001/*
002 * Licensed to the Apache Software Foundation (ASF) under one or more
003 * contributor license agreements.  See the NOTICE file distributed with
004 * this work for additional information regarding copyright ownership.
005 * The ASF licenses this file to You under the Apache License, Version 2.0
006 * (the "License"); you may not use this file except in compliance with
007 * the License.  You may obtain a copy of the License at
008 *
009 *      http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the License for the specific language governing permissions and
015 * limitations under the License.
016 */
017
018package org.apache.commons.codec.digest;
019
020import java.security.MessageDigest;
021
022/**
023 * Standard {@link MessageDigest} algorithm names from the <cite>Java Cryptography Architecture Standard Algorithm Name
024 * Documentation</cite>.
025 * <p>
026 * This class is immutable and thread-safe.
027 * </p>
028 * TODO This should be an enum.
029 *
030 * @see <a href="http://docs.oracle.com/javase/6/docs/technotes/guides/security/StandardNames.html">Java Cryptography
031 *      Architecture Standard Algorithm Name Documentation</a>
032 * @since 1.7
033 * @version $Id: MessageDigestAlgorithms.html 928559 2014-11-10 02:53:54Z ggregory $
034 */
035public class MessageDigestAlgorithms {
036
037    private MessageDigestAlgorithms() {
038        // cannot be instantiated.
039    }
040
041    /**
042     * The MD2 message digest algorithm defined in RFC 1319.
043     */
044    public static final String MD2 = "MD2";
045
046    /**
047     * The MD5 message digest algorithm defined in RFC 1321.
048     */
049    public static final String MD5 = "MD5";
050
051    /**
052     * The SHA-1 hash algorithm defined in the FIPS PUB 180-2.
053     */
054    public static final String SHA_1 = "SHA-1";
055
056    /**
057     * The SHA-256 hash algorithm defined in the FIPS PUB 180-2.
058     */
059    public static final String SHA_256 = "SHA-256";
060
061    /**
062     * The SHA-384 hash algorithm defined in the FIPS PUB 180-2.
063     */
064    public static final String SHA_384 = "SHA-384";
065
066    /**
067     * The SHA-512 hash algorithm defined in the FIPS PUB 180-2.
068     */
069    public static final String SHA_512 = "SHA-512";
070
071}