PirelliKeygen.java :  » UnTagged » android-thomson-key-solver » org » exobel » routerkeygen » Android Open Source

package org.exobel.routerkeygen;

import java.io.UnsupportedEncodingException;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;

import android.content.res.Resources;
import android.os.Handler;
import android.os.Message;


public class PirelliKeygen extends KeygenThread{
  
  public PirelliKeygen(Handler h, Resources res) {
    super(h, res);
  }
  
  final byte[] saltMD5 = {
      0x22, 0x33, 0x11, 0x34, 0x02,
        (byte) 0x81, (byte) 0xFA, 0x22, 0x11, 0x41,
      0x68, 0x11,  0x12, 0x01, 0x05,
      0x22, 0x71, 0x42, 0x10, 0x66 };
  
  public void run(){

    if ( router == null)
      return;
    try {
      md = MessageDigest.getInstance("MD5");
    } catch (NoSuchAlgorithmException e1) {
      handler.sendMessage(Message.obtain(handler, ERROR_MSG , 
          resources.getString(R.string.msg_nomd5)));
      return;
    }
    if ( router.getEssid().length() != 12 ) 
    {
      handler.sendMessage(Message.obtain(handler, ERROR_MSG , 
          resources.getString(R.string.msg_errpirelli)));
      return;
    }
    
    byte [] routerESSID = new byte[6];
    for (int i = 0; i < 12; i += 2)
      routerESSID[i / 2] = (byte) ((Character.digit(router.getEssid().charAt(i), 16) << 4)
          + Character.digit(router.getEssid().charAt(i + 1), 16));

    md.reset();
    md.update(routerESSID);
    md.update(saltMD5);
    byte [] hash = md.digest();
    short [] key = new short[5];
    /*Grouping in five groups fo five bits*/
    key[0] = (short)( (hash[0] & 0xF8) >> 3 );
    key[1] = (short)(( (hash[0] & 0x07) << 2) | ( (hash[1] & 0xC0) >>6 ));
    key[2] = (short)((hash[1] & 0x3E) >> 1 );
    key[3] = (short)(( (hash[1] & 0x01) << 4) |  ((hash[2] & 0xF0) >> 4));
    key[4] = (short)(( (hash[2] & 0x0F) << 1) |  ((hash[3] & 0x80) >> 7) );
    for ( int i = 0 ; i < 5 ; ++i )
      if ( key[i] >= 0x0A )
        key[i] += 0x57;
    try {
      pwList.add(StringUtils.getHexString(key).toUpperCase());
    } catch (UnsupportedEncodingException e) {}
    handler.sendEmptyMessage(RESULTS_READY);
    return;
  }

}