--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/test/javax/crypto/CryptoPermissions/CryptoPolicyFallback.java Mon Dec 05 17:04:02 2016 -0800
@@ -0,0 +1,119 @@
+/*
+ * 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.
+ */
+
+/**
+ * @test
+ * @bug 8169335
+ * @summary Add a crypto policy fallback in case Security Property
+ * 'crypto.policy' does not exist.
+ * @run main/othervm CryptoPolicyFallback
+ */
+import java.io.*;
+import java.nio.file.*;
+import java.util.stream.*;
+import javax.crypto.*;
+
+/*
+ * Take the current java.security file, strip out the 'crypto.policy' entry,
+ * write to a new file in the current directory, then use that file as the
+ * replacement java.security file. This test will fail if the crypto.policy
+ * entry doesn't match the compiled in value.
+ */
+public class CryptoPolicyFallback {
+
+ private static final String FILENAME = "java.security";
+
+ public static void main(String[] args) throws Exception {
+
+ String javaHome = System.getProperty("java.home");
+
+ Path path = Paths.get(javaHome, "conf", "security", FILENAME);
+
+ /*
+ * Get the default value.
+ */
+ String defaultPolicy;
+ try (Stream<String> lines = Files.lines(path)) {
+ /*
+ * If the input java.security file is malformed
+ * (missing crypto.policy, attribute/no value, etc), throw
+ * exception. split() might throw AIOOB which
+ * is ok behavior.
+ */
+ defaultPolicy = lines.filter(x -> x.startsWith("crypto.policy="))
+ .findFirst().orElseThrow(
+ () -> new Exception("Missing crypto.policy"))
+ .split("=")[1].trim();
+ }
+
+ /*
+ * We know there is at least one crypto.policy entry, strip
+ * all of them out of the java.security file.
+ */
+ try (PrintWriter out = new PrintWriter(FILENAME);
+ Stream<String> lines = Files.lines(path)) {
+ lines.filter(x -> !x.trim().startsWith("crypto.policy="))
+ .forEach(out::println);
+ }
+
+ /*
+ * "-Djava.security.properties==file" does a complete replacement
+ * of the system java.security file. i.e. value must be "=file"
+ */
+ System.setProperty("java.security.properties", "=" + FILENAME);
+
+ /*
+ * Find out expected value.
+ */
+ int expected;
+ switch (defaultPolicy) {
+ case "limited":
+ expected = 128;
+ break;
+ case "unlimited":
+ expected = Integer.MAX_VALUE;
+ break;
+ default:
+ throw new Exception(
+ "Unexpected Default Policy Value: " + defaultPolicy);
+ }
+
+ /*
+ * Do the actual check. If the JCE Framework can't initialize
+ * an Exception is normally thrown here.
+ */
+ int maxKeyLen = Cipher.getMaxAllowedKeyLength("AES");
+
+ System.out.println("Default Policy: " + defaultPolicy
+ + "\nExpected max AES key length: " + expected
+ + ", received : " + maxKeyLen);
+
+ if (expected != maxKeyLen) {
+ throw new Exception("Wrong Key Length size!");
+ }
+
+ System.out.println("PASSED!");
+ }
+}