Examples with ASN1TaggedObject com.github.zhenwei.core.asn1.ASN1TaggedObject used on opensource projects

Example 1 with ASN1TaggedObject

use of com.github.zhenwei.core.asn1.ASN1TaggedObject in project OpenUnison by TremoloSecurity.

the class X509ExtensionParsingUtil method extractTaggedObjects.

/**
 * Returns a {@link HashMap} whose keys represent the tags and whose values represent the values
 * of a {@link DLSequence}.
 */
public static HashMap<Integer, ASN1Primitive> extractTaggedObjects(ASN1Sequence asn1Sequence) throws CertificateParsingException {
    HashMap<Integer, ASN1Primitive> taggedObjects = new HashMap<Integer, ASN1Primitive>();
    for (ASN1Encodable asn1EncodablePurpose : asn1Sequence.toArray()) {
        if (asn1EncodablePurpose == null || !(asn1EncodablePurpose instanceof ASN1TaggedObject)) {
            throw new CertificateParsingException("Expected DERTagged object");
        }
        ASN1TaggedObject asn1TaggedObject = (ASN1TaggedObject) asn1EncodablePurpose;
        taggedObjects.put(Integer.valueOf(asn1TaggedObject.getTagNo()), asn1TaggedObject.getObject());
    }
    return taggedObjects;
}

Example 2 with ASN1TaggedObject

use of com.github.zhenwei.core.asn1.ASN1TaggedObject in project OpenUnison by TremoloSecurity.

the class UpnExtractor method loadNTPrincipal.

private String loadNTPrincipal(X509Certificate[] certs) throws CertificateParsingException, IOException {
    X509Certificate cert = certs[0];
    Collection<List<?>> subjectAlternativeNames = cert.getSubjectAlternativeNames();
    if (subjectAlternativeNames != null && !subjectAlternativeNames.isEmpty()) {
        for (List<?> subjectAltName : subjectAlternativeNames) {
            if (((Integer) subjectAltName.get(0)) == GeneralName.otherName) {
                ASN1InputStream asn1Input = new ASN1InputStream((byte[]) subjectAltName.get(1));
                ASN1Primitive derObject = asn1Input.readObject();
                DLSequence seq = (DLSequence) derObject;
                ASN1ObjectIdentifier id = ASN1ObjectIdentifier.getInstance(seq.getObjectAt(0));
                if (id.getId().equals("1.3.6.1.4.1.311.20.2.3")) {
                    ASN1TaggedObject obj = (ASN1TaggedObject) seq.getObjectAt(1);
                    DERUTF8String str = null;
                    while (str == null) {
                        if (obj.getObject() instanceof DERTaggedObject) {
                            obj = (ASN1TaggedObject) obj.getObject();
                        } else if (obj.getObject() instanceof DERUTF8String) {
                            str = (DERUTF8String) obj.getObject();
                        } else {
                            asn1Input.close();
                            return null;
                        }
                    }
                    asn1Input.close();
                    return str.getString();
                }
            }
        }
    }
    return null;
}

Example 3 with ASN1TaggedObject

use of com.github.zhenwei.core.asn1.ASN1TaggedObject in project documentproduction by qld-gov-au.

the class CertificateVerifier method downloadExtraCertificates.

/**
 * Download extra certificates from the URI mentioned in id-ad-caIssuers in the "authority
 * information access" extension. The method is lenient, i.e. catches all exceptions.
 *
 * @param ext an X509 object that can have extensions.
 *
 * @return a certificate set, never null.
 * @throws ExecutionException
 */
public static Set<X509Certificate> downloadExtraCertificates(X509Extension ext) throws ExecutionException {
    // https://tools.ietf.org/html/rfc2459#section-4.2.2.1
    // https://tools.ietf.org/html/rfc3280#section-4.2.2.1
    // https://tools.ietf.org/html/rfc4325
    Set<X509Certificate> resultSet = new HashSet<X509Certificate>();
    byte[] authorityExtensionValue = ext.getExtensionValue(Extension.authorityInfoAccess.getId());
    if (authorityExtensionValue == null) {
        return resultSet;
    }
    ASN1Primitive asn1Prim;
    try {
        asn1Prim = JcaX509ExtensionUtils.parseExtensionValue(authorityExtensionValue);
    } catch (IOException ex) {
        LOG.warn(ex.getMessage(), ex);
        return resultSet;
    }
    if (!(asn1Prim instanceof ASN1Sequence)) {
        LOG.warn("ASN1Sequence expected, got " + asn1Prim.getClass().getSimpleName());
        return resultSet;
    }
    ASN1Sequence asn1Seq = (ASN1Sequence) asn1Prim;
    Enumeration<?> objects = asn1Seq.getObjects();
    while (objects.hasMoreElements()) {
        // AccessDescription
        ASN1Sequence obj = (ASN1Sequence) objects.nextElement();
        ASN1Encodable oid = obj.getObjectAt(0);
        if (!X509ObjectIdentifiers.id_ad_caIssuers.equals(oid)) {
            continue;
        }
        ASN1TaggedObject location = (ASN1TaggedObject) obj.getObjectAt(1);
        ASN1OctetString uri = (ASN1OctetString) location.getObject();
        String urlString = new String(uri.getOctets());
        LOG.info("CA issuers URL: " + urlString);
        Collection<? extends Certificate> altCerts = ISSUER_CERTS.get(urlString);
        for (Certificate altCert : altCerts) {
            resultSet.add((X509Certificate) altCert);
        }
        LOG.info("CA issuers URL: " + altCerts.size() + " certificate(s) downloaded");
    }
    LOG.info("CA issuers: Downloaded " + resultSet.size() + " certificate(s) total");
    return resultSet;
}

Example 4 with ASN1TaggedObject

use of com.github.zhenwei.core.asn1.ASN1TaggedObject in project documentproduction by qld-gov-au.

the class CertificateVerifier method extractOCSPURL.

/**
 * Extract the OCSP URL from an X.509 certificate if available.
 *
 * @param cert X.509 certificate
 * @return the URL of the OCSP validation service
 * @throws IOException
 */
private static String extractOCSPURL(X509Certificate cert) throws IOException {
    byte[] authorityExtensionValue = cert.getExtensionValue(Extension.authorityInfoAccess.getId());
    if (authorityExtensionValue != null) {
        // copied from CertInformationHelper.getAuthorityInfoExtensionValue()
        // DRY refactor should be done some day
        ASN1Sequence asn1Seq = (ASN1Sequence) JcaX509ExtensionUtils.parseExtensionValue(authorityExtensionValue);
        Enumeration<?> objects = asn1Seq.getObjects();
        while (objects.hasMoreElements()) {
            // AccessDescription
            ASN1Sequence obj = (ASN1Sequence) objects.nextElement();
            ASN1Encodable oid = obj.getObjectAt(0);
            // accessLocation
            ASN1TaggedObject location = (ASN1TaggedObject) obj.getObjectAt(1);
            if (X509ObjectIdentifiers.id_ad_ocsp.equals(oid) && location.getTagNo() == GeneralName.uniformResourceIdentifier) {
                ASN1OctetString url = (ASN1OctetString) location.getObject();
                String ocspURL = new String(url.getOctets());
                LOG.info("OCSP URL: " + ocspURL);
                return ocspURL;
            }
        }
    }
    return null;
}

Example 5 with ASN1TaggedObject

use of com.github.zhenwei.core.asn1.ASN1TaggedObject in project documentproduction by qld-gov-au.

the class CertInformationCollector method getAuthorityInfoExtensionValue.

static void getAuthorityInfoExtensionValue(byte[] extensionValue, CertSignatureInformation certInfo) throws IOException {
    ASN1Sequence asn1Seq = (ASN1Sequence) JcaX509ExtensionUtils.parseExtensionValue(extensionValue);
    Enumeration<?> objects = asn1Seq.getObjects();
    while (objects.hasMoreElements()) {
        // AccessDescription
        ASN1Sequence obj = (ASN1Sequence) objects.nextElement();
        ASN1Encodable oid = obj.getObjectAt(0);
        // accessLocation
        ASN1TaggedObject location = (ASN1TaggedObject) obj.getObjectAt(1);
        if (X509ObjectIdentifiers.id_ad_ocsp.equals(oid) && location.getTagNo() == GeneralName.uniformResourceIdentifier) {
            ASN1OctetString url = (ASN1OctetString) location.getObject();
            certInfo.setOcspUrl(new String(url.getOctets()));
        } else if (X509ObjectIdentifiers.id_ad_caIssuers.equals(oid)) {
            ASN1OctetString uri = (ASN1OctetString) location.getObject();
            certInfo.setIssuerUrl(new String(uri.getOctets()));
        }
    }
}