js加密，c#解密

目录

• • js加密
  • c#解密
  • c#加密
  • js解密

js加密

    async function encryptText(plaintext) {
      // 将文本转换为ArrayBuffer
      const textEncoder = new TextEncoder();
      const dataBuffer = textEncoder.encode(plaintext);

       // 密钥和初始化向量，应该是一个安全的随机值
       const key = '123456789012345678901234567890ab'; // 32字节密钥
      const iv = '1234567890123456'; // 16字节初始化向量

      // 将密钥和初始化向量转换为ArrayBuffer
      const keyBuffer = new Uint8Array(key.split('').map(c => c.charCodeAt(0)));
      const ivBuffer = new Uint8Array(iv.split('').map(c => c.charCodeAt(0)));

      // 使用AES-CBC算法和PKCS7填充
      const cryptoKey = await window.crypto.subtle.importKey(
        'raw',
        keyBuffer,
        { name: 'AES-CBC', length: 256 },
        false,
        ['encrypt']
      );

      // 加密数据
      const encrypted = await window.crypto.subtle.encrypt(
        { name: 'AES-CBC', iv: ivBuffer },
        cryptoKey,
        dataBuffer
      );

      // 将加密后的数据转换为Base64字符串
      const encryptedArray = new Uint8Array(encrypted);
      return btoa(String.fromCharCode(...encryptedArray));
    }

c#解密

        public string DecryptAes( string encryptedData, string key,string iv)
        {
            // 转换为字节数组
            byte[] encryptedBytes = Convert.FromBase64String(encryptedData);

            // 创建解密器
            using (Aes aes = Aes.Create())
            {
                aes.Key = Encoding.UTF8.GetBytes(key);
                aes.IV = Encoding.UTF8.GetBytes(iv);
                aes.Mode = CipherMode.CBC;
                aes.Padding = PaddingMode.PKCS7;

                // 创建解密器
                ICryptoTransform decryptor = aes.CreateDecryptor(aes.Key, aes.IV);

                // 解密
                byte[] decryptedBytes = decryptor.TransformFinalBlock(encryptedBytes, 0, encryptedBytes.Length);

                // 输出解密后的数据
                return Encoding.UTF8.GetString(decryptedBytes);
            }
        }

c#加密

        public string EncryptAes(string content, string key, string iv)
        {
            // 转换为字节数组
            byte[] contentBytes = Encoding.UTF8.GetBytes(content);

            // 创建解密器
            using (Aes aes = Aes.Create())
            {
                aes.Key = Encoding.UTF8.GetBytes(key);
                aes.IV = Encoding.UTF8.GetBytes(iv);
                aes.Mode = CipherMode.CBC;
                aes.Padding = PaddingMode.PKCS7;

                // 创建解密器
                ICryptoTransform decryptor = aes.CreateEncryptor(aes.Key, aes.IV);

                // 解密
                byte[] encryptedBytes = decryptor.TransformFinalBlock(contentBytes, 0, contentBytes.Length);

                // 输出解密后的数据
                return Convert.ToBase64String(encryptedBytes);
            }
        }

js解密

  async function decryptText(ciphertext) {
    // 密钥和初始化向量，应该是一个安全的随机值
    const key = '123456789012345678901234567890ab'; // 32字节密钥
    const iv = '1234567890123456'; // 16字节初始化向量

    // 将密钥和初始化向量转换为ArrayBuffer
    const keyBuffer = new Uint8Array(key.split('').map(c => c.charCodeAt(0)));
    const ivBuffer = new Uint8Array(iv.split('').map(c => c.charCodeAt(0)));

    // 将Base64字符串转换为ArrayBuffer
    const encryptedArray = new Uint8Array(atob(ciphertext).split('').map(c => c.charCodeAt(0)));

    // 导入密钥
    const cryptoKey = await window.crypto.subtle.importKey(
      'raw',
      keyBuffer,
      { name: 'AES-CBC', length: 256 },
      false,
      ['decrypt']
    );

    // 解密数据
    const decrypted = await window.crypto.subtle.decrypt(
      { name: 'AES-CBC', iv: ivBuffer },
      cryptoKey,
      encryptedArray
    );

    // 将解密后的数据转换为文本
    const textDecoder = new TextDecoder();
    return textDecoder.decode(decrypted);
  }