public static byte[] Encode(byte[] data)
        {
            byte[] byKey = KEY_64;
            byte[] byIV = IV_64;
            DESCryptoServiceProvider cryptoProvider = new DESCryptoServiceProvider();
            int i = cryptoProvider.KeySize;
            MemoryStream ms = new MemoryStream();
            CryptoStream cst = new CryptoStream(ms, cryptoProvider.CreateEncryptor(byKey, byIV), CryptoStreamMode.Write);
            cst.Write(data, 0, data.Length);
            cst.FlushFinalBlock();

            byte[] buffer = ms.GetBuffer();
            return buffer;
         }

      public static byte[] Decode(byte[] data)
        {
            byte[] byKey = KEY_64;
            byte[] byIV = IV_64;
            byte[] byEnc;
            byEnc = data;
            DESCryptoServiceProvider cryptoProvider = new DESCryptoServiceProvider();
            MemoryStream ms = new MemoryStream();
            CryptoStream cst = new CryptoStream(ms, cryptoProvider.CreateDecryptor(byKey, byIV), CryptoStreamMode.Read);
            cst.Read(byEnc, 0, (int)byEnc.Length);
            cst.FlushFinalBlock();
            byte[] buffer = new byte[ms.Length];
            ms.Read(buffer, 0, (int)ms.Length);
            return buffer;
       }