Here you can find the source of encrypt(String s)
public static String encrypt(String s)
//package com.java2s; /**/*from w ww. j ava 2s . c o m*/ * Copyright ? 2013 - 2017 WaveMaker, Inc. * * 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 final byte[] KEY = { 12, 7, 28, 127, 97, 69, 77, 122, 11 }; private static final String ENCRYPTED_PREFIX = "wm_-+"; private static final String ENCRYPTED_SUFFIX = "==wm-_"; public static String encrypt(String s) { s = ENCRYPTED_PREFIX + s + ENCRYPTED_SUFFIX; StringBuilder rtn = new StringBuilder(s.length()); byte[] bytes = s.getBytes(); for (int i = 0; i < bytes.length; i++) { rtn.append(encrypt(bytes[i], KEY[i % KEY.length])); } return rtn.toString(); } private static String encrypt(byte b, byte key) { b = (byte) (b ^ key); String rtn = Integer.toHexString(b); if (rtn.length() == 1) { rtn = "0" + rtn; } return rtn; } }