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The Bouncy Castle Java APIs for CMS, PKCS, EAC, TSP, CMP, CRMF, OCSP, and certificate generation. This jar contains APIs for JDK 1.5 to JDK 1.8. The APIs can be used in conjunction with a JCE/JCA provider such as the one provided with the Bouncy Castle Cryptography APIs.
package org.bouncycastle.cert.ocsp;
import java.io.OutputStream;
import java.util.ArrayList;
import java.util.Date;
import java.util.Iterator;
import java.util.List;
import org.bouncycastle.asn1.ASN1EncodableVector;
import org.bouncycastle.asn1.ASN1Encoding;
import org.bouncycastle.asn1.ASN1GeneralizedTime;
import org.bouncycastle.asn1.DERBitString;
import org.bouncycastle.asn1.DERGeneralizedTime;
import org.bouncycastle.asn1.DERNull;
import org.bouncycastle.asn1.DERSequence;
import org.bouncycastle.asn1.ocsp.BasicOCSPResponse;
import org.bouncycastle.asn1.ocsp.CertStatus;
import org.bouncycastle.asn1.ocsp.ResponseData;
import org.bouncycastle.asn1.ocsp.RevokedInfo;
import org.bouncycastle.asn1.ocsp.SingleResponse;
import org.bouncycastle.asn1.x509.AlgorithmIdentifier;
import org.bouncycastle.asn1.x509.CRLReason;
import org.bouncycastle.asn1.x509.Extensions;
import org.bouncycastle.asn1.x509.SubjectPublicKeyInfo;
import org.bouncycastle.cert.X509CertificateHolder;
import org.bouncycastle.operator.ContentSigner;
import org.bouncycastle.operator.DigestCalculator;
/**
* Generator for basic OCSP response objects.
*/
public class BasicOCSPRespBuilder
{
private List list = new ArrayList();
private Extensions responseExtensions = null;
private RespID responderID;
private static class ResponseObject
{
CertificateID certId;
CertStatus certStatus;
ASN1GeneralizedTime thisUpdate;
ASN1GeneralizedTime nextUpdate;
Extensions extensions;
public ResponseObject(
CertificateID certId,
CertificateStatus certStatus,
Date thisUpdate,
Date nextUpdate,
Extensions extensions)
{
this.certId = certId;
if (certStatus == null)
{
this.certStatus = new CertStatus();
}
else if (certStatus instanceof UnknownStatus)
{
this.certStatus = new CertStatus(2, DERNull.INSTANCE);
}
else
{
RevokedStatus rs = (RevokedStatus)certStatus;
if (rs.hasRevocationReason())
{
this.certStatus = new CertStatus(
new RevokedInfo(new ASN1GeneralizedTime(rs.getRevocationTime()), CRLReason.lookup(rs.getRevocationReason())));
}
else
{
this.certStatus = new CertStatus(
new RevokedInfo(new ASN1GeneralizedTime(rs.getRevocationTime()), null));
}
}
this.thisUpdate = new DERGeneralizedTime(thisUpdate);
if (nextUpdate != null)
{
this.nextUpdate = new DERGeneralizedTime(nextUpdate);
}
else
{
this.nextUpdate = null;
}
this.extensions = extensions;
}
public SingleResponse toResponse()
throws Exception
{
return new SingleResponse(certId.toASN1Primitive(), certStatus, thisUpdate, nextUpdate, extensions);
}
}
/**
* basic constructor
*/
public BasicOCSPRespBuilder(
RespID responderID)
{
this.responderID = responderID;
}
/**
* construct with the responderID to be the SHA-1 keyHash of the passed in public key.
*
* @param key the key info of the responder public key.
* @param digCalc a SHA-1 digest calculator
*/
public BasicOCSPRespBuilder(
SubjectPublicKeyInfo key,
DigestCalculator digCalc)
throws OCSPException
{
this.responderID = new RespID(key, digCalc);
}
/**
* Add a response for a particular Certificate ID.
*
* @param certID certificate ID details
* @param certStatus status of the certificate - null if okay
*/
public BasicOCSPRespBuilder addResponse(
CertificateID certID,
CertificateStatus certStatus)
{
this.addResponse(certID, certStatus, new Date(), null, null);
return this;
}
/**
* Add a response for a particular Certificate ID.
*
* @param certID certificate ID details
* @param certStatus status of the certificate - null if okay
* @param singleExtensions optional extensions
*/
public BasicOCSPRespBuilder addResponse(
CertificateID certID,
CertificateStatus certStatus,
Extensions singleExtensions)
{
this.addResponse(certID, certStatus, new Date(), null, singleExtensions);
return this;
}
/**
* Add a response for a particular Certificate ID.
*
* @param certID certificate ID details
* @param nextUpdate date when next update should be requested
* @param certStatus status of the certificate - null if okay
* @param singleExtensions optional extensions
*/
public BasicOCSPRespBuilder addResponse(
CertificateID certID,
CertificateStatus certStatus,
Date nextUpdate,
Extensions singleExtensions)
{
this.addResponse(certID, certStatus, new Date(), nextUpdate, singleExtensions);
return this;
}
/**
* Add a response for a particular Certificate ID.
*
* @param certID certificate ID details
* @param thisUpdate date this response was valid on
* @param nextUpdate date when next update should be requested
* @param certStatus status of the certificate - null if okay
*/
public BasicOCSPRespBuilder addResponse(
CertificateID certID,
CertificateStatus certStatus,
Date thisUpdate,
Date nextUpdate)
{
this.addResponse(certID, certStatus, thisUpdate, nextUpdate, null);
return this;
}
/**
* Add a response for a particular Certificate ID.
*
* @param certID certificate ID details
* @param thisUpdate date this response was valid on
* @param nextUpdate date when next update should be requested
* @param certStatus status of the certificate - null if okay
* @param singleExtensions optional extensions
*/
public BasicOCSPRespBuilder addResponse(
CertificateID certID,
CertificateStatus certStatus,
Date thisUpdate,
Date nextUpdate,
Extensions singleExtensions)
{
list.add(new ResponseObject(certID, certStatus, thisUpdate, nextUpdate, singleExtensions));
return this;
}
/**
* Set the extensions for the response.
*
* @param responseExtensions the extension object to carry.
*/
public BasicOCSPRespBuilder setResponseExtensions(
Extensions responseExtensions)
{
this.responseExtensions = responseExtensions;
return this;
}
public BasicOCSPResp build(
ContentSigner signer,
X509CertificateHolder[] chain,
Date producedAt)
throws OCSPException
{
Iterator it = list.iterator();
ASN1EncodableVector responses = new ASN1EncodableVector();
while (it.hasNext())
{
try
{
responses.add(((ResponseObject)it.next()).toResponse());
}
catch (Exception e)
{
throw new OCSPException("exception creating Request", e);
}
}
ResponseData tbsResp = new ResponseData(responderID.toASN1Primitive(), new ASN1GeneralizedTime(producedAt), new DERSequence(responses), responseExtensions);
DERBitString bitSig;
try
{
OutputStream sigOut = signer.getOutputStream();
sigOut.write(tbsResp.getEncoded(ASN1Encoding.DER));
sigOut.close();
bitSig = new DERBitString(signer.getSignature());
}
catch (Exception e)
{
throw new OCSPException("exception processing TBSRequest: " + e.getMessage(), e);
}
AlgorithmIdentifier sigAlgId = signer.getAlgorithmIdentifier();
DERSequence chainSeq = null;
if (chain != null && chain.length > 0)
{
ASN1EncodableVector v = new ASN1EncodableVector();
for (int i = 0; i != chain.length; i++)
{
v.add(chain[i].toASN1Structure());
}
chainSeq = new DERSequence(v);
}
return new BasicOCSPResp(new BasicOCSPResponse(tbsResp, sigAlgId, bitSig, chainSeq));
}
}