| /* |
| * 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. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * 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. |
| */ |
| |
| package sun.security.util; |
| |
| import java.io.File; |
| import java.io.FileInputStream; |
| import java.security.AccessController; |
| import java.security.KeyStore; |
| import java.security.PrivilegedAction; |
| import java.security.cert.X509Certificate; |
| import java.util.Enumeration; |
| import java.util.HashSet; |
| |
| import sun.security.x509.X509CertImpl; |
| |
| /** |
| * The purpose of this class is to determine the trust anchor certificates is in |
| * the cacerts file. This is used for PKIX CertPath checking. |
| */ |
| public class AnchorCertificates { |
| |
| private static final Debug debug = Debug.getInstance("certpath"); |
| private static final String HASH = "SHA-256"; |
| private static HashSet<String> certs; |
| |
| static { |
| AccessController.doPrivileged(new PrivilegedAction<Void>() { |
| @Override |
| public Void run() { |
| File f = new File(System.getProperty("java.home"), |
| "lib/security/cacerts"); |
| KeyStore cacerts; |
| try { |
| cacerts = KeyStore.getInstance("JKS"); |
| try (FileInputStream fis = new FileInputStream(f)) { |
| cacerts.load(fis, null); |
| certs = new HashSet<>(); |
| Enumeration<String> list = cacerts.aliases(); |
| String alias; |
| while (list.hasMoreElements()) { |
| alias = list.nextElement(); |
| // Check if this cert is labeled a trust anchor. |
| if (alias.contains(" [jdk")) { |
| X509Certificate cert = (X509Certificate) cacerts |
| .getCertificate(alias); |
| certs.add(X509CertImpl.getFingerprint(HASH, cert)); |
| } |
| } |
| } |
| } catch (Exception e) { |
| if (debug != null) { |
| debug.println("Error parsing cacerts"); |
| } |
| e.printStackTrace(); |
| } |
| return null; |
| } |
| }); |
| } |
| |
| /** |
| * Checks if a certificate is a trust anchor. |
| * |
| * @param cert the certificate to check |
| * @return true if the certificate is trusted. |
| */ |
| public static boolean contains(X509Certificate cert) { |
| String key = X509CertImpl.getFingerprint(HASH, cert); |
| boolean result = certs.contains(key); |
| if (result && debug != null) { |
| debug.println("AnchorCertificate.contains: matched " + |
| cert.getSubjectDN()); |
| } |
| return result; |
| } |
| |
| private AnchorCertificates() {} |
| } |