1 /* 2 * Copyright (c) 1998, 2012, 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 /* 25 * @test 26 * @bug 7087021 27 * @summary MacClone 28 * @author Jan Luehe 29 */ 30 import javax.crypto.*; 31 32 public class MacClone { 33 34 public static void main(String[] args) throws Exception { 35 36 // 37 // Clone uninitialized Mac object 38 // 39 Mac mac = Mac.getInstance("HmacSHA1", "SunJCE"); 40 Mac macClone = (Mac)mac.clone(); 41 System.out.println(macClone.getProvider().toString()); 42 System.out.println(macClone.getAlgorithm()); 43 boolean thrown = false; 44 try { 45 macClone.update((byte)0x12); 46 } catch (IllegalStateException ise) { 47 thrown = true; 48 } 49 if (!thrown) { 50 throw new Exception("Expected IllegalStateException not thrown"); 51 } 52 53 // 54 // Clone initialized Mac object 55 // 56 KeyGenerator kgen = KeyGenerator.getInstance("DES"); 57 SecretKey skey = kgen.generateKey(); 58 59 mac = Mac.getInstance("HmacSHA1", "SunJCE"); 60 mac.init(skey); 61 macClone = (Mac)mac.clone(); 62 System.out.println(macClone.getProvider().toString()); 63 System.out.println(macClone.getAlgorithm()); 64 mac.update((byte)0x12); 65 macClone.update((byte)0x12); 66 byte[] macFinal = mac.doFinal(); 67 byte[] macCloneFinal = macClone.doFinal(); 68 if (!java.util.Arrays.equals(macFinal, macCloneFinal)) { 69 throw new Exception("MAC results are different"); 70 } 71 } 72 }