#region RijndaelManaged加密

         /// <summary>

         /// 加密数据

         /// </summary>

         /// <param name="Text">要加密的内容</param>

         /// <param name="sKey">key，必须为32位</param>

         /// <returns></returns>

         public static string RiEncrypt(string Text, string sKey)

         {

             byte[] keyArray = UTF8Encoding.UTF8.GetBytes(sKey);

              //TripleDESCryptoServiceProvider

             RijndaelManaged encryption = new RijndaelManaged();

             encryption.Key = keyArray;

             encryption.Mode = CipherMode.ECB;

             encryption.Padding = PaddingMode.PKCS7;

             ICryptoTransform cTransform = encryption.CreateEncryptor();

             byte[] _EncryptArray = UTF8Encoding.UTF8.GetBytes(Text);

             byte[] resultArray = cTransform.TransformFinalBlock(_EncryptArray, , _EncryptArray.Length);

             return Convert.ToBase64String(resultArray, , resultArray.Length);

         }

         #endregion

         #region =======RijndaelManaged解密========

         /// <summary>

         /// 解密数据

         /// </summary>

         /// <param name="Text"></param>

         /// <param name="sKey"></param>

         /// <returns></returns>

         public static string RiDecrypt(string Text, string sKey)

         {

             byte[] keyArray = UTF8Encoding.UTF8.GetBytes(sKey);

             RijndaelManaged decipher = new RijndaelManaged();

             decipher.Key = keyArray;

             decipher.Mode = CipherMode.ECB;

             decipher.Padding = PaddingMode.PKCS7;

             ICryptoTransform cTransform = decipher.CreateDecryptor();

             byte[] _EncryptArray = Convert.FromBase64String(Text);

             byte[] resultArray = cTransform.TransformFinalBlock(_EncryptArray, , _EncryptArray.Length);

             return UTF8Encoding.UTF8.GetString(resultArray);

         }

         #endregion