/// <summary>
/// Will try to connect to _connectedReader and read the card.
/// </summary>
/// <returns>Either the data from the card or the error message. Or if 'uidOnly' is true, just the UID prefixed with 'UID^' and ending with '^'</returns>
public string ReadCard(bool uidOnly = false)
{
SCardContext context = new SCardContext();
context.Establish(SCardScope.System);
SCardReader reader = new SCardReader(context);
SCardError result = reader.Connect(_connectedReader, SCardShareMode.Shared, SCardProtocol.Any);
if (result != SCardError.Success)
{
context.Dispose();
reader.Dispose();
return string.Format("No card is detected (or reader reserved by another application){0}{1}",
Environment.NewLine, SCardHelper.StringifyError(result));
}
string[] readerNames; SCardProtocol protocol; SCardState state; byte[] atr;
result = reader.Status(out readerNames, out state, out protocol, out atr);
if (result != SCardError.Success)
{
context.Dispose();
reader.Dispose();
return string.Format("Unable to read from card.{0}{1}", Environment.NewLine, SCardHelper.StringifyError(result));
}
string message = string.Format("Card detected:{0}Protocol: {1}{0}State: {2}{0}ATR: {3}{0}",
Environment.NewLine, protocol, state, BitConverter.ToString(atr ?? new byte[0]));
CommandApdu apdu = new CommandApdu(IsoCase.Case2Short, reader.ActiveProtocol)
{
CLA = 0xFF,
Instruction = InstructionCode.GetData,
P1 = 0x00,
P2 = 0x00,
Le = 0
};
result = reader.BeginTransaction();
if (result != SCardError.Success)
{
context.Dispose();
reader.Dispose();
return string.Format("Cannot start transaction.{0} {1}", Environment.NewLine, SCardHelper.StringifyError(result));
}
SCardPCI recievePci = new SCardPCI();
IntPtr sendPci = SCardPCI.GetPci(reader.ActiveProtocol);
byte[] recieveBuffer = new byte[256];
result = reader.Transmit(sendPci, apdu.ToArray(), recievePci, ref recieveBuffer);
if (result != SCardError.Success)
{
context.Dispose();
reader.Dispose();
return string.Format("Cannot transmit data.{0} {1}", Environment.NewLine, SCardHelper.StringifyError(result));
}
var responseApdu = new ResponseApdu(recieveBuffer, IsoCase.Case2Short, reader.ActiveProtocol);
message += string.Format("SW1: {1}{0}SW2: {2}{0}", Environment.NewLine, responseApdu.SW1, responseApdu.SW2);
string data = responseApdu.HasData ? BitConverter.ToString(responseApdu.GetData()) : "--";
if (uidOnly)
{
context.Dispose();
reader.Dispose();
return string.Format("UID^{0}^", data);
}
message += string.Format("UID: {0}",data);
reader.EndTransaction(SCardReaderDisposition.Leave);
reader.Disconnect(SCardReaderDisposition.Reset);
context.Dispose();
reader.Dispose();
return message;
}
static void Main(string[] args)
{
SCardContext ctx = new SCardContext();
ctx.Establish(SCardScope.System);
// retrieve all reader names
string[] readernames = ctx.GetReaders();
if (readernames != null)
{
// get the card status of each reader that is currently connected
foreach (string readername in readernames)
{
SCardReader reader = new SCardReader(ctx);
Console.Write("Trying to connect to reader " + readername + "..");
SCardError serr = reader.Connect(readername,
SCardShareMode.Shared,
SCardProtocol.Any);
if (serr == SCardError.Success)
{
// SmartCard inserted, reader is now connected.
Console.WriteLine(" done.");
string[] tmpreadernames;
SCardProtocol proto;
SCardState state;
byte[] atr;
serr = reader.Status(
out tmpreadernames, // contains the reader name(s)
out state, // contains the current state (flags)
out proto, // contains the currently used communication protocol
out atr); // contains the card ATR
if (serr == SCardError.Success)
{
Console.WriteLine("Connected with protocol " +
proto + " in state " + state);
if (atr != null && atr.Length > 0)
{
Console.Write("Card ATR: ");
foreach (byte b in atr)
Console.Write("{0:X2}", b);
Console.WriteLine();
}
Console.WriteLine();
}
else
{
Console.WriteLine("Unable to retrieve card status.\nError message: "
+ SCardHelper.StringifyError(serr)
+ ".\n");
}
reader.Disconnect(SCardReaderDisposition.Reset);
}
else
{
/* SmardCard not inserted or reader is reserved exclusively by
another application. */
Console.WriteLine(" failed.\nError message: "
+ SCardHelper.StringifyError(serr)
+ ".\n");
}
}
}
return;
}
/// <summary>
/// Will try to connect to the _connectedReader, see if there is a card present, and if so try to read the data.
/// </summary>
/// <returns>Either the error message or data from the card.</returns>
public string TryToReadCard()
{
SCardContext context = new SCardContext();
context.Establish(SCardScope.System);
SCardReader reader = new SCardReader(context);
SCardError result = SCardError.InternalError;
try
{
result = reader.Connect(_connectedReader, SCardShareMode.Shared, SCardProtocol.Any);
}
catch (Exception)
{
context.Dispose();
reader.Dispose();
return SCardHelper.StringifyError(result);
}
string message;
if (result == SCardError.Success)
{
string[] readerNames; SCardProtocol protocol; SCardState state; byte[] atr;
result = reader.Status(out readerNames, out state, out protocol, out atr);
if (result == SCardError.Success)
message = string.Format("Card detected:{0} Protocol: {1}{0} State: {2}{0} ATR: {3}",
Environment.NewLine, protocol, state, BitConverter.ToString(atr ?? new byte[0]));
else
message = string.Format("Unable to read from card.{0}{1}", Environment.NewLine,
SCardHelper.StringifyError(result));
}
else
message = string.Format("No card is detected (or reader reserved by another application){0} {1}",
Environment.NewLine, SCardHelper.StringifyError(result));
context.Dispose();
reader.Dispose();
return message;
}
public Boolean Open(string readerName = null)
{
try
{
// Establish SCard context
_hContext = new SCardContext();
_hContext.Establish(SCardScope.System);
// Create a _reader object using the existing context
_reader = new SCardReader(_hContext);
// Connect to the card
if (readerName == null || readerName == String.Empty)
{
// Retrieve the list of Smartcard _readers
string[] szReaders = _hContext.GetReaders();
if (szReaders.Length <= 0)
throw new PCSCException(SCardError.NoReadersAvailable,
"Could not find any Smartcard _reader.");
_err = _reader.Connect(szReaders[0],
SCardShareMode.Exclusive,
SCardProtocol.T0 | SCardProtocol.T1);
CheckErr(_err);
}
else
{
_err = _reader.Connect(readerName,
SCardShareMode.Exclusive,
SCardProtocol.T0 | SCardProtocol.T1);
CheckErr(_err);
}
_pioSendPci = new IntPtr();
switch (_reader.ActiveProtocol)
{
case SCardProtocol.T0:
_pioSendPci = SCardPCI.T0;
break;
case SCardProtocol.T1:
_pioSendPci = SCardPCI.T1;
break;
default:
throw new PCSCException(SCardError.ProtocolMismatch,
"Protocol not supported: "
+ _reader.ActiveProtocol.ToString());
}
string[] readerNames;
SCardProtocol proto;
SCardState state;
byte[] atr;
var sc = _reader.Status(
out readerNames, // contains the reader name(s)
out state, // contains the current state (flags)
out proto, // contains the currently used communication protocol
out atr); // contains the ATR
if (atr == null || atr.Length < 2)
{
return false;
}
if (atr[0] == 0x3B && atr[1] == 0x68) //Smart card tested with old type (Figure A.)
{
_apdu = new APDU_THAILAND_IDCARD_3B68();
}
else if (atr[0] == 0x3B && atr[1] == 0x78) //Smart card tested with new type (figure B.)
{
_apdu = new APDU_THAILAND_IDCARD_3B68();
}
else if (atr[0] == 0x3B && atr[1] == 0x67)
{
_apdu = new APDU_THAILAND_IDCARD_3B67();
}
else
{
_error_code = ECODE_UNSUPPORT_CARD;
_error_message = "Card not support";
Console.WriteLine(_error_message);
return false;
}
return true;
}
catch (PCSCException ex)
{
_error_code = ECODE_SCardError;
_error_message = "Err: " + ex.Message + " (" + ex.SCardError.ToString() + ")";
Console.WriteLine(_error_message);
return false;
}
}
