1 /*
   2  * Copyright (c) 2013, 2017, 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 7196382 8072452
  27  * @summary Ensure that DH key pairs can be generated for 512 - 8192 bits
  28  * @author Valerie Peng
  29  * @library ..
  30  * @modules jdk.crypto.cryptoki
  31  * @run main/othervm TestDH2048
  32  * @run main/othervm TestDH2048 sm
  33  */
  34 
  35 import java.security.InvalidParameterException;
  36 import java.security.KeyPair;
  37 import java.security.KeyPairGenerator;
  38 import java.security.Provider;
  39 
  40 public class TestDH2048 extends PKCS11Test {
  41 
  42     private static void checkUnsupportedKeySize(KeyPairGenerator kpg, int ks)
  43         throws Exception {
  44         try {
  45             kpg.initialize(ks);
  46             throw new Exception("Expected IPE not thrown for " + ks);
  47         } catch (InvalidParameterException ipe) {
  48         }
  49     }
  50 
  51     @Override
  52     public void main(Provider p) throws Exception {
  53         if (p.getService("KeyPairGenerator", "DH") == null) {
  54             System.out.println("KPG for DH not supported, skipping");
  55             return;
  56         }
  57         KeyPairGenerator kpg = KeyPairGenerator.getInstance("DH", p);
  58         kpg.initialize(512);
  59         KeyPair kp1 = kpg.generateKeyPair();
  60 
  61         kpg.initialize(768);
  62         kp1 = kpg.generateKeyPair();
  63 
  64         kpg.initialize(1024);
  65         kp1 = kpg.generateKeyPair();
  66 
  67         kpg.initialize(1536);
  68         kp1 = kpg.generateKeyPair();
  69 
  70         kpg.initialize(2048);
  71         kp1 = kpg.generateKeyPair();
  72 
  73         try {
  74             kpg.initialize(3072);
  75             kp1 = kpg.generateKeyPair();
  76 
  77             kpg.initialize(4096);
  78             kp1 = kpg.generateKeyPair();
  79 
  80             kpg.initialize(6144);
  81             kp1 = kpg.generateKeyPair();
  82 
  83             kpg.initialize(8192);
  84             kp1 = kpg.generateKeyPair();
  85         } catch (InvalidParameterException ipe) {
  86             // NSS (as of version 3.13) has a hard coded maximum limit
  87             // of 2236 or 3072 bits for DHE keys.
  88             System.out.println("4096-bit DH key pair generation: " + ipe);
  89             if (!p.getName().equals("SunPKCS11-NSS")) {
  90                 throw ipe;
  91             }
  92         }
  93 
  94         // key size must be multiples of 64 though
  95         checkUnsupportedKeySize(kpg, 2048 + 63);
  96         checkUnsupportedKeySize(kpg, 3072 + 32);
  97     }
  98 
  99     public static void main(String[] args) throws Exception {
 100         main(new TestDH2048(), args);
 101     }
 102 }