bool AuthBlock(IsoCard card, int block, bool isAKey = true)
{
byte type = 0x60;
if (!isAKey)
{
type = 0x61;
}
CommandApdu apdu = card.ConstructCommandApdu(IsoCase.Case3Short);
apdu.CLA = 0xFF;
apdu.INS = 0x86;
apdu.P1 = 0x00;
apdu.P2 = 0x00;
apdu.Data = new byte[] { 0x01, //version
0x00,
(byte)block,
type, //Key type 0x60 TYPE_A, 0x61 TYPE_B
0x00 }; //Key number 0x00 ~ 0x1F
Response response = card.Transmit(apdu);
if (response.SW1 == (byte)SW1Code.Normal)
{
return(true);
}
return(false);
}
void UpdateMoney(IsoCard card)
{
string cfg = CardDumper.GetConfigurationKey("UpdateMoney");
int money = 0;
if (!int.TryParse(cfg, out money))
{
return;
}
string data = DumpMoney(card);
if (string.IsNullOrEmpty(data))
{
return;
}
int first = money & 0x0000FF;
int second = (money >> 8) & 0x0000FF;
//9
// 10
byte[] bytes = FromHex(data);
bytes[9] = (byte)second;
bytes[10] = (byte)first;
if (!Write(card, 45, bytes))
{
Log("Write failed!");
}
DumpMoney(card);
}
void DumpCard(IsoCard card)
{
string uid = ReadUID(card);
Log("UID: " + uid);
Log("[----------Start of Memory Dump----------]");
int blockSize = 4;
for (int sector = 0; sector != 16; ++sector)
{
Log("----------------Sector " + string.Format("{0:D2}", sector) + "-----------------");
for (int block = 0; block != blockSize; ++block)
{
int cardBlock = sector * blockSize + block;
string data = Read(card, cardBlock);
Log("Block " + string.Format("{0:D2}", cardBlock) + ": " + data);
}
}
Log("[-----------End of Memory Dump-----------]");
}
public IsoCard TryConnect(String cardName)
{
try
{
IsoCard card = new IsoCard(this.reader);
card.Connect(cardName, SCardShareMode.Shared, SCardProtocol.Any);
return(card);
}
catch (PCSCException)
{
return(null);
}
}
public List <String> GetConnected()
{
List <String> ret = new List <String>();
List <String> readers = new List <string>(ctx.GetReaders());
foreach (string s in readers)
{
IsoCard f = TryConnect(s);
if (f == null)
{
continue;
}
ret.Add(s);
}
return(ret);
}
string DumpMoney(IsoCard card)
{
string uid = ReadUID(card);
string data = Read(card, 45);
if (string.IsNullOrEmpty(data))
{
return("");
}
string money = data.Substring(18, 4);
byte[] binary = FromHex(money);
int value = (((int)binary[0]) << 8) | ((int)binary[1]);
Log("UID: " + uid + " " + value + " cents");
return(data);
}
bool WriteBlock(IsoCard card, int block, byte[] data)
{
CommandApdu apdu = card.ConstructCommandApdu(IsoCase.Case3Short);
apdu.CLA = 0xFF;
apdu.Instruction = InstructionCode.UpdateBinary;
apdu.P1 = 0x00;
apdu.P2 = (byte)block;
apdu.Data = data;
Response response = card.Transmit(apdu);
if (response.SW1 == (byte)SW1Code.Normal)
{
return(true);
}
return(false);
}
bool LoadKey(IsoCard card, byte[] key)
{
CommandApdu apdu = card.ConstructCommandApdu(IsoCase.Case3Short);
apdu.CLA = 0xFF;
apdu.Instruction = InstructionCode.ExternalAuthenticate;
apdu.P1 = 0x20;
apdu.P2 = 0x00;
apdu.Data = key;
Response response = card.Transmit(apdu);
if (response.SW1 == (byte)SW1Code.Normal)
{
return(true);
}
return(false);
}
void CardInserted(object sender, CardStatusEventArgs args)
{
SCardMonitor monitor = (SCardMonitor)sender;
Log("CardInserted Event for reader: " + args.ReaderName);
try
{
SCardReader reader = new SCardReader(m_card_context);
if (reader.Connect(args.ReaderName, SCardShareMode.Shared, SCardProtocol.Any) == SCardError.Success)
{
DumpStatus(reader);
IsoCard card = new IsoCard(reader);
if (CardDumper.IsKeyEnabled("DumpCard"))
{
DumpCard(card);
}
if (CardDumper.IsKeyEnabled("DumpMoney"))
{
DumpMoney(card);
}
if (!string.IsNullOrEmpty(CardDumper.GetConfigurationKey("UpdateMoney")))
{
UpdateMoney(card);
}
}
reader.Disconnect(SCardReaderDisposition.Reset);
}
catch (Exception ex)
{
Log("Exception: " + ex.ToString());
}
}
bool Write(IsoCard card, int block, byte[] data)
{
bool ok = false;
byte[] key = null;
if (m_keys.TryGetValue("A" + block, out key))
{
if (LoadKey(card, key) && AuthBlock(card, block, true))
{
ok = WriteBlock(card, block, data);
}
}
if (!ok && m_keys.TryGetValue("B" + block, out key))
{
if (LoadKey(card, key) && AuthBlock(card, block, false))
{
ok = WriteBlock(card, block, data);
}
}
return(ok);
}
string ReadUID(IsoCard card)
{
string ouput = "";
CommandApdu apdu = card.ConstructCommandApdu(IsoCase.Case2Short);
apdu.CLA = 0xFF;
apdu.Instruction = InstructionCode.GetData;
apdu.P1 = 0x00;
apdu.P2 = 0x00;
apdu.Le = 0x00;
Response response = card.Transmit(apdu);
if (response.SW1 == (byte)SW1Code.Normal)
{
byte[] data = response.GetData();
if (data != null)
{
ouput = ToHex(data);
}
}
return(ouput);
}
string Read(IsoCard card, int block)
{
string ouput = "";
bool ok = false;
byte[] key = null;
if (m_keys.TryGetValue("A" + block, out key))
{
if (LoadKey(card, key))
{
if (AuthBlock(card, block, true))
{
ouput = ReadBlock(card, block);
ok = !string.IsNullOrEmpty(ouput);
}
}
}
if (!ok && m_keys.TryGetValue("B" + block, out key))
{
// Log("--" + ToHex(key));
if (LoadKey(card, key))
{
if (AuthBlock(card, block, false))
{
ouput = ReadBlock(card, block);
ok = !string.IsNullOrEmpty(ouput);
}
}
}
return(ouput);
}
static void Main(string[] args)
{
// Establish PC/SC context
SCardContext ctx = new SCardContext();
ctx.Establish(SCardScope.System);
// Create a reader object
SCardReader reader = new SCardReader(ctx);
// Use the first reader that is found
string firstreader = ctx.GetReaders()[0];
// Connect to the card
IsoCard card = new IsoCard(reader);
card.Connect(firstreader, SCardShareMode.Shared, SCardProtocol.Any);
// Build a ATR fetch case
CommandApdu apdu = card.ConstructCommandApdu(
IsoCase.Case2Short);
apdu.CLA = 0x00; // Class
apdu.INS = 0x84; // Instruction: GET CHALLENGE
apdu.P1 = 0x00; // Parameter 1
apdu.P2 = 0x00; // Parameter 2
apdu.Le = 0x08; // Expected length of the returned data
// Transmit the Command APDU to the card and receive the response
Response resp = card.Transmit(apdu);
// Show SW1SW2 from the last response packet (if more than one has been received).
Console.WriteLine("SW1: {0:X2} SW2: {1:X2}", resp.SW1, resp.SW2);
byte[] data;
// First test - get the data from all response APDUs
data = resp.GetData();
if (data != null)
{
Console.Write("CHALLENGE:");
foreach (byte b in data)
{
Console.Write(" {0:X2}", b);
}
Console.WriteLine();
}
// Second test - get the data from each response APDU.
int i = 0;
foreach (ResponseApdu respApdu in resp.ResponseApduList)
{
data = respApdu.GetData();
if (data != null)
{
Console.Write("APDU ({0}), DATA:", i);
foreach (byte b in data)
{
Console.Write(" {0:X2}", b);
}
Console.WriteLine();
i++;
}
}
return;
}
