Example #1
0
 public List <TLVObject> ReadInnerTlvTags()
 {
     using (var ms = new MemoryStream(Value))
         using (var reader = new TLVReader(ms)
         {
             RemoveEMVPadding = IsEMV
         })
         {
             return(reader.ReadTags());
         }
 }
Example #2
0
        public TLVObject SendAPDU(IAPDUMessage message, out ushort sw12)
        {
            using (var ms = new MemoryStream())
            {
                message.WriteRawData(ms);
                var dataToSend = ms.ToArray();

#if DEBUG
                System.Diagnostics.Debug.WriteLine(
                    string.Format("C-APDU => {0}", string.Join(" ", dataToSend.Select(x => x.ToString("X2")))));
#endif

                var resp = SendCommand(dataToSend);

#if DEBUG
                System.Diagnostics.Debug.WriteLine(
                    string.Format("R-APDU <= {0}", string.Join(" ", resp.Select(x => x.ToString("X2")))));
#endif

                if (resp == null || resp.Length < 2)
                {
                    throw new InvalidOperationException("APDU Response is null or empty");
                }

                sw12 = (ushort)((ushort)(resp[resp.Length - 2] << 8) | (ushort)(resp[resp.Length - 1]));
                if (resp.Length == 2)
                {
                    return(null);
                }

                using (var respMs = new MemoryStream(resp))
                    using (var reader = new TLVReader(respMs)
                    {
                        RemoveEMVPadding = IsEmv
                    })
                    {
                        var res = reader.PeekTagAndLength();
                        if (res.Item2 > resp.Length - 2)
                        {
                            System.Diagnostics.Debug.WriteLine("Too short result, readjusting length");
                            message.ExpectedResponseLength = res.Item2 + (int)respMs.Position;

                            return(SendAPDU(message, out sw12));
                        }
                        respMs.Position = 0;
                        return(reader.ReadTags().First());
                    }
            }
        }