--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/src/share/classes/sun/security/krb5/internal/crypto/RsaMd5CksumType.java	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,104 @@
+/*
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Sun designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Sun in the LICENSE file that accompanied this code.
+ *
+ * This code 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
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+
+/*
+ *  (C) Copyright IBM Corp. 1999 All Rights Reserved.
+ *  Copyright 1997 The Open Group Research Institute.  All rights reserved.
+ */
+
+package sun.security.krb5.internal.crypto;
+
+import sun.security.krb5.Checksum;
+import sun.security.krb5.KrbCryptoException;
+import sun.security.krb5.internal.*;
+import java.security.MessageDigest;
+import java.security.Provider;
+import java.security.Security;
+
+public final class RsaMd5CksumType extends CksumType {
+
+    public RsaMd5CksumType() {
+    }
+
+    public int confounderSize() {
+        return 0;
+    }
+
+    public int cksumType() {
+        return Checksum.CKSUMTYPE_RSA_MD5;
+    }
+
+    public boolean isSafe() {
+        return false;
+    }
+
+    public int cksumSize() {
+        return 16;
+    }
+
+    public int keyType() {
+        return Krb5.KEYTYPE_NULL;
+    }
+
+    public int keySize() {
+        return 0;
+    }
+
+    /**
+     * Calculates checksum using MD5.
+     * @param data the data used to generate the checksum.
+     * @param size length of the data.
+     * @return the checksum.
+     *
+     * @modified by Yanni Zhang, 12/08/99.
+     */
+
+    public byte[] calculateChecksum(byte[] data, int size) throws KrbCryptoException{
+        MessageDigest md5;
+        byte[] result = null;
+        try {
+            md5 = MessageDigest.getInstance("MD5");
+        } catch (Exception e) {
+            throw new KrbCryptoException("JCE provider may not be installed. " + e.getMessage());
+        }
+        try {
+            md5.update(data);
+            result = md5.digest();
+        } catch (Exception e) {
+            throw new KrbCryptoException(e.getMessage());
+        }
+        return result;
+    }
+
+    public byte[] calculateKeyedChecksum(byte[] data, int size,
+        byte[] key, int usage) throws KrbCryptoException {
+                                             return null;
+                                         }
+
+    public boolean verifyKeyedChecksum(byte[] data, int size,
+        byte[] key, byte[] checksum, int usage) throws KrbCryptoException {
+        return false;
+    }
+
+}