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 import javax.crypto.*;
  38 import javax.crypto.spec.*;
  39 
  40 public class ReinitMac extends PKCS11Test {
  41 
  42     public static void main(String[] args) throws Exception {
  43         main(new ReinitMac());
  44     }
  45 
  46     public void main(Provider p) throws Exception {
  47         if (p.getService("Mac", "HmacMD5") == null) {
  48             System.out.println(p + " does not support HmacMD5, skipping");
  49             return;
  50         }
  51         Random random = new Random();
  52         byte[] data1 = new byte[10 * 1024];
  53         random.nextBytes(data1);
  54         byte[] keyData = new byte[16];
  55         random.nextBytes(keyData);
  56         SecretKeySpec key = new SecretKeySpec(keyData, "Hmac");
  57         Mac mac = Mac.getInstance("HmacMD5", p);
  58         mac.init(key);
  59         mac.init(key);
  60         mac.update(data1);
  61         mac.init(key);
  62         mac.doFinal();
  63         mac.doFinal();
  64         mac.update(data1);
  65         mac.doFinal();
  66         mac.reset();
  67         mac.reset();
  68         mac.init(key);
  69         mac.reset();
  70         mac.update(data1);
  71         mac.reset();
  72 
  73         System.out.println("All tests passed");
  74     }
  75 }