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
35import java.security.InvalidParameterException;
36import java.security.KeyPair;
37import java.security.KeyPairGenerator;
38import java.security.Provider;
39
40public 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}
103