[Java] Passwort-Kodierung v9.0alq

[Flav]

import java.io.Serializable;

/**
 *
 * @author Flav
 */
public class Password {
    private static final int c(Object obj)
    {
        String s1 = obj.toString();
        int i1 = 0;
        int j1 = 0;
        int k1 = 0;
        int l1 = 0;
        for(int i2 = s1.length(); l1 < i2; l1++)
        {
            j1 = j1 * ((k1 & 3) == 3 ? 3 : 5) + s1.charAt(i2 - l1 - 1);
            k1 = i1 ^ j1;
            i1 = i1 * ((k1 & 4) != 0 ? 7 : 3) + s1.charAt((l1 * 43973) % i2);
        }

        return k1 >>> 26 ^ (j1 ^ i1) & 0x3ffffff;
    }

    public static String a(String s1, String s2)
    {
        int i1 = s1.length();
        int j1 = s2.length();
        int k1 = i1 ^ j1 << 4;
        if(i1 < 1)
            return s1;
        if(j1 < 1)
            return s2;
        int l1 = i1;
        if(j1 > l1)
            l1 = j1;
        StringBuffer stringbuffer = new StringBuffer(l1);
        for(int i2 = 0; i2 < l1; i2++)
            stringbuffer.append((char)(s1.charAt(i2 % i1) ^ s2.charAt(i2 % j1) ^ k1));

        return stringbuffer.toString();
    }

    private static int ah(String s1)
    {
        int i1 = 0;
        int j1 = 0;
        int k1 = 0;
        int l1 = s1.length();
        if(l1 < 19)
        {
            for(int i2 = l1 - 1; i2 >= 0; i2--)
            {
                i1 = i1 * 3 + s1.charAt(i2);
                j1 = j1 * 5 + s1.charAt(l1 - i2 - 1);
            }

        } else
        {
            int j2 = l1 / 19;
            for(int l2 = l1 - 1; l2 >= 0; l2 -= j2)
            {
                i1 = i1 * 5 + s1.charAt(l2);
                j1 = j1 * 3 + s1.charAt(l1 - l2 - 1);
            }

        }
        k1 = i1 ^ j1;
        return k1 & 0xffffff ^ k1 >> 24;
    }

    public static String a(Object obj, Serializable serializable)
    {
        String s1 = obj.toString();
        int i1 = s1.length();
        String s2 = serializable.toString();
        int j1 = s2.length();
        int k1 = j1 ^ i1 << 3;
        int l1 = i1;
        if(j1 < 1)
            return s1;
        if(i1 < 1)
            return s2;
        if(j1 > l1)
            l1 = j1;
        StringBuffer stringbuffer = new StringBuffer(l1);
        int i2 = s2.charAt(0);
        int j2 = s1.charAt(0);
        for(int l2 = 0; l2 < l1;)
        {
            if(i2 >= i1)
                i2 = 0;
            if(j2 >= j1)
                j2 = 0;
            stringbuffer.append((char)(k1 ^ s1.charAt(i2) ^ s2.charAt(j2)));
            l2++;
            i2++;
            j2++;
        }

        return stringbuffer.toString();
    }

    public static void main(String[] args) {
        String password = "PASSWORT";
        password = password.trim();

        if (password.isEmpty()) {
            password = " ";
        }

        String s5 = "xyz"; // password key
        int i1 = 0;
        String s6 = "tXx";
        s5 = a(s5, ((Serializable) ("GBVTUrWhMGF")));
        i1 = (s5.length() * 3) / 4;
        i1 = (s5.charAt(i1) + 1) % s5.length();
        s5 = (new StringBuilder()).append("").append(a((new StringBuilder()).append("").append(c(s5.substring(0, i1)) * c(s5.substring(0, i1))).toString(), ((Serializable) (s5.substring(i1))))).append(a((new StringBuilder()).append("").append(c(s5.substring(i1)) * c(s5.substring(i1))).append(0x52a6ab61).toString(), ((Serializable) (s5.substring(0, i1))))).toString();
        i1 = Math.abs((c(s5) ^ s5.length()) % s5.length());
        i1 = (s5.charAt(i1) + 19) % s5.length();
        if(i1 == 0)
            i1 = s5.length() / 2;
        s5 = (new StringBuilder()).append(a(s5.substring(i1), ((Serializable) ("NJ")))).append(s5.substring(0, i1)).toString();
        if(i1 % 7 != 5)
            s6 = "jlK";
        s5 = (new StringBuilder()).append(s6).append(s5).toString();

        int hash = ah(a(password, s5));
        System.out.println(hash);
    }
}

1-zu-1 aus dem Client übernommen wie der Decompiler es ausgespuckt hat, wird also nur für v9.0alq funktionieren.