Java example source code file (TestCACerts.java)

This example Java source code file (TestCACerts.java) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

enumeration, exception, fileinputstream, keystore, pkcs11test, provider, publickey, rsa, security, sep, string, testcacerts, util, x509certificate

The TestCACerts.java Java example source code

/*
 * Copyright (c) 2003, 2011, 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 4856966
 * @summary Test the new RSA provider can verify all the RSA certs in the cacerts file
 * @author Andreas Sterbenz
 * @library ..
 */

// this test serves as our known answer test

import java.io.*;
import java.util.*;

import java.security.*;
import java.security.cert.*;

public class TestCACerts extends PKCS11Test {

    private final static char SEP = File.separatorChar;

    public static void main(String[] args) throws Exception {
        main(new TestCACerts());
    }

    public void main(Provider p) throws Exception {
        long start = System.currentTimeMillis();
        Security.addProvider(p);
        try {
            String PROVIDER = p.getName();
            String javaHome = System.getProperty("java.home");
            String caCerts = javaHome + SEP + "lib" + SEP + "security" + SEP + "cacerts";
            InputStream in = new FileInputStream(caCerts);
            KeyStore ks = KeyStore.getInstance(KeyStore.getDefaultType());
            ks.load(in, null);
            in.close();
            for (Enumeration e = ks.aliases(); e.hasMoreElements(); ) {
                String alias = (String)e.nextElement();
                if (ks.isCertificateEntry(alias)) {
                    System.out.println("* Testing " + alias + "...");
                    X509Certificate cert = (X509Certificate)ks.getCertificate(alias);
                    PublicKey key = cert.getPublicKey();
                    String alg = key.getAlgorithm();
                    if (alg.equals("RSA")) {
                        System.out.println("Signature algorithm: " + cert.getSigAlgName());
                        cert.verify(key, PROVIDER);
                    } else {
                        System.out.println("Skipping cert with key: " + alg);
                    }
                } else {
                    System.out.println("Skipping alias " + alias);
                }
            }
            long stop = System.currentTimeMillis();
            System.out.println("All tests passed (" + (stop - start) + " ms).");
        } finally {
            Security.removeProvider(p.getName());
        }
    }
}