static void WriteBlock(Crypto1 crapto1, byte b, byte[] blockData)
{
var enWrite = new byte[4] {
0xA0, b, 0, 0
};
Iso14443aCrcAppend(enWrite, 2);
var enWriteParity = new byte[4];
crapto1.Encrypt(enWrite, enWriteParity, 0, 4);
var resbits = device.InitiatorTransceiveBits(enWrite, 32, enWriteParity, abtRx, MAX_FRAME_LEN, null);
var res = 0;
for (int i = 0; i < 4; i++)
{
res |= ((abtRx[0] >> i) ^ crapto1.Crypto1Bit()) << i;
}
WriteLine("Write Cmd : " + res.ToString("x2"));
if (res != 0x0A && res != 0x0E) // 0x0A ACK, 0x0E NAK
{
throw new Exception("Cmd Error: " + res.ToString("x2"));
}
var enBlock = new byte[18]; // 16byte data + 2byte crc
var enBlockParity = new byte[18];
if (blockData != null)
{
Array.Copy(blockData, enBlock, blockData.Length > 16 ? 16 : blockData.Length);
}
Iso14443aCrcAppend(enBlock, 16);
Write("Write Block{0,2}: ", b);
PrintHex(enBlock, 16);
crapto1.Encrypt(enBlock, enBlockParity, 0, 18);
resbits = device.InitiatorTransceiveBits(enBlock, 144, enBlockParity, abtRx, MAX_FRAME_LEN, null);
res = 0;
for (int i = 0; i < 4; i++)
{
res |= ((abtRx[0] >> i) ^ crapto1.Crypto1Bit()) << i;
}
WriteLine("Write data: " + res.ToString("x2"));
if (res != 0x0A && res != 0x0E) // 0x0A ACK, 0x0E NAK
{
throw new Exception("Cmd Error: " + res.ToString("x2"));
}
//var enTransfer = new byte[4] { 0xB0, b, 0, 0 };
//Nfc.Iso14443aCrcAppend(enTransfer, 2);
//var enTransferParity = new byte[4];
//crapto1.Encrypt(enTransfer, enTransferParity, 0, 4);
//res = device.InitiatorTransceiveBits(enTransfer, 32, enTransferParity, abtRx, MAX_FRAME_LEN, null);
}
public void WriteBlock(byte b, byte[] blockData)
{
if (b / 4 != _sector || Crypto1 == null)
{
throw new Exception("Not auth");
}
var write = new byte[4] {
0xA0, b, 0, 0
};
Iso14443aCrcAppend(write, 2);
var writeParity = new byte[4];
Crypto1.Encrypt(write, writeParity, 0, 4);
var resbits = Device.InitiatorTransceiveBits(write, 32, writeParity, rxBuffer, MAX_FRAME_LEN, null);
var res = 0;
for (int i = 0; i < 4; i++)
{
res |= ((rxBuffer[0] >> i) ^ Crypto1.Crypto1Bit()) << i;
}
if (res != 0x0A && res != 0x0E) // 0x0A ACK, 0x0E NAK
{
throw new Exception("Cmd Error: " + res.ToString("x2"));
}
var block = new byte[18]; // 16byte data + 2byte crc
var blockParity = new byte[18];
if (blockData != null)
{
Array.Copy(blockData, block, blockData.Length > 16 ? 16 : blockData.Length);
}
Iso14443aCrcAppend(block, 16);
Crypto1.Encrypt(block, blockParity, 0, 18);
resbits = Device.InitiatorTransceiveBits(block, 144, blockParity, rxBuffer, MAX_FRAME_LEN, null);
res = 0;
for (int i = 0; i < 4; i++)
{
res |= ((rxBuffer[0] >> i) ^ Crypto1.Crypto1Bit()) << i;
}
if (res != 0x0A && res != 0x0E) // 0x0A ACK, 0x0E NAK
{
throw new Exception("Cmd Error: " + res.ToString("x2"));
}
}
