126 lines
4.4 KiB
Java
126 lines
4.4 KiB
Java
/*
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* Copyright (c) 2015, 2024, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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import java.io.PrintStream;
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import java.lang.String;
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import java.lang.System;
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import java.security.Provider;
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import java.security.SecureRandom;
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import java.security.Security;
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import javax.crypto.KeyGenerator;
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import static java.lang.System.out;
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/*
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* @test
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* @bug 8048607
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* @compile ../../../com/sun/crypto/provider/Cipher/DES/TestUtility.java
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* @run main TestKGParity
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* @summary Test key generation of DES and DESEDE
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* @key randomness
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*/
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public class TestKGParity {
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private static final String[] ALGORITHM_ARR = {
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"deS", "DesEDE"
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};
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public static void main(String argv[]) throws Exception {
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TestKGParity test = new TestKGParity();
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test.run();
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}
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private void run() throws Exception {
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Provider[] providers = Security.getProviders();
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for (Provider p : providers) {
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String prvName = p.getName();
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if ((System.getProperty("test.provider.name") != null &&
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prvName.equals(System.getProperty("test.provider.name"))) ||
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(System.getProperty("test.provider.name") == null &&
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(prvName.startsWith("SunJCE") || prvName.startsWith("SunPKCS11-")))) {
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for (String algorithm : ALGORITHM_ARR) {
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if (!runTest(p, algorithm)) {
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throw new RuntimeException(
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"Test failed with provider/algorithm:"
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+ p.getName() + "/" + algorithm);
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} else {
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out.println("Test passed with provider/algorithm:"
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+ p.getName() + "/" + algorithm);
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}
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}
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}
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}
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}
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public boolean runTest(Provider p, String algo) throws Exception {
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byte[] keyValue = null;
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try {
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// Initialization
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SecureRandom sRdm = new SecureRandom();
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KeyGenerator kg = KeyGenerator.getInstance(algo, p);
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kg.init(sRdm);
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// Generate a SecretKey and retrieve its value
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keyValue = kg.generateKey().getEncoded();
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// Verify its parity in the unit of byte
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for (int i = 0; i < keyValue.length; i++) {
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if (!checkParity(keyValue[i])) {
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out.println("Testing: "
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+ p.getName()
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+ "/"
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+ algo
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+ " failed when verify its parity in the unit of byte:"
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+ TestUtility.hexDump(keyValue, i));
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return false;
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}
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}
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return true;
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} catch (Exception ex) {
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out.println("Testing: " + p.getName() + "/" + algo
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+ " failed with unexpected exception");
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ex.printStackTrace();
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throw ex;
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}
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}
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private boolean checkParity(byte keyByte) {
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boolean even = false;
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byte[] PARITY_BIT_MASK = {
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(byte) 0x40, (byte) 0x20, (byte) 0x10, (byte) 0x08,
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(byte) 0x04, (byte) 0x02, (byte) 0x01
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};
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for (int i = 0; i < 7; i++) {
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if ((keyByte & PARITY_BIT_MASK[i]) > 0) {
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even = !even;
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}
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}
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if (keyByte < 0) {
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even = !even;
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}
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return even;
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}
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}
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