| /* |
| * 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!"); |
| } |
| } |