private static void VerifyUser3Wbp(ISmartCardReader smartCardReader, byte firstPinByte, byte secondPinByte)
{
var threeWireBusProtocol = new Readers.AViatoR.Components.Synchronus3WBP();
byte newErrorCounter;
Console.WriteLine("User Verification");
// Read Error Counter
string command = threeWireBusProtocol.ReadErrorCounterApdu();
string response = smartCardReader.Transmit(command);
string currentErrorCounter = response.Substring(4, 2);
PrintData("Read Error Counter", command, response, $"0x{currentErrorCounter}");
// decrement counter
switch (currentErrorCounter)
{
case "7F":
newErrorCounter = 0x7E;
break;
case "7E":
newErrorCounter = 0x7C;
break;
case "7C":
newErrorCounter = 0x78;
break;
case "78":
newErrorCounter = 0x70;
break;
case "70":
newErrorCounter = 0x60;
break;
case "60":
newErrorCounter = 0x40;
break;
case "40":
newErrorCounter = 0x00;
break;
default:
Console.WriteLine("Returned error counter is not correct or card is blocked");
return;
}
command = threeWireBusProtocol.WriteErrorCounterApdu(newErrorCounter);
response = smartCardReader.Transmit(command);
PrintData("Write new Error Counter", command, response, $"0x{newErrorCounter:X2}");
// Verify pin first byte
command = threeWireBusProtocol.VerifyFirstPinByte(firstPinByte);
response = smartCardReader.Transmit(command);
PrintData("Verify first pin byte", command, response, $"{firstPinByte:X2}");
// Verify pin second byte
command = threeWireBusProtocol.VerifySecondPinByte(secondPinByte);
response = smartCardReader.Transmit(command);
PrintData("Verify second pin byte", command, response, $"{secondPinByte:X2}");
// Reset Error Counter
command = threeWireBusProtocol.ResetErrorCounterApdu();
response = smartCardReader.Transmit(command);
PrintData("Reset Error Counter", command, response, "");
}
