sun.security.x509.BasicConstraintsExtension Java Examples

private static X509Certificate createSignedCertificate(final X509Certificate cetrificate, final X509Certificate issuerCertificate,
                                                       final PrivateKey issuerPrivateKey) {
    try {
        Principal issuer = issuerCertificate.getSubjectDN();
        String issuerSigAlg = issuerCertificate.getSigAlgName();

        byte[] inCertBytes = cetrificate.getTBSCertificate();
        X509CertInfo info = new X509CertInfo(inCertBytes);
        info.set(X509CertInfo.ISSUER, (X500Name) issuer);

        //No need to add the BasicContraint for leaf cert
        if (!cetrificate.getSubjectDN().getName().equals("CN=TOP")) {
            CertificateExtensions exts = new CertificateExtensions();
            BasicConstraintsExtension bce = new BasicConstraintsExtension(true, -1);
            exts.set(BasicConstraintsExtension.NAME, new BasicConstraintsExtension(false, bce.getExtensionValue()));
            info.set(X509CertInfo.EXTENSIONS, exts);
        }

        final X509CertImpl outCert = new X509CertImpl(info);
        outCert.sign(issuerPrivateKey, issuerSigAlg);

        return outCert;
    } catch (final Exception ex) {
        throw new IllegalStateException(ex);
    }
}
 

public static void main(String [] args) throws Exception {
    new BasicConstraintsExtension(false, -1).encode(new ByteArrayOutputStream());
}
 

public static void main(String [] args) throws Exception {
    new BasicConstraintsExtension(false, -1).encode(new ByteArrayOutputStream());
}
 

public static void main(String [] args) throws Exception {
    new BasicConstraintsExtension(false, -1).encode(new ByteArrayOutputStream());
}
 

public static void main(String [] args) throws Exception {
    new BasicConstraintsExtension(false, -1).encode(new ByteArrayOutputStream());
}
 

public static void main(String [] args) throws Exception {
    new BasicConstraintsExtension(false, -1).encode(new ByteArrayOutputStream());
}
 

public static void main(String [] args) throws Exception {
    new BasicConstraintsExtension(false, -1).encode(new ByteArrayOutputStream());
}
 

public static void main(String [] args) throws Exception {
    new BasicConstraintsExtension(false, -1).encode(new ByteArrayOutputStream());
}
 

public static void main(String [] args) throws Exception {
    new BasicConstraintsExtension(false, -1).encode(new ByteArrayOutputStream());
}
 

public static void main(String [] args) throws Exception {
    new BasicConstraintsExtension(false, -1).encode(new ByteArrayOutputStream());
}
 

public static void main(String [] args) throws Exception {
    new BasicConstraintsExtension(false, -1).encode(new ByteArrayOutputStream());
}
 

public static void main(String [] args) throws Exception {
    new BasicConstraintsExtension(false, -1).encode(new ByteArrayOutputStream());
}
 

public static X509CertInfo createCertificateInfo(final String subjectDn, final String altNameIp,
		final String altNameHost, final PublicKey subjectPublicKey, final long validForDays, final boolean makeCa,
		final String issuerDn, final String certificateSigningAlgorithm) {

	try {

		// Look up algorithm based on CA private key
		final AlgorithmId algorithmId = AlgorithmId.get(certificateSigningAlgorithm);

		// Define validity period
		final Date notBefore = new Date(new Date().getTime() - 300); // 5 minutes prior to avoid clock skew issues
		final Date notAfter = new Date(notBefore.getTime() + (validForDays * 24 * 3600 * 1000));
		final CertificateValidity validity = new CertificateValidity(notBefore, notAfter);

		// Random serial number
		final BigInteger serialNumber = RandomNumberGenerator.generateRandomInteger(128);

		// Define information within certificate
		final X509CertInfo certificateInfo = new X509CertInfo();
		certificateInfo.set(X509CertInfo.VERSION, new CertificateVersion(CertificateVersion.V3));
		certificateInfo.set(X509CertInfo.VALIDITY, validity);
		certificateInfo.set(X509CertInfo.SERIAL_NUMBER, new CertificateSerialNumber(serialNumber));
		certificateInfo.set(X509CertInfo.SUBJECT, new X500Name(subjectDn));
		certificateInfo.set(X509CertInfo.ISSUER, new X500Name(issuerDn));
		certificateInfo.set(X509CertInfo.KEY, new CertificateX509Key(subjectPublicKey));
		certificateInfo.set(X509CertInfo.ALGORITHM_ID, new CertificateAlgorithmId(algorithmId));

		// Process extensions
		final CertificateExtensions extensions = new CertificateExtensions();

		// Make the issued certificate a sub-CA of this one (or self-signed)
		final BasicConstraintsExtension bce = new BasicConstraintsExtension(makeCa, 0);
		extensions.set(BasicConstraintsExtension.NAME,
				new BasicConstraintsExtension(true, bce.getExtensionValue()));

		// Add a subject alternative name (if not null)
		if (altNameIp != null) {
			final GeneralNames generalNames = new GeneralNames();
			generalNames.add(new GeneralName(new IPAddressName(altNameIp)));
			generalNames.add(new GeneralName(new DNSName(altNameHost)));
			final SubjectAlternativeNameExtension san = new SubjectAlternativeNameExtension(false, generalNames);
			extensions.set(SubjectAlternativeNameExtension.NAME, san);
		}

		certificateInfo.set(X509CertInfo.EXTENSIONS, extensions);

		return certificateInfo;

	} catch (GeneralSecurityException | IOException e) {
		throw new RuntimeException(e);
	}
}
 

protected static X509CertInfo createCertificateInfo(final String subjectDn, final String altNameIp,
		final String altNameHost, final PublicKey subjectPublicKey, final long validForDays, final boolean makeCa,
		final String issuerDn) {

	try {

		// Look up algorithm based on CA private key
		final AlgorithmId algorithmId = AlgorithmId.get(CERTIFICATE_SIGNING_ALGORITHM);

		// Define validity period
		final Date notBefore = new Date(new Date().getTime() - 300); // 5 minutes prior to avoid clock skew issues
		final Date notAfter = new Date(notBefore.getTime() + (validForDays * 24 * 3600 * 1000));
		final CertificateValidity validity = new CertificateValidity(notBefore, notAfter);

		// Random serial number
		final BigInteger serialNumber = RandomNumberGenerator.generateRandomInteger(128);

		// Define information within certificate
		final X509CertInfo certificateInfo = new X509CertInfo();
		certificateInfo.set(X509CertInfo.VERSION, new CertificateVersion(CertificateVersion.V3));
		certificateInfo.set(X509CertInfo.VALIDITY, validity);
		certificateInfo.set(X509CertInfo.SERIAL_NUMBER, new CertificateSerialNumber(serialNumber));
		certificateInfo.set(X509CertInfo.SUBJECT, new X500Name(subjectDn));
		certificateInfo.set(X509CertInfo.ISSUER, new X500Name(issuerDn));
		certificateInfo.set(X509CertInfo.KEY, new CertificateX509Key(subjectPublicKey));
		certificateInfo.set(X509CertInfo.ALGORITHM_ID, new CertificateAlgorithmId(algorithmId));

		// Process extensions
		final CertificateExtensions extensions = new CertificateExtensions();

		// Make the issued certificate a sub-CA of this one (or self-signed)
		final BasicConstraintsExtension bce = new BasicConstraintsExtension(makeCa, 0);
		extensions.set(BasicConstraintsExtension.NAME,
				new BasicConstraintsExtension(true, bce.getExtensionValue()));

		// Add a subject alternative name (if not null)
		if (altNameIp != null) {
			final GeneralNames generalNames = new GeneralNames();
			generalNames.add(new GeneralName(new IPAddressName(altNameIp)));
			generalNames.add(new GeneralName(new DNSName(altNameHost)));
			final SubjectAlternativeNameExtension san = new SubjectAlternativeNameExtension(false, generalNames);
			extensions.set(SubjectAlternativeNameExtension.NAME, san);
		}

		certificateInfo.set(X509CertInfo.EXTENSIONS, extensions);

		return certificateInfo;

	} catch (GeneralSecurityException | IOException e) {
		throw new RuntimeException(e);
	}
}
 

public static void main(String [] args) throws Exception {
    new BasicConstraintsExtension(false, -1).encode(new ByteArrayOutputStream());
}
 

public static void main(String [] args) throws Exception {
    new BasicConstraintsExtension(false, -1).encode(new ByteArrayOutputStream());
}
 

/**
 * Set the Basic Constraints Extension for a certificate.
 *
 * @param crit {@code true} if critical, {@code false} otherwise
 * @param isCA {@code true} if the extension will be on a CA certificate,
 * {@code false} otherwise
 * @param maxPathLen The maximum path length issued by this CA.  Values
 * less than zero will omit this field from the resulting extension and
 * no path length constraint will be asserted.
 *
 * @throws IOException if an encoding error occurs.
 */
public void addBasicConstraintsExt(boolean crit, boolean isCA,
        int maxPathLen) throws IOException {
    addExtension(new BasicConstraintsExtension(crit, isCA, maxPathLen));
}