1 /* 2 * Copyright (c) 2003, 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 4856966 27 * @summary 28 * @author Andreas Sterbenz 29 * @library .. 30 * @key randomness 31 */ 32 33 import java.util.*; 34 35 import java.security.*; 36 37 public class ReinitDigest extends PKCS11Test { 38 39 public static void main(String[] args) throws Exception { 40 main(new ReinitDigest()); 41 } 42 43 public void main(Provider p) throws Exception { 44 if (p.getService("MessageDigest", "MD5") == null) { 45 System.out.println("Provider does not support MD5, skipping"); 46 return; 47 } 48 Random r = new Random(); 49 byte[] data1 = new byte[10 * 1024]; 50 byte[] data2 = new byte[10 * 1024]; 51 r.nextBytes(data1); 52 r.nextBytes(data2); 53 MessageDigest md; 54 md = MessageDigest.getInstance("MD5", "SUN"); 55 byte[] d1 = md.digest(data1); 56 md = MessageDigest.getInstance("MD5", p); 57 byte[] d2 = md.digest(data1); 58 check(d1, d2); 59 byte[] d3 = md.digest(data1); 60 check(d1, d3); 61 md.update(data2); 62 md.update((byte)0); 63 md.reset(); 64 byte[] d4 = md.digest(data1); 65 check(d1, d4); 66 System.out.println("All tests passed"); 67 } 68 69 private static void check(byte[] d1, byte[] d2) throws Exception { 70 if (Arrays.equals(d1, d2) == false) { 71 throw new RuntimeException("Digest mismatch"); 72 } 73 } 74 }