加密解密(源自Discuz!NT3.1)

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AES加密解密

   
    
    
    
    

    
    
 
    
 
    
     
     
     
     ///
    
 
    
 
    
     
     
     
      
    
 
    
 
    
     
     
     
     <summary>
    
 
    
 
    
     
     
     
      
 
    
 
    
 
    
     
     
     
     ///
    
 
    
 
    
     
     
     
      AES加密解密
 
    
 
    
 
    
     
     
     
     ///
    
 
    
 
    
     
     
     
      
    
 
    
 
    
     
     
     
     </summary>
    
 
    
 
    
     
     
     
      
    
 
    
 
    
     
     
     
     

    
 
    
 
    
     
     
     
      
    
 
    
 
    
     
     
     
     public
    
 
    
 
    
     
     
     
      
    
 
    
 
    
     
     
     
     class
    
 
    
 
    
     
     
     
      AES
 { 
 
    
 
    
 
    
     
     
     
     //
    
 
    
 
    
     
     
     
     默认密钥向量
    
 
    
 
    
     
     
     
     

    
 
    
 
    
     
     
     
      
    
 
    
 
    
     
     
     
     private
    
 
    
 
    
     
     
     
      
    
 
    
 
    
     
     
     
     static
    
 
    
 
    
     
     
     
      
    
 
    
 
    
     
     
     
     byte
    
 
    
 
    
     
     
     
     [] Keys 
    
 
    
 
    
     
     
     
     =
    
 
    
 
    
     
     
     
      { 
    
 
    
 
    
     
     
     
     0x41
    
 
    
 
    
     
     
     
     , 
    
 
    
 
    
     
     
     
     0x72
    
 
    
 
    
     
     
     
     , 
    
 
    
 
    
     
     
     
     0x65
    
 
    
 
    
     
     
     
     , 
    
 
    
 
    
     
     
     
     0x79
    
 
    
 
    
     
     
     
     , 
    
 
    
 
    
     
     
     
     0x6F
    
 
    
 
    
     
     
     
     , 
    
 
    
 
    
     
     
     
     0x75
    
 
    
 
    
     
     
     
     , 
    
 
    
 
    
     
     
     
     0x6D
    
 
    
 
    
     
     
     
     , 
    
 
    
 
    
     
     
     
     0x79
    
 
    
 
    
     
     
     
     , 
    
 
    
 
    
     
     
     
     0x53
    
 
    
 
    
     
     
     
     , 
    
 
    
 
    
     
     
     
     0x6E
    
 
    
 
    
     
     
     
     , 
    
 
    
 
    
     
     
     
     0x6F
    
 
    
 
    
     
     
     
     , 
    
 
    
 
    
     
     
     
     0x77
    
 
    
 
    
     
     
     
     , 
    
 
    
 
    
     
     
     
     0x6D
    
 
    
 
    
     
     
     
     , 
    
 
    
 
    
     
     
     
     0x61
    
 
    
 
    
     
     
     
     , 
    
 
    
 
    
     
     
     
     0x6E
    
 
    
 
    
     
     
     
     , 
    
 
    
 
    
     
     
     
     0x3F
    
 
    
 
    
     
     
     
      };

 
    
 
    
 
    
     
     
     
     public
    
 
    
 
    
     
     
     
      
    
 
    
 
    
     
     
     
     static
    
 
    
 
    
     
     
     
      
    
 
    
 
    
     
     
     
     string
    
 
    
 
    
     
     
     
      Encode(
    
 
    
 
    
     
     
     
     string
    
 
    
 
    
     
     
     
      encryptString, 
    
 
    
 
    
     
     
     
     string
    
 
    
 
    
     
     
     
      encryptKey)
 {
 encryptKey 
    
 
    
 
    
     
     
     
     =
    
 
    
 
    
     
     
     
      Utils.GetSubString(encryptKey, 
    
 
    
 
    
     
     
     
     32
    
 
    
 
    
     
     
     
     , 
    
 
    
 
    
     
     
     
     ""
    
 
    
 
    
     
     
     
     );
 encryptKey 
    
 
    
 
    
     
     
     
     =
    
 
    
 
    
     
     
     
      encryptKey.PadRight(
    
 
    
 
    
     
     
     
     32
    
 
    
 
    
     
     
     
     , 
    
 
    
 
    
     
     
     
     '
    
 
    
 
    
     
     
     
      
    
 
    
 
    
     
     
     
     '
    
 
    
 
    
     
     
     
     );

 RijndaelManaged rijndaelProvider 
    
 
    
 
    
     
     
     
     =
    
 
    
 
    
     
     
     
      
    
 
    
 
    
     
     
     
     new
    
 
    
 
    
     
     
     
      RijndaelManaged();
 rijndaelProvider.Key 
    
 
    
 
    
     
     
     
     =
    
 
    
 
    
     
     
     
      Encoding.UTF8.GetBytes(encryptKey.Substring(
    
 
    
 
    
     
     
     
     0
    
 
    
 
    
     
     
     
     , 
    
 
    
 
    
     
     
     
     32
    
 
    
 
    
     
     
     
     ));
 rijndaelProvider.IV 
    
 
    
 
    
     
     
     
     =
    
 
    
 
    
     
     
     
      Keys;
 ICryptoTransform rijndaelEncrypt 
    
 
    
 
    
     
     
     
     =
    
 
    
 
    
     
     
     
      rijndaelProvider.CreateEncryptor();
 
 
    
 
    
 
    
     
     
     
     byte
    
 
    
 
    
     
     
     
     [] inputData 
    
 
    
 
    
     
     
     
     =
    
 
    
 
    
     
     
     
      Encoding.UTF8.GetBytes(encryptString);
 
    
 
    
 
    
     
     
     
     byte
    
 
    
 
    
     
     
     
     [] encryptedData 
    
 
    
 
    
     
     
     
     =
    
 
    
 
    
     
     
     
      rijndaelEncrypt.TransformFinalBlock(inputData,
    
 
    
 
    
     
     
     
     0
    
 
    
 
    
     
     
     
     ,inputData.Length);

 
    
 
    
 
    
     
     
     
     return
    
 
    
 
    
     
     
     
      Convert.ToBase64String(encryptedData);
 }
 
 
    
 
    
 
    
     
     
     
     public
    
 
    
 
    
     
     
     
      
    
 
    
 
    
     
     
     
     static
    
 
    
 
    
     
     
     
      
    
 
    
 
    
     
     
     
     string
    
 
    
 
    
     
     
     
      Decode(
    
 
    
 
    
     
     
     
     string
    
 
    
 
    
     
     
     
      decryptString, 
    
 
    
 
    
     
     
     
     string
    
 
    
 
    
     
     
     
      decryptKey)
 {
 
    
 
    
 
    
     
     
     
     try
    
 
    
 
    
     
     
     
     
 {
 decryptKey 
    
 
    
 
    
     
     
     
     =
    
 
    
 
    
     
     
     
      Utils.GetSubString(decryptKey, 
    
 
    
 
    
     
     
     
     32
    
 
    
 
    
     
     
     
     , 
    
 
    
 
    
     
     
     
     ""
    
 
    
 
    
     
     
     
     );
 decryptKey 
    
 
    
 
    
     
     
     
     =
    
 
    
 
    
     
     
     
      decryptKey.PadRight(
    
 
    
 
    
     
     
     
     32
    
 
    
 
    
     
     
     
     , 
    
 
    
 
    
     
     
     
     '
    
 
    
 
    
     
     
     
      
    
 
    
 
    
     
     
     
     '
    
 
    
 
    
     
     
     
     );

 RijndaelManaged rijndaelProvider 
    
 
    
 
    
     
     
     
     =
    
 
    
 
    
     
     
     
      
    
 
    
 
    
     
     
     
     new
    
 
    
 
    
     
     
     
      RijndaelManaged();
 rijndaelProvider.Key 
    
 
    
 
    
     
     
     
     =
    
 
    
 
    
     
     
     
      Encoding.UTF8.GetBytes(decryptKey);
 rijndaelProvider.IV 
    
 
    
 
    
     
     
     
     =
    
 
    
 
    
     
     
     
      Keys;
 ICryptoTransform rijndaelDecrypt 
    
 
    
 
    
     
     
     
     =
    
 
    
 
    
     
     
     
      rijndaelProvider.CreateDecryptor();
 
 
    
 
    
 
    
     
     
     
     byte
    
 
    
 
    
     
     
     
     [] inputData 
    
 
    
 
    
     
     
     
     =
    
 
    
 
    
     
     
     
      Convert.FromBase64String(decryptString);
 
    
 
    
 
    
     
     
     
     byte
    
 
    
 
    
     
     
     
     [] decryptedData 
    
 
    
 
    
     
     
     
     =
    
 
    
 
    
     
     
     
      rijndaelDecrypt.TransformFinalBlock(inputData,
    
 
    
 
    
     
     
     
     0
    
 
    
 
    
     
     
     
     ,inputData.Length);

 
    
 
    
 
    
     
     
     
     return
    
 
    
 
    
     
     
     
      Encoding.UTF8.GetString(decryptedData);
 }
 
    
 
    
 
    
     
     
     
     catch
    
 
    
 
    
     
     
     
     
 {
 
    
 
    
 
    
     
     
     
     return
    
 
    
 
    
     
     
     
      
    
 
    
 
    
     
     
     
     ""
    
 
    
 
    
     
     
     
     ;
 }

 }

 }
   

   

   
    
    
    
    

 

 

DES加密解密

   
    
    
    
    

    
    
 
    
 
    
     
     
     
     ///
    
 
    
 
    
     
     
     
      
    
 
    
 
    
     
     
     
     <summary>
    
 
    
 
    
     
     
     
      
 
    
 
    
 
    
     
     
     
     ///
    
 
    
 
    
     
     
     
      DES加密解密
 
    
 
    
 
    
     
     
     
     ///
    
 
    
 
    
     
     
     
      
    
 
    
 
    
     
     
     
     </summary>
    
 
    
 
    
     
     
     
      
    
 
    
 
    
     
     
     
     

    
 
    
 
    
     
     
     
      
    
 
    
 
    
     
     
     
     public
    
 
    
 
    
     
     
     
      
    
 
    
 
    
     
     
     
     class
    
 
    
 
    
     
     
     
      DES
 { 
 
    
 
    
 
    
     
     
     
     //
    
 
    
 
    
     
     
     
     默认密钥向量
    
 
    
 
    
     
     
     
     

    
 
    
 
    
     
     
     
      
    
 
    
 
    
     
     
     
     private
    
 
    
 
    
     
     
     
      
    
 
    
 
    
     
     
     
     static
    
 
    
 
    
     
     
     
      
    
 
    
 
    
     
     
     
     byte
    
 
    
 
    
     
     
     
     [] Keys 
    
 
    
 
    
     
     
     
     =
    
 
    
 
    
     
     
     
      { 
    
 
    
 
    
     
     
     
     0x12
    
 
    
 
    
     
     
     
     , 
    
 
    
 
    
     
     
     
     0x34
    
 
    
 
    
     
     
     
     , 
    
 
    
 
    
     
     
     
     0x56
    
 
    
 
    
     
     
     
     , 
    
 
    
 
    
     
     
     
     0x78
    
 
    
 
    
     
     
     
     , 
    
 
    
 
    
     
     
     
     0x90
    
 
    
 
    
     
     
     
     , 
    
 
    
 
    
     
     
     
     0xAB
    
 
    
 
    
     
     
     
     , 
    
 
    
 
    
     
     
     
     0xCD
    
 
    
 
    
     
     
     
     , 
    
 
    
 
    
     
     
     
     0xEF
    
 
    
 
    
     
     
     
      };
 
 
    
 
    
 
    
     
     
     
     ///
    
 
    
 
    
     
     
     
      
    
 
    
 
    
     
     
     
     <summary>
    
 
    
 
    
     
     
     
     
 
    
 
    
 
    
     
     
     
     ///
    
 
    
 
    
     
     
     
      DES加密字符串
 
    
 
    
 
    
     
     
     
     ///
    
 
    
 
    
     
     
     
      
    
 
    
 
    
     
     
     
     </summary>
    
 
    
 
    
     
     
     
     
 
    
 
    
 
    
     
     
     
     ///
    
 
    
 
    
     
     
     
      
    
 
    
 
    
     
     
     
     <param name="encryptString">
    
 
    
 
    
     
     
     
     待加密的字符串
    
 
    
 
    
     
     
     
     </param>
    
 
    
 
    
     
     
     
     
 
    
 
    
 
    
     
     
     
     ///
    
 
    
 
    
     
     
     
      
    
 
    
 
    
     
     
     
     <param name="encryptKey">
    
 
    
 
    
     
     
     
     加密密钥,要求为8位
    
 
    
 
    
     
     
     
     </param>
    
 
    
 
    
     
     
     
     
 
    
 
    
 
    
     
     
     
     ///
    
 
    
 
    
     
     
     
      
    
 
    
 
    
     
     
     
     <returns>
    
 
    
 
    
     
     
     
     加密成功返回加密后的字符串,失败返回源串
    
 
    
 
    
     
     
     
     </returns>
    
 
    
 
    
     
     
     
     

    
 
    
 
    
     
     
     
      
    
 
    
 
    
     
     
     
     public
    
 
    
 
    
     
     
     
      
    
 
    
 
    
     
     
     
     static
    
 
    
 
    
     
     
     
      
    
 
    
 
    
     
     
     
     string
    
 
    
 
    
     
     
     
      Encode(
    
 
    
 
    
     
     
     
     string
    
 
    
 
    
     
     
     
      encryptString, 
    
 
    
 
    
     
     
     
     string
    
 
    
 
    
     
     
     
      encryptKey)
 {
 encryptKey
    
 
    
 
    
     
     
     
     =
    
 
    
 
    
     
     
     
     encryptKey.Substring(
    
 
    
 
    
     
     
     
     0
    
 
    
 
    
     
     
     
     , 
    
 
    
 
    
     
     
     
     8
    
 
    
 
    
     
     
     
     )； encryptKey 
    
 
    
 
    
     
     
     
     =
    
 
    
 
    
     
     
     
      encryptKey.PadRight(
    
 
    
 
    
     
     
     
     8
    
 
    
 
    
     
     
     
     , 
    
 
    
 
    
     
     
     
     '
    
 
    
 
    
     
     
     
      
    
 
    
 
    
     
     
     
     '
    
 
    
 
    
     
     
     
     );
 
    
 
    
 
    
     
     
     
     byte
    
 
    
 
    
     
     
     
     [] rgbKey 
    
 
    
 
    
     
     
     
     =
    
 
    
 
    
     
     
     
      Encoding.UTF8.GetBytes(encryptKey.Substring(
    
 
    
 
    
     
     
     
     0
    
 
    
 
    
     
     
     
     , 
    
 
    
 
    
     
     
     
     8
    
 
    
 
    
     
     
     
     ));
 
    
 
    
 
    
     
     
     
     byte
    
 
    
 
    
     
     
     
     [] rgbIV 
    
 
    
 
    
     
     
     
     =
    
 
    
 
    
     
     
     
      Keys;
 
    
 
    
 
    
     
     
     
     byte
    
 
    
 
    
     
     
     
     [] inputByteArray 
    
 
    
 
    
     
     
     
     =
    
 
    
 
    
     
     
     
      Encoding.UTF8.GetBytes(encryptString);
 DESCryptoServiceProvider dCSP 
    
 
    
 
    
     
     
     
     =
    
 
    
 
    
     
     
     
      
    
 
    
 
    
     
     
     
     new
    
 
    
 
    
     
     
     
      DESCryptoServiceProvider();
 MemoryStream mStream 
    
 
    
 
    
     
     
     
     =
    
 
    
 
    
     
     
     
      
    
 
    
 
    
     
     
     
     new
    
 
    
 
    
     
     
     
      MemoryStream();
 CryptoStream cStream 
    
 
    
 
    
     
     
     
     =
    
 
    
 
    
     
     
     
      
    
 
    
 
    
     
     
     
     new
    
 
    
 
    
     
     
     
      CryptoStream(mStream, dCSP.CreateEncryptor(rgbKey, rgbIV), CryptoStreamMode.Write);
 cStream.Write(inputByteArray, 
    
 
    
 
    
     
     
     
     0
    
 
    
 
    
     
     
     
     , inputByteArray.Length);
 cStream.FlushFinalBlock();
 
    
 
    
 
    
     
     
     
     return
    
 
    
 
    
     
     
     
      Convert.ToBase64String(mStream.ToArray());
 
 }

 
    
 
    
 
    
     
     
     
     ///
    
 
    
 
    
     
     
     
      
    
 
    
 
    
     
     
     
     <summary>
    
 
    
 
    
     
     
     
     
 
    
 
    
 
    
     
     
     
     ///
    
 
    
 
    
     
     
     
      DES解密字符串
 
    
 
    
 
    
     
     
     
     ///
    
 
    
 
    
     
     
     
      
    
 
    
 
    
     
     
     
     </summary>
    
 
    
 
    
     
     
     
     
 
    
 
    
 
    
     
     
     
     ///
    
 
    
 
    
     
     
     
      
    
 
    
 
    
     
     
     
     <param name="decryptString">
    
 
    
 
    
     
     
     
     待解密的字符串
    
 
    
 
    
     
     
     
     </param>
    
 
    
 
    
     
     
     
     
 
    
 
    
 
    
     
     
     
     ///
    
 
    
 
    
     
     
     
      
    
 
    
 
    
     
     
     
     <param name="decryptKey">
    
 
    
 
    
     
     
     
     解密密钥,要求为8位,和加密密钥相同
    
 
    
 
    
     
     
     
     </param>
    
 
    
 
    
     
     
     
     
 
    
 
    
 
    
     
     
     
     ///
    
 
    
 
    
     
     
     
      
    
 
    
 
    
     
     
     
     <returns>
    
 
    
 
    
     
     
     
     解密成功返回解密后的字符串,失败返源串
    
 
    
 
    
     
     
     
     </returns>
    
 
    
 
    
     
     
     
     

    
 
    
 
    
     
     
     
      
    
 
    
 
    
     
     
     
     public
    
 
    
 
    
     
     
     
      
    
 
    
 
    
     
     
     
     static
    
 
    
 
    
     
     
     
      
    
 
    
 
    
     
     
     
     string
    
 
    
 
    
     
     
     
      Decode(
    
 
    
 
    
     
     
     
     string
    
 
    
 
    
     
     
     
      decryptString, 
    
 
    
 
    
     
     
     
     string
    
 
    
 
    
     
     
     
      decryptKey)
 {
 
    
 
    
 
    
     
     
     
     try
    
 
    
 
    
     
     
     
     
 {
 decryptKey 
    
 
    
 
    
     
     
     
     =
    
 
    
 
    
     
     
     
      decryptKey.Substring(
    
 
    
 
    
     
     
     
     0
    
 
    
 
    
     
     
     
     , 
    
 
    
 
    
     
     
     
     8
    
 
    
 
    
     
     
     
     )；
 decryptKey 
    
 
    
 
    
     
     
     
     =
    
 
    
 
    
     
     
     
      decryptKey.PadRight(
    
 
    
 
    
     
     
     
     8
    
 
    
 
    
     
     
     
     , 
    
 
    
 
    
     
     
     
     '
    
 
    
 
    
     
     
     
      
    
 
    
 
    
     
     
     
     '
    
 
    
 
    
     
     
     
     );
 
    
 
    
 
    
     
     
     
     byte
    
 
    
 
    
     
     
     
     [] rgbKey 
    
 
    
 
    
     
     
     
     =
    
 
    
 
    
     
     
     
      Encoding.UTF8.GetBytes(decryptKey);
 
    
 
    
 
    
     
     
     
     byte
    
 
    
 
    
     
     
     
     [] rgbIV 
    
 
    
 
    
     
     
     
     =
    
 
    
 
    
     
     
     
      Keys;
 
    
 
    
 
    
     
     
     
     byte
    
 
    
 
    
     
     
     
     [] inputByteArray 
    
 
    
 
    
     
     
     
     =
    
 
    
 
    
     
     
     
      Convert.FromBase64String(decryptString);
 DESCryptoServiceProvider DCSP 
    
 
    
 
    
     
     
     
     =
    
 
    
 
    
     
     
     
      
    
 
    
 
    
     
     
     
     new
    
 
    
 
    
     
     
     
      DESCryptoServiceProvider();
 
 MemoryStream mStream 
    
 
    
 
    
     
     
     
     =
    
 
    
 
    
     
     
     
      
    
 
    
 
    
     
     
     
     new
    
 
    
 
    
     
     
     
      MemoryStream();
 CryptoStream cStream 
    
 
    
 
    
     
     
     
     =
    
 
    
 
    
     
     
     
      
    
 
    
 
    
     
     
     
     new
    
 
    
 
    
     
     
     
      CryptoStream(mStream, DCSP.CreateDecryptor(rgbKey, rgbIV), CryptoStreamMode.Write);
 cStream.Write(inputByteArray, 
    
 
    
 
    
     
     
     
     0
    
 
    
 
    
     
     
     
     , inputByteArray.Length);
 cStream.FlushFinalBlock();
 
    
 
    
 
    
     
     
     
     return
    
 
    
 
    
     
     
     
      Encoding.UTF8.GetString(mStream.ToArray());
 }
 
    
 
    
 
    
     
     
     
     catch
    
 
    
 
    
     
     
     
     
 {
 
    
 
    
 
    
     
     
     
     return
    
 
    
 
    
     
     
     
      
    
 
    
 
    
     
     
     
     ""
    
 
    
 
    
     
     
     
     ;
 } 
 }
 }