package sega.a7;

import javacard.framework.APDU;
import javacard.framework.Applet;
import javacard.framework.Util;
import javacard.security.MessageDigest;
import javacard.security.RandomData;
import javacardx.apdu.ExtendedLength;

public class A7Firm extends Applet implements ExtendedLength {
    private CommandServer m_ee_server = new CommandServer();
    MessageDigest m_ee_sha1 = MessageDigest.getInstance((byte) 1, false);
    HmacSha1 m_ee_hmacSha1 = new HmacSha1();
    RandomData m_ee_random = RandomData.getInstance((byte) 2);
    private AppData m_ee_data = new AppData(this.m_ee_random);

    private MakePacket m_ee_makePacket = new MakePacket();
    private Crypt m_ee_crypt = new Crypt();
    private AppBuffer m_ee_buffer = new AppBuffer();

    public boolean select() {
        if (!super.select())
            return false;
        this.m_ee_buffer.clear_ramD();
        this.m_ee_data.init();
        this.m_ee_server.select();
        return true;
    }

    public A7Firm() {
        byte[] modulus = this.m_ee_data.getRsaDefaultPriModulus_ee();
        byte[] exponent = this.m_ee_data.getRsaDefaultPriExponent_ee();
        byte[] tmp = this.m_ee_data.getCryptBuffer_ramD();
        Util.arrayFillNonAtomic(tmp, (short) 0, (short) tmp.length, (byte) -1);

        // Zero all the keys
        this.m_ee_crypt.init(tmp, (short) 0, (short) tmp.length, tmp, (short) 0, (short) tmp.length,
                Crypt.AES_MODE_CKEY_DECRYPT);
        this.m_ee_crypt.init(tmp, (short) 0, (short) tmp.length, tmp, (short) 0, (short) tmp.length,
                Crypt.AES_MODE_CKEY_ENCRYPT);
        this.m_ee_crypt.init(tmp, (short) 0, (short) tmp.length, tmp, (short) 0, (short) tmp.length,
                Crypt.AES_MODE_GKEY_DECRYPT);
        this.m_ee_crypt.init(tmp, (short) 0, (short) tmp.length, tmp, (short) 0, (short) tmp.length,
                Crypt.AES_MODE_GKEY_ENCRYPT);
        this.m_ee_crypt.init(modulus, (short) 0, (short) modulus.length, exponent, (short) 0, (short) exponent.length,
                Crypt.RSA_MODE_DECRYPT);

        this.m_ee_server.setNoCommand(new NoCommand((short) -1, this.m_ee_data, this.m_ee_makePacket, this.m_ee_sha1));
        this.m_ee_server.attachCommand(
                new SessionOpen(AppConfig.A7_ORD_SESSION_OPEN, this.m_ee_data, this.m_ee_makePacket, this.m_ee_sha1));
        this.m_ee_server.attachCommand(
                new SessionClose(AppConfig.A7_ORD_SESSION_CLOSE, this.m_ee_data, this.m_ee_makePacket, this.m_ee_sha1));
        this.m_ee_server.attachCommand(new AuthStart(AppConfig.A7_ORD_AUTH_START, this.m_ee_data, this.m_ee_makePacket,
                this.m_ee_sha1, this.m_ee_hmacSha1, this.m_ee_crypt));
        this.m_ee_server.attachCommand(new HmacChange(AppConfig.A7_ORD_HMAC_CHANGE, this.m_ee_data,
                this.m_ee_makePacket, this.m_ee_sha1, this.m_ee_hmacSha1, this.m_ee_crypt));
        this.m_ee_server.attachCommand(new KeyChange(AppConfig.A7_ORD_KEY_CHANGE, this.m_ee_data, this.m_ee_makePacket,
                this.m_ee_sha1, this.m_ee_hmacSha1, this.m_ee_crypt));
        this.m_ee_server.attachCommand(
                new LvGet(AppConfig.A7_ORD_LV_GET, this.m_ee_data, this.m_ee_makePacket, this.m_ee_sha1));
        this.m_ee_server.attachCommand(new KeychipInfoWrite(AppConfig.A7_ORD_KEYCHIP_INFO_WRITE, this.m_ee_data,
                this.m_ee_makePacket, this.m_ee_sha1, this.m_ee_hmacSha1, this.m_ee_crypt));
        this.m_ee_server.attachCommand(new KeychipInfoRead(AppConfig.A7_ORD_KEYCHIP_INFO_READ, this.m_ee_data,
                this.m_ee_makePacket, this.m_ee_sha1, this.m_ee_hmacSha1, this.m_ee_crypt));
        this.m_ee_server.attachCommand(new GkeyWrite(AppConfig.A7_ORD_GKEY_WRITE, this.m_ee_data, this.m_ee_makePacket,
                this.m_ee_sha1, this.m_ee_hmacSha1, this.m_ee_crypt));
        this.m_ee_server.attachCommand(new GkeyEnc(AppConfig.A7_ORD_GKEY_ENC, this.m_ee_data, this.m_ee_makePacket,
                this.m_ee_sha1, this.m_ee_hmacSha1, this.m_ee_crypt));
        this.m_ee_server.attachCommand(new GkeyDec(AppConfig.A7_ORD_GKEY_DEC, this.m_ee_data, this.m_ee_makePacket,
                this.m_ee_sha1, this.m_ee_hmacSha1, this.m_ee_crypt));
        this.m_ee_server.attachCommand(new SflagWrite(AppConfig.A7_ORD_SFLAG_WRITE, this.m_ee_data,
                this.m_ee_makePacket, this.m_ee_sha1, this.m_ee_hmacSha1, this.m_ee_crypt));
        this.m_ee_server.attachCommand(
                new ErrorGet(AppConfig.A7_ORD_ERROR_GET, this.m_ee_data, this.m_ee_makePacket, this.m_ee_sha1));
        this.m_ee_server.attachCommand(
                new LvEnable(AppConfig.A7_ORD_LV_ENABLE, this.m_ee_data, this.m_ee_makePacket, this.m_ee_sha1));
        this.m_ee_server.attachCommand(new EepInit(AppConfig.A7_ORD_EEP_INIT, this.m_ee_data, this.m_ee_makePacket,
                this.m_ee_sha1, this.m_ee_hmacSha1, this.m_ee_crypt));
        this.m_ee_server.attachCommand(
                new VerGet(AppConfig.A7_ORD_VER_GET, this.m_ee_data, this.m_ee_makePacket, this.m_ee_sha1));
        this.m_ee_server.attachCommand(new PrivkeyModulusWrite(AppConfig.A7_ORD_GPRIKEY_MODULUS_WRITE, this.m_ee_data,
                this.m_ee_makePacket, this.m_ee_sha1, this.m_ee_hmacSha1, this.m_ee_crypt));
        this.m_ee_server.attachCommand(new PrikeyExponentWrite(AppConfig.A7_ORD_GPRIKEY_EXPONENS_WRITE, this.m_ee_data,
                this.m_ee_makePacket, this.m_ee_sha1, this.m_ee_hmacSha1, this.m_ee_crypt));
        this.m_ee_server.attachCommand(new UdataWrite(AppConfig.A7_ORD_UDATA_WRITE, this.m_ee_data,
                this.m_ee_makePacket, this.m_ee_sha1, this.m_ee_hmacSha1, this.m_ee_crypt));
        this.m_ee_server.attachCommand(new UdataRead(AppConfig.A7_ORD_UDATA_READ, this.m_ee_data, this.m_ee_makePacket,
                this.m_ee_sha1, this.m_ee_hmacSha1, this.m_ee_crypt));
        this.m_ee_server.attachCommand(new StorageWrite(AppConfig.A7_ORD_STORAGE_WRITE, this.m_ee_data,
                this.m_ee_makePacket, this.m_ee_sha1, this.m_ee_hmacSha1, this.m_ee_crypt));
        this.m_ee_server.attachCommand(new StorageRead(AppConfig.A7_ORD_STORAGE_READ, this.m_ee_data,
                this.m_ee_makePacket, this.m_ee_sha1, this.m_ee_hmacSha1, this.m_ee_crypt));
        this.m_ee_server.attachCommand(new RanGet(AppConfig.A7_ORD_RAN_GET, this.m_ee_data, this.m_ee_makePacket,
                this.m_ee_sha1, this.m_ee_hmacSha1, this.m_ee_crypt, this.m_ee_random));
        this.m_ee_server.attachCommand(new PlayCountIncrement(AppConfig.A7_ORD_PLAY_COUNT_INCREMENT, this.m_ee_data,
                this.m_ee_makePacket, this.m_ee_sha1, this.m_ee_hmacSha1, this.m_ee_crypt));
        this.m_ee_server.attachCommand(new PlayCountRead(AppConfig.A7_ORD_PLAY_COUNT_READ, this.m_ee_data,
                this.m_ee_makePacket, this.m_ee_sha1, this.m_ee_hmacSha1, this.m_ee_crypt, this.m_ee_random));
        this.m_ee_server.attachCommand(new TraceDataInfoWrite(AppConfig.A7_ORD_TRACE_DATA_INFO_WRITE, this.m_ee_data,
                this.m_ee_makePacket, this.m_ee_sha1, this.m_ee_hmacSha1, this.m_ee_crypt));
        this.m_ee_server.attachCommand(new TraceDataInfoRead(AppConfig.A7_ORD_TRACE_DATA_INFO_READ, this.m_ee_data,
                this.m_ee_makePacket, this.m_ee_sha1, this.m_ee_hmacSha1, this.m_ee_crypt));
        this.m_ee_server.attachCommand(new StorageSizeGet(AppConfig.A7_ORD_STORAGE_SIZE_GET, this.m_ee_data,
                this.m_ee_makePacket, this.m_ee_sha1, this.m_ee_hmacSha1, this.m_ee_crypt, this.m_ee_random));
    }

    private short makeErrorPacket(short error, short cmd, byte[] sendPacket, short packetOffset, short packetLength) {
        this.m_ee_data.setLastError_ramD((short) error);
        this.m_ee_makePacket.setData(null, (short) 0, (short) 0, AppConfig.A7_TAG_RSP_COMMAND,
                (short) 26,
                (short) error, (short) cmd, null, (short) 0, (short) 0, null, (short) 0,
                (short) 0, null,
                (short) 0, (short) 0, sendPacket, packetOffset, packetLength,
                this.m_ee_sha1, null);
        return 26;
    }

    public void process(APDU apdu) {
        short ramD_sendSize = (short) 0;
        if (selectingApplet())
            return;
        byte[] ramD_packetData = apdu.getBuffer();
        if (this.m_ee_data.getSflag_ee() && this.m_ee_data.getLevel_ramD() == -1)
            return;

        if (this.m_ee_data.getLevel_ramD() == 0)
            this.m_ee_data.setLevel_ramD((byte) 1);

        short ramD_length = Util.getShort(ramD_packetData, (short) 5);
        boolean ramD_bRet = this.m_ee_buffer.setData_ramD(ramD_packetData, (short) 7, ramD_length);
        if (!ramD_bRet) {
            this.m_ee_buffer.clear_ramD();
            ramD_sendSize = makeErrorPacket(AppConfig.A7_FAIL, (short) 0, ramD_packetData, (short) 0, (short)ramD_packetData.length);
            apdu.setOutgoingAndSend((short) 0, (short) ramD_sendSize);
            return;
        }

        byte[] ramD_buffer = this.m_ee_buffer.getBuffer_ramD();
        short ramD_size = Util.getShort(ramD_buffer, AppConfig.A7_PARAMSIZE_OFFSET);
        if (ramD_size > this.m_ee_buffer.getBufferSize_ramD())
            return;

        try {
            ramD_sendSize = this.m_ee_server.execute(ramD_buffer, (short) 0, this.m_ee_buffer.getBufferSize_ramD(), ramD_packetData, (short) 0, (short) ramD_packetData.length);
        } catch (Exception e) {
            short ramD_cmd = Util.getShort(ramD_buffer, AppConfig.A7_COMMAND_OFFSET);
            this.m_ee_data.setLastError_ramD(AppConfig.A7_FAIL);
            ramD_sendSize = makeErrorPacket(AppConfig.A7_FAIL, ramD_cmd, ramD_packetData, (short) 0, (short) ramD_packetData.length);
        }

        this.m_ee_buffer.clear_ramD();
        if (ramD_sendSize != 0)
            apdu.setOutgoingAndSend((short) 0, ramD_sendSize);
    }

    public static void install(byte[] bArray, short bOffset, byte bLength) {
        (new PrivkeyModulusWrite()).register(bArray, (short) ((short) bOffset + 1),
                bArray[(short) bOffset]);
    }

    public void deselect() {
        super.deselect();
    }
}