1/*
2 * Copyright (c) 2012, 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 4442566 7176326
27 * @summary check that we can build and validate a zero-length
28 *    certpath when a trust anchor cert satisfies the target constraints
29 */
30import java.io.ByteArrayInputStream;
31import java.security.cert.*;
32import java.util.Collections;
33
34public class ZeroLengthPath {
35
36    private static final String ANCHOR =
37        "-----BEGIN CERTIFICATE-----\n" +
38        "MIIBFzCBwgIBATANBgkqhkiG9w0BAQQFADAXMRUwEwYDVQQDEwxUcnVzdCBBbmNo\n" +
39        "b3IwHhcNMDIxMTA3MTE1NzAzWhcNMjIxMTA3MTE1NzAzWjAXMRUwEwYDVQQDEwxU\n" +
40        "cnVzdCBBbmNob3IwXDANBgkqhkiG9w0BAQEFAANLADBIAkEA9uCj12hwDgC1n9go\n" +
41        "0ozQAVMM+DfX0vpKOemyGNp+ycSLfAq3pxBcUKbQhjSRL7YjPkEL8XC6pRLwyEoF\n" +
42        "osWweQIDAQABMA0GCSqGSIb3DQEBBAUAA0EAzZta5M1qbbozj7jWnNyTgB4HUpzv\n" +
43        "4eP0VYQb1pQY1/xEMczaRt+RuoIDnHCq5a1vOiwk6ZbdG6GlJKx9lj0oMQ==\n" +
44        "-----END CERTIFICATE-----";
45
46
47    public static void main(String[] args) throws Exception {
48
49        ByteArrayInputStream is = new ByteArrayInputStream(ANCHOR.getBytes());
50        CertificateFactory cf = CertificateFactory.getInstance("X.509");
51        X509Certificate cert = (X509Certificate)cf.generateCertificate(is);
52
53        X509CertSelector xcs = new X509CertSelector();
54        xcs.setSubject(cert.getSubjectX500Principal().getName());
55        PKIXBuilderParameters p = new PKIXBuilderParameters
56            (Collections.singleton(new TrustAnchor(cert, null)), xcs);
57        CertPathBuilder cpb = CertPathBuilder.getInstance("PKIX");
58        CertPath cp = buildCertPath(cpb, p);
59        validateCertPath(cp, p);
60    }
61
62    private static CertPath buildCertPath(CertPathBuilder cpb,
63                                          PKIXBuilderParameters params)
64        throws Exception
65    {
66        CertPathBuilderResult res = cpb.build(params);
67        if (res.getCertPath().getCertificates().size() != 0) {
68            throw new Exception("built path is not zero-length");
69        }
70        return res.getCertPath();
71    }
72
73    private static void validateCertPath(CertPath cp, PKIXParameters params)
74        throws Exception
75    {
76        CertPathValidator cpv = CertPathValidator.getInstance("PKIX");
77        CertPathValidatorResult cpvr = cpv.validate(cp, params);
78    }
79}
80