1 /*
   2  * Copyright (c) 2003, 2016, 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  * @modules jdk.crypto.token
  32  * @run main/othervm ReinitDigest
  33  * @run main/othervm ReinitDigest sm
  34  */
  35 
  36 import java.security.MessageDigest;
  37 import java.security.Provider;
  38 import java.util.Arrays;
  39 import java.util.Random;
  40 
  41 public class ReinitDigest extends PKCS11Test {
  42 
  43     public static void main(String[] args) throws Exception {
  44         main(new ReinitDigest(), args);
  45     }
  46 
  47     @Override
  48     public void main(Provider p) throws Exception {
  49         if (p.getService("MessageDigest", "MD5") == null) {
  50             System.out.println("Provider does not support MD5, skipping");
  51             return;
  52         }
  53         Random r = new Random();
  54         byte[] data1 = new byte[10 * 1024];
  55         byte[] data2 = new byte[10 * 1024];
  56         r.nextBytes(data1);
  57         r.nextBytes(data2);
  58         MessageDigest md;
  59         md = MessageDigest.getInstance("MD5", "SUN");
  60         byte[] d1 = md.digest(data1);
  61         md = MessageDigest.getInstance("MD5", p);
  62         byte[] d2 = md.digest(data1);
  63         check(d1, d2);
  64         byte[] d3 = md.digest(data1);
  65         check(d1, d3);
  66         md.update(data2);
  67         md.update((byte)0);
  68         md.reset();
  69         byte[] d4 = md.digest(data1);
  70         check(d1, d4);
  71         System.out.println("All tests passed");
  72     }
  73 
  74     private static void check(byte[] d1, byte[] d2) throws Exception {
  75         if (Arrays.equals(d1, d2) == false) {
  76             throw new RuntimeException("Digest mismatch");
  77         }
  78     }
  79 }