internal static FreefareTag Build(IntPtr ptrTag, bool dispose, NfcDevice device, NfcTarget target)
{
TagType type = NativeMethods.freefare_get_tag_type(ptrTag);
Console.WriteLine(" type={0}", type);
FreefareTag tag;
switch (type)
{
case TagType.NTAG_21x:
tag = new NTAG21xTag(ptrTag, dispose, device, target);
Console.WriteLine(" subtype={0}", ((NTAG21xTag)tag).SubType);
break;
case TagType.MIFARE_CLASSIC_1K:
tag = new MifareClassic1kTag(ptrTag, dispose, device, target);
break;
case TagType.MIFARE_CLASSIC_4K:
tag = new MifareClassic4kTag(ptrTag, dispose, device, target);
break;
//TODO other tag types
default:
tag = new GenericTag(ptrTag, dispose, device, target);
break;
}
return(tag);
}
internal FreefareTag(IntPtr ptr, bool dispose, NfcDevice device, NfcTarget target)
{
this.m_ptr = ptr;
this.m_dispose = dispose;
this.m_device = device;
this.m_target = target;
}
internal NTAG21xTag(IntPtr ptr, bool dispose, NfcDevice device, NfcTarget target) : base(ptr, dispose, device, target)
{
int code = NativeMethods.ntag21x_get_info(ptr);
if (code < 0)
{
throw new FreefareException(string.Format("Can't read tag info. ret={0} lastError={1}", code, this.LastError()));
}
}
public static void MainSelfLibNfc(string[] args)
{
Console.WriteLine("Hello");
Console.WriteLine("Using libnfc {0}", NfcContext.Version);
//CancellationTokenSource cts = new CancellationTokenSource();
//Console.CancelKeyPress += (s, e) =>
//{
// if (cts.IsCancellationRequested)
// {
// //Hard break, let it go
// }
// else
// {
// //soft break, handle it
// e.Cancel = true;
// cts.Cancel();
// }
//};
byte pollNr = 1;
byte period = 1;
var modulations = new[]
{
new NfcModulation(NfcModulationType.ISO14443A, NfcBaudRate.BR106),
new NfcModulation(NfcModulationType.ISO14443B, NfcBaudRate.BR106),
new NfcModulation(NfcModulationType.Felica, NfcBaudRate.BR212),
new NfcModulation(NfcModulationType.Felica, NfcBaudRate.BR424),
new NfcModulation(NfcModulationType.Jewel, NfcBaudRate.BR106),
};
Console.WriteLine("Opening libnfc context. sizeof(NfcModulation)={0}", Marshal.SizeOf <NfcModulation>());
using (NfcContext context = new NfcContext())
{
string[] devices = context.ListDevices();
Console.WriteLine("Found devices: [{0}]", string.Join(";", devices));
Console.WriteLine("Opening default device");
using (NfcDevice device = context.Open(null))
{
Console.WriteLine("Device opened");
Console.WriteLine(" name={0} constring={1}", device.Name, device.ConnectionString);
Console.WriteLine(" info={0}", device.GetInfo());
Console.WriteLine("Initializing as initiator");
INfcInitiator initiator = device.InitInitiator(false);
Console.WriteLine("NFC reader opened");
Console.WriteLine("NFC reader name: {0}", device.Name);
while (true)
{
PollTagsAndDisplayInfo(initiator);
}
}
}
}
static async Task Main(string[] args)
{
Console.WriteLine("Using libnfc {0}", NfcContext.Version);
CancellationTokenSource cts = new CancellationTokenSource();
Console.CancelKeyPress += (s, e) =>
{
if (cts.IsCancellationRequested)
{
//Hard break, let it go
}
else
{
//soft break, handle it
e.Cancel = true;
cts.Cancel();
}
};
byte pollNr = 20;
byte period = 2;
var modulations = new[]
{
new NfcModulation(NfcModulationType.ISO14443A, NfcBaudRate.BR106),
new NfcModulation(NfcModulationType.ISO14443B, NfcBaudRate.BR106),
new NfcModulation(NfcModulationType.Felica, NfcBaudRate.BR212),
new NfcModulation(NfcModulationType.Felica, NfcBaudRate.BR424),
new NfcModulation(NfcModulationType.Jewel, NfcBaudRate.BR106),
};
using (NfcContext context = new NfcContext())
using (NfcDevice device = context.Open(null))
{
NfcInitiator initiator = device.InitInitiator(false);
Console.WriteLine("NFC reader: {0} opened", device.Name);
Console.WriteLine($"NFC device will poll during {pollNr * modulations.Length * period * 150}ms ({pollNr} pollings of {period * 150}ms for {modulations.Length} modulations)");
//NfcInitiatorTarget target = await initiator.PollAsync(modulations, pollNr, period);
}
}
public void NfcManager_ConnectAndDisconnectDevice()
{
var dummyAdapter = new DummyNfcAdapter();
var bm = new NfcManager(new[] { dummyAdapter }, null);
var device = new NfcDevice
{
Id = "some-device-id",
Name = "Some-device-Uuid"
};
dummyAdapter.RaiseDeviceArriveddEvent(device);
var devices = bm.GetDiscoveredDevices();
devices.Count().ShouldBe(1);
var d = devices.First();
d.Name = device.Name;
d.Id = device.Id;
dummyAdapter.RaiseDeviceDepartedEvent(device);
devices = bm.GetDiscoveredDevices();
devices.Count().ShouldBe(0);
}
internal FreefareTagList(IntPtr ptr, NfcDevice device) : base(ptr, true)
{
this.m_device = device;
}
public MifareClassic(NfcDevice device)
{
Device = device;
}
static void Main(string[] args)
{
byte[] abtRawUid = new byte[12];
byte[] abtAtqa = new byte[2];
byte abtSak = 0;
byte[] abtAts = new byte[MAX_FRAME_LEN];
uint szAts = 0;
bool isoAtsSupported = false;
bool forceRats = false;
uint szCL = 1;
try
{
using (var context = new NfcContext())
using (device = context.OpenDevice()) // Try to open the NFC reader
{
// Initialise NFC device as "initiator"
device.InitiatorInit();
// Configure the CRC
device.DeviceSetPropertyBool(NfcProperty.HandleCrc, false);
// Use raw send/receive methods
device.DeviceSetPropertyBool(NfcProperty.EasyFraming, false);
// Disable 14443-4 autoswitching
device.DeviceSetPropertyBool(NfcProperty.AutoIso14443_4, false);
WriteLine("NFC reader: {0} opened", device.Name);
WriteLine();
// Send the 7 bits request command specified in ISO 14443A (0x26)
TransmitBits(abtReqa, 7);
Array.Copy(abtRx, abtAtqa, 2);
// Anti-collision
TransmitBytes(abtSelectAll, 2);
// Check answer
if ((abtRx[0] ^ abtRx[1] ^ abtRx[2] ^ abtRx[3] ^ abtRx[4]) != 0)
{
WriteLine("WARNING: BCC check failed!");
}
// Save the UID CL1
Array.Copy(abtRx, abtRawUid, 4);
//Prepare and send CL1 Select-Command
Array.Copy(abtRx, 0, abtSelectTag, 2, 5);
Iso14443aCrcAppend(abtSelectTag, 7);
TransmitBytes(abtSelectTag, 9);
abtSak = abtRx[0];
#region CL
// Test if we are dealing with a CL2
if ((abtSak & CASCADE_BIT) != 0)
{
szCL = 2; // or more
// Check answer
if (abtRawUid[0] != 0x88)
{
WriteLine("WARNING: Cascade bit set but CT != 0x88!");
}
}
if (szCL == 2)
{
// We have to do the anti-collision for cascade level 2
// Prepare CL2 commands
abtSelectAll[0] = 0x95;
// Anti-collision
TransmitBytes(abtSelectAll, 2);
// Check answer
if ((abtRx[0] ^ abtRx[1] ^ abtRx[2] ^ abtRx[3] ^ abtRx[4]) != 0)
{
WriteLine("WARNING: BCC check failed!");
}
// Save UID CL2
Array.Copy(abtRx, 0, abtRawUid, 4, 4);
// Selection
abtSelectTag[0] = 0x95;
Array.Copy(abtRx, 0, abtSelectTag, 2, 5);
Iso14443aCrcAppend(abtSelectTag, 7);
TransmitBytes(abtSelectTag, 9);
abtSak = abtRx[0];
// Test if we are dealing with a CL3
if ((abtSak & CASCADE_BIT) != 0)
{
szCL = 3;
// Check answer
if (abtRawUid[0] != 0x88)
{
WriteLine("WARNING: Cascade bit set but CT != 0x88!");
}
}
if (szCL == 3)
{
// We have to do the anti-collision for cascade level 3
// Prepare and send CL3 AC-Command
abtSelectAll[0] = 0x97;
TransmitBytes(abtSelectAll, 2);
// Check answer
if ((abtRx[0] ^ abtRx[1] ^ abtRx[2] ^ abtRx[3] ^ abtRx[4]) != 0)
{
WriteLine("WARNING: BCC check failed!");
}
// Save UID CL3
Array.Copy(abtRx, 0, abtRawUid, 8, 4);
// Prepare and send final Select-Command
abtSelectTag[0] = 0x97;
Array.Copy(abtRx, 0, abtSelectTag, 2, 5);
Iso14443aCrcAppend(abtSelectTag, 7);
TransmitBytes(abtSelectTag, 9);
abtSak = abtRx[0];
}
}
#endregion
// Request ATS, this only applies to tags that support ISO 14443A-4
if ((abtRx[0] & SAK_FLAG_ATS_SUPPORTED) != 0)
{
isoAtsSupported = true;
}
if ((abtRx[0] & SAK_FLAG_ATS_SUPPORTED) != 0 || forceRats)
{
Iso14443aCrcAppend(abtRats, 2);
int szRx = TransmitBytes(abtRats, 4);
if (szRx >= 0)
{
Array.Copy(abtRx, abtAts, szRx);
szAts = (uint)szRx;
}
}
WriteLine();
WriteLine("驗證Block 0");
// 驗證 Block 0
Iso14443aCrcAppend(abtAuthA, 2);
TransmitBytes(abtAuthA, 4);
// 自己控制 Parity bit
device.DeviceSetPropertyBool(NfcProperty.HandleParity, false);
var nt = abtRx.ToUInt32();
var uid = abtRawUid.ToUInt32();
Write(" Nt: ");
PrintHex(abtRx, 4);
var crapto1 = new Crypto1(0xFFFFFFFFFFFFu);
// 初始化 crapto1 狀態 feed in uid^nt and drop keystream in the first round
crapto1.Crypto1Word(uid ^ nt);
// 自訂讀卡機端nonce
var nr = 0x01020304u;
// Ar 為 suc2(nt)
var ar = PrngSuccessor(nt, 64);
// 加密 Nr,suc2(Nt) 和 parity bit
var enNrAr = nr.GetBytes().Concat(ar.GetBytes()).ToArray();
var enNrArParity = new byte[8];
crapto1.Encrypt(enNrAr, enNrArParity, 0, 4, true);
crapto1.Encrypt(enNrAr, enNrArParity, 4, 4);
Write("[Nr,suc2(Nt)]: ");
PrintHex(enNrAr, 8);
// 送出[Nr,suc2(Nt)]
device.InitiatorTransceiveBits(enNrAr, 64, enNrArParity, abtRx, MAX_FRAME_LEN, null);
var enAt = new byte[4];
Array.Copy(abtRx, enAt, 4);
Write(" [suc3(Nt)]: ");
PrintHex(enAt, 4);
// 解密[at]
var at = enAt.ToUInt32() ^ crapto1.Crypto1Word();
WriteLine("At: {0:x8} == suc3(Nt):{1:x8}", at, PrngSuccessor(nt, 96));
// 讀取 Block
for (byte i = 0; i < 4; i++)
{
ReadBlock(crapto1, i);
}
WriteLine();
WriteLine("Nested驗證 Block 4");
// Nested驗證 Block 4
abtAuthA[1] = 4;
Iso14443aCrcAppend(abtAuthA, 2);
var enAuth = abtAuthA.ToArray();
var enAuthParity = new byte[4];
crapto1.Encrypt(enAuth, enAuthParity, 0, 4);
device.InitiatorTransceiveBits(enAuth, 32, enAuthParity, abtRx, MAX_FRAME_LEN, null);
// 開始Nested驗證的新crypto1密鑰
crapto1 = new Crypto1(0xFFFFFFFFFFFFu);
Write(" 未解密Nt: ");
PrintHex(abtRx, 4);
var enNt = abtRx.ToUInt32();
// 初始化 crapto1 狀態 用加密的Nt，並解出明文nt
nt = enNt ^ crapto1.Crypto1Word(uid ^ enNt, true);
Write(" Nt: ");
PrintHex(nt.GetBytes(), 4);
// 自訂讀卡機端nonce
nr = 0x01020304u;
// Ar 為 suc2(nt)
ar = PrngSuccessor(nt, 64);
// 加密 Nr,suc2(Nt) 和 parity bit
enNrAr = nr.GetBytes().Concat(ar.GetBytes()).ToArray();
enNrArParity = new byte[8];
crapto1.Encrypt(enNrAr, enNrArParity, 0, 4, true);
crapto1.Encrypt(enNrAr, enNrArParity, 4, 4);
Write("[Nr,suc2(Nt)]: ");
PrintHex(enNrAr, 8);
// 送出[Nr,suc2(Nt)]
var res = device.InitiatorTransceiveBits(enNrAr, 64, enNrArParity, abtRx, MAX_FRAME_LEN, null);
enAt = new byte[4];
Array.Copy(abtRx, enAt, 4);
Write(" [suc3(Nt)]: ");
PrintHex(enAt, 4);
// 解密[at]
at = enAt.ToUInt32() ^ crapto1.Crypto1Word();
WriteLine("At: {0:x8} == suc3(Nt):{1:x8}", at, PrngSuccessor(nt, 96));
// 寫入 Block4
WriteBlock(crapto1, 4, new byte[16] {
65, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16
});
// 讀取 Block
for (byte i = 4; i < 8; i++)
{
ReadBlock(crapto1, i);
}
WriteLine();
// device.DeviceSetPropertyBool(NfcProperty.HandleParity, true);
// Done, halt the tag now
Iso14443aCrcAppend(abtHalt, 2);
TransmitBytes(abtHalt, 4);
}
}
catch (Exception ex)
{
WriteLine(ex.Message);
Environment.Exit(1);
}
WriteLine();
WriteLine("Found tag with");
Write(" UID: ");
switch (szCL)
{
case 1:
Write("{0:x2}{1:x2}{2:x2}{3:x2}", abtRawUid[0], abtRawUid[1], abtRawUid[2], abtRawUid[3]);
break;
case 2:
Write("{0:x2}{1:x2}{2:x2}", abtRawUid[1], abtRawUid[2], abtRawUid[3]);
Write("{0:x2}{1:x2}{2:x2}{3:x2}", abtRawUid[4], abtRawUid[5], abtRawUid[6], abtRawUid[7]);
break;
case 3:
Write("{0:x2}{1:x2}{2:x2}", abtRawUid[1], abtRawUid[2], abtRawUid[3]);
Write("{0:x2}{1:x2}{2:x2}", abtRawUid[5], abtRawUid[6], abtRawUid[7]);
Write("{0:x2}{1:x2}{2:x2}{3:x2}", abtRawUid[8], abtRawUid[9], abtRawUid[10], abtRawUid[11]);
break;
}
WriteLine();
WriteLine("ATQA: {0:x2}{1:x2}", abtAtqa[1], abtAtqa[0]);
WriteLine(" SAK: {0:x2}", abtSak);
if (szAts > 1)
{ // if = 1, it's not actual ATS but error code
if (forceRats && !isoAtsSupported)
{
WriteLine(" RATS forced");
}
Write(" ATS: ");
PrintHex(abtAts, szAts);
}
ReadLine();
}
internal MifareClassicTag(IntPtr ptr, bool dispose, NfcDevice device, NfcTarget target) : base(ptr, dispose, device, target)
{
}
public NfcDeviceEventArgs(NfcDevice device)
{
Device = device;
}
internal GenericTag(IntPtr ptr, bool dispose, NfcDevice device, NfcTarget target) : base(ptr, dispose, device, target)
{
}
internal void RaiseDeviceDepartedEvent(NfcDevice device)
{
var dea = new NfcDeviceEventArgs(device);
DeviceDeparted(this, dea);
}
internal void RaiseDeviceArriveddEvent(NfcDevice device)
{
var args = new NfcDeviceEventArgs(device);
DeviceArrived(this, args);
}
public ProxiedNfcDevice(INfcAdapter adapter, NfcDevice device)
{
Device = device;
Adapter = adapter;
}
