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MD5.java
Package: jforum-2.1.8-src.zip [view]
Upload User: gdxydsw
Upload Date: 2019-01-29
Package Size: 16721k
Code Size: 3k
Category:
Java Develop
Development Platform:
Java
- /*
- * Copyright (c) JForum Team
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms,
- * with or without modification, are permitted provided
- * that the following conditions are met:
- *
- * 1) Redistributions of source code must retain the above
- * copyright notice, this list of conditions and the
- * following disclaimer.
- * 2) Redistributions in binary form must reproduce the
- * above copyright notice, this list of conditions and
- * the following disclaimer in the documentation and/or
- * other materials provided with the distribution.
- * 3) Neither the name of "Rafael Steil" nor
- * the names of its contributors may be used to endorse
- * or promote products derived from this software without
- * specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT
- * HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
- * EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
- * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
- * THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES
- * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
- * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
- * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
- * IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
- * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE
- *
- * This file creation date: Mar 29, 2003 / 1:15:50 AM
- * The JForum Project
- * http://www.jforum.net
- */
- package net.jforum.util;
- import java.security.MessageDigest;
- import java.security.NoSuchAlgorithmException;
- import net.jforum.exceptions.ForumException;
- /**
- * Encodes a string using MD5 hashing
- *
- * @author Rafael Steil
- * @version $Id: MD5.java,v 1.7 2006/08/23 02:13:44 rafaelsteil Exp $
- */
- public class MD5
- {
- /**
- * Encodes a string
- *
- * @param str String to encode
- * @return Encoded String
- * @throws NoSuchAlgorithmException
- */
- public static String crypt(String str)
- {
- if (str == null || str.length() == 0) {
- throw new IllegalArgumentException("String to encript cannot be null or zero length");
- }
- StringBuffer hexString = new StringBuffer();
- try {
- MessageDigest md = MessageDigest.getInstance("MD5");
- md.update(str.getBytes());
- byte[] hash = md.digest();
- for (int i = 0; i < hash.length; i++) {
- if ((0xff & hash[i]) < 0x10) {
- hexString.append("0" + Integer.toHexString((0xFF & hash[i])));
- }
- else {
- hexString.append(Integer.toHexString(0xFF & hash[i]));
- }
- }
- }
- catch (NoSuchAlgorithmException e) {
- throw new ForumException("" + e);
- }
- return hexString.toString();
- }
- }