RuoVea.SM 10.0.0.3

RuoVea.ExCrypt

介绍

国密 SM2 SM3 SM4 加密算法、字符串加密拓展

使用示例

1. SM2 非对称加密示例

// 生成SM2密钥对
var (publicKey, privateKey) = SMEncryption.SM2GenerateKeyPair();
Console.WriteLine($"公钥: {publicKey}");
Console.WriteLine($"私钥: {privateKey}");

// SM2加密
string plainText = "Hello, SM2加密测试!";
string encrypted = SMEncryption.SM2Encrypt(plainText, publicKey);
Console.WriteLine($"加密结果: {encrypted}");

// SM2解密
string decrypted = SMEncryption.SM2Decrypt(encrypted, privateKey);
Console.WriteLine($"解密结果: {decrypted}");

2. SM3 哈希算法示例

// SM3哈希计算
string data = "Hello, SM3哈希测试!";
string hash = SMEncryption.SM3Hash(data);
Console.WriteLine($"SM3哈希值: {hash}");

// 验证哈希
bool isValid = SMEncryption.SM3Verify(data, hash);
Console.WriteLine($"哈希验证结果: {isValid}");

3. SM4 对称加密示例

// 生成SM4密钥和IV
string sm4Key = SMEncryption.SM4GenerateKey(true);  // 16进制格式
string sm4IV = SMEncryption.SM4GenerateIV(true);    // 16进制格式
Console.WriteLine($"SM4密钥: {sm4Key}");
Console.WriteLine($"SM4 IV: {sm4IV}");

// SM4 ECB模式加密解密
string text = "Hello, SM4 ECB模式测试!";
string ecbEncrypted = SMEncryption.SM4EncryptECB(text, sm4Key, true);
Console.WriteLine($"ECB加密结果: {ecbEncrypted}");
string ecbDecrypted = SMEncryption.SM4DecryptECB(ecbEncrypted, sm4Key, true);
Console.WriteLine($"ECB解密结果: {ecbDecrypted}");

// SM4 CBC模式加密解密
string cbcEncrypted = SMEncryption.SM4EncryptCBC(text, sm4Key, sm4IV, true);
Console.WriteLine($"CBC加密结果: {cbcEncrypted}");
string cbcDecrypted = SMEncryption.SM4DecryptCBC(cbcEncrypted, sm4Key, sm4IV, true);
Console.WriteLine($"CBC解密结果: {cbcDecrypted}");

// 使用默认密钥的简化方式
string defaultEncrypted = SMEncryption.SM4EncryptECB(text);
Console.WriteLine($"默认密钥加密结果: {defaultEncrypted}");
string defaultDecrypted = SMEncryption.SM4DecryptECB(defaultEncrypted);
Console.WriteLine($"默认密钥解密结果: {defaultDecrypted}");

4. 综合使用场景示例

// 场景：使用SM2加密SM4密钥进行安全传输

// 接收方生成SM2密钥对
var (receiverPubKey, receiverPrivKey) = SMEncryption.SM2GenerateKeyPair();

// 发送方生成SM4会话密钥
string sessionKey = SMEncryption.SM4GenerateKey(true);
string sessionIV = SMEncryption.SM4GenerateIV(true);

// 发送方用SM2加密SM4密钥
string encryptedKey = SMEncryption.SM2Encrypt(sessionKey, receiverPubKey);

// 发送方用SM4加密实际数据
string sensitiveData = "这是一条敏感信息";
string encryptedData = SMEncryption.SM4EncryptCBC(sensitiveData, sessionKey, sessionIV, true);

// 接收方先解密SM4密钥
string decryptedKey = SMEncryption.SM2Decrypt(encryptedKey, receiverPrivKey);

// 接收方再用SM4解密数据
string finalData = SMEncryption.SM4DecryptCBC(encryptedData, decryptedKey, sessionIV, true);

Console.WriteLine($"最终解密结果: {finalData}");