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The source code/* * $Header: /cvsroot/mvnforum/myvietnam/src/net/myvietnam/mvncore/security/RandomGenerator.java,v 1.1 2005/01/25 08:30:00 minhnn Exp $ * $Author: minhnn $ * $Revision: 1.1 $ * $Date: 2005/01/25 08:30:00 $ * * ==================================================================== * * Copyright (C) 2002-2005 by MyVietnam.net * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version 2 * of the License, or any later version. * * All copyright notices regarding MyVietnam and MyVietnam CoreLib * MUST remain intact in the scripts and source code. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * * Correspondence and Marketing Questions can be sent to: * info@MyVietnam.net * * @author: Minh Nguyen minhnn@MyVietnam.net * @author: Mai Nguyen mai.nh@MyVietnam.net */ package net.myvietnam.mvncore.security; import org.apache.commons.lang.RandomStringUtils; public class RandomGenerator { // prevent instantiation private RandomGenerator() { } public static String getRandomMD5_Base64() { String randomString = getRandomString(); return Encoder.getMD5_Base64(randomString); } private static String getRandomString() { // generate a long string, idealy at least 128 characters StringBuffer randomString = new StringBuffer(128); randomString.append(String.valueOf(System.currentTimeMillis())); randomString.append(RandomStringUtils.randomAlphanumeric(30)); randomString.append(RandomStringUtils.randomNumeric(30)); randomString.append(String.valueOf(System.currentTimeMillis())); return randomString.toString(); } public static void main (String args[]) { System.out.println("getRandomString = " + getRandomString()); System.out.println("getRandomMD5_Base64 = " + getRandomMD5_Base64()); } } |
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