public byte[] EnPwd_UTF8(List <byte[]> data)
 {
     try
     {
         // StartWith <RSAKeyValue> EndWith </RSAKeyValue>
         return(RSAHelper.Encrypt_XML(data[0], Encoding.UTF8.GetString(data[1])));
     }
     catch (Exception)
     {
         return(Encoding.UTF8.GetBytes(""));
     }
 }