Index: lams_common/src/java/org/lamsfoundation/lams/util/HashUtil.java
===================================================================
diff -u
--- lams_common/src/java/org/lamsfoundation/lams/util/HashUtil.java	(revision 0)
+++ lams_common/src/java/org/lamsfoundation/lams/util/HashUtil.java	(revision a3babeb2dac0e7a334f0e7507607817c95c2ff07)
@@ -0,0 +1,53 @@
+/****************************************************************
+ * Copyright (C) 2005 LAMS Foundation (http://lamsfoundation.org)
+ * =============================================================
+ * License Information: http://lamsfoundation.org/licensing/lams/2.0/
+ * 
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2.0 
+ * as published by the Free Software Foundation.
+ * 
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307
+ * USA
+ * 
+ * http://www.gnu.org/licenses/gpl.txt
+ * ****************************************************************
+ */
+package org.lamsfoundation.lams.util;
+
+import java.security.MessageDigest;
+import java.security.NoSuchAlgorithmException;
+
+import org.apache.commons.codec.binary.Hex;
+
+/**
+ * @version
+ *
+ * <p>
+ * <a href="HashUtil.java.html"><i>View Source</i></a>
+ * </p>
+ *
+ * @author <a href="mailto:fyang@melcoe.mq.edu.au">Fei Yang</a>
+ *
+ * Created at 16:25:56 on 20/06/2006
+ */
+public class HashUtil {
+
+    public static String sha1(String plaintext) throws NoSuchAlgorithmException{
+        MessageDigest md = MessageDigest.getInstance("SHA1");
+        return new String(Hex.encodeHex(md.digest(plaintext.getBytes())));
+    }
+
+    public static String md5(String plaintext) throws NoSuchAlgorithmException{
+        MessageDigest md = MessageDigest.getInstance("MD5");
+        return new String(Hex.encodeHex(md.digest(plaintext.getBytes())));       
+    }
+    
+}