1 /* 2 * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 import java.io.PrintStream; 25 import java.lang.String; 26 import java.lang.System; 27 import java.security.Provider; 28 import java.security.SecureRandom; 29 import java.security.Security; 30 import javax.crypto.KeyGenerator; 31 import static java.lang.System.out; 32 33 /* 34 * @test 35 * @bug 8048607 36 * @compile ../../../com/sun/crypto/provider/Cipher/DES/TestUtility.java 37 * @summary Test key generation of DES and DESEDE 38 */ 39 public class TestKGParity { 40 41 private static final String[] ALGORITHM_ARR = { 42 "deS", "DesEDE" 43 }; 44 45 public static void main(String argv[]) throws Exception { 46 47 TestKGParity test = new TestKGParity(); 48 test.run(); 49 } 50 51 private void run() throws Exception { 52 Provider[] providers = Security.getProviders(); 53 for (Provider p : providers) { 54 String prvName = p.getName(); 55 if (prvName.startsWith("SunJCE") 56 || prvName.startsWith("SunPKCS11-")) { 57 for (String algorithm : ALGORITHM_ARR) { 58 if (!runTest(p, algorithm)) { 59 throw new RuntimeException( 60 "Test failed with provider/algorithm:" 61 + p.getName() + "/" + algorithm); 62 } else { 63 out.println("Test passed with provider/algorithm:" 64 + p.getName() + "/" + algorithm); 65 } 66 } 67 } 68 } 69 } 70 71 public boolean runTest(Provider p, String algo) throws Exception { 72 byte[] keyValue = null; 73 try { 74 // Initialization 75 SecureRandom sRdm = new SecureRandom(); 76 KeyGenerator kg = KeyGenerator.getInstance(algo, p); 77 kg.init(sRdm); 78 79 // Generate a SecretKey and retrieve its value 80 keyValue = kg.generateKey().getEncoded(); 81 82 // Verify its parity in the unit of byte 83 for (int i = 0; i < keyValue.length; i++) { 84 if (!checkParity(keyValue[i])) { 85 out.println("Testing: " 86 + p.getName() 87 + "/" 88 + algo 89 + " failed when verify its parity in the unit of byte:" 90 + TestUtility.hexDump(keyValue, i)); 91 return false; 92 } 93 } 94 return true; 95 } catch (Exception ex) { 96 out.println("Testing: " + p.getName() + "/" + algo 97 + " failed with unexpected exception"); 98 ex.printStackTrace(); 99 throw ex; 100 } 101 } 102 103 private boolean checkParity(byte keyByte) { 104 boolean even = false; 105 byte[] PARITY_BIT_MASK = { 106 (byte) 0x40, (byte) 0x20, (byte) 0x10, (byte) 0x08, 107 (byte) 0x04, (byte) 0x02, (byte) 0x01 108 }; 109 110 for (int i = 0; i < 7; i++) { 111 if ((keyByte & PARITY_BIT_MASK[i]) > 0) { 112 even = !even; 113 } 114 } 115 if (keyByte < 0) { 116 even = !even; 117 } 118 119 return even; 120 } 121 }