Examples with ExtendedPKIXBuilderParameters org.bouncycastle.x509.ExtendedPKIXBuilderParameters used on opensource projects

Example 1 with ExtendedPKIXBuilderParameters

use of org.bouncycastle.x509.ExtendedPKIXBuilderParameters in project XobotOS by xamarin.

the class RFC3280CertPathUtilities method processCRLF.

/**
     * Obtain and validate the certification path for the complete CRL issuer.
     * If a key usage extension is present in the CRL issuer's certificate,
     * verify that the cRLSign bit is set.
     *
     * @param crl                CRL which contains revocation information for the certificate
     *                           <code>cert</code>.
     * @param cert               The attribute certificate or certificate to check if it is
     *                           revoked.
     * @param defaultCRLSignCert The issuer certificate of the certificate <code>cert</code>.
     * @param defaultCRLSignKey  The public key of the issuer certificate
     *                           <code>defaultCRLSignCert</code>.
     * @param paramsPKIX         paramsPKIX PKIX parameters.
     * @param certPathCerts      The certificates on the certification path.
     * @return A <code>Set</code> with all keys of possible CRL issuer
     *         certificates.
     * @throws AnnotatedException if the CRL is not valid or the status cannot be checked or
     *                            some error occurs.
     */
protected static Set processCRLF(X509CRL crl, Object cert, X509Certificate defaultCRLSignCert, PublicKey defaultCRLSignKey, ExtendedPKIXParameters paramsPKIX, List certPathCerts) throws AnnotatedException {
    // (f)
    // get issuer from CRL
    X509CertStoreSelector selector = new X509CertStoreSelector();
    try {
        byte[] issuerPrincipal = CertPathValidatorUtilities.getIssuerPrincipal(crl).getEncoded();
        selector.setSubject(issuerPrincipal);
    } catch (IOException e) {
        throw new AnnotatedException("Subject criteria for certificate selector to find issuer certificate for CRL could not be set.", e);
    }
    // get CRL signing certs
    Collection coll;
    try {
        coll = CertPathValidatorUtilities.findCertificates(selector, paramsPKIX.getStores());
        coll.addAll(CertPathValidatorUtilities.findCertificates(selector, paramsPKIX.getAdditionalStores()));
        coll.addAll(CertPathValidatorUtilities.findCertificates(selector, paramsPKIX.getCertStores()));
    } catch (AnnotatedException e) {
        throw new AnnotatedException("Issuer certificate for CRL cannot be searched.", e);
    }
    coll.add(defaultCRLSignCert);
    Iterator cert_it = coll.iterator();
    List validCerts = new ArrayList();
    List validKeys = new ArrayList();
    while (cert_it.hasNext()) {
        X509Certificate signingCert = (X509Certificate) cert_it.next();
        /*
             * CA of the certificate, for which this CRL is checked, has also
             * signed CRL, so skip the path validation, because is already done
             */
        if (signingCert.equals(defaultCRLSignCert)) {
            validCerts.add(signingCert);
            validKeys.add(defaultCRLSignKey);
            continue;
        }
        try {
            CertPathBuilder builder = CertPathBuilder.getInstance("PKIX", BouncyCastleProvider.PROVIDER_NAME);
            selector = new X509CertStoreSelector();
            selector.setCertificate(signingCert);
            ExtendedPKIXParameters temp = (ExtendedPKIXParameters) paramsPKIX.clone();
            temp.setTargetCertConstraints(selector);
            ExtendedPKIXBuilderParameters params = (ExtendedPKIXBuilderParameters) ExtendedPKIXBuilderParameters.getInstance(temp);
            /*
                 * if signingCert is placed not higher on the cert path a
                 * dependency loop results. CRL for cert is checked, but
                 * signingCert is needed for checking the CRL which is dependent
                 * on checking cert because it is higher in the cert path and so
                 * signing signingCert transitively. so, revocation is disabled,
                 * forgery attacks of the CRL are detected in this outer loop
                 * for all other it must be enabled to prevent forgery attacks
                 */
            if (certPathCerts.contains(signingCert)) {
                params.setRevocationEnabled(false);
            } else {
                params.setRevocationEnabled(true);
            }
            List certs = builder.build(params).getCertPath().getCertificates();
            validCerts.add(signingCert);
            validKeys.add(CertPathValidatorUtilities.getNextWorkingKey(certs, 0));
        } catch (CertPathBuilderException e) {
            throw new AnnotatedException("Internal error.", e);
        } catch (CertPathValidatorException e) {
            throw new AnnotatedException("Public key of issuer certificate of CRL could not be retrieved.", e);
        } catch (Exception e) {
            throw new RuntimeException(e.getMessage());
        }
    }
    Set checkKeys = new HashSet();
    AnnotatedException lastException = null;
    for (int i = 0; i < validCerts.size(); i++) {
        X509Certificate signCert = (X509Certificate) validCerts.get(i);
        boolean[] keyusage = signCert.getKeyUsage();
        if (keyusage != null && (keyusage.length < 7 || !keyusage[CRL_SIGN])) {
            lastException = new AnnotatedException("Issuer certificate key usage extension does not permit CRL signing.");
        } else {
            checkKeys.add(validKeys.get(i));
        }
    }
    if (checkKeys.isEmpty() && lastException == null) {
        throw new AnnotatedException("Cannot find a valid issuer certificate.");
    }
    if (checkKeys.isEmpty() && lastException != null) {
        throw lastException;
    }
    return checkKeys;
}

Example 2 with ExtendedPKIXBuilderParameters

use of org.bouncycastle.x509.ExtendedPKIXBuilderParameters in project robovm by robovm.

the class RFC3280CertPathUtilities method processCRLF.

/**
     * Obtain and validate the certification path for the complete CRL issuer.
     * If a key usage extension is present in the CRL issuer's certificate,
     * verify that the cRLSign bit is set.
     *
     * @param crl                CRL which contains revocation information for the certificate
     *                           <code>cert</code>.
     * @param cert               The attribute certificate or certificate to check if it is
     *                           revoked.
     * @param defaultCRLSignCert The issuer certificate of the certificate <code>cert</code>.
     * @param defaultCRLSignKey  The public key of the issuer certificate
     *                           <code>defaultCRLSignCert</code>.
     * @param paramsPKIX         paramsPKIX PKIX parameters.
     * @param certPathCerts      The certificates on the certification path.
     * @return A <code>Set</code> with all keys of possible CRL issuer
     *         certificates.
     * @throws AnnotatedException if the CRL is not valid or the status cannot be checked or
     *                            some error occurs.
     */
protected static Set processCRLF(X509CRL crl, Object cert, X509Certificate defaultCRLSignCert, PublicKey defaultCRLSignKey, ExtendedPKIXParameters paramsPKIX, List certPathCerts) throws AnnotatedException {
    // (f)
    // get issuer from CRL
    X509CertStoreSelector selector = new X509CertStoreSelector();
    try {
        byte[] issuerPrincipal = CertPathValidatorUtilities.getIssuerPrincipal(crl).getEncoded();
        selector.setSubject(issuerPrincipal);
    } catch (IOException e) {
        throw new AnnotatedException("Subject criteria for certificate selector to find issuer certificate for CRL could not be set.", e);
    }
    // get CRL signing certs
    Collection coll;
    try {
        coll = CertPathValidatorUtilities.findCertificates(selector, paramsPKIX.getStores());
        coll.addAll(CertPathValidatorUtilities.findCertificates(selector, paramsPKIX.getAdditionalStores()));
        coll.addAll(CertPathValidatorUtilities.findCertificates(selector, paramsPKIX.getCertStores()));
    } catch (AnnotatedException e) {
        throw new AnnotatedException("Issuer certificate for CRL cannot be searched.", e);
    }
    coll.add(defaultCRLSignCert);
    Iterator cert_it = coll.iterator();
    List validCerts = new ArrayList();
    List validKeys = new ArrayList();
    while (cert_it.hasNext()) {
        X509Certificate signingCert = (X509Certificate) cert_it.next();
        /*
             * CA of the certificate, for which this CRL is checked, has also
             * signed CRL, so skip the path validation, because is already done
             */
        if (signingCert.equals(defaultCRLSignCert)) {
            validCerts.add(signingCert);
            validKeys.add(defaultCRLSignKey);
            continue;
        }
        try {
            CertPathBuilder builder = CertPathBuilder.getInstance("PKIX", BouncyCastleProvider.PROVIDER_NAME);
            selector = new X509CertStoreSelector();
            selector.setCertificate(signingCert);
            ExtendedPKIXParameters temp = (ExtendedPKIXParameters) paramsPKIX.clone();
            temp.setTargetCertConstraints(selector);
            ExtendedPKIXBuilderParameters params = (ExtendedPKIXBuilderParameters) ExtendedPKIXBuilderParameters.getInstance(temp);
            /*
                 * if signingCert is placed not higher on the cert path a
                 * dependency loop results. CRL for cert is checked, but
                 * signingCert is needed for checking the CRL which is dependent
                 * on checking cert because it is higher in the cert path and so
                 * signing signingCert transitively. so, revocation is disabled,
                 * forgery attacks of the CRL are detected in this outer loop
                 * for all other it must be enabled to prevent forgery attacks
                 */
            if (certPathCerts.contains(signingCert)) {
                params.setRevocationEnabled(false);
            } else {
                params.setRevocationEnabled(true);
            }
            List certs = builder.build(params).getCertPath().getCertificates();
            validCerts.add(signingCert);
            validKeys.add(CertPathValidatorUtilities.getNextWorkingKey(certs, 0));
        } catch (CertPathBuilderException e) {
            throw new AnnotatedException("Internal error.", e);
        } catch (CertPathValidatorException e) {
            throw new AnnotatedException("Public key of issuer certificate of CRL could not be retrieved.", e);
        } catch (Exception e) {
            throw new RuntimeException(e.getMessage());
        }
    }
    Set checkKeys = new HashSet();
    AnnotatedException lastException = null;
    for (int i = 0; i < validCerts.size(); i++) {
        X509Certificate signCert = (X509Certificate) validCerts.get(i);
        boolean[] keyusage = signCert.getKeyUsage();
        if (keyusage != null && (keyusage.length < 7 || !keyusage[CRL_SIGN])) {
            lastException = new AnnotatedException("Issuer certificate key usage extension does not permit CRL signing.");
        } else {
            checkKeys.add(validKeys.get(i));
        }
    }
    if (checkKeys.isEmpty() && lastException == null) {
        throw new AnnotatedException("Cannot find a valid issuer certificate.");
    }
    if (checkKeys.isEmpty() && lastException != null) {
        throw lastException;
    }
    return checkKeys;
}

Example 3 with ExtendedPKIXBuilderParameters

use of org.bouncycastle.x509.ExtendedPKIXBuilderParameters in project robovm by robovm.

the class CertPathValidatorUtilities method findIssuerCerts.

/**
     * Find the issuer certificates of a given certificate.
     *
     * @param cert       The certificate for which an issuer should be found.
     * @param pkixParams
     * @return A <code>Collection</code> object containing the issuer
     *         <code>X509Certificate</code>s. Never <code>null</code>.
     * @throws AnnotatedException if an error occurs.
     */
protected static Collection findIssuerCerts(X509Certificate cert, ExtendedPKIXBuilderParameters pkixParams) throws AnnotatedException {
    X509CertStoreSelector certSelect = new X509CertStoreSelector();
    Set certs = new HashSet();
    try {
        certSelect.setSubject(cert.getIssuerX500Principal().getEncoded());
    } catch (IOException ex) {
        throw new AnnotatedException("Subject criteria for certificate selector to find issuer certificate could not be set.", ex);
    }
    Iterator iter;
    try {
        List matches = new ArrayList();
        matches.addAll(CertPathValidatorUtilities.findCertificates(certSelect, pkixParams.getCertStores()));
        matches.addAll(CertPathValidatorUtilities.findCertificates(certSelect, pkixParams.getStores()));
        matches.addAll(CertPathValidatorUtilities.findCertificates(certSelect, pkixParams.getAdditionalStores()));
        iter = matches.iterator();
    } catch (AnnotatedException e) {
        throw new AnnotatedException("Issuer certificate cannot be searched.", e);
    }
    X509Certificate issuer = null;
    while (iter.hasNext()) {
        issuer = (X509Certificate) iter.next();
        // issuer cannot be verified because possible DSA inheritance
        // parameters are missing
        certs.add(issuer);
    }
    return certs;
}

Example 4 with ExtendedPKIXBuilderParameters

use of org.bouncycastle.x509.ExtendedPKIXBuilderParameters in project XobotOS by xamarin.

the class CertPathValidatorUtilities method findIssuerCerts.

/**
     * Find the issuer certificates of a given certificate.
     * 
     * @param cert
     *            The certificate for which an issuer should be found.
     * @param pkixParams
     * @return A <code>Collection</code> object containing the issuer
     *         <code>X509Certificate</code>s. Never <code>null</code>.
     * 
     * @exception AnnotatedException
     *                if an error occurs.
     */
protected static Collection findIssuerCerts(X509Certificate cert, ExtendedPKIXBuilderParameters pkixParams) throws AnnotatedException {
    X509CertStoreSelector certSelect = new X509CertStoreSelector();
    Set certs = new HashSet();
    try {
        certSelect.setSubject(cert.getIssuerX500Principal().getEncoded());
    } catch (IOException ex) {
        throw new AnnotatedException("Subject criteria for certificate selector to find issuer certificate could not be set.", ex);
    }
    Iterator iter;
    try {
        List matches = new ArrayList();
        matches.addAll(CertPathValidatorUtilities.findCertificates(certSelect, pkixParams.getCertStores()));
        matches.addAll(CertPathValidatorUtilities.findCertificates(certSelect, pkixParams.getStores()));
        matches.addAll(CertPathValidatorUtilities.findCertificates(certSelect, pkixParams.getAdditionalStores()));
        iter = matches.iterator();
    } catch (AnnotatedException e) {
        throw new AnnotatedException("Issuer certificate cannot be searched.", e);
    }
    X509Certificate issuer = null;
    while (iter.hasNext()) {
        issuer = (X509Certificate) iter.next();
        // issuer cannot be verified because possible DSA inheritance
        // parameters are missing
        certs.add(issuer);
    }
    return certs;
}

Example 5 with ExtendedPKIXBuilderParameters

use of org.bouncycastle.x509.ExtendedPKIXBuilderParameters in project XobotOS by xamarin.

the class PKIXCertPathBuilderSpi method engineBuild.

/**
     * Build and validate a CertPath using the given parameter.
     * 
     * @param params PKIXBuilderParameters object containing all information to
     *            build the CertPath
     */
public CertPathBuilderResult engineBuild(CertPathParameters params) throws CertPathBuilderException, InvalidAlgorithmParameterException {
    if (!(params instanceof PKIXBuilderParameters) && !(params instanceof ExtendedPKIXBuilderParameters)) {
        throw new InvalidAlgorithmParameterException("Parameters must be an instance of " + PKIXBuilderParameters.class.getName() + " or " + ExtendedPKIXBuilderParameters.class.getName() + ".");
    }
    ExtendedPKIXBuilderParameters pkixParams = null;
    if (params instanceof ExtendedPKIXBuilderParameters) {
        pkixParams = (ExtendedPKIXBuilderParameters) params;
    } else {
        pkixParams = (ExtendedPKIXBuilderParameters) ExtendedPKIXBuilderParameters.getInstance((PKIXBuilderParameters) params);
    }
    Collection targets;
    Iterator targetIter;
    List certPathList = new ArrayList();
    X509Certificate cert;
    // search target certificates
    Selector certSelect = pkixParams.getTargetConstraints();
    if (!(certSelect instanceof X509CertStoreSelector)) {
        throw new CertPathBuilderException("TargetConstraints must be an instance of " + X509CertStoreSelector.class.getName() + " for " + this.getClass().getName() + " class.");
    }
    try {
        targets = CertPathValidatorUtilities.findCertificates((X509CertStoreSelector) certSelect, pkixParams.getStores());
        targets.addAll(CertPathValidatorUtilities.findCertificates((X509CertStoreSelector) certSelect, pkixParams.getCertStores()));
    } catch (AnnotatedException e) {
        throw new ExtCertPathBuilderException("Error finding target certificate.", e);
    }
    if (targets.isEmpty()) {
        throw new CertPathBuilderException("No certificate found matching targetContraints.");
    }
    CertPathBuilderResult result = null;
    // check all potential target certificates
    targetIter = targets.iterator();
    while (targetIter.hasNext() && result == null) {
        cert = (X509Certificate) targetIter.next();
        result = build(cert, pkixParams, certPathList);
    }
    if (result == null && certPathException != null) {
        if (certPathException instanceof AnnotatedException) {
            throw new CertPathBuilderException(certPathException.getMessage(), certPathException.getCause());
        }
        throw new CertPathBuilderException("Possible certificate chain could not be validated.", certPathException);
    }
    if (result == null && certPathException == null) {
        throw new CertPathBuilderException("Unable to find certificate chain.");
    }
    return result;
}