Examples with NoIdleSignerException org.xipki.security.exception.NoIdleSignerException used on opensource projects

Example 1 with NoIdleSignerException

use of org.xipki.security.exception.NoIdleSignerException in project xipki by xipki.

the class X509SelfSignedCertBuilder method generateCertificate.

// method generateSelfSigned
private static X509Certificate generateCertificate(ConcurrentContentSigner signer, IdentifiedX509Certprofile certprofile, CertificationRequest csr, BigInteger serialNumber, SubjectPublicKeyInfo publicKeyInfo, List<String> caCertUris, List<String> ocspUris, List<String> crlUris, List<String> deltaCrlUris, ConfPairs extraControl) throws OperationException {
    SubjectPublicKeyInfo tmpPublicKeyInfo;
    try {
        tmpPublicKeyInfo = X509Util.toRfc3279Style(publicKeyInfo);
    } catch (InvalidKeySpecException ex) {
        LOG.warn("SecurityUtil.toRfc3279Style", ex);
        throw new OperationException(ErrorCode.BAD_CERT_TEMPLATE, ex);
    }
    try {
        certprofile.checkPublicKey(tmpPublicKeyInfo);
    } catch (BadCertTemplateException ex) {
        LOG.warn("certprofile.checkPublicKey", ex);
        throw new OperationException(ErrorCode.BAD_CERT_TEMPLATE, ex);
    }
    X500Name requestedSubject = csr.getCertificationRequestInfo().getSubject();
    SubjectInfo subjectInfo;
    // subject
    try {
        subjectInfo = certprofile.getSubject(requestedSubject);
    } catch (CertprofileException ex) {
        throw new OperationException(ErrorCode.SYSTEM_FAILURE, "exception in cert profile " + certprofile.getIdent());
    } catch (BadCertTemplateException ex) {
        LOG.warn("certprofile.getSubject", ex);
        throw new OperationException(ErrorCode.BAD_CERT_TEMPLATE, ex);
    }
    Date notBefore = certprofile.getNotBefore(null);
    if (notBefore == null) {
        notBefore = new Date();
    }
    CertValidity validity = certprofile.getValidity();
    if (validity == null) {
        throw new OperationException(ErrorCode.BAD_CERT_TEMPLATE, "no validity specified in the profile " + certprofile.getIdent());
    }
    Date notAfter = validity.add(notBefore);
    X500Name grantedSubject = subjectInfo.getGrantedSubject();
    X509v3CertificateBuilder certBuilder = new X509v3CertificateBuilder(grantedSubject, serialNumber, notBefore, notAfter, grantedSubject, tmpPublicKeyInfo);
    PublicCaInfo publicCaInfo = new PublicCaInfo(grantedSubject, serialNumber, null, null, caCertUris, ocspUris, crlUris, deltaCrlUris, extraControl);
    Extensions extensions = null;
    ASN1Set attrs = csr.getCertificationRequestInfo().getAttributes();
    for (int i = 0; i < attrs.size(); i++) {
        Attribute attr = Attribute.getInstance(attrs.getObjectAt(i));
        if (PKCSObjectIdentifiers.pkcs_9_at_extensionRequest.equals(attr.getAttrType())) {
            extensions = Extensions.getInstance(attr.getAttributeValues()[0]);
        }
    }
    try {
        addExtensions(certBuilder, certprofile, requestedSubject, grantedSubject, extensions, tmpPublicKeyInfo, publicCaInfo, notBefore, notAfter);
        ConcurrentBagEntrySigner signer0 = signer.borrowSigner();
        X509CertificateHolder certHolder;
        try {
            certHolder = certBuilder.build(signer0.value());
        } finally {
            signer.requiteSigner(signer0);
        }
        Certificate bcCert = certHolder.toASN1Structure();
        return X509Util.parseCert(bcCert.getEncoded());
    } catch (BadCertTemplateException ex) {
        throw new OperationException(ErrorCode.BAD_CERT_TEMPLATE, ex);
    } catch (NoIdleSignerException | CertificateException | IOException | CertprofileException ex) {
        throw new OperationException(ErrorCode.SYSTEM_FAILURE, ex);
    }
}

Example 2 with NoIdleSignerException

use of org.xipki.security.exception.NoIdleSignerException in project xipki by xipki.

the class X509Ca method generateCertificate0.

private X509CertificateInfo generateCertificate0(GrantedCertTemplate gct, RequestorInfo requestor, boolean keyUpdate, RequestType reqType, byte[] transactionId, AuditEvent event) throws OperationException {
    ParamUtil.requireNonNull("gct", gct);
    event.addEventData(CaAuditConstants.NAME_reqSubject, X509Util.getRfc4519Name(gct.requestedSubject));
    event.addEventData(CaAuditConstants.NAME_certprofile, gct.certprofile.getIdent().getName());
    event.addEventData(CaAuditConstants.NAME_notBefore, DateUtil.toUtcTimeyyyyMMddhhmmss(gct.grantedNotBefore));
    event.addEventData(CaAuditConstants.NAME_notAfter, DateUtil.toUtcTimeyyyyMMddhhmmss(gct.grantedNotAfter));
    adaptGrantedSubejct(gct);
    IdentifiedX509Certprofile certprofile = gct.certprofile;
    boolean publicKeyCertInProcessExisted = publicKeyCertsInProcess.add(gct.fpPublicKey);
    if (!publicKeyCertInProcessExisted) {
        if (!certprofile.isDuplicateKeyPermitted()) {
            throw new OperationException(ErrorCode.ALREADY_ISSUED, "certificate with the given public key already in process");
        }
    }
    if (!subjectCertsInProcess.add(gct.fpSubject)) {
        if (!certprofile.isDuplicateSubjectPermitted()) {
            if (!publicKeyCertInProcessExisted) {
                publicKeyCertsInProcess.remove(gct.fpPublicKey);
            }
            throw new OperationException(ErrorCode.ALREADY_ISSUED, "certificate with the given subject " + gct.grantedSubjectText + " already in process");
        }
    }
    try {
        X509v3CertificateBuilder certBuilder = new X509v3CertificateBuilder(caInfo.getPublicCaInfo().getX500Subject(), caInfo.nextSerial(), gct.grantedNotBefore, gct.grantedNotAfter, gct.grantedSubject, gct.grantedPublicKey);
        X509CertificateInfo ret;
        try {
            X509CrlSignerEntryWrapper crlSigner = getCrlSigner();
            X509Certificate crlSignerCert = (crlSigner == null) ? null : crlSigner.getCert();
            ExtensionValues extensionTuples = certprofile.getExtensions(gct.requestedSubject, gct.grantedSubject, gct.extensions, gct.grantedPublicKey, caInfo.getPublicCaInfo(), crlSignerCert, gct.grantedNotBefore, gct.grantedNotAfter);
            if (extensionTuples != null) {
                for (ASN1ObjectIdentifier extensionType : extensionTuples.getExtensionTypes()) {
                    ExtensionValue extValue = extensionTuples.getExtensionValue(extensionType);
                    certBuilder.addExtension(extensionType, extValue.isCritical(), extValue.getValue());
                }
            }
            ConcurrentBagEntrySigner signer0;
            try {
                signer0 = gct.signer.borrowSigner();
            } catch (NoIdleSignerException ex) {
                throw new OperationException(ErrorCode.SYSTEM_FAILURE, ex);
            }
            X509CertificateHolder certHolder;
            try {
                certHolder = certBuilder.build(signer0.value());
            } finally {
                gct.signer.requiteSigner(signer0);
            }
            Certificate bcCert = certHolder.toASN1Structure();
            byte[] encodedCert = bcCert.getEncoded();
            int maxCertSize = gct.certprofile.getMaxCertSize();
            if (maxCertSize > 0) {
                int certSize = encodedCert.length;
                if (certSize > maxCertSize) {
                    throw new OperationException(ErrorCode.NOT_PERMITTED, String.format("certificate exceeds the maximal allowed size: %d > %d", certSize, maxCertSize));
                }
            }
            X509Certificate cert;
            try {
                cert = X509Util.toX509Cert(bcCert);
            } catch (CertificateException ex) {
                String message = "should not happen, could not parse generated certificate";
                LOG.error(message, ex);
                throw new OperationException(ErrorCode.SYSTEM_FAILURE, ex);
            }
            if (!verifySignature(cert)) {
                throw new OperationException(ErrorCode.SYSTEM_FAILURE, "could not verify the signature of generated certificate");
            }
            X509CertWithDbId certWithMeta = new X509CertWithDbId(cert, encodedCert);
            ret = new X509CertificateInfo(certWithMeta, caIdent, caCert, gct.grantedPublicKeyData, gct.certprofile.getIdent(), requestor.getIdent());
            if (requestor instanceof ByUserRequestorInfo) {
                ret.setUser((((ByUserRequestorInfo) requestor).getUserId()));
            }
            ret.setReqType(reqType);
            ret.setTransactionId(transactionId);
            ret.setRequestedSubject(gct.requestedSubject);
            if (publishCertificate0(ret) == 1) {
                throw new OperationException(ErrorCode.SYSTEM_FAILURE, "could not save certificate");
            }
        } catch (BadCertTemplateException ex) {
            throw new OperationException(ErrorCode.BAD_CERT_TEMPLATE, ex);
        } catch (OperationException ex) {
            throw ex;
        } catch (Throwable th) {
            LogUtil.error(LOG, th, "could not generate certificate");
            throw new OperationException(ErrorCode.SYSTEM_FAILURE, th);
        }
        if (gct.warning != null) {
            ret.setWarningMessage(gct.warning);
        }
        return ret;
    } finally {
        publicKeyCertsInProcess.remove(gct.fpPublicKey);
        subjectCertsInProcess.remove(gct.fpSubject);
    }
}

Example 3 with NoIdleSignerException

use of org.xipki.security.exception.NoIdleSignerException in project xipki by xipki.

the class OcspServerImpl method answer.

@Override
public OcspRespWithCacheInfo answer(Responder responder2, byte[] request, boolean viaGet) {
    ResponderImpl responder = (ResponderImpl) responder2;
    RequestOption reqOpt = responder.getRequestOption();
    int version;
    try {
        version = OcspRequest.readRequestVersion(request);
    } catch (EncodingException ex) {
        String message = "could not extract version from request";
        LOG.warn(message);
        return unsuccesfulOCSPRespMap.get(OcspResponseStatus.malformedRequest);
    }
    if (!reqOpt.isVersionAllowed(version)) {
        String message = "invalid request version " + version;
        LOG.warn(message);
        return unsuccesfulOCSPRespMap.get(OcspResponseStatus.malformedRequest);
    }
    ResponderSigner signer = responder.getSigner();
    ResponseOption repOpt = responder.getResponseOption();
    try {
        Object reqOrRrrorResp = checkSignature(request, reqOpt);
        if (reqOrRrrorResp instanceof OcspRespWithCacheInfo) {
            return (OcspRespWithCacheInfo) reqOrRrrorResp;
        }
        OcspRequest req = (OcspRequest) reqOrRrrorResp;
        List<CertID> requestList = req.getRequestList();
        int requestsSize = requestList.size();
        if (requestsSize > reqOpt.getMaxRequestListCount()) {
            String message = requestsSize + " entries in RequestList, but maximal " + reqOpt.getMaxRequestListCount() + " is allowed";
            LOG.warn(message);
            return unsuccesfulOCSPRespMap.get(OcspResponseStatus.malformedRequest);
        }
        OcspRespControl repControl = new OcspRespControl();
        repControl.canCacheInfo = true;
        List<ExtendedExtension> reqExtensions = req.getExtensions();
        List<Extension> respExtensions = new LinkedList<>();
        ExtendedExtension nonceExtn = removeExtension(reqExtensions, OID.ID_PKIX_OCSP_NONCE);
        if (nonceExtn != null) {
            if (reqOpt.getNonceOccurrence() == TripleState.FORBIDDEN) {
                LOG.warn("nonce forbidden, but is present in the request");
                return unsuccesfulOCSPRespMap.get(OcspResponseStatus.malformedRequest);
            }
            int len = nonceExtn.getExtnValueLength();
            int min = reqOpt.getNonceMinLen();
            int max = reqOpt.getNonceMaxLen();
            if (len < min || len > max) {
                LOG.warn("length of nonce {} not within [{},{}]", len, min, max);
                return unsuccesfulOCSPRespMap.get(OcspResponseStatus.malformedRequest);
            }
            repControl.canCacheInfo = false;
            respExtensions.add(nonceExtn);
        } else {
            if (reqOpt.getNonceOccurrence() == TripleState.REQUIRED) {
                LOG.warn("nonce required, but is not present in the request");
                return unsuccesfulOCSPRespMap.get(OcspResponseStatus.malformedRequest);
            }
        }
        ConcurrentContentSigner concurrentSigner = null;
        if (responder.getResponderOption().getMode() != OcspMode.RFC2560) {
            ExtendedExtension extn = removeExtension(reqExtensions, OID.ID_PKIX_OCSP_PREFSIGALGS);
            if (extn != null) {
                ASN1InputStream asn1Stream = new ASN1InputStream(extn.getExtnValueStream());
                List<AlgorithmIdentifier> prefSigAlgs;
                try {
                    ASN1Sequence seq = ASN1Sequence.getInstance(asn1Stream.readObject());
                    final int size = seq.size();
                    prefSigAlgs = new ArrayList<>(size);
                    for (int i = 0; i < size; i++) {
                        prefSigAlgs.add(AlgorithmIdentifier.getInstance(seq.getObjectAt(i)));
                    }
                } finally {
                    asn1Stream.close();
                }
                concurrentSigner = signer.getSignerForPreferredSigAlgs(prefSigAlgs);
            }
        }
        if (!reqExtensions.isEmpty()) {
            boolean flag = false;
            for (ExtendedExtension m : reqExtensions) {
                if (m.isCritical()) {
                    flag = true;
                    break;
                }
            }
            if (flag) {
                if (LOG.isWarnEnabled()) {
                    List<OID> oids = new LinkedList<>();
                    for (ExtendedExtension m : reqExtensions) {
                        if (m.isCritical()) {
                            oids.add(m.getExtnType());
                        }
                    }
                    LOG.warn("could not process critial request extensions: {}", oids);
                }
                return unsuccesfulOCSPRespMap.get(OcspResponseStatus.malformedRequest);
            }
        }
        if (concurrentSigner == null) {
            concurrentSigner = signer.getFirstSigner();
        }
        AlgorithmCode cacheDbSigAlgCode = null;
        BigInteger cacheDbSerialNumber = null;
        Integer cacheDbIssuerId = null;
        boolean canCacheDb = (requestsSize == 1) && (responseCacher != null) && (nonceExtn == null) && responseCacher.isOnService();
        if (canCacheDb) {
            // try to find the cached response
            CertID certId = requestList.get(0);
            HashAlgo reqHashAlgo = certId.getIssuer().hashAlgorithm();
            if (!reqOpt.allows(reqHashAlgo)) {
                LOG.warn("CertID.hashAlgorithm {} not allowed", reqHashAlgo != null ? reqHashAlgo : certId.getIssuer().hashAlgorithmOID());
                return unsuccesfulOCSPRespMap.get(OcspResponseStatus.malformedRequest);
            }
            cacheDbSigAlgCode = concurrentSigner.getAlgorithmCode();
            cacheDbIssuerId = responseCacher.getIssuerId(certId.getIssuer());
            cacheDbSerialNumber = certId.getSerialNumber();
            if (cacheDbIssuerId != null) {
                OcspRespWithCacheInfo cachedResp = responseCacher.getOcspResponse(cacheDbIssuerId.intValue(), cacheDbSerialNumber, cacheDbSigAlgCode);
                if (cachedResp != null) {
                    return cachedResp;
                }
            } else if (master) {
                // store the issuer certificate in cache database.
                X509Certificate issuerCert = null;
                for (OcspStore store : responder.getStores()) {
                    issuerCert = store.getIssuerCert(certId.getIssuer());
                    if (issuerCert != null) {
                        break;
                    }
                }
                if (issuerCert != null) {
                    cacheDbIssuerId = responseCacher.storeIssuer(issuerCert);
                }
            }
            if (cacheDbIssuerId == null) {
                canCacheDb = false;
            }
        }
        ResponderID responderId = signer.getResponderId(repOpt.isResponderIdByName());
        OCSPRespBuilder builder = new OCSPRespBuilder(responderId);
        for (int i = 0; i < requestsSize; i++) {
            OcspRespWithCacheInfo failureOcspResp = processCertReq(requestList.get(i), builder, responder, reqOpt, repOpt, repControl);
            if (failureOcspResp != null) {
                return failureOcspResp;
            }
        }
        if (repControl.includeExtendedRevokeExtension) {
            respExtensions.add(extension_pkix_ocsp_extendedRevoke);
        }
        if (!respExtensions.isEmpty()) {
            Extensions extns = new Extensions(respExtensions);
            builder.setResponseExtensions(extns);
        }
        TaggedCertSequence certsInResp;
        EmbedCertsMode certsMode = repOpt.getEmbedCertsMode();
        if (certsMode == EmbedCertsMode.SIGNER) {
            certsInResp = signer.getSequenceOfCert();
        } else if (certsMode == EmbedCertsMode.NONE) {
            certsInResp = null;
        } else {
            // certsMode == EmbedCertsMode.SIGNER_AND_CA
            certsInResp = signer.getSequenceOfCertChain();
        }
        byte[] encodeOcspResponse;
        try {
            encodeOcspResponse = builder.buildOCSPResponse(concurrentSigner, certsInResp, new Date());
        } catch (NoIdleSignerException ex) {
            return unsuccesfulOCSPRespMap.get(OcspResponseStatus.tryLater);
        } catch (OCSPException ex) {
            LogUtil.error(LOG, ex, "answer() basicOcspBuilder.build");
            return unsuccesfulOCSPRespMap.get(OcspResponseStatus.internalError);
        }
        // cache response in database
        if (canCacheDb && repControl.canCacheInfo) {
            // Don't cache the response with status UNKNOWN, since this may result in DDoS
            // of storage
            responseCacher.storeOcspResponse(cacheDbIssuerId.intValue(), cacheDbSerialNumber, repControl.cacheThisUpdate, repControl.cacheNextUpdate, cacheDbSigAlgCode, encodeOcspResponse);
        }
        if (viaGet && repControl.canCacheInfo) {
            ResponseCacheInfo cacheInfo = new ResponseCacheInfo(repControl.cacheThisUpdate);
            if (repControl.cacheNextUpdate != Long.MAX_VALUE) {
                cacheInfo.setNextUpdate(repControl.cacheNextUpdate);
            }
            return new OcspRespWithCacheInfo(encodeOcspResponse, cacheInfo);
        } else {
            return new OcspRespWithCacheInfo(encodeOcspResponse, null);
        }
    } catch (Throwable th) {
        LogUtil.error(LOG, th);
        return unsuccesfulOCSPRespMap.get(OcspResponseStatus.internalError);
    }
}

Example 4 with NoIdleSignerException

use of org.xipki.security.exception.NoIdleSignerException in project xipki by xipki.

the class AbstractOcspRequestor method buildRequest.

// method ask
private OCSPRequest buildRequest(X509Certificate caCert, BigInteger[] serialNumbers, byte[] nonce, RequestOptions requestOptions) throws OcspRequestorException {
    HashAlgo hashAlgo = HashAlgo.getInstance(requestOptions.getHashAlgorithmId());
    if (hashAlgo == null) {
        throw new OcspRequestorException("unknown HashAlgo " + requestOptions.getHashAlgorithmId().getId());
    }
    List<AlgorithmIdentifier> prefSigAlgs = requestOptions.getPreferredSignatureAlgorithms();
    XiOCSPReqBuilder reqBuilder = new XiOCSPReqBuilder();
    List<Extension> extensions = new LinkedList<>();
    if (nonce != null) {
        extensions.add(new Extension(OCSPObjectIdentifiers.id_pkix_ocsp_nonce, false, new DEROctetString(nonce)));
    }
    if (prefSigAlgs != null && prefSigAlgs.size() > 0) {
        ASN1EncodableVector vec = new ASN1EncodableVector();
        for (AlgorithmIdentifier algId : prefSigAlgs) {
            vec.add(new DERSequence(algId));
        }
        ASN1Sequence extnValue = new DERSequence(vec);
        Extension extn;
        try {
            extn = new Extension(ObjectIdentifiers.id_pkix_ocsp_prefSigAlgs, false, new DEROctetString(extnValue));
        } catch (IOException ex) {
            throw new OcspRequestorException(ex.getMessage(), ex);
        }
        extensions.add(extn);
    }
    if (CollectionUtil.isNonEmpty(extensions)) {
        reqBuilder.setRequestExtensions(new Extensions(extensions.toArray(new Extension[0])));
    }
    try {
        DEROctetString issuerNameHash = new DEROctetString(hashAlgo.hash(caCert.getSubjectX500Principal().getEncoded()));
        TBSCertificate tbsCert;
        try {
            tbsCert = TBSCertificate.getInstance(caCert.getTBSCertificate());
        } catch (CertificateEncodingException ex) {
            throw new OcspRequestorException(ex);
        }
        DEROctetString issuerKeyHash = new DEROctetString(hashAlgo.hash(tbsCert.getSubjectPublicKeyInfo().getPublicKeyData().getOctets()));
        for (BigInteger serialNumber : serialNumbers) {
            CertID certId = new CertID(hashAlgo.getAlgorithmIdentifier(), issuerNameHash, issuerKeyHash, new ASN1Integer(serialNumber));
            reqBuilder.addRequest(certId);
        }
        if (requestOptions.isSignRequest()) {
            synchronized (signerLock) {
                if (signer == null) {
                    if (StringUtil.isBlank(signerType)) {
                        throw new OcspRequestorException("signerType is not configured");
                    }
                    if (StringUtil.isBlank(signerConf)) {
                        throw new OcspRequestorException("signerConf is not configured");
                    }
                    X509Certificate cert = null;
                    if (StringUtil.isNotBlank(signerCertFile)) {
                        try {
                            cert = X509Util.parseCert(signerCertFile);
                        } catch (CertificateException ex) {
                            throw new OcspRequestorException("could not parse certificate " + signerCertFile + ": " + ex.getMessage());
                        }
                    }
                    try {
                        signer = getSecurityFactory().createSigner(signerType, new SignerConf(signerConf), cert);
                    } catch (Exception ex) {
                        throw new OcspRequestorException("could not create signer: " + ex.getMessage());
                    }
                }
            // end if
            }
            // end synchronized
            reqBuilder.setRequestorName(signer.getBcCertificate().getSubject());
            X509CertificateHolder[] certChain0 = signer.getBcCertificateChain();
            Certificate[] certChain = new Certificate[certChain0.length];
            for (int i = 0; i < certChain.length; i++) {
                certChain[i] = certChain0[i].toASN1Structure();
            }
            ConcurrentBagEntrySigner signer0;
            try {
                signer0 = signer.borrowSigner();
            } catch (NoIdleSignerException ex) {
                throw new OcspRequestorException("NoIdleSignerException: " + ex.getMessage());
            }
            try {
                return reqBuilder.build(signer0.value(), certChain);
            } finally {
                signer.requiteSigner(signer0);
            }
        } else {
            return reqBuilder.build();
        }
    // end if
    } catch (OCSPException | IOException ex) {
        throw new OcspRequestorException(ex.getMessage(), ex);
    }
}

Example 5 with NoIdleSignerException

use of org.xipki.security.exception.NoIdleSignerException in project xipki by xipki.

the class X509Ca method generateCrl0.

private X509CRL generateCrl0(boolean deltaCrl, Date thisUpdate, Date nextUpdate, AuditEvent event, String msgId) throws OperationException {
    X509CrlSignerEntryWrapper crlSigner = getCrlSigner();
    if (crlSigner == null) {
        throw new OperationException(ErrorCode.NOT_PERMITTED, "CRL generation is not allowed");
    }
    LOG.info("     START generateCrl: ca={}, deltaCRL={}, nextUpdate={}", caIdent, deltaCrl, nextUpdate);
    event.addEventData(CaAuditConstants.NAME_crlType, deltaCrl ? "DELTA_CRL" : "FULL_CRL");
    if (nextUpdate == null) {
        event.addEventData(CaAuditConstants.NAME_nextUpdate, "null");
    } else {
        event.addEventData(CaAuditConstants.NAME_nextUpdate, DateUtil.toUtcTimeyyyyMMddhhmmss(nextUpdate));
        if (nextUpdate.getTime() - thisUpdate.getTime() < 10 * 60 * MS_PER_SECOND) {
            // less than 10 minutes
            throw new OperationException(ErrorCode.CRL_FAILURE, "nextUpdate and thisUpdate are too close");
        }
    }
    CrlControl crlControl = crlSigner.getCrlControl();
    boolean successful = false;
    try {
        ConcurrentContentSigner tmpCrlSigner = crlSigner.getSigner();
        CrlControl control = crlSigner.getCrlControl();
        boolean directCrl;
        X500Name crlIssuer;
        if (tmpCrlSigner == null) {
            directCrl = true;
            crlIssuer = caInfo.getPublicCaInfo().getX500Subject();
        } else {
            directCrl = false;
            crlIssuer = X500Name.getInstance(tmpCrlSigner.getCertificate().getSubjectX500Principal().getEncoded());
        }
        X509v2CRLBuilder crlBuilder = new X509v2CRLBuilder(crlIssuer, thisUpdate);
        if (nextUpdate != null) {
            crlBuilder.setNextUpdate(nextUpdate);
        }
        final int numEntries = 100;
        Date notExpireAt;
        if (control.isIncludeExpiredCerts()) {
            notExpireAt = new Date(0);
        } else {
            // 10 minutes buffer
            notExpireAt = new Date(thisUpdate.getTime() - 600L * MS_PER_SECOND);
        }
        long startId = 1;
        // we have to cache the serial entries to sort them
        List<CertRevInfoWithSerial> allRevInfos = new LinkedList<>();
        List<CertRevInfoWithSerial> revInfos;
        do {
            if (deltaCrl) {
                revInfos = certstore.getCertsForDeltaCrl(caIdent, startId, numEntries, control.isOnlyContainsCaCerts(), control.isOnlyContainsUserCerts());
            } else {
                revInfos = certstore.getRevokedCerts(caIdent, notExpireAt, startId, numEntries, control.isOnlyContainsCaCerts(), control.isOnlyContainsUserCerts());
            }
            allRevInfos.addAll(revInfos);
            long maxId = 1;
            for (CertRevInfoWithSerial revInfo : revInfos) {
                if (revInfo.getId() > maxId) {
                    maxId = revInfo.getId();
                }
            }
            // end for
            startId = maxId + 1;
        } while (// end do
        revInfos.size() >= numEntries);
        if (revInfos != null) {
            // free the memory
            revInfos.clear();
        }
        // sort the list by SerialNumber ASC
        Collections.sort(allRevInfos);
        boolean isFirstCrlEntry = true;
        for (CertRevInfoWithSerial revInfo : allRevInfos) {
            CrlReason reason = revInfo.getReason();
            if (crlControl.isExcludeReason() && reason != CrlReason.REMOVE_FROM_CRL) {
                reason = CrlReason.UNSPECIFIED;
            }
            Date revocationTime = revInfo.getRevocationTime();
            Date invalidityTime = revInfo.getInvalidityTime();
            switch(crlControl.getInvalidityDateMode()) {
                case FORBIDDEN:
                    invalidityTime = null;
                    break;
                case OPTIONAL:
                    break;
                case REQUIRED:
                    if (invalidityTime == null) {
                        invalidityTime = revocationTime;
                    }
                    break;
                default:
                    throw new RuntimeException("unknown TripleState: " + crlControl.getInvalidityDateMode());
            }
            BigInteger serial = revInfo.getSerial();
            LOG.debug("added cert ca={} serial={} to CRL", caIdent, serial);
            if (directCrl || !isFirstCrlEntry) {
                if (invalidityTime != null) {
                    crlBuilder.addCRLEntry(serial, revocationTime, reason.getCode(), invalidityTime);
                } else {
                    crlBuilder.addCRLEntry(serial, revocationTime, reason.getCode());
                }
                continue;
            }
            List<Extension> extensions = new ArrayList<>(3);
            if (reason != CrlReason.UNSPECIFIED) {
                Extension ext = createReasonExtension(reason.getCode());
                extensions.add(ext);
            }
            if (invalidityTime != null) {
                Extension ext = createInvalidityDateExtension(invalidityTime);
                extensions.add(ext);
            }
            Extension ext = createCertificateIssuerExtension(caInfo.getPublicCaInfo().getX500Subject());
            extensions.add(ext);
            crlBuilder.addCRLEntry(serial, revocationTime, new Extensions(extensions.toArray(new Extension[0])));
            isFirstCrlEntry = false;
        }
        // free the memory
        allRevInfos.clear();
        BigInteger crlNumber = caInfo.nextCrlNumber();
        event.addEventData(CaAuditConstants.NAME_crlNumber, crlNumber);
        boolean onlyUserCerts = crlControl.isOnlyContainsUserCerts();
        boolean onlyCaCerts = crlControl.isOnlyContainsCaCerts();
        if (onlyUserCerts && onlyCaCerts) {
            throw new RuntimeException("should not reach here, onlyUserCerts and onlyCACerts are both true");
        }
        try {
            // AuthorityKeyIdentifier
            byte[] akiValues = directCrl ? caInfo.getPublicCaInfo().getSubjectKeyIdentifer() : crlSigner.getSubjectKeyIdentifier();
            AuthorityKeyIdentifier aki = new AuthorityKeyIdentifier(akiValues);
            crlBuilder.addExtension(Extension.authorityKeyIdentifier, false, aki);
            // add extension CRL Number
            crlBuilder.addExtension(Extension.cRLNumber, false, new ASN1Integer(crlNumber));
            // IssuingDistributionPoint
            if (onlyUserCerts || onlyCaCerts || !directCrl) {
                IssuingDistributionPoint idp = new IssuingDistributionPoint(// distributionPoint,
                (DistributionPointName) null, // onlyContainsUserCerts,
                onlyUserCerts, // onlyContainsCACerts,
                onlyCaCerts, // onlySomeReasons,
                (ReasonFlags) null, // indirectCRL,
                !directCrl, // onlyContainsAttributeCerts
                false);
                crlBuilder.addExtension(Extension.issuingDistributionPoint, true, idp);
            }
            // freshestCRL
            List<String> deltaCrlUris = getCaInfo().getPublicCaInfo().getDeltaCrlUris();
            if (control.getDeltaCrlIntervals() > 0 && CollectionUtil.isNonEmpty(deltaCrlUris)) {
                CRLDistPoint cdp = CaUtil.createCrlDistributionPoints(deltaCrlUris, caInfo.getPublicCaInfo().getX500Subject(), crlIssuer);
                crlBuilder.addExtension(Extension.freshestCRL, false, cdp);
            }
        } catch (CertIOException ex) {
            LogUtil.error(LOG, ex, "crlBuilder.addExtension");
            throw new OperationException(ErrorCode.INVALID_EXTENSION, ex);
        }
        addXipkiCertset(crlBuilder, deltaCrl, control, notExpireAt, onlyCaCerts, onlyUserCerts);
        ConcurrentContentSigner concurrentSigner = (tmpCrlSigner == null) ? caInfo.getSigner(null) : tmpCrlSigner;
        ConcurrentBagEntrySigner signer0;
        try {
            signer0 = concurrentSigner.borrowSigner();
        } catch (NoIdleSignerException ex) {
            throw new OperationException(ErrorCode.SYSTEM_FAILURE, "NoIdleSignerException: " + ex.getMessage());
        }
        X509CRLHolder crlHolder;
        try {
            crlHolder = crlBuilder.build(signer0.value());
        } finally {
            concurrentSigner.requiteSigner(signer0);
        }
        try {
            X509CRL crl = X509Util.toX509Crl(crlHolder.toASN1Structure());
            caInfo.getCaEntry().setNextCrlNumber(crlNumber.longValue() + 1);
            caManager.commitNextCrlNo(caIdent, caInfo.getCaEntry().getNextCrlNumber());
            publishCrl(crl);
            successful = true;
            LOG.info("SUCCESSFUL generateCrl: ca={}, crlNumber={}, thisUpdate={}", caIdent, crlNumber, crl.getThisUpdate());
            if (!deltaCrl) {
                // clean up the CRL
                cleanupCrlsWithoutException(msgId);
            }
            return crl;
        } catch (CRLException | CertificateException ex) {
            throw new OperationException(ErrorCode.CRL_FAILURE, ex);
        }
    } finally {
        if (!successful) {
            LOG.info("    FAILED generateCrl: ca={}", caIdent);
        }
    }
}