Separating security into a part that depends only on the JPA and into a

[utils] / security / impl / src / main / java / org / wamblee / security / encryption / Md5HexMessageDigester.java

diff --git a/security/impl/src/main/java/org/wamblee/security/encryption/Md5HexMessageDigester.java b/security/impl/src/main/java/org/wamblee/security/encryption/Md5HexMessageDigester.java
new file mode 100644 (file)
index 0000000..e509c28
--- /dev/null
+++ b/security/impl/src/main/java/org/wamblee/security/encryption/Md5HexMessageDigester.java
@@ -0,0 +1,53 @@
+/*
+ * Copyright 2005-2010 the original author or authors.
+ * 
+ * Licensed 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.wamblee.security.encryption;
+
+import org.apache.commons.codec.binary.Hex;
+
+import java.security.MessageDigest;
+import java.security.NoSuchAlgorithmException;
+
+/**
+ * MD5 Hex encoder.
+ * 
+ * @author Erik Brakkee
+ */
+public class Md5HexMessageDigester implements MessageDigester {
+    /**
+     * Constructs the message digester.
+     * 
+     */
+    public Md5HexMessageDigester() {
+        // Empty
+    }
+
+    /*
+     * (non-Javadoc)
+     * 
+     * @see org.wamblee.security.MessageDigester#hash(java.lang.String)
+     */
+    public String hash(String aValue) {
+        try {
+            MessageDigest digest = MessageDigest.getInstance("MD5");
+            byte[] result = digest.digest(aValue.getBytes());
+            char[] charResult = Hex.encodeHex(result);
+
+            return new String(charResult);
+        } catch (NoSuchAlgorithmException e) {
+            throw new IllegalArgumentException("MD5 not supported????");
+        }
+    }
+}