private byte[] Transmit(byte[] send)
{
try
{
reader.Reconnect(SCardShareMode.Shared, SCardProtocol.Any, SCardReaderDisposition.Leave);
}
catch (NoSmartcardException)
{
return(null);
}
byte[] recv = new byte[1024];
int recvLength = reader.Transmit(send, recv);
recv = recv.Where((val, idx) => idx < recvLength).ToArray();
Console.WriteLine(string.Join("", send.Select(val => $"{val:x02}")));
Console.WriteLine(string.Join("", recv.Select(val => $"{val:x02}")));
if (!(recv[recv.Length - 2] == 0x90 && recv[recv.Length - 1] == 0x00))
{
return(null);
}
var response = recv.Where((val, idx) => 1 <= idx && idx < recv.Length - 2).ToArray();
return(response);
}
/// <summary>
/// Extension method to SmartCardConnection class similar to Transmit asyc method, however it accepts PCSC SDK commands.
/// </summary>
/// <param name="apduCommand">
/// APDU command object to send to the ICC
/// </param>
/// <param name="reader">
/// SmartCardConnection object
/// </param>
/// <returns>APDU response object of type defined by the APDU command object</returns>
public static Iso7816.ApduResponse Transceive(this ICardReader reader, Iso7816.ApduCommand apduCommand)
{
Iso7816.ApduResponse apduRes = Activator.CreateInstance(apduCommand.ApduResponseType) as Iso7816.ApduResponse;
byte[] resp = new byte[256];
int bytesReceived = reader.Transmit(apduCommand.ToByteArray(), resp);
Array.Resize(ref resp, bytesReceived);
apduRes.ExtractResponse(resp);
return(apduRes);
}
