undefect. CWE-407 — 63 sites patched across 27 ecosystems

Authors: russell@unturf.com · brackishbert@gmail.com · foxhop.net · TimeHexOn.com Patches, unit tests, benchmarks, whitepaper, and outreach briefs. Public domain — no copyright claimed. Use freely.
2026-03-26 17:11:57 -04:00 · 2026-03-26 17:11:57 -04:00 · 0a580b313d
commit 0a580b313d
70422 changed files with 17213626 additions and 0 deletions
--- a/test/jdk/java/security/SecureRandom/Serialize.java
+++ b/test/jdk/java/security/SecureRandom/Serialize.java
@ -0,0 +1,106 @@
+/*
+ * Copyright (c) 1998, 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.
+ */
+
+/* @test
+ * @bug 4102896
+ * @summary Make sure that a SecureRandom object can be serialized
+ * @run main/othervm Serialize
+ */
+
+import java.security.*;
+import java.io.*;
+
+public class Serialize {
+
+    public static void main(String args[]) throws Exception {
+        System.setProperty("java.security.egd", "file:/dev/urandom");
+
+        for (String alg: new String[]{
+                "SHA1PRNG", "DRBG", "Hash_DRBG", "HMAC_DRBG", "CTR_DRBG",
+                "Hash_DRBG,SHA-512,192,pr_and_reseed"}) {
+
+            System.out.println("Testing " + alg);
+            SecureRandom s1;
+
+            // A SecureRandom can be s11ned and des11ned at any time.
+
+            // Brand new.
+            s1 = getInstance(alg);
+            revive(s1).nextInt();
+            if (alg.contains("DRBG")) {
+                revive(s1).reseed();
+            }
+
+            // Used
+            s1 = getInstance(alg);
+            s1.nextInt();    // state set
+            revive(s1).nextInt();
+            if (alg.contains("DRBG")) {
+                revive(s1).reseed();
+            }
+
+            // Automatically reseeded
+            s1 = getInstance(alg);
+            if (alg.contains("DRBG")) {
+                s1.reseed();
+            }
+            revive(s1).nextInt();
+            if (alg.contains("DRBG")) {
+                revive(s1).reseed();
+            }
+
+            // Manually seeded
+            s1 = getInstance(alg);
+            s1.setSeed(1L);
+            revive(s1).nextInt();
+            if (alg.contains("DRBG")) {
+                revive(s1).reseed();
+            }
+        }
+    }
+
+    private static SecureRandom getInstance(String alg) throws Exception {
+        if (alg.equals("SHA1PRNG") || alg.equals("DRBG")) {
+            return SecureRandom.getInstance(alg);
+        } else {
+            String old = Security.getProperty("securerandom.drbg.config");
+            try {
+                Security.setProperty("securerandom.drbg.config", alg);
+                return SecureRandom.getInstance("DRBG");
+            } finally {
+                Security.setProperty("securerandom.drbg.config", old);
+            }
+        }
+    }
+
+    private static SecureRandom revive(SecureRandom oldOne) throws Exception {
+        ByteArrayOutputStream bout = new ByteArrayOutputStream();
+        new ObjectOutputStream(bout).writeObject(oldOne);
+        SecureRandom newOne = (SecureRandom) new ObjectInputStream(
+                new ByteArrayInputStream(bout.toByteArray())).readObject();
+        if (!oldOne.toString().equals(newOne.toString())) {
+            throw new Exception(newOne + " is not " + oldOne);
+        }
+        return newOne;
+    }
+}