1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
|
/*
* Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/**
* @test
* @bug 8072452
* @summary Support DHE sizes up to 8192-bits and DSA sizes up to 3072-bits
*/
import java.math.BigInteger;
import java.security.*;
import javax.crypto.*;
import javax.crypto.interfaces.*;
import javax.crypto.spec.*;
public class UnsupportedDHKeys {
/*
* Sizes and values for various lengths.
*/
private enum UnsupportedKeySize {
// not multiple of 64
dhp513(513), dhp769(769), dhp895(895),
dhp1023(1023), dhp1535(1535), dhp2047(2047),
// unsupported
dhp2176(2176), dhp3008(3008), dhp4032(4032),
dhp5120(5120), dhp6400(6400), dhp7680(7680),
dhp8191(8191), dhp8128(8128), dhp8260(8260);
final int primeSize;
UnsupportedKeySize(int primeSize) {
this.primeSize = primeSize;
}
}
public static void main(String[] args) throws Exception {
for (UnsupportedKeySize keySize : UnsupportedKeySize.values()) {
try {
System.out.println("Checking " + keySize.primeSize + " ...");
KeyPairGenerator kpg =
KeyPairGenerator.getInstance("DH", "SunJCE");
kpg.initialize(keySize.primeSize);
throw new Exception("Should not support " + keySize.primeSize);
} catch (InvalidParameterException ipe) {
System.out.println("\tOk, unsupported");
}
}
}
}
|
