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 test that reinitializing Signatures works correctly
  28  * @author Andreas Sterbenz
  29  * @library ..
  30  * @key randomness
  31  */
  32 
  33 import java.util.*;
  34 
  35 import java.security.*;
  36 
  37 public class ReinitSignature extends PKCS11Test {
  38 
  39     public static void main(String[] args) throws Exception {
  40         main(new ReinitSignature());
  41     }
  42 
  43     public void main(Provider p) throws Exception {
  44         KeyPairGenerator kpg = KeyPairGenerator.getInstance("RSA", p);
  45         kpg.initialize(512);
  46         KeyPair kp = kpg.generateKeyPair();
  47         PrivateKey privateKey = kp.getPrivate();
  48         PublicKey publicKey = kp.getPublic();
  49         Signature sig = Signature.getInstance("MD5withRSA", p);
  50         byte[] data = new byte[10 * 1024];
  51         new Random().nextBytes(data);
  52         sig.initSign(privateKey);
  53         sig.initSign(privateKey);
  54         sig.update(data);
  55         sig.initSign(privateKey);
  56         sig.update(data);
  57         byte[] signature = sig.sign();
  58         sig.update(data);
  59         sig.initSign(privateKey);
  60         sig.update(data);
  61         sig.sign();
  62         sig.sign();
  63         sig.initSign(privateKey);
  64         sig.sign();
  65 
  66         System.out.println("All tests passed");
  67     }
  68 
  69 }
--- EOF ---