org.bouncycastle.asn1.x509.AttributeCertificate.java Source code

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Here is the source code for org.bouncycastle.asn1.x509.AttributeCertificate.java

Source

package org.bouncycastle.asn1.x509;

import org.bouncycastle.asn1.ASN1EncodableVector;
import org.bouncycastle.asn1.ASN1Object;
import org.bouncycastle.asn1.ASN1Primitive;
import org.bouncycastle.asn1.ASN1Sequence;
import org.bouncycastle.asn1.DERBitString;
import org.bouncycastle.asn1.DERSequence;

public class AttributeCertificate extends ASN1Object {
    AttributeCertificateInfo acinfo;
    AlgorithmIdentifier signatureAlgorithm;
    DERBitString signatureValue;

    /**
     * @param obj
     * @return an AttributeCertificate object
     */
    public static AttributeCertificate getInstance(Object obj) {
        if (obj instanceof AttributeCertificate) {
            return (AttributeCertificate) obj;
        } else if (obj != null) {
            return new AttributeCertificate(ASN1Sequence.getInstance(obj));
        }

        return null;
    }

    public AttributeCertificate(AttributeCertificateInfo acinfo, AlgorithmIdentifier signatureAlgorithm,
            DERBitString signatureValue) {
        this.acinfo = acinfo;
        this.signatureAlgorithm = signatureAlgorithm;
        this.signatureValue = signatureValue;
    }

    /**
     * @deprecated use getInstance() method.
     */
    public AttributeCertificate(ASN1Sequence seq) {
        if (seq.size() != 3) {
            throw new IllegalArgumentException("Bad sequence size: " + seq.size());
        }

        this.acinfo = AttributeCertificateInfo.getInstance(seq.getObjectAt(0));
        this.signatureAlgorithm = AlgorithmIdentifier.getInstance(seq.getObjectAt(1));
        this.signatureValue = DERBitString.getInstance(seq.getObjectAt(2));
    }

    public AttributeCertificateInfo getAcinfo() {
        return acinfo;
    }

    public AlgorithmIdentifier getSignatureAlgorithm() {
        return signatureAlgorithm;
    }

    public DERBitString getSignatureValue() {
        return signatureValue;
    }

    /**
     * Produce an object suitable for an ASN1OutputStream.
     * <pre>
     *  AttributeCertificate ::= SEQUENCE {
     *       acinfo               AttributeCertificateInfo,
     *       signatureAlgorithm   AlgorithmIdentifier,
     *       signatureValue       BIT STRING
     *  }
     * </pre>
     */
    public ASN1Primitive toASN1Primitive() {
        ASN1EncodableVector v = new ASN1EncodableVector(3);

        v.add(acinfo);
        v.add(signatureAlgorithm);
        v.add(signatureValue);

        return new DERSequence(v);
    }
}