1 /*
   2  * Copyright (c) 2001, 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 4458951
  27  * @summary Check that Sun's PKIX implementation of
  28  *      CertPathValidator.validate() and CertPathBuilder.build() throw an
  29  *      InvalidAlgorithmParameterException if any of the TrustAnchors specified
  30  *      contain nameConstraints
  31  * @modules java.base/sun.security.util
  32  */
  33 import java.io.File;
  34 import java.io.FileInputStream;
  35 import java.io.IOException;
  36 
  37 import java.security.InvalidAlgorithmParameterException;
  38 import java.security.cert.CertificateFactory;
  39 import java.security.cert.CertPath;
  40 import java.security.cert.CertPathBuilder;
  41 import java.security.cert.CertPathBuilderResult;
  42 import java.security.cert.CertPathValidator;
  43 import java.security.cert.CertPathValidatorResult;
  44 import java.security.cert.PKIXParameters;
  45 import java.security.cert.PKIXBuilderParameters;
  46 import java.security.cert.TrustAnchor;
  47 import java.security.cert.X509Certificate;
  48 import java.security.cert.X509CertSelector;
  49 
  50 import java.util.ArrayList;
  51 import java.util.Collections;
  52 import java.util.List;
  53 import java.util.Set;
  54 
  55 import sun.security.util.DerInputStream;
  56 
  57 /**
  58  * ValidateNC performs a validation and build of a certification path, using any
  59  * name constraints provided in the trust anchor's certificate. Using
  60  * Sun's provider, the validation and build should fail because name constraints
  61  * on trust anchors are not supported.
  62  *
  63  * @author      Steve Hanna
  64  * @author      Sean Mullan
  65  */
  66 public final class ValidateNC {
  67 
  68     private static CertPath path;
  69     private static PKIXParameters params;
  70     private static Set anchors;
  71 
  72     public static void main(String[] args) throws Exception {
  73 
  74         String[] certs = { "sun2labs2.cer", "labs2isrg2.cer" };
  75 
  76         createPath(certs);
  77         try {
  78             validate(path, params);
  79             throw new Exception("CertPathValidator should have thrown an " +
  80               "InvalidAlgorithmParameterException");
  81         } catch (InvalidAlgorithmParameterException iape) {
  82             // success!
  83         }
  84 
  85         try {
  86             X509CertSelector sel = new X509CertSelector();
  87             sel.setSubject("cn=sean");
  88             PKIXBuilderParameters bparams =
  89                 new PKIXBuilderParameters(anchors, sel);
  90             build(bparams);
  91             throw new Exception("CertPathBuilder should have thrown an " +
  92               "InvalidAlgorithmParameterException");
  93         } catch (InvalidAlgorithmParameterException iape) {
  94             // success!
  95         }
  96     }
  97 
  98     public static void createPath(String[] certs) throws Exception {
  99 
 100         X509Certificate anchorCert = getCertFromFile(certs[0]);
 101         byte [] nameConstraints = anchorCert.getExtensionValue("2.5.29.30");
 102         if (nameConstraints != null) {
 103             DerInputStream in = new DerInputStream(nameConstraints);
 104             nameConstraints = in.getOctetString();
 105         }
 106         TrustAnchor anchor = new TrustAnchor(anchorCert, nameConstraints);
 107         List list = new ArrayList();
 108         for (int i = 1; i < certs.length; i++) {
 109             list.add(0, getCertFromFile(certs[i]));
 110         }
 111         CertificateFactory cf = CertificateFactory.getInstance("X509");
 112         path = cf.generateCertPath(list);
 113 
 114         anchors = Collections.singleton(anchor);
 115         params = new PKIXParameters(anchors);
 116         params.setRevocationEnabled(false);
 117     }
 118 
 119     /**
 120      * Get a DER-encoded X.509 certificate from a file.
 121      *
 122      * @param certFilePath path to file containing DER-encoded certificate
 123      * @return X509Certificate
 124      * @throws IOException on error
 125      */
 126     public static X509Certificate getCertFromFile(String certFilePath)
 127         throws IOException {
 128             X509Certificate cert = null;
 129             try {
 130                 File certFile = new File(System.getProperty("test.src", "."),
 131                     certFilePath);
 132                 FileInputStream certFileInputStream =
 133                     new FileInputStream(certFile);
 134                 CertificateFactory cf = CertificateFactory.getInstance("X509");
 135                 cert = (X509Certificate)
 136                     cf.generateCertificate(certFileInputStream);
 137             } catch (Exception e) {
 138                 e.printStackTrace();
 139                 throw new IOException("Can't construct X509Certificate: " +
 140                                       e.getMessage());
 141             }
 142             return cert;
 143     }
 144 
 145     /**
 146      * Perform a PKIX validation.
 147      *
 148      * @param path CertPath to validate
 149      * @param params PKIXParameters to use in validation
 150      * @throws Exception on error
 151      */
 152     public static void validate(CertPath path, PKIXParameters params)
 153         throws Exception {
 154         CertPathValidator validator =
 155             CertPathValidator.getInstance("PKIX", "SUN");
 156         CertPathValidatorResult cpvr = validator.validate(path, params);
 157     }
 158 
 159     /**
 160      * Perform a PKIX build.
 161      *
 162      * @param params PKIXBuilderParameters to use in the build
 163      * @throws Exception on error
 164      */
 165     public static void build(PKIXBuilderParameters params)
 166         throws Exception {
 167         CertPathBuilder builder =
 168             CertPathBuilder.getInstance("PKIX", "SUN");
 169         CertPathBuilderResult cpbr = builder.build(params);
 170     }
 171 }