Apache Commons Codec library provides implementations of common encoders and decoders such as Base64, Hex, Phonetic and URLs.

Apache Commons Codec Source Code files are provided in both binary packge (commons-codec-3.15-bin.zip) and source package (commons-codec-3.15-src.zip). You can download them at Apache Commons Codec Website.

Apache Commons Codec Source Code has no dependencies. You can compile it to generate your own version of Apache Commons Codec JAR file.

The source code of Apache Commons Codec 1.15 is provided below:

⏎ org/apache/commons/codec/digest/HmacAlgorithms.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.apache.commons.codec.digest;

/**
 * Standard {@link HmacUtils} algorithm names from the <cite>Java Cryptography Architecture Standard Algorithm Name
 * Documentation</cite>.
 *
 * <p>
 * <strong>Note: Not all JCE implementations support all the algorithms in this enum.</strong>
 * </p>
 *
 * @see <a href="http://docs.oracle.com/javase/6/docs/technotes/guides/security/SunProviders.html#SunJCEProvider"> Java
 *      6 Cryptography Architecture Sun Providers Documentation</a>
 * @see <a href="http://docs.oracle.com/javase/7/docs/technotes/guides/security/SunProviders.html#SunJCEProvider"> Java
 *      7 Cryptography Architecture Sun Providers Documentation</a>
 * @see <a href="http://docs.oracle.com/javase/8/docs/technotes/guides/security/SunProviders.html#SunJCEProvider"> Java
 *      8 Cryptography Architecture Sun Providers Documentation</a>
 * @see <a href=
 *      "http://docs.oracle.com/javase/9/security/oracleproviders.htm#JSSEC-GUID-A47B1249-593C-4C38-A0D0-68FA7681E0A7">
 *      Java 9 Cryptography Architecture Sun Providers Documentation</a>
 * @since 1.10
 */
public enum HmacAlgorithms {

    /**
     * The HmacMD5 Message Authentication Code (MAC) algorithm specified in RFC 2104 and RFC 1321.
     * <p>
     * Every implementation of the Java platform is required to support this standard MAC algorithm.
     * </p>
     */
    HMAC_MD5("HmacMD5"),

    /**
     * The HmacSHA1 Message Authentication Code (MAC) algorithm specified in RFC 2104 and FIPS PUB 180-2.
     * <p>
     * Every implementation of the Java platform is required to support this standard MAC algorithm.
     * </p>
     */
    HMAC_SHA_1("HmacSHA1"),

    /**
     * The HmacSHA224 Message Authentication Code (MAC) algorithm specified in RFC 2104 and FIPS PUB 180-2.
     * <p>
     * Every implementation of the Java 8+ platform is required to support this standard MAC algorithm.
     * </p>
     * @since 1.11
     */
    HMAC_SHA_224("HmacSHA224"),

    /**
     * The HmacSHA256 Message Authentication Code (MAC) algorithm specified in RFC 2104 and FIPS PUB 180-2.
     * <p>
     * Every implementation of the Java platform is required to support this standard MAC algorithm.
     * </p>
     */
    HMAC_SHA_256("HmacSHA256"),

    /**
     * The HmacSHA384 Message Authentication Code (MAC) algorithm specified in RFC 2104 and FIPS PUB 180-2.
     * <p>
     * This MAC algorithm is <em>optional</em>; not all implementations support it.
     * </p>
     */
    HMAC_SHA_384("HmacSHA384"),

    /**
     * The HmacSHA512 Message Authentication Code (MAC) algorithm specified in RFC 2104 and FIPS PUB 180-2.
     * <p>
     * This MAC algorithm is <em>optional</em>; not all implementations support it.
     * </p>
     */
    HMAC_SHA_512("HmacSHA512");

    private final String name;

    private HmacAlgorithms(final String algorithm) {
        this.name = algorithm;
    }

    /**
     * Gets the algorithm name.
     *
     * @return the algorithm name.
     * @since 1.11
     */
    public String getName() {
        return name;
    }

    /**
     * The algorithm name
     *
     * @see <a href="http://docs.oracle.com/javase/6/docs/technotes/guides/security/SunProviders.html#SunJCEProvider">
     *      Java 6 Cryptography Architecture Sun Providers Documentation</a>
     * @see <a href="http://docs.oracle.com/javase/7/docs/technotes/guides/security/SunProviders.html#SunJCEProvider">
     *      Java 7 Cryptography Architecture Sun Providers Documentation</a>
     * @see <a href="http://docs.oracle.com/javase/8/docs/technotes/guides/security/SunProviders.html#SunJCEProvider">
     *      Java 8 Cryptography Architecture Sun Providers Documentation</a>
     * @see <a href=
     *      "http://docs.oracle.com/javase/9/security/oracleproviders.htm#JSSEC-GUID-A47B1249-593C-4C38-A0D0-68FA7681E0A7">
     *      Java 9 Cryptography Architecture Sun Providers Documentation</a>
     * @return The algorithm name ("HmacSHA512" for example)
     */
    @Override
    public String toString() {
        return name;
    }

}

⏎ org/apache/commons/codec/digest/HmacAlgorithms.java

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File name: commons-codec-1.15-sources.jar
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Release date: 2020-09-01
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