Here you can find the source of md5Hash(byte[] data)
static public byte[] md5Hash(byte[] data)
//package com.java2s; /*/*from ww w . ja v a2 s . com*/ * DomUI Java User Interface - shared code * Copyright (c) 2010 by Frits Jalvingh, Itris B.V. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA * * See the "sponsors" file for a list of supporters. * * The latest version of DomUI and related code, support and documentation * can be found at http://www.domui.org/ * The contact for the project is Frits Jalvingh <jal@etc.to>. */ import java.security.MessageDigest; import java.security.NoSuchAlgorithmException; public class Main { /** * Returns the MD5 hash for the data passed. */ static public byte[] md5Hash(byte[] data) { MessageDigest md; try { md = MessageDigest.getInstance("MD5"); } catch (NoSuchAlgorithmException x) { throw new RuntimeException("MISSING MANDATORY SECURITY DIGEST PROVIDER MD5: " + x.getMessage()); } md.update(data); return md.digest(); } /** * Returns the MD5 hash for the data passed. */ static public byte[] md5Hash(byte[][] data) { MessageDigest md; try { md = MessageDigest.getInstance("MD5"); } catch (NoSuchAlgorithmException x) { throw new RuntimeException("MISSING MANDATORY SECURITY DIGEST PROVIDER MD5: " + x.getMessage()); } for (byte[] buf : data) md.update(buf); return md.digest(); } }