Exemplo n.º 1
0
 public override bool PortDataRecv(CMessage sSend, CRecvBuff cRecv)
 {
     try
     {
         base.PortDataRecv(sSend, cRecv);
         string sRecv = new ASCIIEncoding().GetString(cRecv.bRecvBuff, 0, cRecv.iRecvLen);
         int    iMark = sRecv.IndexOf(Address);
         if (iMark >= 0)
         {
             int    iFF    = sRecv.IndexOf('\r', iMark);
             string sValue = sRecv.Substring(iMark + 6, iFF - iMark - 6);
             lock (this)
             {
                 cRecv.DelBuff(iFF + 3);
             }
             CommStateE         = ECommSatate.Normal;
             present_MsgFailRep = 0;
             present_DevFailNum = 0;
             present_DevFailCyc = 0;
             return(GetVarValue(sSend, sValue));
         }
         return(false);
     }
     catch (Exception ex)
     {
         return(false);
     }
 }
Exemplo n.º 2
0
        public static string Decrypt(string Data, byte[] Key, byte[] IV)
        {
            try
            {
                MemoryStream msDecrypt = new MemoryStream(Convert.FromBase64String(Data));

                // Create a CryptoStream using the MemoryStream
                // and the passed key and initialization vector (IV).
                CryptoStream csDecrypt = new CryptoStream(msDecrypt,
                                                          new TripleDESCryptoServiceProvider().CreateDecryptor(Key, IV),
                                                          CryptoStreamMode.Read);

                // Create buffer to hold the decrypted data.
                byte[] fromEncrypt = new byte[Data.Length];

                // Read the decrypted data out of the crypto stream
                // and place it into the temporary buffer.
                csDecrypt.Read(fromEncrypt, 0, fromEncrypt.Length);

                //Convert the buffer into a string and return it.
                string ReturnValue = new ASCIIEncoding().GetString(fromEncrypt);
                if (ReturnValue.Contains("\0\0\0"))
                {
                    ReturnValue = ReturnValue.Remove(ReturnValue.IndexOf("\0\0\0"));
                }
                return(ReturnValue);
            }
            catch (CryptographicException e)
            {
                Console.WriteLine("A Cryptographic error occurred: {0}", e.Message);
                return(null);
            }
        }
Exemplo n.º 3
0
 public static string ToAsciiString(this byte[] array)
 {
     lock (ToStringExtensions.lockByteToString)
     {
         if (array == null)
         {
             return(string.Empty);
         }
         string str    = new ASCIIEncoding().GetString(array, 0, array.Length);
         int    length = str.IndexOf(char.MinValue);
         if (length >= 0)
         {
             str = str.Substring(0, length);
         }
         return(str.TrimEnd(' '));
     }
 }
Exemplo n.º 4
0
        public static CategorizeInfo SortPacket(PcapDotNet.Packets.Packet raw)
        {
            // Get a packet from raw data.
            // Be a little lazy and assume that only Ethernet DLL protcol is used.
            EthernetDatagram packet = raw.Ethernet;

            CategorizeInfo info = new CategorizeInfo
            {
                NetworkLayer     = new Dictionary <string, long>(),
                TransportLayer   = new Dictionary <string, long>(),
                ApplicationLayer = new Dictionary <string, long>()
            };

            #region Network Layer
            switch (packet.EtherType)
            {
            case EthernetType.Arp:
                info.NetworkLayer.Increment("ARP");
                break;

            case EthernetType.IpV4:
                info.NetworkLayer.Increment("IPv4");
                break;

            case EthernetType.IpV6:
                info.NetworkLayer.Increment("IPv6");
                break;

            default:
                info.NetworkLayer.Increment("Others");
                break;
            }
            #endregion

            #region Transport Layer
            IpV4Datagram ipv4pk = null;
            if (packet.EtherType == EthernetType.IpV4)
            {
                ipv4pk = packet.IpV4;
                switch (ipv4pk.Protocol)
                {
                case IpV4Protocol.Tcp:
                    info.TransportLayer.Increment("TCP");
                    break;

                case IpV4Protocol.Udp:
                    info.TransportLayer.Increment("UDP");
                    break;

                default:
                    info.TransportLayer.Increment("Others");
                    break;
                }
            }
            #endregion

            #region Application Layer
            if (ipv4pk != null)
            {
                if (ipv4pk.Protocol == IpV4Protocol.Tcp)
                {
                    TcpDatagram tcpPk = ipv4pk.Tcp;
                    string      s     = new ASCIIEncoding().GetString(tcpPk.Payload.ToArray());
                    if (s.IndexOf("HTTP") > 0)
                    {  // Found HTTP head
                        info.ApplicationLayer.Increment("HTTP Header");
                    }
                    else
                    {
                        info.ApplicationLayer.Increment("Others");
                    }
                }
            }
            #endregion

            return(info);
        }
Exemplo n.º 5
0
        public long GetUID(ref byte[] UID)
        {
            long _result      = 0;
            bool cardInserted = false;


            IntPtr _CardContext   = IntPtr.Zero;
            IntPtr ActiveProtocol = IntPtr.Zero;

            // Establish Reader context:
            if (this._ReaderContext == IntPtr.Zero)
            {
                _result = SCardEstablishContext(2, IntPtr.Zero, IntPtr.Zero, out this._ReaderContext);

                #region Get List of Available Readers

                uint pcchReaders = 0;
                int  nullindex   = -1;
                char nullchar    = (char)0;

                // First call with 3rd parameter set to null gets readers buffer length.
                _result = SCardListReaders(this._ReaderContext, null, null, ref pcchReaders);

                byte[] mszReaders = new byte[pcchReaders];

                // Fill readers buffer with second call.
                _result = SCardListReaders(this._ReaderContext, null, mszReaders, ref pcchReaders);

                // Populate List with readers.
                string currbuff = new ASCIIEncoding().GetString(mszReaders);
                int    len      = (int)pcchReaders;

                if (len > 0)
                {
                    while (currbuff[0] != nullchar)
                    {
                        nullindex = currbuff.IndexOf(nullchar);                           // Get null end character.
                        string reader = currbuff.Substring(0, nullindex);
                        this._AvailableReaders.Add(reader);
                        len      = len - (reader.Length + 1);
                        currbuff = currbuff.Substring(nullindex + 1, len);
                    }
                }

                #endregion

                // Select the first reader:
                this._ReaderName = this._AvailableReaders[0];
            }

            try
            {
                //Check if there is a Card in the reader:

                //dwShareMode: SCARD_SHARE_SHARED = 0x00000002 - This application will allow others to share the reader
                //dwPreferredProtocols: SCARD_PROTOCOL_T0 - Use the T=0 protocol (value = 0x00000001)

                if (this._ReaderContext != IntPtr.Zero)
                {
                    _result = SCardConnect(this._ReaderContext, this._ReaderName, 0x00000002, 0x00000001, ref _CardContext, ref ActiveProtocol);
                    if (_result == 0)
                    {
                        cardInserted = true;

                        SCARD_IO_REQUEST request = new SCARD_IO_REQUEST()
                        {
                            dwProtocol  = (uint)ActiveProtocol,
                            cbPciLength = (uint)System.Runtime.InteropServices.Marshal.SizeOf(typeof(SCARD_IO_REQUEST))
                        };

                        byte[] sendBytes = new byte[] { 0xFF, 0xCA, 0x00, 0x00, 0x00 };                         //<- get UID command for iClass cards
                        byte[] ret_Bytes = new byte[33];
                        uint   sendLen   = (uint)sendBytes.Length;
                        uint   ret_Len   = (uint)ret_Bytes.Length;

                        _result = SCardTransmit(_CardContext, ref request, ref sendBytes[0], sendLen, ref request, ret_Bytes, ref ret_Len);
                        if (_result == 0)
                        {
                            UID = ret_Bytes.Take(4).ToArray();                             //only take the first 8, the last 2 bytes are not part of the UID of the card
                            string dataOut = byteToHexa(UID, UID.Length, true).Trim();     //Devolver la respuesta en Hexadecimal
                        }
                    }
                }
            }
            finally
            {
                SCardDisconnect(_CardContext, 0);
                SCardReleaseContext(this._ReaderContext);
            }
            return(_result);
        }