Here you can find the source of decryptChar(String pwd, int offset, int pos)
private static char decryptChar(String pwd, int offset, int pos)
//package com.java2s; /*/* w w w . j a va 2 s .c om*/ * ? Copyright IBM Corp. 2012-2013 * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at: * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or * implied. See the License for the specific language governing * permissions and limitations under the License. */ public class Main { private static int[] ENCRYPTION = new int[] { 187, 89, 189, 17, 45, 3, 0, 98, 79, 232, 65, 98, 75, 3, 224, 177 }; private static char decryptChar(String pwd, int offset, int pos) { int xor = ENCRYPTION[offset % ENCRYPTION.length]; char c1 = pwd.charAt(pos); char c2 = pwd.charAt(pos + 1); char c = (char) (((c1 - (int) 'A') * 16 + (c2 - (int) 'A')) ^ xor); return c; } }