--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/src/java.base/share/classes/sun/security/provider/MoreDrbgParameters.java	Fri May 06 11:38:44 2016 +0800
@@ -0,0 +1,73 @@
+/*
+ * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved.
+ * 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.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+package sun.security.provider;
+
+import java.security.DrbgParameters;
+import java.security.SecureRandomParameters;
+
+/**
+ * Extra non-standard parameters that can be used by DRBGs.
+ */
+public class MoreDrbgParameters implements SecureRandomParameters {
+
+    final String mech;
+    final String algorithm;
+    final EntropySource es;
+    final byte[] nonce;
+    final boolean usedf;
+    final DrbgParameters.Instantiation config;
+
+    /**
+     * Creates a new {@code MoreDrbgParameters} object.
+     *
+     * @param es the {@link EntropySource} to use. If set to {@code null},
+     *           a default entropy source will be used.
+     * @param mech mech name. If set to {@code null}, the one in
+     *             securerandom.drbg.config is used. This argument is ignored
+     *             when passing to HashDrbg/HmacDrbg/CtrDrbg.
+     * @param algorithm the requested algorithm to use. If set to {@code null},
+     *                  the algorithm will be decided by strength.
+     * @param nonce the nonce to use. If set to {@code null},
+     *              a nonce will be assigned.
+     * @param usedf whether a derivation function should be used
+     * @param config a {@link DrbgParameters.Instantiation} object
+     */
+    public MoreDrbgParameters(EntropySource es, String mech,
+                              String algorithm, byte[] nonce, boolean usedf,
+                              DrbgParameters.Instantiation config) {
+        this.mech = mech;
+        this.algorithm = algorithm;
+        this.es = es;
+        this.nonce = nonce;
+        this.usedf = usedf;
+        this.config = config;
+    }
+
+    @Override
+    public String toString() {
+        return mech + "," + algorithm + "," + usedf + "," + config;
+    }
+}