Examples with RevokedStatus org.bouncycastle.cert.ocsp.RevokedStatus used on opensource projects

Example 1 with RevokedStatus

use of org.bouncycastle.cert.ocsp.RevokedStatus in project poi by apache.

the class PkiTestUtils method createOcspResp.

public static OCSPResp createOcspResp(X509Certificate certificate, boolean revoked, X509Certificate issuerCertificate, X509Certificate ocspResponderCertificate, PrivateKey ocspResponderPrivateKey, String signatureAlgorithm, long nonceTimeinMillis) throws Exception {
    DigestCalculator digestCalc = new JcaDigestCalculatorProviderBuilder().setProvider("BC").build().get(CertificateID.HASH_SHA1);
    X509CertificateHolder issuerHolder = new X509CertificateHolder(issuerCertificate.getEncoded());
    CertificateID certId = new CertificateID(digestCalc, issuerHolder, certificate.getSerialNumber());
    // request
    //create a nonce to avoid replay attack
    BigInteger nonce = BigInteger.valueOf(nonceTimeinMillis);
    DEROctetString nonceDer = new DEROctetString(nonce.toByteArray());
    Extension ext = new Extension(OCSPObjectIdentifiers.id_pkix_ocsp_nonce, true, nonceDer);
    Extensions exts = new Extensions(ext);
    OCSPReqBuilder ocspReqBuilder = new OCSPReqBuilder();
    ocspReqBuilder.addRequest(certId);
    ocspReqBuilder.setRequestExtensions(exts);
    OCSPReq ocspReq = ocspReqBuilder.build();
    SubjectPublicKeyInfo keyInfo = new SubjectPublicKeyInfo(CertificateID.HASH_SHA1, ocspResponderCertificate.getPublicKey().getEncoded());
    BasicOCSPRespBuilder basicOCSPRespBuilder = new BasicOCSPRespBuilder(keyInfo, digestCalc);
    basicOCSPRespBuilder.setResponseExtensions(exts);
    // request processing
    Req[] requestList = ocspReq.getRequestList();
    for (Req ocspRequest : requestList) {
        CertificateID certificateID = ocspRequest.getCertID();
        CertificateStatus certificateStatus = CertificateStatus.GOOD;
        if (revoked) {
            certificateStatus = new RevokedStatus(new Date(), CRLReason.privilegeWithdrawn);
        }
        basicOCSPRespBuilder.addResponse(certificateID, certificateStatus);
    }
    // basic response generation
    X509CertificateHolder[] chain = null;
    if (!ocspResponderCertificate.equals(issuerCertificate)) {
        // TODO: HorribleProxy can't convert array input params yet
        chain = new X509CertificateHolder[] { new X509CertificateHolder(ocspResponderCertificate.getEncoded()), issuerHolder };
    }
    ContentSigner contentSigner = new JcaContentSignerBuilder("SHA1withRSA").setProvider("BC").build(ocspResponderPrivateKey);
    BasicOCSPResp basicOCSPResp = basicOCSPRespBuilder.build(contentSigner, chain, new Date(nonceTimeinMillis));
    OCSPRespBuilder ocspRespBuilder = new OCSPRespBuilder();
    OCSPResp ocspResp = ocspRespBuilder.build(OCSPRespBuilder.SUCCESSFUL, basicOCSPResp);
    return ocspResp;
}

Example 2 with RevokedStatus

use of org.bouncycastle.cert.ocsp.RevokedStatus in project xipki by xipki.

the class OcspQa method checkSingleCert.

// method checkOcsp
private List<ValidationIssue> checkSingleCert(int index, SingleResp singleResp, IssuerHash issuerHash, OcspCertStatus expectedStatus, byte[] encodedCert, Date expectedRevTime, boolean extendedRevoke, Occurrence nextupdateOccurrence, Occurrence certhashOccurrence, ASN1ObjectIdentifier certhashAlg) {
    if (expectedStatus == OcspCertStatus.unknown || expectedStatus == OcspCertStatus.issuerUnknown) {
        certhashOccurrence = Occurrence.forbidden;
    }
    List<ValidationIssue> issues = new LinkedList<>();
    // issuer hash
    ValidationIssue issue = new ValidationIssue("OCSP.RESPONSE." + index + ".ISSUER", "certificate issuer");
    issues.add(issue);
    CertificateID certId = singleResp.getCertID();
    HashAlgo hashAlgo = HashAlgo.getInstance(certId.getHashAlgOID());
    if (hashAlgo == null) {
        issue.setFailureMessage("unknown hash algorithm " + certId.getHashAlgOID().getId());
    } else {
        if (!issuerHash.match(hashAlgo, certId.getIssuerNameHash(), certId.getIssuerKeyHash())) {
            issue.setFailureMessage("issuer not match");
        }
    }
    // status
    issue = new ValidationIssue("OCSP.RESPONSE." + index + ".STATUS", "certificate status");
    issues.add(issue);
    CertificateStatus singleCertStatus = singleResp.getCertStatus();
    OcspCertStatus status = null;
    Long revTimeSec = null;
    if (singleCertStatus == null) {
        status = OcspCertStatus.good;
    } else if (singleCertStatus instanceof RevokedStatus) {
        RevokedStatus revStatus = (RevokedStatus) singleCertStatus;
        revTimeSec = revStatus.getRevocationTime().getTime() / 1000;
        if (revStatus.hasRevocationReason()) {
            int reason = revStatus.getRevocationReason();
            if (extendedRevoke && reason == CrlReason.CERTIFICATE_HOLD.getCode() && revTimeSec == 0) {
                status = OcspCertStatus.unknown;
                revTimeSec = null;
            } else {
                CrlReason revocationReason = CrlReason.forReasonCode(reason);
                switch(revocationReason) {
                    case UNSPECIFIED:
                        status = OcspCertStatus.unspecified;
                        break;
                    case KEY_COMPROMISE:
                        status = OcspCertStatus.keyCompromise;
                        break;
                    case CA_COMPROMISE:
                        status = OcspCertStatus.cACompromise;
                        break;
                    case AFFILIATION_CHANGED:
                        status = OcspCertStatus.affiliationChanged;
                        break;
                    case SUPERSEDED:
                        status = OcspCertStatus.superseded;
                        break;
                    case CERTIFICATE_HOLD:
                        status = OcspCertStatus.certificateHold;
                        break;
                    case REMOVE_FROM_CRL:
                        status = OcspCertStatus.removeFromCRL;
                        break;
                    case PRIVILEGE_WITHDRAWN:
                        status = OcspCertStatus.privilegeWithdrawn;
                        break;
                    case AA_COMPROMISE:
                        status = OcspCertStatus.aACompromise;
                        break;
                    case CESSATION_OF_OPERATION:
                        status = OcspCertStatus.cessationOfOperation;
                        break;
                    default:
                        issue.setFailureMessage("should not reach here, unknown CRLReason " + revocationReason);
                        break;
                }
            }
        // end if
        } else {
            status = OcspCertStatus.rev_noreason;
        }
    // end if (revStatus.hasRevocationReason())
    } else if (singleCertStatus instanceof UnknownStatus) {
        status = extendedRevoke ? OcspCertStatus.issuerUnknown : OcspCertStatus.unknown;
    } else {
        issue.setFailureMessage("unknown certstatus: " + singleCertStatus.getClass().getName());
    }
    if (!issue.isFailed() && expectedStatus != status) {
        issue.setFailureMessage("is='" + status + "', but expected='" + expectedStatus + "'");
    }
    // revocation time
    issue = new ValidationIssue("OCSP.RESPONSE." + index + ".REVTIME", "certificate time");
    issues.add(issue);
    if (expectedRevTime != null) {
        if (revTimeSec == null) {
            issue.setFailureMessage("is='null', but expected='" + formatTime(expectedRevTime) + "'");
        } else if (revTimeSec != expectedRevTime.getTime() / 1000) {
            issue.setFailureMessage("is='" + formatTime(new Date(revTimeSec * 1000)) + "', but expected='" + formatTime(expectedRevTime) + "'");
        }
    }
    // nextUpdate
    Date nextUpdate = singleResp.getNextUpdate();
    issue = checkOccurrence("OCSP.RESPONSE." + index + ".NEXTUPDATE", nextUpdate, nextupdateOccurrence);
    issues.add(issue);
    Extension extension = singleResp.getExtension(ISISMTTObjectIdentifiers.id_isismtt_at_certHash);
    issue = checkOccurrence("OCSP.RESPONSE." + index + ".CERTHASH", extension, certhashOccurrence);
    issues.add(issue);
    if (extension != null) {
        ASN1Encodable extensionValue = extension.getParsedValue();
        CertHash certHash = CertHash.getInstance(extensionValue);
        ASN1ObjectIdentifier hashAlgOid = certHash.getHashAlgorithm().getAlgorithm();
        if (certhashAlg != null) {
            // certHash algorithm
            issue = new ValidationIssue("OCSP.RESPONSE." + index + ".CHASH.ALG", "certhash algorithm");
            issues.add(issue);
            ASN1ObjectIdentifier is = certHash.getHashAlgorithm().getAlgorithm();
            if (!certhashAlg.equals(is)) {
                issue.setFailureMessage("is '" + is.getId() + "', but expected '" + certhashAlg.getId() + "'");
            }
        }
        byte[] hashValue = certHash.getCertificateHash();
        if (encodedCert != null) {
            issue = new ValidationIssue("OCSP.RESPONSE." + index + ".CHASH.VALIDITY", "certhash validity");
            issues.add(issue);
            try {
                MessageDigest md = MessageDigest.getInstance(hashAlgOid.getId());
                byte[] expectedHashValue = md.digest(encodedCert);
                if (!Arrays.equals(expectedHashValue, hashValue)) {
                    issue.setFailureMessage("certhash does not match the requested certificate");
                }
            } catch (NoSuchAlgorithmException ex) {
                issue.setFailureMessage("NoSuchAlgorithm " + hashAlgOid.getId());
            }
        }
    // end if(encodedCert != null)
    }
    return issues;
}

Example 3 with RevokedStatus

use of org.bouncycastle.cert.ocsp.RevokedStatus in project xipki by xipki.

the class OcspStatusCmd method processResponse.

@Override
protected Object processResponse(OCSPResp response, X509Certificate respIssuer, IssuerHash issuerHash, List<BigInteger> serialNumbers, Map<BigInteger, byte[]> encodedCerts) throws Exception {
    ParamUtil.requireNonNull("response", response);
    ParamUtil.requireNonNull("issuerHash", issuerHash);
    ParamUtil.requireNonNull("serialNumbers", serialNumbers);
    BasicOCSPResp basicResp = OcspUtils.extractBasicOcspResp(response);
    boolean extendedRevoke = basicResp.getExtension(ObjectIdentifiers.id_pkix_ocsp_extendedRevoke) != null;
    SingleResp[] singleResponses = basicResp.getResponses();
    if (singleResponses == null || singleResponses.length == 0) {
        throw new CmdFailure("received no status from server");
    }
    final int n = singleResponses.length;
    if (n != serialNumbers.size()) {
        throw new CmdFailure("received status with " + n + " single responses from server, but " + serialNumbers.size() + " were requested");
    }
    Date[] thisUpdates = new Date[n];
    for (int i = 0; i < n; i++) {
        thisUpdates[i] = singleResponses[i].getThisUpdate();
    }
    // check the signature if available
    if (null == basicResp.getSignature()) {
        println("response is not signed");
    } else {
        X509CertificateHolder[] responderCerts = basicResp.getCerts();
        if (responderCerts == null || responderCerts.length < 1) {
            throw new CmdFailure("no responder certificate is contained in the response");
        }
        ResponderID respId = basicResp.getResponderId().toASN1Primitive();
        X500Name respIdByName = respId.getName();
        byte[] respIdByKey = respId.getKeyHash();
        X509CertificateHolder respSigner = null;
        for (X509CertificateHolder cert : responderCerts) {
            if (respIdByName != null) {
                if (cert.getSubject().equals(respIdByName)) {
                    respSigner = cert;
                }
            } else {
                byte[] spkiSha1 = HashAlgo.SHA1.hash(cert.getSubjectPublicKeyInfo().getPublicKeyData().getBytes());
                if (Arrays.equals(respIdByKey, spkiSha1)) {
                    respSigner = cert;
                }
            }
            if (respSigner != null) {
                break;
            }
        }
        if (respSigner == null) {
            throw new CmdFailure("no responder certificate match the ResponderId");
        }
        boolean validOn = true;
        for (Date thisUpdate : thisUpdates) {
            validOn = respSigner.isValidOn(thisUpdate);
            if (!validOn) {
                throw new CmdFailure("responder certificate is not valid on " + thisUpdate);
            }
        }
        if (validOn) {
            PublicKey responderPubKey = KeyUtil.generatePublicKey(respSigner.getSubjectPublicKeyInfo());
            ContentVerifierProvider cvp = securityFactory.getContentVerifierProvider(responderPubKey);
            boolean sigValid = basicResp.isSignatureValid(cvp);
            if (!sigValid) {
                throw new CmdFailure("response is equipped with invalid signature");
            }
            // verify the OCSPResponse signer
            if (respIssuer != null) {
                boolean certValid = true;
                X509Certificate jceRespSigner = X509Util.toX509Cert(respSigner.toASN1Structure());
                if (X509Util.issues(respIssuer, jceRespSigner)) {
                    try {
                        jceRespSigner.verify(respIssuer.getPublicKey());
                    } catch (SignatureException ex) {
                        certValid = false;
                    }
                }
                if (!certValid) {
                    throw new CmdFailure("response is equipped with valid signature but the" + " OCSP signer is not trusted");
                }
            } else {
                println("response is equipped with valid signature");
            }
        // end if(respIssuer)
        }
        if (verbose.booleanValue()) {
            println("responder is " + X509Util.getRfc4519Name(responderCerts[0].getSubject()));
        }
    }
    for (int i = 0; i < n; i++) {
        if (n > 1) {
            println("---------------------------- " + i + "----------------------------");
        }
        SingleResp singleResp = singleResponses[i];
        CertificateStatus singleCertStatus = singleResp.getCertStatus();
        String status;
        if (singleCertStatus == null) {
            status = "good";
        } else if (singleCertStatus instanceof RevokedStatus) {
            RevokedStatus revStatus = (RevokedStatus) singleCertStatus;
            Date revTime = revStatus.getRevocationTime();
            Date invTime = null;
            Extension ext = singleResp.getExtension(Extension.invalidityDate);
            if (ext != null) {
                invTime = ASN1GeneralizedTime.getInstance(ext.getParsedValue()).getDate();
            }
            if (revStatus.hasRevocationReason()) {
                int reason = revStatus.getRevocationReason();
                if (extendedRevoke && reason == CrlReason.CERTIFICATE_HOLD.getCode() && revTime.getTime() == 0) {
                    status = "unknown (RFC6960)";
                } else {
                    status = StringUtil.concatObjects("revoked, reason = ", CrlReason.forReasonCode(reason).getDescription(), ", revocationTime = ", revTime, (invTime == null ? "" : ", invalidityTime = " + invTime));
                }
            } else {
                status = "revoked, no reason, revocationTime = " + revTime;
            }
        } else if (singleCertStatus instanceof UnknownStatus) {
            status = "unknown (RFC2560)";
        } else {
            status = "ERROR";
        }
        StringBuilder msg = new StringBuilder();
        CertificateID certId = singleResp.getCertID();
        HashAlgo hashAlgo = HashAlgo.getNonNullInstance(certId.getHashAlgOID());
        boolean issuerMatch = issuerHash.match(hashAlgo, certId.getIssuerNameHash(), certId.getIssuerKeyHash());
        BigInteger serialNumber = certId.getSerialNumber();
        msg.append("issuer matched: ").append(issuerMatch);
        msg.append("\nserialNumber: ").append(LogUtil.formatCsn(serialNumber));
        msg.append("\nCertificate status: ").append(status);
        if (verbose.booleanValue()) {
            msg.append("\nthisUpdate: ").append(singleResp.getThisUpdate());
            msg.append("\nnextUpdate: ").append(singleResp.getNextUpdate());
            Extension extension = singleResp.getExtension(ISISMTTObjectIdentifiers.id_isismtt_at_certHash);
            if (extension != null) {
                msg.append("\nCertHash is provided:\n");
                ASN1Encodable extensionValue = extension.getParsedValue();
                CertHash certHash = CertHash.getInstance(extensionValue);
                ASN1ObjectIdentifier hashAlgOid = certHash.getHashAlgorithm().getAlgorithm();
                byte[] hashValue = certHash.getCertificateHash();
                msg.append("\tHash algo : ").append(hashAlgOid.getId()).append("\n");
                msg.append("\tHash value: ").append(Hex.encode(hashValue)).append("\n");
                if (encodedCerts != null) {
                    byte[] encodedCert = encodedCerts.get(serialNumber);
                    MessageDigest md = MessageDigest.getInstance(hashAlgOid.getId());
                    byte[] expectedHashValue = md.digest(encodedCert);
                    if (Arrays.equals(expectedHashValue, hashValue)) {
                        msg.append("\tThis matches the requested certificate");
                    } else {
                        msg.append("\tThis differs from the requested certificate");
                    }
                }
            }
            // end if (extension != null)
            extension = singleResp.getExtension(OCSPObjectIdentifiers.id_pkix_ocsp_archive_cutoff);
            if (extension != null) {
                ASN1Encodable extensionValue = extension.getParsedValue();
                ASN1GeneralizedTime time = ASN1GeneralizedTime.getInstance(extensionValue);
                msg.append("\nArchive-CutOff: ");
                msg.append(time.getTimeString());
            }
            AlgorithmIdentifier sigAlg = basicResp.getSignatureAlgorithmID();
            if (sigAlg == null) {
                msg.append(("\nresponse is not signed"));
            } else {
                String sigAlgName = AlgorithmUtil.getSignatureAlgoName(sigAlg);
                if (sigAlgName == null) {
                    sigAlgName = "unknown";
                }
                msg.append("\nresponse is signed with ").append(sigAlgName);
            }
            // extensions
            msg.append("\nExtensions: ");
            List<?> extensionOids = basicResp.getExtensionOIDs();
            if (extensionOids == null || extensionOids.size() == 0) {
                msg.append("-");
            } else {
                int size = extensionOids.size();
                for (int j = 0; j < size; j++) {
                    ASN1ObjectIdentifier extensionOid = (ASN1ObjectIdentifier) extensionOids.get(j);
                    String name = EXTENSION_OIDNAME_MAP.get(extensionOid);
                    if (name == null) {
                        msg.append(extensionOid.getId());
                    } else {
                        msg.append(name);
                    }
                    if (j != size - 1) {
                        msg.append(", ");
                    }
                }
            }
        }
        // end if (verbose.booleanValue())
        println(msg.toString());
    }
    // end for
    println("");
    return null;
}

Example 4 with RevokedStatus

use of org.bouncycastle.cert.ocsp.RevokedStatus in project oxAuth by GluuFederation.

the class OCSPCertificateVerifier method validate.

@Override
public ValidationStatus validate(X509Certificate certificate, List<X509Certificate> issuers, Date validationDate) {
    X509Certificate issuer = issuers.get(0);
    ValidationStatus status = new ValidationStatus(certificate, issuer, validationDate, ValidatorSourceType.OCSP, CertificateValidity.UNKNOWN);
    try {
        Principal subjectX500Principal = certificate.getSubjectX500Principal();
        String ocspUrl = getOCSPUrl(certificate);
        if (ocspUrl == null) {
            log.error("OCSP URL for '" + subjectX500Principal + "' is empty");
            return status;
        }
        log.debug("OCSP URL for '" + subjectX500Principal + "' is '" + ocspUrl + "'");
        DigestCalculator digestCalculator = new JcaDigestCalculatorProviderBuilder().build().get(CertificateID.HASH_SHA1);
        CertificateID certificateId = new CertificateID(digestCalculator, new JcaX509CertificateHolder(certificate), certificate.getSerialNumber());
        // Generate OCSP request
        OCSPReq ocspReq = generateOCSPRequest(certificateId);
        // Get OCSP response from server
        OCSPResp ocspResp = requestOCSPResponse(ocspUrl, ocspReq);
        if (ocspResp.getStatus() != OCSPRespBuilder.SUCCESSFUL) {
            log.error("OCSP response is invalid!");
            status.setValidity(CertificateValidity.INVALID);
            return status;
        }
        boolean foundResponse = false;
        BasicOCSPResp basicOCSPResp = (BasicOCSPResp) ocspResp.getResponseObject();
        SingleResp[] singleResps = basicOCSPResp.getResponses();
        for (SingleResp singleResp : singleResps) {
            CertificateID responseCertificateId = singleResp.getCertID();
            if (!certificateId.equals(responseCertificateId)) {
                continue;
            }
            foundResponse = true;
            log.debug("OCSP validationDate: " + validationDate);
            log.debug("OCSP thisUpdate: " + singleResp.getThisUpdate());
            log.debug("OCSP nextUpdate: " + singleResp.getNextUpdate());
            status.setRevocationObjectIssuingTime(basicOCSPResp.getProducedAt());
            Object certStatus = singleResp.getCertStatus();
            if (certStatus == CertificateStatus.GOOD) {
                log.debug("OCSP status is valid for '" + certificate.getSubjectX500Principal() + "'");
                status.setValidity(CertificateValidity.VALID);
            } else {
                if (singleResp.getCertStatus() instanceof RevokedStatus) {
                    log.warn("OCSP status is revoked for: " + subjectX500Principal);
                    if (validationDate.before(((RevokedStatus) singleResp.getCertStatus()).getRevocationTime())) {
                        log.warn("OCSP revocation time after the validation date, the certificate '" + subjectX500Principal + "' was valid at " + validationDate);
                        status.setValidity(CertificateValidity.VALID);
                    } else {
                        Date revocationDate = ((RevokedStatus) singleResp.getCertStatus()).getRevocationTime();
                        log.info("OCSP for certificate '" + subjectX500Principal + "' is revoked since " + revocationDate);
                        status.setRevocationDate(revocationDate);
                        status.setRevocationObjectIssuingTime(singleResp.getThisUpdate());
                        status.setValidity(CertificateValidity.REVOKED);
                    }
                }
            }
        }
        if (!foundResponse) {
            log.error("There is no matching OCSP response entries");
        }
    } catch (Exception ex) {
        log.error("OCSP exception: ", ex);
    }
    return status;
}

Example 5 with RevokedStatus

use of org.bouncycastle.cert.ocsp.RevokedStatus in project oxAuth by GluuFederation.

the class OCSPCertificateVerifier method validate.

@Override
public ValidationStatus validate(X509Certificate certificate, List<X509Certificate> issuers, Date validationDate) {
    X509Certificate issuer = issuers.get(0);
    ValidationStatus status = new ValidationStatus(certificate, issuer, validationDate, ValidatorSourceType.OCSP, CertificateValidity.UNKNOWN);
    try {
        Principal subjectX500Principal = certificate.getSubjectX500Principal();
        String ocspUrl = getOCSPUrl(certificate);
        if (ocspUrl == null) {
            log.error("OCSP URL for '" + subjectX500Principal + "' is empty");
            return status;
        }
        log.debug("OCSP URL for '" + subjectX500Principal + "' is '" + ocspUrl + "'");
        DigestCalculator digestCalculator = new JcaDigestCalculatorProviderBuilder().build().get(CertificateID.HASH_SHA1);
        CertificateID certificateId = new CertificateID(digestCalculator, new JcaX509CertificateHolder(certificate), certificate.getSerialNumber());
        // Generate OCSP request
        OCSPReq ocspReq = generateOCSPRequest(certificateId);
        // Get OCSP response from server
        OCSPResp ocspResp = requestOCSPResponse(ocspUrl, ocspReq);
        if (ocspResp.getStatus() != OCSPRespBuilder.SUCCESSFUL) {
            log.error("OCSP response is invalid!");
            status.setValidity(CertificateValidity.INVALID);
            return status;
        }
        boolean foundResponse = false;
        BasicOCSPResp basicOCSPResp = (BasicOCSPResp) ocspResp.getResponseObject();
        SingleResp[] singleResps = basicOCSPResp.getResponses();
        for (SingleResp singleResp : singleResps) {
            CertificateID responseCertificateId = singleResp.getCertID();
            if (!certificateId.equals(responseCertificateId)) {
                continue;
            }
            foundResponse = true;
            log.debug("OCSP validationDate: " + validationDate);
            log.debug("OCSP thisUpdate: " + singleResp.getThisUpdate());
            log.debug("OCSP nextUpdate: " + singleResp.getNextUpdate());
            status.setRevocationObjectIssuingTime(basicOCSPResp.getProducedAt());
            Object certStatus = singleResp.getCertStatus();
            if (certStatus == CertificateStatus.GOOD) {
                log.debug("OCSP status is valid for '" + certificate.getSubjectX500Principal() + "'");
                status.setValidity(CertificateValidity.VALID);
            } else {
                if (singleResp.getCertStatus() instanceof RevokedStatus) {
                    log.warn("OCSP status is revoked for: " + subjectX500Principal);
                    if (validationDate.before(((RevokedStatus) singleResp.getCertStatus()).getRevocationTime())) {
                        log.warn("OCSP revocation time after the validation date, the certificate '" + subjectX500Principal + "' was valid at " + validationDate);
                        status.setValidity(CertificateValidity.VALID);
                    } else {
                        Date revocationDate = ((RevokedStatus) singleResp.getCertStatus()).getRevocationTime();
                        log.info("OCSP for certificate '" + subjectX500Principal + "' is revoked since " + revocationDate);
                        status.setRevocationDate(revocationDate);
                        status.setRevocationObjectIssuingTime(singleResp.getThisUpdate());
                        status.setValidity(CertificateValidity.REVOKED);
                    }
                }
            }
        }
        if (!foundResponse) {
            log.error("There is no matching OCSP response entries");
        }
    } catch (Exception ex) {
        log.error("OCSP exception: ", ex);
    }
    return status;
}