使用Golang实现Sm2加解密的代码详解

func Dome() {
	//需要加密的参数
	dataArray := []interface{}{"object1", "object2"}
	//序列化为JSON字符串
	dataBytes, _ := json.Marshal(dataArray)

	// 假设这是你的SM2公钥的十六进制字符串表示
	publicKeyHex := ""
	
	//DecodeString返回由十六进制字符串s表示的字节
	keypoints, _ := hex.DecodeString(publicKeyHex)

	//检查是否有效并返回PublicKey
	testkey, err := sm2.NewPublicKey(keypoints)
	if err != nil {
		fmt.Printf("fail to new public key %v \n", err)
	}

	//两种加密方式
	//ciphertext, err := sm2.EncryptASN1(rand.Reader, testkey, dataBytes)
	ciphertext, err := sm2.Encrypt(rand.Reader, testkey, dataBytes, nil)
	if err != nil {
		fmt.Fprintf(os.Stderr, "Error from encryption: %s\n", err)
		return
	}
	fmt.Printf("Ciphertext: %x \n", ciphertext)
}

func Dome() {
	//私钥
	privateKey := ``
	
	//解密
	ciphertext, _ := hex.DecodeString(`加密出来字符串`)
	
	privKey, _ := hex.DecodeString(privateKey)
	
	testkey, err := sm2.NewPrivateKey(privKey)
	if err != nil {
		fmt.Printf("fail to new private key %v \n", err)
	}

	plaintext, err := testkey.Decrypt(nil, ciphertext, nil)
	if err != nil {
		fmt.Fprintf(os.Stderr, "Error1 from decryption: %s \n", err)
		return
	}
	fmt.Printf("Plaintext: %s \n", string(plaintext))
}