mitm.common.security.certificate.GenerateSSLCertificate.java Source code

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Here is the source code for mitm.common.security.certificate.GenerateSSLCertificate.java

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/*
 * Copyright (c) 2008-2011, Martijn Brinkers, Djigzo.
 * 
 * This file is part of Djigzo email encryption.
 *
 * Djigzo is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License 
 * version 3, 19 November 2007 as published by the Free Software 
 * Foundation.
 *
 * Djigzo 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 Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public 
 * License along with Djigzo. If not, see <http://www.gnu.org/licenses/>
 *
 * Additional permission under GNU AGPL version 3 section 7
 * 
 * If you modify this Program, or any covered work, by linking or 
 * combining it with aspectjrt.jar, aspectjweaver.jar, tyrex-1.0.3.jar, 
 * freemarker.jar, dom4j.jar, mx4j-jmx.jar, mx4j-tools.jar, 
 * spice-classman-1.0.jar, spice-loggerstore-0.5.jar, spice-salt-0.8.jar, 
 * spice-xmlpolicy-1.0.jar, saaj-api-1.3.jar, saaj-impl-1.3.jar, 
 * wsdl4j-1.6.1.jar (or modified versions of these libraries), 
 * containing parts covered by the terms of Eclipse Public License, 
 * tyrex license, freemarker license, dom4j license, mx4j license,
 * Spice Software License, Common Development and Distribution License
 * (CDDL), Common Public License (CPL) the licensors of this Program grant 
 * you additional permission to convey the resulting work.
 */
package mitm.common.security.certificate;

import static org.junit.Assert.assertNotNull;

import java.io.File;
import java.io.FileOutputStream;
import java.math.BigInteger;
import java.security.KeyPair;
import java.security.KeyPairGenerator;
import java.security.KeyStore;
import java.security.SecureRandom;
import java.security.cert.Certificate;
import java.security.cert.X509Certificate;
import java.util.Date;
import java.util.LinkedList;
import java.util.List;
import java.util.Set;
import java.util.TreeSet;

import javax.security.auth.x500.X500Principal;

import mitm.common.security.SecurityFactory;
import mitm.common.security.SecurityFactoryFactory;
import mitm.common.security.certificate.impl.StandardSerialNumberGenerator;

import org.apache.commons.lang.time.DateUtils;
import org.apache.log4j.PropertyConfigurator;
import org.junit.BeforeClass;
import org.junit.Test;

public class GenerateSSLCertificate {
    private static SecurityFactory securityFactory;

    private static KeyStore keyStore;

    private static List<X509Certificate> certificates = new LinkedList<X509Certificate>();

    @BeforeClass
    public static void setUpBeforeClass() throws Exception {
        PropertyConfigurator.configure("conf/log4j.properties");

        securityFactory = SecurityFactoryFactory.getSecurityFactory();

        keyStore = securityFactory.createKeyStore("PKCS12");

        // initialize key store
        keyStore.load(null);
    }

    @Test
    public void generateCertificate() throws Exception {
        generateSSLCertificate();

        File p12File = new File("test/tmp/sslCertificate.p12");

        FileOutputStream output = new FileOutputStream(p12File);

        keyStore.store(output, "djigzo".toCharArray());
    }

    /*
     * Generates a SSL certificate
     */
    private void generateSSLCertificate() throws Exception {
        X509CertificateBuilder certificateBuilder = securityFactory.createX509CertificateBuilder();

        KeyPairGenerator keyPairGenerator = securityFactory.createKeyPairGenerator("RSA");

        SecureRandom randomSource = securityFactory.createSecureRandom();

        keyPairGenerator.initialize(1024, randomSource);

        KeyPair keyPair = keyPairGenerator.generateKeyPair();

        X500PrincipalBuilder subjectBuilder = new X500PrincipalBuilder();

        subjectBuilder.setCommonName("www.example.com");
        subjectBuilder.setCountryCode("NL");
        subjectBuilder.setLocality("Amsterdam");
        subjectBuilder.setState("NH");

        X500Principal subject = subjectBuilder.buildPrincipal();

        Set<ExtendedKeyUsageType> extendedKeyUsage = new TreeSet<ExtendedKeyUsageType>();

        extendedKeyUsage.add(ExtendedKeyUsageType.CLIENTAUTH);
        extendedKeyUsage.add(ExtendedKeyUsageType.EMAILPROTECTION);
        extendedKeyUsage.add(ExtendedKeyUsageType.SERVERAUTH);

        SerialNumberGenerator sng = new StandardSerialNumberGenerator();

        BigInteger serialNumber = sng.generate();

        Date now = new Date();

        certificateBuilder.setSubject(subject);
        certificateBuilder.setIssuer(subject);
        certificateBuilder.setExtendedKeyUsage(extendedKeyUsage, false);
        certificateBuilder.setNotBefore(DateUtils.addDays(now, -20));
        certificateBuilder.setNotAfter(DateUtils.addYears(now, 20));
        certificateBuilder.setPublicKey(keyPair.getPublic());
        certificateBuilder.setSerialNumber(serialNumber);
        certificateBuilder.setSignatureAlgorithm("SHA1WithRSAEncryption");

        X509Certificate certificate = certificateBuilder.generateCertificate(keyPair.getPrivate(), null);

        assertNotNull(certificate);

        certificates.add(certificate);

        Certificate[] chain = new Certificate[] { certificate };

        keyStore.setKeyEntry("djigzo", keyPair.getPrivate(), null, chain);
    }
}