org.bouncycastle.asn1.ocsp.BasicOCSPResponse.java Source code

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Here is the source code for org.bouncycastle.asn1.ocsp.BasicOCSPResponse.java

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package org.bouncycastle.asn1.ocsp;

import org.bouncycastle.asn1.ASN1EncodableVector;
import org.bouncycastle.asn1.ASN1Object;
import org.bouncycastle.asn1.ASN1Primitive;
import org.bouncycastle.asn1.ASN1Sequence;
import org.bouncycastle.asn1.ASN1TaggedObject;
import org.bouncycastle.asn1.DERBitString;
import org.bouncycastle.asn1.DERSequence;
import org.bouncycastle.asn1.DERTaggedObject;
import org.bouncycastle.asn1.x509.AlgorithmIdentifier;

/**
 * OCSP RFC 2560, RFC 6960
 * <pre>
 * BasicOCSPResponse       ::= SEQUENCE {
 *    tbsResponseData      ResponseData,
 *    signatureAlgorithm   AlgorithmIdentifier,
 *    signature            BIT STRING,
 *    certs                [0] EXPLICIT SEQUENCE OF Certificate OPTIONAL }
 * </pre>
 */
public class BasicOCSPResponse extends ASN1Object {
    private ResponseData tbsResponseData;
    private AlgorithmIdentifier signatureAlgorithm;
    private DERBitString signature;
    private ASN1Sequence certs;

    public BasicOCSPResponse(ResponseData tbsResponseData, AlgorithmIdentifier signatureAlgorithm,
            DERBitString signature, ASN1Sequence certs) {
        this.tbsResponseData = tbsResponseData;
        this.signatureAlgorithm = signatureAlgorithm;
        this.signature = signature;
        this.certs = certs;
    }

    private BasicOCSPResponse(ASN1Sequence seq) {
        this.tbsResponseData = ResponseData.getInstance(seq.getObjectAt(0));
        this.signatureAlgorithm = AlgorithmIdentifier.getInstance(seq.getObjectAt(1));
        this.signature = (DERBitString) seq.getObjectAt(2);

        if (seq.size() > 3) {
            this.certs = ASN1Sequence.getInstance((ASN1TaggedObject) seq.getObjectAt(3), true);
        }
    }

    public static BasicOCSPResponse getInstance(ASN1TaggedObject obj, boolean explicit) {
        return getInstance(ASN1Sequence.getInstance(obj, explicit));
    }

    public static BasicOCSPResponse getInstance(Object obj) {
        if (obj instanceof BasicOCSPResponse) {
            return (BasicOCSPResponse) obj;
        } else if (obj != null) {
            return new BasicOCSPResponse(ASN1Sequence.getInstance(obj));
        }

        return null;
    }

    public ResponseData getTbsResponseData() {
        return tbsResponseData;
    }

    public AlgorithmIdentifier getSignatureAlgorithm() {
        return signatureAlgorithm;
    }

    public DERBitString getSignature() {
        return signature;
    }

    public ASN1Sequence getCerts() {
        return certs;
    }

    /**
     * Produce an object suitable for an ASN1OutputStream.
     * <pre>
     * BasicOCSPResponse       ::= SEQUENCE {
     *      tbsResponseData      ResponseData,
     *      signatureAlgorithm   AlgorithmIdentifier,
     *      signature            BIT STRING,
     *      certs                [0] EXPLICIT SEQUENCE OF Certificate OPTIONAL }
     * </pre>
     */
    public ASN1Primitive toASN1Primitive() {
        ASN1EncodableVector v = new ASN1EncodableVector(4);

        v.add(tbsResponseData);
        v.add(signatureAlgorithm);
        v.add(signature);
        if (certs != null) {
            v.add(new DERTaggedObject(true, 0, certs));
        }

        return new DERSequence(v);
    }
}