jdk/test/sun/security/provider/SecureRandom/DRBGS11n.java
changeset 38853 971a7101da5b
child 42338 a60f280f803c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/test/sun/security/provider/SecureRandom/DRBGS11n.java	Tue Jun 07 10:10:59 2016 +0800
@@ -0,0 +1,70 @@
+/*
+ * 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.
+ *
+ * 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.
+ */
+import sun.security.provider.DRBG;
+import sun.security.provider.MoreDrbgParameters;
+
+import java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
+import java.io.ObjectInputStream;
+import java.io.ObjectOutputStream;
+import java.lang.reflect.Field;
+
+/**
+ * @test
+ * @bug 8157308
+ * @modules java.base/sun.security.provider
+ * @summary Make AbstractDrbg non-Serializable
+ * @run main DRBGS11n mech
+ * @run main DRBGS11n capability
+ */
+public class DRBGS11n {
+
+    public static void main(String[] args) throws Exception {
+
+        DRBG d = new DRBG(null);
+        Field f = DRBG.class.getDeclaredField("mdp");
+        f.setAccessible(true);
+        MoreDrbgParameters mdp = (MoreDrbgParameters)f.get(d);
+
+        // Corrupt the mech or capability fields inside DRBG#mdp.
+        f = MoreDrbgParameters.class.getDeclaredField(args[0]);
+        f.setAccessible(true);
+        f.set(mdp, null);
+
+        try {
+            revive(d);
+        } catch (IllegalArgumentException iae) {
+            // Expected
+            return;
+        }
+
+        throw new Exception("revive should fail");
+    }
+
+    static <T> T revive(T in) throws Exception {
+        ByteArrayOutputStream bout = new ByteArrayOutputStream();
+        new ObjectOutputStream(bout).writeObject(in);
+        return (T) new ObjectInputStream(
+                new ByteArrayInputStream(bout.toByteArray())).readObject();
+    }
+}