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This commit is contained in:
Emman 2021-12-02 12:57:01 +08:00
parent 78e22c4df2
commit a7921d9513
2 changed files with 10 additions and 10 deletions
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16
sm2/sm2.go
View File

@ -55,29 +55,29 @@ const (
MarshalMixed MarshalMixed
) )
type cipherTextSplicingOrder byte type ciphertextSplicingOrder byte
const ( const (
C1C3C2 cipherTextSplicingOrder = iota C1C3C2 ciphertextSplicingOrder = iota
C1C2C3 C1C2C3
) )
// EncrypterOpts encryption options // EncrypterOpts encryption options
type EncrypterOpts struct { type EncrypterOpts struct {
PointMarshalMode pointMarshalMode PointMarshalMode pointMarshalMode
CipherTextSplicingOrder cipherTextSplicingOrder CiphertextSplicingOrder ciphertextSplicingOrder
} }
// DecrypterOpts decryption options // DecrypterOpts decryption options
type DecrypterOpts struct { type DecrypterOpts struct {
CipherTextSplicingOrder cipherTextSplicingOrder CipherTextSplicingOrder ciphertextSplicingOrder
} }
func NewEncrypterOpts(marhsalMode pointMarshalMode, splicingOrder cipherTextSplicingOrder) *EncrypterOpts { func NewEncrypterOpts(marhsalMode pointMarshalMode, splicingOrder ciphertextSplicingOrder) *EncrypterOpts {
return &EncrypterOpts{marhsalMode, splicingOrder} return &EncrypterOpts{marhsalMode, splicingOrder}
} }
func NewDecrypterOpts(splicingOrder cipherTextSplicingOrder) *DecrypterOpts { func NewDecrypterOpts(splicingOrder ciphertextSplicingOrder) *DecrypterOpts {
return &DecrypterOpts{splicingOrder} return &DecrypterOpts{splicingOrder}
} }
@ -285,7 +285,7 @@ func Encrypt(random io.Reader, pub *ecdsa.PublicKey, msg []byte, opts *Encrypter
//A7, C3 = hash(x2||M||y2) //A7, C3 = hash(x2||M||y2)
c3 := calculateC3(curve, x2, y2, msg) c3 := calculateC3(curve, x2, y2, msg)
if opts.CipherTextSplicingOrder == C1C3C2 { if opts.CiphertextSplicingOrder == C1C3C2 {
// c1 || c3 || c2 // c1 || c3 || c2
return append(append(c1, c3...), c2...), nil return append(append(c1, c3...), c2...), nil
} }
@ -369,7 +369,7 @@ func decrypt(priv *PrivateKey, ciphertext []byte, opts *DecrypterOpts) ([]byte,
return msg, nil return msg, nil
} }
func AdjustCipherTextSplicingOrder(ciphertext []byte, from, to cipherTextSplicingOrder) ([]byte, error) { func AdjustCipherTextSplicingOrder(ciphertext []byte, from, to ciphertextSplicingOrder) ([]byte, error) {
curve := P256() curve := P256()
if from == to { if from == to {
return ciphertext, nil return ciphertext, nil

4
sm2/sm2_test.go
View File

@ -35,8 +35,8 @@ func Test_SplicingOrder(t *testing.T) {
tests := []struct { tests := []struct {
name string name string
plainText string plainText string
from cipherTextSplicingOrder from ciphertextSplicingOrder
to cipherTextSplicingOrder to ciphertextSplicingOrder
}{ }{
// TODO: Add test cases. // TODO: Add test cases.
{"less than 32 1", "encryption standard", C1C2C3, C1C3C2}, {"less than 32 1", "encryption standard", C1C2C3, C1C3C2},