[转]JetBrains IntelliJ IDEA 13 Keygen (Java Source Code)

转载：http://www.rover12421.com/2013/12/09/jetbrains-intellij-idea-13-keygen-java-source-code.html

JetBrains IntelliJ IDEA 13 Keygen :

import java.math.BigInteger;
import java.util.Date;
import java.util.Random;
import java.util.zip.CRC32;

public class Keygen
{
  /**
  * @param s
  * @param i
  * @param bytes
  * @return
  */
  public static short getCRC(String s, int i, byte bytes[])
  {
      CRC32 crc32 = new CRC32();
      if (s != null)
      {
          for (int j = ; j < s.length(); j++)
          {
              char c = s.charAt(j);
              crc32.update(c);
          }
      }
      crc32.update(i);
      crc32.update(i >> );
      crc32.update(i >> );
      crc32.update(i >> );
      for (int k = ; k < bytes.length - ; k++)
      {
          byte byte0 = bytes[k];
          crc32.update(byte0);
      }
      return (short) (int) crc32.getValue();
  }

  /**
  * @param biginteger
  * @return String
  */
  public static String encodeGroups(BigInteger biginteger)
  {
      BigInteger beginner1 = BigInteger.valueOf(0x39aa400L);
      StringBuilder sb = new StringBuilder();
      for (int i = ; biginteger.compareTo(BigInteger.ZERO) != ; i++)
      {
          int j = biginteger.mod(beginner1).intValue();
          String s1 = encodeGroup(j);
          if (i > )
          {
              sb.append("-");
          }
          sb.append(s1);
          biginteger = biginteger.divide(beginner1);
      }
      return sb.toString();
  }

  /**
  * @param i
  * @return
  */
  public static String encodeGroup(int i)
  {
      StringBuilder sb = new StringBuilder();
      for (int j = ; j < ; j++)
      {
          int k = i % ;
          char c;
          if (k < )
          {
              c = (char) ( + k);
          }
          else
          {
              c = (char) (( + k) - );
          }
          sb.append(c);
          i /= ;
      }
      return sb.toString();
  }

  /**
  * @param name
  * @param days
  * @param id
  * @param prtype
  * @return
  */
  public static String MakeKey(String name, int days, int id)
  {
      id %= ;
      byte bkey[] = new byte[];
      bkey[] = (byte) ; // Product type: IntelliJ IDEA is 1
      bkey[] = ; // version
      Date d = new Date();
      long ld = (d.getTime() >> );
      bkey[] = (byte) (ld & );
      bkey[] = (byte) ((ld >> ) & );
      bkey[] = (byte) ((ld >> ) & );
      bkey[] = (byte) ((ld >> ) & );
      days &= 0xffff;
      bkey[] = (byte) (days & );
      bkey[] = (byte) ((days >> ) & );
      bkey[] = ;
      bkey[] = -;
      bkey[] = ;
      bkey[] = ;
      int w = getCRC(name, id % , bkey);
      bkey[] = (byte) (w & );
      bkey[] = (byte) ((w >> ) & );
      BigInteger pow = new BigInteger("", );
      BigInteger mod = new BigInteger("86f71688cdd2612ca117d1f54bdae029", );
      BigInteger k0 = new BigInteger(bkey);
      BigInteger k1 = k0.modPow(pow, mod);
      String s0 = Integer.toString(id);
      String sz = "";
      while (s0.length() != )
      {
          s0 = sz.concat(s0);
      }
      s0 = s0.concat("-");
      String s1 = encodeGroups(k1);
      s0 = s0.concat(s1);
      return s0;
  }

  public static void main(String[] args)
  {
      if (args.length == )
      {
          System.err.printf("*** Usage: %s name%n", Keygen.class.getCanonicalName());
          System.exit();
      }
      Random r = new Random();
      System.out.println(MakeKey(args[], , r.nextInt()));
  }
}

如果不想输入参数则修改main函数：

public static void main(String[] args)
  {
      Random r = new Random();
      System.out.println(MakeKey(“xxx”, , r.nextInt()));
  }