public byte[] GetUid(SCardReader reader)
{
SCardError sc = reader.BeginTransaction();
var apdu = new CommandApdu(IsoCase.Case2Short, reader.ActiveProtocol)
{
CLA = 0xFF,
Instruction = InstructionCode.GetData,
P1 = 0x00,
P2 = 0x00,
Le = 0x00
};
var responseApdu = SendAPDU(apdu, reader);
reader.EndTransaction(SCardReaderDisposition.Leave);
if (responseApdu != null && responseApdu.HasData)
{
return responseApdu.GetData();
}
else
{
return new byte[0];
}
}
public override byte[] GetCardMemory(SCardReader reader)
{
SCardError sc = reader.BeginTransaction();
if (sc != SCardError.Success)
{
//TODO
return new byte[0];
}
byte[] memory = new byte[12 * 4];
int offset = 0;
for (byte i = 0x04; i < 0x10; i++)
{
byte[] page = getPage(i, reader);
Array.Copy(page, 0, memory, offset, page.Length);
offset += page.Length;
}
reader.EndTransaction(SCardReaderDisposition.Leave);
return memory;
}
/// <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;
}
/// <summary>
/// Retrieves the UID of a card that is currently connected to the given
/// reader.
/// </summary>
/// <param name="readername"></param>
/// <exception cref="Exception">Could not begin transaction.</exception>
private byte[] UidFromConnectedCard( string readername )
{
SCardReader rfidReader = new SCardReader( Context );
SCardError resultCode = rfidReader.Connect( readername, SCardShareMode.Shared, SCardProtocol.Any );
if( resultCode != SCardError.Success ) {
throw new Exception( "Unable to connect to RFID card / chip. Error: " + SCardHelper.StringifyError( resultCode ) );
}
// prepare APDU
byte[] payload = new byte[] {
0xFF, // the instruction class
0xCA, // the instruction code
0x00, // parameter to the instruction
0x00, // parameter to the instruction
0x00 // size of I/O transfer
};
byte[] receiveBuffer = new byte[10];
resultCode = rfidReader.BeginTransaction();
if( resultCode != SCardError.Success ) {
throw new Exception( "Could not begin transaction." );
}
SCardPCI ioreq = new SCardPCI();
IntPtr protocolControlInformation = SCardPCI.GetPci( rfidReader.ActiveProtocol );
resultCode = rfidReader.Transmit( protocolControlInformation, payload, ioreq, ref receiveBuffer );
if( resultCode != SCardError.Success ) {
Log.Error( SCardHelper.StringifyError( resultCode ) );
receiveBuffer = null;
}
rfidReader.EndTransaction( SCardReaderDisposition.Leave );
rfidReader.Disconnect( SCardReaderDisposition.Reset );
return receiveBuffer;
}
public static void Main() {
using (var context = new SCardContext()) {
context.Establish(SCardScope.System);
var readerNames = context.GetReaders();
if (readerNames == null || readerNames.Length < 1) {
Console.WriteLine("You need at least one reader in order to run this example.");
Console.ReadKey();
return;
}
var readerName = ChooseRfidReader(readerNames);
if (readerName == null) {
return;
}
using (var rfidReader = new SCardReader(context)) {
var sc = rfidReader.Connect(readerName, SCardShareMode.Shared, SCardProtocol.Any);
if (sc != SCardError.Success) {
Console.WriteLine("Could not connect to reader {0}:\n{1}",
readerName,
SCardHelper.StringifyError(sc));
Console.ReadKey();
return;
}
var apdu = new CommandApdu(IsoCase.Case2Short, rfidReader.ActiveProtocol) {
CLA = 0xFF,
Instruction = InstructionCode.GetData,
P1 = 0x00,
P2 = 0x00,
Le = 0 // We don't know the ID tag size
};
sc = rfidReader.BeginTransaction();
if (sc != SCardError.Success) {
Console.WriteLine("Could not begin transaction.");
Console.ReadKey();
return;
}
Console.WriteLine("Retrieving the UID .... ");
var receivePci = new SCardPCI(); // IO returned protocol control information.
var sendPci = SCardPCI.GetPci(rfidReader.ActiveProtocol);
var receiveBuffer = new byte[256];
var command = apdu.ToArray();
sc = rfidReader.Transmit(
sendPci, // Protocol Control Information (T0, T1 or Raw)
command, // command APDU
receivePci, // returning Protocol Control Information
ref receiveBuffer); // data buffer
if (sc != SCardError.Success) {
Console.WriteLine("Error: " + SCardHelper.StringifyError(sc));
}
var responseApdu = new ResponseApdu(receiveBuffer, IsoCase.Case2Short, rfidReader.ActiveProtocol);
Console.Write("SW1: {0:X2}, SW2: {1:X2}\nUid: {2}",
responseApdu.SW1,
responseApdu.SW2,
responseApdu.HasData ? BitConverter.ToString(responseApdu.GetData()) : "No uid received");
rfidReader.EndTransaction(SCardReaderDisposition.Leave);
rfidReader.Disconnect(SCardReaderDisposition.Reset);
Console.ReadKey();
}
}
}
static void Main(string[] args)
{
SCardContext ctx = new SCardContext();
ctx.Establish(SCardScope.System);
string[] readernames = ctx.GetReaders();
if (readernames == null || readernames.Length < 1)
throw new Exception("You need at least one reader in order to run this example.");
// Show available readers.
Console.WriteLine("Available readers: ");
for (int i = 0; i < readernames.Length; i++)
Console.WriteLine("[" + i + "] " + readernames[i]);
int num = 0;
if (readernames.Length > 1)
{
// Ask the user which one to choose.
Console.Write("Which reader is an RFID reader? ");
string relin = Console.ReadLine();
if (!(int.TryParse(relin, out num))
|| num < 0
|| num > readernames.Length)
{
Console.WriteLine("An invalid number has been entered. Exiting.");
return;
}
}
string readername = readernames[num];
SCardReader RFIDReader = new SCardReader(ctx);
SCardError rc = RFIDReader.Connect(
readername,
SCardShareMode.Shared,
SCardProtocol.Any);
if (rc != SCardError.Success)
{
Console.WriteLine("Unable to connect to RFID card / chip. Error: " +
SCardHelper.StringifyError(rc));
return;
}
// prepare APDU
byte[] ucByteSend = new byte[]
{
0xFF, // the instruction class
0xCA, // the instruction code
0x00, // parameter to the instruction
0x00, // parameter to the instruction
0x00 // size of I/O transfer
};
byte[] ucByteReceive = new byte[10];
Console.Out.WriteLine("Retrieving the UID .... ");
rc = RFIDReader.BeginTransaction();
if (rc != SCardError.Success)
throw new Exception("Could not begin transaction.");
SCardPCI ioreq = new SCardPCI(); /* creates an empty object (null).
* IO returned protocol control information.
*/
IntPtr sendPci = SCardPCI.GetPci(RFIDReader.ActiveProtocol);
rc = RFIDReader.Transmit(
sendPci, /* Protocol control information, T0, T1 and Raw
* are global defined protocol header structures.
*/
ucByteSend, /* the actual data to be written to the card */
ioreq, /* The returned protocol control information */
ref ucByteReceive);
if (rc == SCardError.Success)
{
Console.Write("Uid: ");
for (int i = 0; i < (ucByteReceive.Length); i++)
Console.Write("{0:X2} ", ucByteReceive[i]);
Console.WriteLine("");
}
else
{
Console.WriteLine("Error: " + SCardHelper.StringifyError(rc));
}
RFIDReader.EndTransaction(SCardReaderDisposition.Leave);
RFIDReader.Disconnect(SCardReaderDisposition.Reset);
return;
}
public override byte[] GetCardMemory(SCardReader reader)
{
SCardError sc = reader.BeginTransaction();
if (sc != SCardError.Success)
return new byte[0]; // TODO proper exception
if (!LoadAuthenticationKey(reader))
return new byte[0]; // TODO proper exception
byte[] memory = new byte[(int)memorySize];
int sectors;
switch (memorySize)
{
case MemorySize.Classic1K:
sectors = 15;
break;
case MemorySize.Classic4K:
sectors = 31;
break;
case MemorySize.ClassicMini:
sectors = 5;
break;
default:
return new byte[0]; // TODO proper exception
}
bool readMemory = true;
int currentSector = 1; // ignore first (=0) sector, since it's not usable
while (readMemory && currentSector <= sectors)
{
bool readSector = true;
int sectorOffset = currentSector * 4;
int currentBlock = 0;
while (readSector && currentBlock < 3)
{
readSector = false;
byte[] block;
try
{
block = ReadBinaryBlock((byte)(sectorOffset + currentBlock), reader);
}
catch (Exception)
{
throw;
}
int i = 0;
while (!readSector && i < block.Length)
{ // check for data
if (block[i] != 0x00) readSector = true;
i++;
}
if (readSector) // update only if data
Buffer.BlockCopy(block, 0, memory, 48 * (currentSector - 1) + (currentBlock * 16), 16);
currentBlock++;
}
readMemory = readSector;
currentSector++;
}
reader.EndTransaction(SCardReaderDisposition.Leave);
return memory;
}
public string ReadSmartCard()
{
using (var context = new SCardContext())
{
context.Establish(SCardScope.System);
string readerName = null;
try
{
string[] readerNames = context.GetReaders();
readerName = readerNames[0];
}
catch(Exception ex)
{
return "error";
}
if (readerName == null)
{
return "error";
}
using (var rfidReader = new SCardReader(context))
{
var sc = rfidReader.Connect(readerName, SCardShareMode.Shared, SCardProtocol.Any);
if (sc != SCardError.Success)
{
return "error";//"Could not connect to reader {0}:\n{1}";
}
var apdu = new CommandApdu(IsoCase.Case2Short, rfidReader.ActiveProtocol)
{
CLA = 0xFF,
Instruction = InstructionCode.GetData,
P1 = 0x00,
P2 = 0x00,
Le = 0 // We don't know the ID tag size
};
sc = rfidReader.BeginTransaction();
if (sc != SCardError.Success)
{
return "none";// "Could not begin transaction.";
}
var receivePci = new SCardPCI(); // IO returned protocol control information.
var sendPci = SCardPCI.GetPci(rfidReader.ActiveProtocol);
var receiveBuffer = new byte[256];
var command = apdu.ToArray();
sc = rfidReader.Transmit(
sendPci, // Protocol Control Information (T0, T1 or Raw)
command, // command APDU
receivePci, // returning Protocol Control Information
ref receiveBuffer); // data buffer
if (sc != SCardError.Success)
{
return "none";//SCardHelper.StringifyError(sc);
}
var responseApdu = new ResponseApdu(receiveBuffer, IsoCase.Case2Short, rfidReader.ActiveProtocol);
rfidReader.EndTransaction(SCardReaderDisposition.Leave);
rfidReader.Disconnect(SCardReaderDisposition.Reset);
int id = responseApdu.HasData ? BitConverter.ToInt32(responseApdu.GetData(),0) : -1;
//int id = responseApdu.HasData ? System.Text.Encoding.UTF8.GetString(responseApdu.GetData()) : "none";
if (id < 0) id = id * (-1);
return id.ToString();
}
}
return "none";
}
