Awesome

globalplatform.net

An open source implementation for Global Platform specification for .Net Framework.

globalplatform.net generates APDU messages but does not send commands directly to the card. It hands the message to developer. Therfore you may use this library to setup a secure channel over TCP/IP.

The following code snippet shows how to use it:

    SCardContext context = new SCardContext();
    context.Establish(SCardScope.System);
    string[] readers = context.GetReaders();
    IsoReader isoReader = new IsoReader(context, readers[3], SCardShareMode.Shared, SCardProtocol.Any, false);
    CommandApdu apdu = new CommandApdu(IsoCase.Case4Short, isoReader.ActiveProtocol)
    {
        CLA = 0x00,
        Instruction = InstructionCode.SelectFile,
        P1 = 0x04,
        P2 = 0x00,
        Data = new byte[] { 0xa0, 0x00, 0x00, 0x00, 0x03, 0x00, 0x00, 0x00 }

    };

    Response response = isoReader.Transmit(apdu);

    GlobalPlatform gp = new GlobalPlatform();
    KeySet scKeys = new KeySet();
    scKeys.MacKey = new Key("404142434445464748494a4b4c4d4e4f");
    scKeys.EncKey = new Key("404142434445464748494a4b4c4d4e4f");
    scKeys.KekKey = new Key("404142434445464748494a4b4c4d4e4f");
    CommandAPDU initUpdate = gp.CreateInitUpdateCommand(scKeys,
        SecurityLevel.C_DECRYPTION | SecurityLevel.C_MAC, GlobalPlatform.SCP_ANY, GlobalPlatform.IMPL_OPTION_ANY);
    apdu = new CommandApdu(IsoCase.Case4Short, isoReader.ActiveProtocol)
    {
        CLA = (byte)initUpdate.CLA,
        INS = (byte)initUpdate.INS,
        P1 = (byte)initUpdate.P1,
        P2 = (byte)initUpdate.P2,
        Data = initUpdate.Data
    };
    response = isoReader.Transmit(apdu);
    if (response.SW1 == 0x6C)
    {
        apdu = new CommandApdu(IsoCase.Case2Short, isoReader.ActiveProtocol)
        {
            CLA = 0x00,
            Instruction = InstructionCode.GetResponse,
            P1 = 0x00,
            P2 = 0x00,
            Le = response.SW2

        };

        response = isoReader.Transmit(apdu);

    }

    byte[] responseData = response.GetData();

    gp.ProcessInitUpdateResponse(new ResponseAPDU(response.SW1, response.SW2, responseData));

    CommandAPDU extAuth = gp.CreateExternalAuthCommand();
    apdu = new CommandApdu(IsoCase.Case3Short, isoReader.ActiveProtocol)
    {
        CLA = (byte)extAuth.CLA,
        INS = (byte)extAuth.INS,
        P1 = (byte)extAuth.P1,
        P2 = (byte)extAuth.P2,
        Data = extAuth.Data
    };

    response = isoReader.Transmit(apdu);

    gp.ProcessExternalAuthResponse(new ResponseAPDU(response.SW1, response.SW2, response.GetData()));

    Key newMacKey = new Key("505152535455565758595a5b5c5d5e5f", 0, 0);
    Key newEncKey = new Key("505152535455565758595a5b5c5d5e5f", 1, 0);
    Key newKekKey = new Key("505152535455565758595a5b5c5d5e5f", 2, 0);

    List<Key> newKeys = new List<Key>();
    newKeys.Add(newMacKey);
    newKeys.Add(newEncKey);
    newKeys.Add(newKekKey);

    CommandAPDU putKey = gp.CreatePutKeyCommand(newKeys, true, false, GlobalPlatform.KEY_FORMAT_1);

    apdu = new CommandApdu(IsoCase.Case3Short, isoReader.ActiveProtocol)
    {
        CLA = (byte)putKey.CLA,
        INS = (byte)putKey.INS,
        P1 = (byte)putKey.P1,
        P2 = (byte)putKey.P2,
        Data = putKey.Data
    };

    response = isoReader.Transmit(apdu);
    if (response.SW1 == 0x6C)
    {
        apdu = new CommandApdu(IsoCase.Case2Short, isoReader.ActiveProtocol)
        {
            CLA = 0x00,
            Instruction = InstructionCode.GetResponse,
            P1 = 0x00,
            P2 = 0x00,
            Le = response.SW2

        };

        response = isoReader.Transmit(apdu);

    }

}