[CODEC-217] Add HmacAlgorithms.HMAC_SHA_224 (Java 8 only)

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/codec/trunk@1743952 13f79535-47bb-0310-9956-ffa450edef68

Author: garydgregory

src/changes/changes.xml

@@ -47,6 +47,7 @@ The <action> type attribute can be add,update,fix,remove.
       <action dev="ggregory" type="fix" issue="CODEC-207" due-to="Gary Gregory">Charsets Javadoc breaks build when using Java 8</action>         
       <action dev="ggregory" type="fix" issue="CODEC-199" due-to="Yossi Tamari">Bug in HW rule in Soundex</action>         
       <action dev="ggregory" type="fix" issue="CODEC-209" due-to="Gary Gregory">Javadoc for SHA-224 DigestUtils methods should mention Java 1.8.0 restriction instead of 1.4.0.</action>         
+      <action dev="ggregory" type="add" issue="CODEC-217" due-to="Gary Gregory">Add HmacAlgorithms.HMAC_SHA_224 (Java 8 only)</action>         
       <action dev="ggregory" type="add" issue="CODEC-213" due-to="Gary Gregory">Support JEP 287: SHA-3 Hash Algorithms</action>         
       <action dev="ggregory" type="add" issue="CODEC-212" due-to="Gary Gregory">Create a minimal Digest command line utility: org.apache.commons.codec.digest.Digest</action>         
       <action dev="ggregory" type="add" issue="CODEC-211" due-to="Gary Gregory">Create enum MessageDigestAlgorithm and deprecate class MessageDigestAlgorithms</action>         

src/main/java/org/apache/commons/codec/digest/HmacAlgorithms.java

@@ -48,6 +48,14 @@ public enum HmacAlgorithms {
      */
     HMAC_SHA_1("HmacSHA1"),
 
+    /**
+     * The HmacSHA256 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>
+     */
+    HMAC_SHA_224("HmacSHA224"),
+
     /**
      * The HmacSHA256 Message Authentication Code (MAC) algorithm specified in RFC 2104 and FIPS PUB 180-2.
      * <p>
@@ -90,5 +98,5 @@ private HmacAlgorithms(final String algorithm) {
     public String toString() {
         return algorithm;
     }
-
+    
 }