001package org.apache.archiva.redback.integration.filter.authentication.digest;
002
003/*
004 * Licensed to the Apache Software Foundation (ASF) under one
005 * or more contributor license agreements.  See the NOTICE file
006 * distributed with this work for additional information
007 * regarding copyright ownership.  The ASF licenses this file
008 * to you under the Apache License, Version 2.0 (the
009 * "License"); you may not use this file except in compliance
010 * with the License.  You may obtain a copy of the License at
011 *
012 * http://www.apache.org/licenses/LICENSE-2.0
013 *
014 * Unless required by applicable law or agreed to in writing,
015 * software distributed under the License is distributed on an
016 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
017 * KIND, either express or implied.  See the License for the
018 * specific language governing permissions and limitations
019 * under the License.
020 */
021
022import java.security.MessageDigest;
023import java.security.NoSuchAlgorithmException;
024
025/**
026 * Digest
027 *
028 * @author <a href="mailto:joakim@erdfelt.com">Joakim Erdfelt</a>
029 *
030 */
031public class Digest
032{
033    public static String md5Hex( String data )
034    {
035        MessageDigest digest = getDigest( "MD5" );
036        return Hex.encode( digest.digest( data.getBytes() ) );
037    }
038
039    public static MessageDigest getDigest( String algorithm )
040    {
041        try
042        {
043            return MessageDigest.getInstance( algorithm );
044        }
045        catch ( NoSuchAlgorithmException e )
046        {
047            throw new RuntimeException( "Error initializing MessageDigest: " + e.getMessage(), e );
048        }
049    }
050}