Examples with GeneralNames org.gudy.bouncycastle.asn1.x509.GeneralNames used on opensource projects

Example 46 with GeneralNames

use of org.gudy.bouncycastle.asn1.x509.GeneralNames in project Bytecoder by mirkosertic.

the class Builder method targetDistance.

/**
 * Determine how close a given certificate gets you toward
 * a given target.
 *
 * @param constraints Current NameConstraints; if null,
 *        then caller must verify NameConstraints
 *        independently, realizing that this certificate
 *        may not actually lead to the target at all.
 * @param cert Candidate certificate for chain
 * @param target GeneralNameInterface name of target
 * @return distance from this certificate to target:
 * <ul>
 * <li>-1 means certificate could be CA for target, but
 *     there are no NameConstraints limiting how close
 * <li> 0 means certificate subject or subjectAltName
 *      matches target
 * <li> 1 means certificate is permitted to be CA for
 *      target.
 * <li> 2 means certificate is permitted to be CA for
 *      parent of target.
 * <li>&gt;0 in general, means certificate is permitted
 *     to be a CA for this distance higher in the naming
 *     hierarchy than the target, plus 1.
 * </ul>
 * <p>Note that the subject and/or subjectAltName of the
 * candidate cert does not have to be an ancestor of the
 * target in order to be a CA that can issue a certificate to
 * the target. In these cases, the target distance is calculated
 * by inspecting the NameConstraints extension in the candidate
 * certificate. For example, suppose the target is an X.500 DN with
 * a value of "CN=mullan,OU=ireland,O=sun,C=us" and the
 * NameConstraints extension in the candidate certificate
 * includes a permitted component of "O=sun,C=us", which implies
 * that the candidate certificate is allowed to issue certs in
 * the "O=sun,C=us" namespace. The target distance is 3
 * ((distance of permitted NC from target) + 1).
 * The (+1) is added to distinguish the result from the case
 * which returns (0).
 * @throws IOException if certificate does not get closer
 */
static int targetDistance(NameConstraintsExtension constraints, X509Certificate cert, GeneralNameInterface target) throws IOException {
    /* ensure that certificate satisfies existing name constraints */
    if (constraints != null && !constraints.verify(cert)) {
        throw new IOException("certificate does not satisfy existing name " + "constraints");
    }
    X509CertImpl certImpl;
    try {
        certImpl = X509CertImpl.toImpl(cert);
    } catch (CertificateException e) {
        throw new IOException("Invalid certificate", e);
    }
    /* see if certificate subject matches target */
    X500Name subject = X500Name.asX500Name(certImpl.getSubjectX500Principal());
    if (subject.equals(target)) {
        /* match! */
        return 0;
    }
    SubjectAlternativeNameExtension altNameExt = certImpl.getSubjectAlternativeNameExtension();
    if (altNameExt != null) {
        GeneralNames altNames = altNameExt.get(SubjectAlternativeNameExtension.SUBJECT_NAME);
        /* see if any alternative name matches target */
        if (altNames != null) {
            for (int j = 0, n = altNames.size(); j < n; j++) {
                GeneralNameInterface altName = altNames.get(j).getName();
                if (altName.equals(target)) {
                    return 0;
                }
            }
        }
    }
    /* no exact match; see if certificate can get us to target */
    /* first, get NameConstraints out of certificate */
    NameConstraintsExtension ncExt = certImpl.getNameConstraintsExtension();
    if (ncExt == null) {
        return -1;
    }
    /* merge certificate's NameConstraints with current NameConstraints */
    if (constraints != null) {
        constraints.merge(ncExt);
    } else {
        // Make sure we do a clone here, because we're probably
        // going to modify this object later and we don't want to
        // be sharing it with a Certificate object!
        constraints = (NameConstraintsExtension) ncExt.clone();
    }
    if (debug != null) {
        debug.println("Builder.targetDistance() merged constraints: " + String.valueOf(constraints));
    }
    /* reduce permitted by excluded */
    GeneralSubtrees permitted = constraints.get(NameConstraintsExtension.PERMITTED_SUBTREES);
    GeneralSubtrees excluded = constraints.get(NameConstraintsExtension.EXCLUDED_SUBTREES);
    if (permitted != null) {
        permitted.reduce(excluded);
    }
    if (debug != null) {
        debug.println("Builder.targetDistance() reduced constraints: " + permitted);
    }
    /* see if new merged constraints allow target */
    if (!constraints.verify(target)) {
        throw new IOException("New certificate not allowed to sign " + "certificate for target");
    }
    /* find distance to target, if any, in permitted */
    if (permitted == null) {
        /* certificate is unconstrained; could sign for anything */
        return -1;
    }
    for (int i = 0, n = permitted.size(); i < n; i++) {
        GeneralNameInterface perName = permitted.get(i).getName().getName();
        int distance = distance(perName, target, -1);
        if (distance >= 0) {
            return (distance + 1);
        }
    }
    /* no matching type in permitted; cert holder could certify target */
    return -1;
}

Example 47 with GeneralNames

use of org.gudy.bouncycastle.asn1.x509.GeneralNames in project signer by demoiselle.

the class SigningCertificate method getValue.

@Override
public Attribute getValue() {
    try {
        X509Certificate cert = (X509Certificate) certificates[0];
        Digest digest = DigestFactory.getInstance().factoryDefault();
        digest.setAlgorithm(DigestAlgorithmEnum.SHA_1);
        byte[] hash = digest.digest(cert.getEncoded());
        X500Name dirName = new X500Name(cert.getSubjectDN().getName());
        GeneralName name = new GeneralName(dirName);
        GeneralNames issuer = new GeneralNames(name);
        ASN1Integer serial = new ASN1Integer(cert.getSerialNumber());
        IssuerSerial issuerSerial = new IssuerSerial(issuer, serial);
        ESSCertID essCertId = new ESSCertID(hash, issuerSerial);
        return new Attribute(new ASN1ObjectIdentifier(identifier), new DERSet(new DERSequence(new ASN1Encodable[] { new DERSequence(essCertId), new DERSequence(DERNull.INSTANCE) })));
    } catch (CertificateEncodingException ex) {
        throw new SignerException(ex.getMessage());
    }
}

Example 48 with GeneralNames

use of org.gudy.bouncycastle.asn1.x509.GeneralNames in project signer by demoiselle.

the class CertificateRefs method getValue.

@Override
public Attribute getValue() throws SignerException {
    try {
        int chainSize = certificates.length - 1;
        OtherCertID[] arrayOtherCertID = new OtherCertID[chainSize];
        for (int i = 1; i <= chainSize; i++) {
            X509Certificate issuerCert = null;
            X509Certificate cert = (X509Certificate) certificates[i];
            if (i < chainSize) {
                issuerCert = (X509Certificate) certificates[i + 1];
            } else {
                // raiz
                issuerCert = (X509Certificate) certificates[i];
            }
            Digest digest = DigestFactory.getInstance().factoryDefault();
            digest.setAlgorithm(DigestAlgorithmEnum.SHA_256);
            byte[] certHash = digest.digest(cert.getEncoded());
            X500Name dirName = new X500Name(issuerCert.getSubjectX500Principal().getName());
            GeneralName name = new GeneralName(dirName);
            GeneralNames issuer = new GeneralNames(name);
            ASN1Integer serialNumber = new ASN1Integer(cert.getSerialNumber());
            IssuerSerial issuerSerial = new IssuerSerial(issuer, serialNumber);
            AlgorithmIdentifier algId = new AlgorithmIdentifier(NISTObjectIdentifiers.id_sha256);
            OtherCertID otherCertID = new OtherCertID(algId, certHash, issuerSerial);
            arrayOtherCertID[i - 1] = otherCertID;
        }
        return new Attribute(new ASN1ObjectIdentifier(identifier), new DERSet(new ASN1Encodable[] { new DERSequence(arrayOtherCertID) }));
    } catch (CertificateEncodingException e) {
        throw new SignerException(e.getMessage());
    }
}

Example 49 with GeneralNames

use of org.gudy.bouncycastle.asn1.x509.GeneralNames in project candlepin by candlepin.

the class BouncyCastlePKIUtility method createX509Certificate.

@Override
public X509Certificate createX509Certificate(String dn, Set<X509ExtensionWrapper> extensions, Set<X509ByteExtensionWrapper> byteExtensions, Date startDate, Date endDate, KeyPair clientKeyPair, BigInteger serialNumber, String alternateName) throws GeneralSecurityException, IOException {
    X509Certificate caCert = reader.getCACert();
    byte[] publicKeyEncoded = clientKeyPair.getPublic().getEncoded();
    X509v3CertificateBuilder certGen = new X509v3CertificateBuilder(X500Name.getInstance(caCert.getSubjectX500Principal().getEncoded()), serialNumber, startDate, endDate, new X500Name(dn), SubjectPublicKeyInfo.getInstance(publicKeyEncoded));
    // set key usage - required for proper x509 function
    KeyUsage keyUsage = new KeyUsage(KeyUsage.digitalSignature | KeyUsage.keyEncipherment | KeyUsage.dataEncipherment);
    // add SSL extensions - required for proper x509 function
    NetscapeCertType certType = new NetscapeCertType(NetscapeCertType.sslClient | NetscapeCertType.smime);
    certGen.addExtension(MiscObjectIdentifiers.netscapeCertType, false, certType);
    certGen.addExtension(Extension.keyUsage, false, keyUsage);
    JcaX509ExtensionUtils extensionUtil = new JcaX509ExtensionUtils();
    AuthorityKeyIdentifier aki = extensionUtil.createAuthorityKeyIdentifier(caCert);
    certGen.addExtension(Extension.authorityKeyIdentifier, false, aki.getEncoded());
    certGen.addExtension(Extension.subjectKeyIdentifier, false, subjectKeyWriter.getSubjectKeyIdentifier(clientKeyPair, extensions));
    certGen.addExtension(Extension.extendedKeyUsage, false, new ExtendedKeyUsage(KeyPurposeId.id_kp_clientAuth));
    // Add an additional alternative name if provided.
    if (alternateName != null) {
        /*
             Why add the certificate subject again as an alternative name?  RFC 6125 Section 6.4.4
             stipulates that if SANs are provided, a validator MUST use them instead of the certificate
             subject.  If no SANs are present, the RFC allows the validator to use the subject field.  So,
             if we do have an SAN to add, we need to add the subject field again as an SAN.

             See http://stackoverflow.com/questions/5935369 and
             https://tools.ietf.org/html/rfc6125#section-6.4.4 and

             NB: These extensions should *not* be marked critical since the subject field is not empty.
            */
        GeneralName subject = new GeneralName(GeneralName.directoryName, dn);
        GeneralName name = new GeneralName(GeneralName.directoryName, "CN=" + alternateName);
        ASN1Encodable[] altNameArray = { subject, name };
        GeneralNames altNames = GeneralNames.getInstance(new DERSequence(altNameArray));
        certGen.addExtension(Extension.subjectAlternativeName, false, altNames);
    }
    if (extensions != null) {
        for (X509ExtensionWrapper wrapper : extensions) {
            // Bouncycastle hates null values. So, set them to blank
            // if they are null
            String value = wrapper.getValue() == null ? "" : wrapper.getValue();
            certGen.addExtension(wrapper.toASN1Primitive(), wrapper.isCritical(), new DERUTF8String(value));
        }
    }
    if (byteExtensions != null) {
        for (X509ByteExtensionWrapper wrapper : byteExtensions) {
            // Bouncycastle hates null values. So, set them to blank
            // if they are null
            byte[] value = wrapper.getValue() == null ? new byte[0] : wrapper.getValue();
            certGen.addExtension(wrapper.toASN1Primitive(), wrapper.isCritical(), new DEROctetString(value));
        }
    }
    JcaContentSignerBuilder builder = new JcaContentSignerBuilder(SIGNATURE_ALGO).setProvider(BC_PROVIDER);
    ContentSigner signer;
    try {
        signer = builder.build(reader.getCaKey());
    } catch (OperatorCreationException e) {
        throw new IOException(e);
    }
    // Generate the certificate
    return new JcaX509CertificateConverter().getCertificate(certGen.build(signer));
}

Example 50 with GeneralNames

use of org.gudy.bouncycastle.asn1.x509.GeneralNames in project credhub by cloudfoundry-incubator.

the class CertificateReaderTest method returnsParametersCorrectly.

@Test
public void returnsParametersCorrectly() {
    final String distinguishedName = "O=test-org, ST=Jupiter, C=MilkyWay, CN=test-common-name, OU=test-org-unit, L=Europa";
    final GeneralNames generalNames = new GeneralNames(new GeneralName(GeneralName.dNSName, "SolarSystem"));
    CertificateReader certificateReader = new CertificateReader(CertificateStringConstants.BIG_TEST_CERT);
    assertThat(certificateReader.getAlternativeNames(), equalTo(generalNames));
    assertThat(asList(certificateReader.getExtendedKeyUsage().getUsages()), containsInAnyOrder(KeyPurposeId.id_kp_serverAuth, KeyPurposeId.id_kp_clientAuth));
    assertThat(certificateReader.getKeyUsage().hasUsages(KeyUsage.digitalSignature), equalTo(true));
    assertThat(certificateReader.getSubjectName().toString(), equalTo(distinguishedName));
}