DlinkKeygen.java

/*
 * Copyright 2012 Rui Araújo, Luís Fonseca
 *
 * This file is part of Router Keygen.
 *
 * Router Keygen is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * 
 * Router Keygen is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with Router Keygen.  If not, see <http://www.gnu.org/licenses/>.
 */
package org.exobel.routerkeygen.algorithms;

import android.os.Parcel;
import android.os.Parcelable;

import org.exobel.routerkeygen.R;

import java.util.List;

/**
 * Link:http://fodi.me/codigo-fonte-wpa-dlink-php-c/
 *
 * @author Rui Araújo
 */
public class DlinkKeygen extends Keygen {

    public static final Parcelable.Creator<DlinkKeygen> CREATOR = new Parcelable.Creator<DlinkKeygen>() {
        public DlinkKeygen createFromParcel(Parcel in) {
            return new DlinkKeygen(in);
        }

        public DlinkKeygen[] newArray(int size) {
            return new DlinkKeygen[size];
        }
    };
    private final static char[] hash = {'X', 'r', 'q', 'a', 'H', 'N',
            'p', 'd', 'S', 'Y', 'w',
            '8', '6', '2', '1', '5'};

    public DlinkKeygen(String ssid, String mac) {
        super(ssid, mac);
    }

    private DlinkKeygen(Parcel in) {
        super(in);
    }

    @Override
    public int getSupportState() {
        if (getSsidName().matches("(DL|dl)ink-[0-9a-fA-F]{6}"))
            return SUPPORTED;
        return UNLIKELY_SUPPORTED;
    }

    @Override
    public List<String> getKeys() {
        if (getMacAddress().equals("")) {
            setErrorCode(R.string.msg_nomac);
            return null;
        }
        final char[] key = new char[20];
        final String mac = getMacAddress();
        key[0] = mac.charAt(11);
        key[1] = mac.charAt(0);

        key[2] = mac.charAt(10);
        key[3] = mac.charAt(1);

        key[4] = mac.charAt(9);
        key[5] = mac.charAt(2);

        key[6] = mac.charAt(8);
        key[7] = mac.charAt(3);

        key[8] = mac.charAt(7);
        key[9] = mac.charAt(4);

        key[10] = mac.charAt(6);
        key[11] = mac.charAt(5);

        key[12] = mac.charAt(1);
        key[13] = mac.charAt(6);

        key[14] = mac.charAt(8);
        key[15] = mac.charAt(9);

        key[16] = mac.charAt(11);
        key[17] = mac.charAt(2);

        key[18] = mac.charAt(4);
        key[19] = mac.charAt(10);
        char[] newkey = new char[20];
        char t;
        int index;
        for (int i = 0; i < 20; i++) {
            t = key[i];
            if ((t >= '0') && (t <= '9'))
                index = t - '0';
            else {
                t = Character.toUpperCase(t);
                if ((t >= 'A') && (t <= 'F'))
                    index = t - 'A' + 10;
                else {
                    setErrorCode(R.string.msg_dlinkerror);
                    return null;
                }
            }
            newkey[i] = hash[index];
        }
        addPassword(String.valueOf(newkey, 0, 20));
        return getResults();
    }

}