| /* |
| * Copyright (c) 1998, 2017, 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. |
| */ |
| |
| /* |
| * @test |
| * @bug 8048603 |
| * @summary Check if doFinal and update operation result in same Mac |
| * @author Yu-Ching Valerie Peng, Bill Situ, Alexander Fomin |
| * @library .. |
| * @modules jdk.crypto.cryptoki |
| * @run main/othervm MacSameTest |
| * @run main/othervm MacSameTest sm |
| * @key randomness |
| */ |
| |
| import java.security.InvalidKeyException; |
| import java.security.NoSuchAlgorithmException; |
| import java.security.NoSuchProviderException; |
| import java.security.Provider; |
| import java.security.SecureRandom; |
| import java.util.List; |
| import javax.crypto.Mac; |
| import javax.crypto.spec.SecretKeySpec; |
| |
| public class MacSameTest extends PKCS11Test { |
| |
| private static final int MESSAGE_SIZE = 25; |
| private static final int OFFSET = 5; |
| private static final int KEY_SIZE = 70; |
| |
| /** |
| * Initialize a message, instantiate a Mac object, |
| * initialize the object with a SecretKey, |
| * feed the message into the Mac object |
| * all at once and get the output MAC as result1. |
| * Reset the Mac object, chop the message into three pieces, |
| * feed into the Mac object sequentially, and get the output MAC as result2. |
| * Finally, compare result1 and result2 and see if they are the same. |
| * |
| * @param args the command line arguments |
| */ |
| public static void main(String[] args) throws Exception { |
| main(new MacSameTest(), args); |
| } |
| |
| @Override |
| public void main(Provider p) { |
| List<String> algorithms = getSupportedAlgorithms("Mac", "Hmac", p); |
| boolean success = true; |
| for (String alg : algorithms) { |
| try { |
| doTest(alg, p); |
| } catch (Exception e) { |
| System.out.println("Unexpected exception: " + e); |
| e.printStackTrace(); |
| success = false; |
| } |
| } |
| |
| if (!success) { |
| throw new RuntimeException("Test failed"); |
| } |
| } |
| |
| private void doTest(String algo, Provider provider) |
| throws NoSuchAlgorithmException, NoSuchProviderException, |
| InvalidKeyException { |
| System.out.println("Test " + algo); |
| Mac mac; |
| try { |
| mac = Mac.getInstance(algo, provider); |
| } catch (NoSuchAlgorithmException nsae) { |
| if ("SunPKCS11-Solaris".equals(provider.getName())) { |
| // depending on Solaris configuration, |
| // it can support HMAC or not with Mac |
| System.out.println("Expected NoSuchAlgorithmException thrown: " |
| + nsae); |
| return; |
| } |
| throw nsae; |
| } |
| |
| byte[] plain = new byte[MESSAGE_SIZE]; |
| for (int i = 0; i < MESSAGE_SIZE; i++) { |
| plain[i] = (byte) (i % 256); |
| } |
| |
| byte[] tail = new byte[plain.length - OFFSET]; |
| System.arraycopy(plain, OFFSET, tail, 0, tail.length); |
| |
| SecureRandom srdm = new SecureRandom(); |
| byte[] keyVal = new byte[KEY_SIZE]; |
| srdm.nextBytes(keyVal); |
| SecretKeySpec keySpec = new SecretKeySpec(keyVal, "HMAC"); |
| |
| mac.init(keySpec); |
| byte[] result1 = mac.doFinal(plain); |
| |
| mac.reset(); |
| mac.update(plain[0]); |
| mac.update(plain, 1, OFFSET - 1); |
| byte[] result2 = mac.doFinal(tail); |
| |
| if (!java.util.Arrays.equals(result1, result2)) { |
| throw new RuntimeException("result1 and result2 are not the same"); |
| } |
| } |
| |
| } |