1 /*
2  * Copyright (c) 2013, 2018, 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 /test/lib ..
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     }
main(String[] args)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 }
103