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
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
|
/*
* Copyright (c) 2003, 2024, 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 4853305 4865198 4888410 4963723 8146293
* @summary Verify that the RSA KeyPairGenerator works
* @library /test/lib
* @build jdk.test.lib.SigTestUtil
* @run main TestKeyPairGenerator
* @author Andreas Sterbenz
* @key randomness
*/
import java.io.*;
import java.util.*;
import java.math.BigInteger;
import java.security.*;
import java.security.interfaces.*;
import java.security.spec.*;
import jdk.test.lib.security.SecurityUtils;
import jdk.test.lib.SigTestUtil;
import static jdk.test.lib.SigTestUtil.SignatureType;
public class TestKeyPairGenerator {
private static Provider provider;
private static byte[] data;
private static void testSignature(SignatureType type, String mdAlg,
PrivateKey privateKey, PublicKey publicKey) throws
NoSuchAlgorithmException, InvalidKeyException, SignatureException {
System.out.println("Testing against " + mdAlg + "...");
String sigAlg = SigTestUtil.generateSigAlg(type, mdAlg);
Signature s = Signature.getInstance(sigAlg, provider);
s.initSign(privateKey);
s.update(data);
byte[] sig = s.sign();
s.initVerify(publicKey);
s.update(data);
boolean result = s.verify(sig);
if (result == false) {
throw new RuntimeException("Verification failed");
}
}
private static void test(PrivateKey privateKey, PublicKey publicKey) throws Exception {
int testSize = ((RSAPublicKey)publicKey).getModulus().bitLength();
System.out.println("modulus size = " + testSize);
Iterable<String> md_alg_pkcs15 =
SigTestUtil.getDigestAlgorithms(SignatureType.RSA, testSize);
md_alg_pkcs15.forEach(mdAlg -> {
try {
testSignature(SignatureType.RSA, mdAlg, privateKey, publicKey);
} catch (NoSuchAlgorithmException | InvalidKeyException |
SignatureException ex) {
throw new RuntimeException(ex);
}
}
);
}
// regression test for 4865198
private static void testInvalidSignature(KeyPair kp1, KeyPair kp2, String signAlgo)
throws Exception {
System.out.println("Testing signature with incorrect key...");
Signature sig = Signature.getInstance(signAlgo, provider);
sig.initSign(kp1.getPrivate());
byte[] data = new byte[100];
sig.update(data);
byte[] signature = sig.sign();
sig.initVerify(kp1.getPublic());
sig.update(data);
if (sig.verify(signature) == false) {
throw new Exception("verification failed");
}
sig.initVerify(kp2.getPublic());
sig.update(data);
// verify needs to return false and not throw an Exception
try {
if (sig.verify(signature)) {
throw new Exception("verification unexpectedly succeeded");
}
} catch (SignatureException se) {
// Yet another kind of failure, OK.
}
}
public static void main(String[] args) throws Exception {
long start = System.currentTimeMillis();
provider = Security.getProvider(
System.getProperty("test.provider.name", "SunRsaSign"));
data = new byte[2048];
String kpgAlgorithm = "RSA";
int keySize = SecurityUtils.getTestKeySize(kpgAlgorithm);
int[] keyLengths = {keySize, keySize, keySize + 1024};
BigInteger[] pubExps = {null, BigInteger.valueOf(3), null};
KeyPair[] keyPairs = new KeyPair[3];
new Random().nextBytes(data);
KeyPairGenerator kpg = KeyPairGenerator.getInstance(kpgAlgorithm, provider);
for (int i = 0; i < keyLengths.length; i++) {
int len = keyLengths[i];
BigInteger exp = pubExps[i];
System.out.println("Generating " + len + " bit keypair...");
if (exp == null) {
kpg.initialize(len);
} else {
kpg.initialize(new RSAKeyGenParameterSpec(len, exp));
}
KeyPair kp = kpg.generateKeyPair();
keyPairs[i] = kp;
RSAPublicKey publicKey = (RSAPublicKey)kp.getPublic();
System.out.println(publicKey);
RSAPrivateCrtKey privateKey = (RSAPrivateCrtKey)kp.getPrivate();
if (publicKey.getModulus().equals(privateKey.getModulus()) == false) {
throw new Exception("Moduli do not match");
}
if (publicKey.getPublicExponent().equals(privateKey.getPublicExponent()) == false) {
throw new Exception("Exponents do not match");
}
int keyLen = publicKey.getModulus().bitLength();
if ((keyLen > len) || (keyLen < len - 1)) {
throw new Exception("Incorrect key length: " + keyLen);
}
if (exp != null) {
if (exp.equals(publicKey.getPublicExponent()) == false) {
throw new Exception("Incorrect exponent");
}
}
test(privateKey, publicKey);
}
String md5Algo = "MD5withRSA";
String sha256Algo = "Sha256withRSA";
testInvalidSignature(keyPairs[0], keyPairs[1], md5Algo);
testInvalidSignature(keyPairs[0], keyPairs[2], md5Algo);
testInvalidSignature(keyPairs[2], keyPairs[0], md5Algo);
testInvalidSignature(keyPairs[0], keyPairs[1], sha256Algo);
testInvalidSignature(keyPairs[0], keyPairs[2], sha256Algo);
testInvalidSignature(keyPairs[2], keyPairs[0], sha256Algo);
long stop = System.currentTimeMillis();
System.out.println("All tests passed (" + (stop - start) + " ms).");
}
}
|
