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Java example source code file (CertUtils.java)
The CertUtils.java Java example source code/* * Copyright (c) 2003, 2007, 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. */ /** * * @author Sean Mullan * @author Steve Hanna * */ import java.io.ByteArrayOutputStream; import java.io.File; import java.io.FileInputStream; import java.io.InputStream; import java.io.IOException; import java.security.cert.CertificateFactory; import java.security.cert.CertPath; import java.security.cert.CertPathBuilder; import java.security.cert.CertPathValidator; import java.security.cert.CertStore; import java.security.cert.CollectionCertStoreParameters; import java.security.cert.PKIXBuilderParameters; import java.security.cert.PKIXCertPathBuilderResult; import java.security.cert.PKIXCertPathValidatorResult; import java.security.cert.PKIXParameters; import java.security.cert.X509Certificate; import java.security.cert.X509CRL; import java.util.ArrayList; import java.util.HashSet; import java.util.List; import java.util.Set; /** * Static utility methods useful for testing certificate/certpath APIs. */ public class CertUtils { private CertUtils() {} /** * Get a DER-encoded X.509 certificate from a file. * * @param certFilePath path to file containing DER-encoded certificate * @return X509Certificate * @throws IOException on error */ public static X509Certificate getCertFromFile(String certFilePath) throws IOException { X509Certificate cert = null; try { File certFile = new File(System.getProperty("test.src", "."), certFilePath); if (!certFile.canRead()) throw new IOException("File " + certFile.toString() + " is not a readable file."); FileInputStream certFileInputStream = new FileInputStream(certFile); CertificateFactory cf = CertificateFactory.getInstance("X509"); cert = (X509Certificate) cf.generateCertificate(certFileInputStream); } catch (Exception e) { e.printStackTrace(); throw new IOException("Can't construct X509Certificate: " + e.getMessage()); } return cert; } /** * Get a DER-encoded X.509 CRL from a file. * * @param crlFilePath path to file containing DER-encoded CRL * @return X509CRL * @throws IOException on error */ public static X509CRL getCRLFromFile(String crlFilePath) throws IOException { X509CRL crl = null; try { File crlFile = new File(System.getProperty("test.src", "."), crlFilePath); if (!crlFile.canRead()) throw new IOException("File " + crlFile.toString() + " is not a readable file."); FileInputStream crlFileInputStream = new FileInputStream(crlFile); CertificateFactory cf = CertificateFactory.getInstance("X509"); crl = (X509CRL) cf.generateCRL(crlFileInputStream); } catch (Exception e) { e.printStackTrace(); throw new IOException("Can't construct X509CRL: " + e.getMessage()); } return crl; } /** * Read a bunch of certs from files and create a CertPath from them. * * @param fileNames an array of <code>Strings that are file names * @throws Exception on error */ public static CertPath buildPath(String [] fileNames) throws Exception { return buildPath("", fileNames); } /** * Read a bunch of certs from files and create a CertPath from them. * * @param relPath relative path containing certs (must end in * file.separator) * @param fileNames an array of <code>Strings that are file names * @throws Exception on error */ public static CertPath buildPath(String relPath, String [] fileNames) throws Exception { List<X509Certificate> list = new ArrayList Other Java examples (source code examples)Here is a short list of links related to this Java CertUtils.java source code file: |
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