/// <summary>
/// Depending on the command, serialize the needed data
/// Authentication will serialize the command, the concerned key and
/// the serial number
/// Reading data will just serialize the command
/// Writing data will serialize the data as well
/// </summary>
/// <returns>The serialized bits</returns>
private byte[] Serialize()
{
byte[] ser = null;
switch (Command)
{
case MifareCardCommand.AuthenticationA:
ser = new byte[2 + KeyA.Length + SerialNumber.Length];
ser[0] = (byte)Command;
ser[1] = BlockNumber;
if (KeyA.Length > 0)
{
KeyA.CopyTo(ser, 2);
}
if (SerialNumber.Length > 0)
{
SerialNumber.CopyTo(ser, 2 + KeyA.Length);
}
return(ser);
case MifareCardCommand.AuthenticationB:
ser = new byte[2 + KeyB.Length + SerialNumber.Length];
ser[0] = (byte)Command;
ser[1] = BlockNumber;
if (KeyB.Length > 0)
{
KeyB.CopyTo(ser, 2);
}
if (SerialNumber.Length > 0)
{
SerialNumber.CopyTo(ser, 2 + KeyB.Length);
}
return(ser);
case MifareCardCommand.Write16Bytes:
case MifareCardCommand.Write4Bytes:
ser = new byte[2 + Data.Length];
ser[0] = (byte)Command;
ser[1] = BlockNumber;
if (Data.Length > 0)
{
Data.CopyTo(ser, 2);
}
return(ser);
case MifareCardCommand.Incrementation:
case MifareCardCommand.Decrementation:
case MifareCardCommand.Transfer:
case MifareCardCommand.Restore:
case MifareCardCommand.Read16Bytes:
default:
ser = new byte[2];
ser[0] = (byte)Command;
ser[1] = BlockNumber;
return(ser);
}
}
/// <summary>
/// Depending on the command, serialize the needed data
/// Authentication will serialize the command, the concerned key and
/// the serial number
/// Reading data will just serialize the command
/// Writing data will serialize the data as well
/// </summary>
/// <returns>The serialized bits</returns>
private byte[] Serialize()
{
byte[]? ser = null;
switch (Command)
{
case MifareCardCommand.AuthenticationA:
if (KeyA is null || SerialNumber is null)
{
throw new Exception($"Card is not configured for {nameof(MifareCardCommand.AuthenticationA)}.");
}
ser = new byte[2 + KeyA.Length + SerialNumber.Length];
ser[0] = (byte)Command;
ser[1] = BlockNumber;
if (KeyA.Length > 0)
{
KeyA.CopyTo(ser, 2);
}
if (SerialNumber.Length > 0)
{
SerialNumber.CopyTo(ser, 2 + KeyA.Length);
}
return(ser);
case MifareCardCommand.AuthenticationB:
if (KeyB is null || SerialNumber is null)
{
throw new Exception($"Card is not configured for {nameof(MifareCardCommand.AuthenticationB)}.");
}
ser = new byte[2 + KeyB.Length + SerialNumber.Length];
ser[0] = (byte)Command;
ser[1] = BlockNumber;
if (KeyB.Length > 0)
{
KeyB.CopyTo(ser, 2);
}
if (SerialNumber.Length > 0)
{
SerialNumber.CopyTo(ser, 2 + KeyB.Length);
}
return(ser);
case MifareCardCommand.Write16Bytes:
case MifareCardCommand.Write4Bytes:
if (Data is null)
{
throw new Exception($"Card is not configured for {nameof(MifareCardCommand.Write4Bytes)}.");
}
ser = new byte[2 + Data.Length];
ser[0] = (byte)Command;
ser[1] = BlockNumber;
if (Data.Length > 0)
{
Data.CopyTo(ser, 2);
}
return(ser);
case MifareCardCommand.Incrementation:
case MifareCardCommand.Decrementation:
case MifareCardCommand.Transfer:
case MifareCardCommand.Restore:
case MifareCardCommand.Read16Bytes:
default:
ser = new byte[2];
ser[0] = (byte)Command;
ser[1] = BlockNumber;
return(ser);
}
}
