¶

func Test_p256InternalFunc()

func Uint64ToAffine ¶

func Uint64ToAffine(in []uint64) (x, y *big.Int)

func Verify ¶

func Verify(pub *PublicKey, msg []byte, r, s *big.Int) bool

func VerifyById ¶

func VerifyById(pub *PublicKey, msg, id []byte, r, s *big.Int) bool

func VerifyWithDigest ¶

func VerifyWithDigest(pub *PublicKey, digest []byte, r, s *big.Int) bool

Types ¶

type EncData ¶

type EncData struct {
	X    *big.Int
	Y    *big.Int
	Hash []byte
	C2   []byte
}

sm2 enc structure in asn1

type PrivateKey ¶

type PrivateKey struct {
	PublicKey
	D *big.Int
}

func GenerateKey ¶

func GenerateKey(rand io.Reader) (*PrivateKey, error)

func (*PrivateKey) Decrypt ¶

func (key *PrivateKey) Decrypt(rand io.Reader, msg []byte, opts crypto.DecrypterOpts) (plaintext []byte, err error)

func (*PrivateKey) Public ¶

func (priv *PrivateKey) Public() crypto.PublicKey

The SM2's private key contains the public key

func (*PrivateKey) Sign ¶

func (priv *PrivateKey) Sign(rand io.Reader, msg []byte, opts crypto.SignerOpts) ([]byte, error)

func (*PrivateKey) SignWithDigest ¶

func (priv *PrivateKey) SignWithDigest(rand io.Reader, digest []byte, opts crypto.SignerOpts) ([]byte, error)

type PublicKey ¶

type PublicKey struct {
	elliptic.Curve
	X, Y *big.Int
}

func (*PublicKey) Verify ¶

func (pub *PublicKey) Verify(msg []byte, sign []byte) bool

func (*PublicKey) VerifyWithDigest ¶

func (pub *PublicKey) VerifyWithDigest(digest []byte, sign []byte) bool

Source Files ¶

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