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 4898479
  27  * @summary Verify that the parity bits are set correctly
  28  * @author Andreas Sterbenz
  29  * @library ..
  30  * @key randomness
  31  * @modules jdk.crypto.token
  32  * @run main/othervm DESParity
  33  * @run main/othervm DESParity sm
  34  */
  35 
  36 import java.security.Provider;
  37 import java.util.Random;
  38 import javax.crypto.SecretKey;
  39 import javax.crypto.SecretKeyFactory;
  40 import javax.crypto.spec.DESKeySpec;
  41 import javax.crypto.spec.DESedeKeySpec;
  42 import javax.crypto.spec.SecretKeySpec;
  43 
  44 public class DESParity extends PKCS11Test {
  45 
  46     @Override
  47     public void main(Provider p) throws Exception {
  48         if (p.getService("SecretKeyFactory", "DES") == null) {
  49             System.out.println("Not supported by provider, skipping");
  50             return;
  51         }
  52         Random random = new Random();
  53         SecretKeyFactory kf;
  54         // DES
  55         kf = SecretKeyFactory.getInstance("DES", p);
  56         for (int i = 0; i < 10; i++ ) {
  57             byte[] b = new byte[8];
  58             random.nextBytes(b);
  59             SecretKeySpec spec = new SecretKeySpec(b, "DES");
  60             SecretKey key = kf.generateSecret(spec);
  61             if (DESKeySpec.isParityAdjusted(key.getEncoded(), 0) == false) {
  62                 throw new Exception("DES key not parity adjusted");
  63             }
  64         }
  65         // DESede
  66         kf = SecretKeyFactory.getInstance("DESede", p);
  67         for (int i = 0; i < 10; i++ ) {
  68             byte[] b = new byte[24];
  69             random.nextBytes(b);
  70             SecretKeySpec spec = new SecretKeySpec(b, "DESede");
  71             SecretKey key = kf.generateSecret(spec);
  72             if (DESedeKeySpec.isParityAdjusted(key.getEncoded(), 0) == false) {
  73                 throw new Exception("DESede key not parity adjusted");
  74             }
  75         }
  76     }
  77 
  78     public static void main(String[] args) throws Exception {
  79         main(new DESParity(), args);
  80     }
  81 
  82 }