| /* |
| * Copyright (c) 2015, 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 java.io.PrintStream; |
| import java.lang.String; |
| import java.lang.System; |
| import java.security.Provider; |
| import java.security.SecureRandom; |
| import java.security.Security; |
| import javax.crypto.KeyGenerator; |
| import static java.lang.System.out; |
| |
| /* |
| * @test |
| * @bug 8048607 |
| * @compile ../../../com/sun/crypto/provider/Cipher/DES/TestUtility.java |
| * @run main TestKGParity |
| * @summary Test key generation of DES and DESEDE |
| * @key randomness |
| */ |
| public class TestKGParity { |
| |
| private static final String[] ALGORITHM_ARR = { |
| "deS", "DesEDE" |
| }; |
| |
| public static void main(String argv[]) throws Exception { |
| |
| TestKGParity test = new TestKGParity(); |
| test.run(); |
| } |
| |
| private void run() throws Exception { |
| Provider[] providers = Security.getProviders(); |
| for (Provider p : providers) { |
| String prvName = p.getName(); |
| if (prvName.startsWith("SunJCE") |
| || prvName.startsWith("SunPKCS11-")) { |
| for (String algorithm : ALGORITHM_ARR) { |
| if (!runTest(p, algorithm)) { |
| throw new RuntimeException( |
| "Test failed with provider/algorithm:" |
| + p.getName() + "/" + algorithm); |
| } else { |
| out.println("Test passed with provider/algorithm:" |
| + p.getName() + "/" + algorithm); |
| } |
| } |
| } |
| } |
| } |
| |
| public boolean runTest(Provider p, String algo) throws Exception { |
| byte[] keyValue = null; |
| try { |
| // Initialization |
| SecureRandom sRdm = new SecureRandom(); |
| KeyGenerator kg = KeyGenerator.getInstance(algo, p); |
| kg.init(sRdm); |
| |
| // Generate a SecretKey and retrieve its value |
| keyValue = kg.generateKey().getEncoded(); |
| |
| // Verify its parity in the unit of byte |
| for (int i = 0; i < keyValue.length; i++) { |
| if (!checkParity(keyValue[i])) { |
| out.println("Testing: " |
| + p.getName() |
| + "/" |
| + algo |
| + " failed when verify its parity in the unit of byte:" |
| + TestUtility.hexDump(keyValue, i)); |
| return false; |
| } |
| } |
| return true; |
| } catch (Exception ex) { |
| out.println("Testing: " + p.getName() + "/" + algo |
| + " failed with unexpected exception"); |
| ex.printStackTrace(); |
| throw ex; |
| } |
| } |
| |
| private boolean checkParity(byte keyByte) { |
| boolean even = false; |
| byte[] PARITY_BIT_MASK = { |
| (byte) 0x40, (byte) 0x20, (byte) 0x10, (byte) 0x08, |
| (byte) 0x04, (byte) 0x02, (byte) 0x01 |
| }; |
| |
| for (int i = 0; i < 7; i++) { |
| if ((keyByte & PARITY_BIT_MASK[i]) > 0) { |
| even = !even; |
| } |
| } |
| if (keyByte < 0) { |
| even = !even; |
| } |
| |
| return even; |
| } |
| } |