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1 /* |
1 /* |
2 * Copyright (c) 2003, Oracle and/or its affiliates. All rights reserved. |
2 * Copyright (c) 2003, 2015, Oracle and/or its affiliates. All rights reserved. |
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * |
4 * |
5 * This code is free software; you can redistribute it and/or modify it |
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 |
6 * under the terms of the GNU General Public License version 2 only, as |
7 * published by the Free Software Foundation. |
7 * published by the Free Software Foundation. |
21 * questions. |
21 * questions. |
22 */ |
22 */ |
23 |
23 |
24 /* |
24 /* |
25 * @test |
25 * @test |
26 * @bug 4891312 |
26 * @library .. |
27 * @summary verify that modPow() not broken by the special case for 65537 |
27 * @bug 4891312 8074460 |
|
28 * @summary verify that modPow() not broken by the special case for 65537 (use -Dseed=X to set PRNG seed) |
28 * @author Andreas Sterbenz |
29 * @author Andreas Sterbenz |
29 */ |
30 */ |
30 |
31 |
31 import java.math.BigInteger; |
32 import java.math.BigInteger; |
32 import java.util.*; |
|
33 |
33 |
34 import java.security.*; |
34 import java.security.*; |
35 import java.security.spec.*; |
35 import java.security.spec.*; |
36 |
36 |
37 public class ModPow65537 { |
37 public class ModPow65537 { |
76 } |
76 } |
77 |
77 |
78 private static void testSigning(KeyPair kp) throws Exception { |
78 private static void testSigning(KeyPair kp) throws Exception { |
79 System.out.println(kp.getPublic()); |
79 System.out.println(kp.getPublic()); |
80 byte[] data = new byte[1024]; |
80 byte[] data = new byte[1024]; |
81 new Random().nextBytes(data); |
81 RandomSeed rndSeed = new RandomSeed(false); |
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82 System.out.println("Random number generator seed = " + rndSeed.getSeed()); |
|
83 rndSeed.getRandom().nextBytes(data); |
82 |
84 |
83 Signature sig = Signature.getInstance("SHA1withRSA", "SunRsaSign"); |
85 Signature sig = Signature.getInstance("SHA1withRSA", "SunRsaSign"); |
84 sig.initSign(kp.getPrivate()); |
86 sig.initSign(kp.getPrivate()); |
85 sig.update(data); |
87 sig.update(data); |
86 byte[] sigBytes = sig.sign(); |
88 byte[] sigBytes = sig.sign(); |