1 /* 2 * Copyright (c) 1998, 2014, 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.security.InvalidKeyException; 25 import java.security.NoSuchAlgorithmException; 26 import java.security.NoSuchProviderException; 27 import java.security.Provider; 28 import java.security.SecureRandom; 29 import java.util.List; 30 import javax.crypto.Mac; 31 import javax.crypto.spec.SecretKeySpec; 32 33 /** 34 * @test 35 * @bug 8048603 36 * @summary Check if doFinal and update operation result in same Mac 37 * @author Yu-Ching Valerie Peng, Bill Situ, Alexander Fomin 38 * @library .. 39 * @run main MacSameTest 40 */ 41 public class MacSameTest extends PKCS11Test { 42 43 private static final int MESSAGE_SIZE = 25; 44 private static final int OFFSET = 5; 45 private static final int KEY_SIZE = 70; 46 47 /** 48 * Initialize a message, instantiate a Mac object, 49 * initialize the object with a SecretKey, 50 * feed the message into the Mac object 51 * all at once and get the output MAC as result1. 52 * Reset the Mac object, chop the message into three pieces, 53 * feed into the Mac object sequentially, and get the output MAC as result2. 54 * Finally, compare result1 and result2 and see if they are the same. 55 * 56 * @param args the command line arguments 57 */ 58 public static void main(String[] args) throws Exception { 59 main(new MacSameTest()); 60 } 61 62 @Override 63 public void main(Provider p) { 64 List<String> algorithms = getSupportedAlgorithms("Mac", "Hmac", p); 65 boolean success = true; 66 for (String alg : algorithms) { 67 try { 68 doTest(alg, p); 69 } catch (Exception e) { 70 System.out.println("Unexpected exception: " + e); 71 e.printStackTrace(); 72 success = false; 73 } 74 } 75 76 if (!success) { 77 throw new RuntimeException("Test failed"); 78 } 79 } 80 81 private void doTest(String algo, Provider provider) 82 throws NoSuchAlgorithmException, NoSuchProviderException, 83 InvalidKeyException { 84 System.out.println("Test " + algo); 85 Mac mac; 86 try { 87 mac = Mac.getInstance(algo, provider); 88 } catch (NoSuchAlgorithmException nsae) { 89 if ("SunPKCS11-Solaris".equals(provider.getName())) { 90 // depending on Solaris configuration, 91 // it can support HMAC or not with Mac 92 System.out.println("Expected NoSuchAlgorithmException thrown: " 93 + nsae); 94 return; 95 } 96 throw nsae; 97 } 98 99 byte[] plain = new byte[MESSAGE_SIZE]; 100 for (int i = 0; i < MESSAGE_SIZE; i++) { 101 plain[i] = (byte) (i % 256); 102 } 103 104 byte[] tail = new byte[plain.length - OFFSET]; 105 System.arraycopy(plain, OFFSET, tail, 0, tail.length); 106 107 SecureRandom srdm = new SecureRandom(); 108 byte[] keyVal = new byte[KEY_SIZE]; 109 srdm.nextBytes(keyVal); 110 SecretKeySpec keySpec = new SecretKeySpec(keyVal, "HMAC"); 111 112 mac.init(keySpec); 113 byte[] result1 = mac.doFinal(plain); 114 115 mac.reset(); 116 mac.update(plain[0]); 117 mac.update(plain, 1, OFFSET - 1); 118 byte[] result2 = mac.doFinal(tail); 119 120 if (!java.util.Arrays.equals(result1, result2)) { 121 throw new RuntimeException("result1 and result2 are not the same"); 122 } 123 } 124 125 }