Example usage for org.bouncycastle.asn1.x509 Attribute Attribute

Introduction

In this page you can find the example usage for org.bouncycastle.asn1.x509 Attribute Attribute.

Prototype

private Attribute(ASN1Sequence seq) 

Source Link

Usage

From source file:org.glite.slcs.pki.bouncycastle.PKCS10.java

License:eu-egee.org license

/**
 * Gets the X509Extensions included in the PKCS10.
 * //from  w  w w . ja  v  a2s .  c o m
 * @return The X509Extensions or <code>null</code> if there is no
 *         X509Extensions.
 */
public X509Extensions getX509Extensions() {
    X509Extensions x509Extensions = null;
    ASN1Set attributes = this.bcPKCS10_.getCertificationRequestInfo().getAttributes();
    if (attributes.size() > 0) {
        ASN1Sequence attributeSequence = (ASN1Sequence) attributes.getObjectAt(0);
        Attribute attribute = new Attribute(attributeSequence);
        DERObjectIdentifier oid = attribute.getAttrType();
        if (oid.equals(PKCSObjectIdentifiers.pkcs_9_at_extensionRequest)) {
            ASN1Set attributeValues = attribute.getAttrValues();
            if (attributeValues.size() > 0) {
                ASN1Sequence x509extensionsSequence = (ASN1Sequence) attributeValues.getObjectAt(0);
                x509Extensions = new X509Extensions(x509extensionsSequence);

            }
        }
    }
    return x509Extensions;
}

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From source file:org.qipki.crypto.x509.X509ExtensionsReaderImpl.java

License:Open Source License

@Override
public List<X509ExtensionHolder> extractRequestedExtensions(PKCS10CertificationRequest pkcs10) {
    final List<X509ExtensionHolder> extractedExtensions = new ArrayList<X509ExtensionHolder>();
    final CertificationRequestInfo certificationRequestInfo = pkcs10.getCertificationRequestInfo();
    final ASN1Set attributesAsn1Set = certificationRequestInfo.getAttributes();
    if (attributesAsn1Set == null) {
        return extractedExtensions;
    }/*from   www.j a v  a 2s .c  om*/
    // The `Extension Request` attribute is contained within an ASN.1 Set,
    // usually as the first element.
    X509Extensions requestedExtensions = null;
    for (int i = 0; i < attributesAsn1Set.size(); ++i) {
        // There should be only only one attribute in the set. (that is, only
        // the `Extension Request`, but loop through to find it properly)
        final DEREncodable derEncodable = attributesAsn1Set.getObjectAt(i);
        if (derEncodable instanceof DERSequence) {
            final Attribute attribute = new Attribute((DERSequence) attributesAsn1Set.getObjectAt(i));

            if (attribute.getAttrType().equals(PKCSObjectIdentifiers.pkcs_9_at_extensionRequest)) {
                // The `Extension Request` attribute is present.
                final ASN1Set attributeValues = attribute.getAttrValues();

                // The X509Extensions are contained as a value of the ASN.1 Set.
                // WARN Assuming that it is the first value of the set.
                if (attributeValues.size() >= 1) {
                    DEREncodable extensionsDEREncodable = attributeValues.getObjectAt(0);
                    ASN1Sequence extensionsASN1Sequence = (ASN1Sequence) extensionsDEREncodable;
                    requestedExtensions = new X509Extensions(extensionsASN1Sequence);
                    // No need to search any more.
                    break;
                }
            }
        }
    }
    if (requestedExtensions != null) {
        Enumeration<?> e = requestedExtensions.oids();
        while (e.hasMoreElements()) {
            DERObjectIdentifier oid = (DERObjectIdentifier) e.nextElement();
            X509Extension extension = requestedExtensions.getExtension(oid);
            extractedExtensions.add(new X509ExtensionHolder(oid, extension.isCritical(),
                    X509Extension.convertValueToObject(extension)));
        }
    }
    return extractedExtensions;
}

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