public ActionResult Decifrar(string Key, string ToUser)
        {
            var User       = new Users();
            var messages   = User.GetMessages();
            var StringList = new List <string>();
            var ToRList    = new List <string>();

            foreach (MessagesElements elements in messages)
            {
                if ((elements.Transmitter == Request.Cookies["User"]["username"]) && (elements.Reciever == ToUser))
                {
                    StringList.Add(elements.text);
                    ToRList.Add("1");
                }
                else
                {
                    if ((elements.Transmitter == ToUser) && (elements.Reciever == Request.Cookies["User"]["username"]))
                    {
                        StringList.Add(elements.text);
                        ToRList.Add("0");
                    }
                }
            }
            //Decifrar cada mensaje con la llave que se recibiĆ³
            SDES DecifradoSDES = new SDES();
            var  P10           = "8537926014";
            var  P8            = "79358216";
            var  P4            = "0321";
            var  EP            = "01323210";
            var  IP            = "63572014";
            var  ReverseIP     = DecifradoSDES.GenerarIPInverso(IP);
            //generar claves
            var resultanteLS1 = DecifradoSDES.GenerarLS1(Key, P10);
            var K1            = DecifradoSDES.GenerarK1(resultanteLS1, P8);
            var K2            = DecifradoSDES.GenerarK2(resultanteLS1, P8);
            var BinaryList    = DecifradoSDES.LecutraArchivoDecifrar(StringList);
            var MessagesList  = new List <MessagesElements>();
            var cifrar        = false;
            var counter       = 0;

            foreach (List <string> list in BinaryList)
            {
                var Message  = new MessagesElements();
                var response = string.Empty;
                foreach (string binary in list)
                {
                    byte bytefinal = DecifradoSDES.CifrarODecifrar(binary, IP, EP, K1, P4, K2, ReverseIP, cifrar);
                    response += (char)bytefinal;
                }
                Message.Transmitter = ToRList[counter] == "1" ? Request.Cookies["User"]["username"] : ToUser;
                Message.Reciever    = ToRList[counter] == "1" ? ToUser : Request.Cookies["User"]["username"];
                Message.text        = response;
                MessagesList.Add(Message);
                counter++;
            }
            return(View(MessagesList));
        }
Example #2
0
        public ActionResult Cifrar(string Key, string message, string ToUser)
        {
            SDES cifradoSDES = new SDES();
            var  P10         = "8537926014";
            var  P8          = "79358216";
            var  P4          = "0321";
            var  EP          = "01323210";
            var  IP          = "63572014";
            var  ReverseIP   = cifradoSDES.GenerarIPInverso(IP);
            //generar claves
            var resultanteLS1 = cifradoSDES.GenerarLS1(Key, P10);
            var K1            = cifradoSDES.GenerarK1(resultanteLS1, P8);
            var K2            = cifradoSDES.GenerarK2(resultanteLS1, P8);
            //cifrar
            var BinaryList = cifradoSDES.LecturaArchivo(message);
            //var byteList = new List<byte>();
            var ciphertext = string.Empty;
            var cifrar     = true;

            foreach (string binary in BinaryList)
            {
                byte bytefinal = cifradoSDES.CifrarODecifrar(binary, IP, EP, K1, P4, K2, ReverseIP, cifrar);
                ciphertext += (char)bytefinal;
            }
            //enviar el texto
            MessagesElements elemento = new MessagesElements();

            elemento.Transmitter = Request.Cookies["User"]["username"];
            elemento.Reciever    = ToUser;
            elemento.text        = ciphertext;
            using (var client = new HttpClient())
            {
                client.BaseAddress = new Uri("http://localhost:58992/");
                var postjob = client.PostAsync("api/Messages", new StringContent(new JavaScriptSerializer().Serialize(elemento), Encoding.UTF8, "application/json"));
                postjob.Wait();
            }
            mensajeValido = 1;
            return(RedirectToAction("Index"));
        }