/*
* Copyright (c) 1998-2011 Caucho Technology -- all rights reserved
*
* This file is part of Resin(R) Open Source
*
* Each copy or derived work must preserve the copyright notice and this
* notice unmodified.
*
* Resin Open Source 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
* (at your option) any later version.
*
* Resin Open Source 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, or any warranty
* of NON-INFRINGEMENT. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License
* along with Resin Open Source; if not, write to the
*
* Free Software Foundation, Inc.
* 59 Temple Place, Suite 330
* Boston, MA 02111-1307 USA
*
* @author Scott Ferguson
*/
package com.caucho.server.security;
import com.caucho.config.ConfigException;
import com.caucho.util.Base64;
import com.caucho.util.CharBuffer;
import com.caucho.util.L10N;
import javax.annotation.PostConstruct;
import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.security.MessageDigest;
/**
* Calculates a digest for the user and password.
*
* <p>If the realm is missing, the digest will calculate:
* <code><pre>
* MD5(user + ':' + password)
* </pre></code>
*
* <p>If the realm is specified, the digest will calculate:
* <code><pre>
* MD5(user + ':' + realm + ':' + password)
* </pre></code>
*
* <p>The second version matches the way HTTP digest authentication
* is handled, so it is the preferred method for storing passwords.
*
* <p>The returned result is the base64 encoding of the digest.
*/
public class PasswordDigest extends com.caucho.security.PasswordDigest {
}