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sm2: test decrypt error

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Sun Yimin 2022-12-06 10:11:02 +08:00 committed by GitHub
parent 97e419809e
commit ca18fb55f4
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 46 additions and 0 deletions
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46
sm2/sm2_test.go
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@ -224,6 +224,30 @@ func TestCiphertextASN12Plain(t *testing.T) {
}
}
func TestEncryptWithInfinitePublicKey(t *testing.T) {
pub := new(ecdsa.PublicKey)
pub.Curve = P256()
pub.X = big.NewInt(0)
pub.Y = big.NewInt(0)
_, err := Encrypt(rand.Reader, pub, []byte("sm2 encryption standard"), nil)
if err == nil {
t.Fatalf("should be failed")
}
}
func TestEncryptEmptyPlaintext(t *testing.T) {
priv, _ := GenerateKey(rand.Reader)
ciphertext, err := Encrypt(rand.Reader, &priv.PublicKey, nil, nil)
if err != nil || ciphertext != nil {
t.Fatalf("nil plaintext should return nil")
}
ciphertext, err = Encrypt(rand.Reader, &priv.PublicKey, []byte{}, nil)
if err != nil || ciphertext != nil {
t.Fatalf("empty plaintext should return nil")
}
}
func TestEncryptDecrypt(t *testing.T) {
priv, _ := GenerateKey(rand.Reader)
priv2, _ := ecdsa.GenerateKey(elliptic.P256(), rand.Reader)
@ -293,6 +317,28 @@ func TestEncryptDecrypt(t *testing.T) {
}
}
func TestInvalidCiphertext(t *testing.T) {
priv, _ := GenerateKey(rand.Reader)
tests := []struct {
name string
ciphertext []byte
}{
// TODO: Add test cases.
{errCiphertextTooShort.Error(), make([]byte, 65)},
{ErrDecryption.Error(), append([]byte{0x04}, make([]byte, 96)...)},
{ErrDecryption.Error(), append([]byte{0x04}, make([]byte, 97)...)},
{ErrDecryption.Error(), append([]byte{0x02}, make([]byte, 65)...)},
{ErrDecryption.Error(), append([]byte{0x30}, make([]byte, 97)...)},
{ErrDecryption.Error(), make([]byte, 97)},
}
for i, tt := range tests {
_, err := Decrypt(priv, tt.ciphertext)
if err.Error() != tt.name {
t.Fatalf("case %v, expected %v, got %v\n", i, tt.name, err.Error())
}
}
}
func TestSignVerify(t *testing.T) {
priv, _ := GenerateKey(rand.Reader)
tests := []struct {