Java Code Examples for org.bouncycastle.cert.ocsp.OCSPResp#getResponseObject()

private BigInteger getEmbeddedNonceValue(final OCSPResp ocspResp) {
	try {
		BasicOCSPResp basicOCSPResp = (BasicOCSPResp)ocspResp.getResponseObject();
		
		Extension extension = basicOCSPResp.getExtension(OCSPObjectIdentifiers.id_pkix_ocsp_nonce);
		ASN1OctetString extnValue = extension.getExtnValue();
		ASN1Primitive value;
		try {
			value = ASN1Primitive.fromByteArray(extnValue.getOctets());
		} catch (IOException ex) {
			throw new OCSPException("Invalid encoding of nonce extension value in OCSP response", ex);
		}
		if (value instanceof DEROctetString) {
			return new BigInteger(((DEROctetString) value).getOctets());
		}
		throw new OCSPException("Nonce extension value in OCSP response is not an OCTET STRING");
	} catch (Exception e) {
		throw new DSSException(String.format("Unable to extract the nonce from the OCSPResponse! Reason : [%s]", e.getMessage()), e);
	}
}
 

@Override
protected OCSPToken buildRevocationTokenFromResult(ResultSet rs, CertificateToken certificateToken, CertificateToken issuerCert) {
	try {
		final byte[] data = rs.getBytes(SQL_FIND_QUERY_DATA);
		final String url = rs.getString(SQL_FIND_QUERY_LOC);
		
		final OCSPResp ocspResp = new OCSPResp(data);
		BasicOCSPResp basicResponse = (BasicOCSPResp) ocspResp.getResponseObject();
		SingleResp latestSingleResponse = DSSRevocationUtils.getLatestSingleResponse(basicResponse, certificateToken, issuerCert);
		OCSPToken ocspToken = new OCSPToken(basicResponse, latestSingleResponse, certificateToken, issuerCert);
		ocspToken.setSourceURL(url);
		ocspToken.setExternalOrigin(RevocationOrigin.CACHED);
		return ocspToken;
	} catch (SQLException | IOException | OCSPException e) {
		throw new RevocationException("An error occurred during an attempt to obtain a revocation token");
	}
}
 

private void collectOCSPArchivalValues(AttributeTable attributes) {
	final ASN1Encodable attValue = DSSASN1Utils.getAsn1Encodable(attributes, OID.adbe_revocationInfoArchival);
	if (attValue !=null) {	
		RevocationInfoArchival revocationArchival = PAdESUtils.getRevocationInfoArchivals(attValue);
		if (revocationArchival != null) {
			for (final OCSPResponse ocspResponse : revocationArchival.getOcspVals()) {
				final OCSPResp ocspResp = new OCSPResp(ocspResponse);
				try {
					BasicOCSPResp basicOCSPResponse = (BasicOCSPResp) ocspResp.getResponseObject();
					addBinary(OCSPResponseBinary.build(basicOCSPResponse), RevocationOrigin.ADBE_REVOCATION_INFO_ARCHIVAL);
				} catch (OCSPException e) {
					LOG.warn("Error while extracting OCSPResponse from Revocation Info Archivals (ADBE) : {}", e.getMessage());
				}					
			}
		}
	}
}
 

public static Map<Long, BasicOCSPResp> getOCSPsFromArray(PdfDict dict, String dictionaryName, String arrayName) {
	Map<Long, BasicOCSPResp> ocspMap = new HashMap<>();
	PdfArray ocspArray = dict.getAsArray(arrayName);
	if (ocspArray != null) {
		LOG.debug("There are {} OCSPs in the '{}' dictionary", ocspArray.size(), dictionaryName);
		for (int ii = 0; ii < ocspArray.size(); ii++) {
			try {
				final long objectNumber = ocspArray.getObjectNumber(ii);
				if (!ocspMap.containsKey(objectNumber)) {
					final OCSPResp ocspResp = new OCSPResp(ocspArray.getBytes(ii));
					final BasicOCSPResp responseObject = (BasicOCSPResp) ocspResp.getResponseObject();
					ocspMap.put(objectNumber, responseObject);
				}
			} catch (Exception e) {
				LOG.debug("Unable to read OCSP '{}' from the '{}' dictionary : {}", ii, dictionaryName, e.getMessage(), e);
			}
		}
	} else {
		LOG.debug("No OCSPs found in the '{}' dictionary", dictionaryName);
	}
	return ocspMap;
}
 

@Override
protected boolean verify(ChannelHandlerContext ctx, ReferenceCountedOpenSslEngine engine) throws Exception {
    byte[] staple = engine.getOcspResponse();
    if (staple == null) {
        throw new IllegalStateException("Server didn't provide an OCSP staple!");
    }

    OCSPResp response = new OCSPResp(staple);
    if (response.getStatus() != OCSPResponseStatus.SUCCESSFUL) {
        return false;
    }

    SSLSession session = engine.getSession();
    X509Certificate[] chain = session.getPeerCertificateChain();
    BigInteger certSerial = chain[0].getSerialNumber();

    BasicOCSPResp basicResponse = (BasicOCSPResp) response.getResponseObject();
    SingleResp first = basicResponse.getResponses()[0];

    // ATTENTION: CertificateStatus.GOOD is actually a null value! Do not use
    // equals() or you'll NPE!
    CertificateStatus status = first.getCertStatus();
    BigInteger ocspSerial = first.getCertID().getSerialNumber();
    String message = new StringBuilder()
        .append("OCSP status of ").append(ctx.channel().remoteAddress())
        .append("\n  Status: ").append(status == CertificateStatus.GOOD ? "Good" : status)
        .append("\n  This Update: ").append(first.getThisUpdate())
        .append("\n  Next Update: ").append(first.getNextUpdate())
        .append("\n  Cert Serial: ").append(certSerial)
        .append("\n  OCSP Serial: ").append(ocspSerial)
        .toString();
    System.out.println(message);

    return status == CertificateStatus.GOOD && certSerial.equals(ocspSerial);
}
 

/**
 * This method adds the OCSP basic ocspResponses to the general list.
 *
 * @param inputStream
 */
private void load(final InputStream inputStream) {
	try (InputStream is = inputStream) {
		final OCSPResp ocspResp = new OCSPResp(is);
		final BasicOCSPResp basicOCSPResp = (BasicOCSPResp) ocspResp.getResponseObject();
		addBinary(OCSPResponseBinary.build(basicOCSPResp), RevocationOrigin.EXTERNAL);
	} catch (Exception e) {
		throw new DSSException(e);
	}
}
 

@Nonnull
public static ETriState evalOCSPResponse (@Nonnull final OCSPResp aOCSPResponse) throws OCSPException
{
  final EOCSPResponseStatus eStatus = EOCSPResponseStatus.getFromValueOrNull (aOCSPResponse.getStatus ());
  if (eStatus == null)
    throw new OCSPException ("Unsupported status code " + aOCSPResponse.getStatus () + " received!");
  if (eStatus.isFailure ())
    throw new OCSPException ("Non-success status code " + aOCSPResponse.getStatus () + " received!");

  final Object aResponseObject = aOCSPResponse.getResponseObject ();
  if (aResponseObject instanceof BasicOCSPResp)
  {
    final BasicOCSPResp aBasicResponse = (BasicOCSPResp) aResponseObject;
    final SingleResp [] aResponses = aBasicResponse.getResponses ();
    // Assume we queried only one
    if (aResponses.length == 1)
    {
      final SingleResp aResponse = aResponses[0];
      final CertificateStatus aStatus = aResponse.getCertStatus ();
      if (aStatus == CertificateStatus.GOOD)
        return ETriState.TRUE;
      if (aStatus instanceof RevokedStatus)
        return ETriState.FALSE;
      // else status is unknown
    }
  }
  return ETriState.UNDEFINED;
}
 

public static void main(String[] args) throws Exception {
    // We assume there's a private key.
    PrivateKey privateKey = null;

    // Step 1: Load the certificate chain for netty.io. We'll need the certificate
    // and the issuer's certificate and we don't need any of the intermediate certs.
    // The array is assumed to be a certain order to keep things simple.
    X509Certificate[] keyCertChain = parseCertificates(OcspServerExample.class, "netty_io_chain.pem");

    X509Certificate certificate = keyCertChain[0];
    X509Certificate issuer = keyCertChain[keyCertChain.length - 1];

    // Step 2: We need the URL of the CA's OCSP responder server. It's somewhere encoded
    // into the certificate! Notice that it's a HTTP URL.
    URI uri = OcspUtils.ocspUri(certificate);
    System.out.println("OCSP Responder URI: " + uri);

    if (uri == null) {
        throw new IllegalStateException("The CA/certificate doesn't have an OCSP responder");
    }

    // Step 3: Construct the OCSP request
    OCSPReq request = new OcspRequestBuilder()
            .certificate(certificate)
            .issuer(issuer)
            .build();

    // Step 4: Do the request to the CA's OCSP responder
    OCSPResp response = OcspUtils.request(uri, request, 5L, TimeUnit.SECONDS);
    if (response.getStatus() != OCSPResponseStatus.SUCCESSFUL) {
        throw new IllegalStateException("response-status=" + response.getStatus());
    }

    // Step 5: Is my certificate any good or has the CA revoked it?
    BasicOCSPResp basicResponse = (BasicOCSPResp) response.getResponseObject();
    SingleResp first = basicResponse.getResponses()[0];

    CertificateStatus status = first.getCertStatus();
    System.out.println("Status: " + (status == CertificateStatus.GOOD ? "Good" : status));
    System.out.println("This Update: " + first.getThisUpdate());
    System.out.println("Next Update: " + first.getNextUpdate());

    if (status != null) {
        throw new IllegalStateException("certificate-status=" + status);
    }

    BigInteger certSerial = certificate.getSerialNumber();
    BigInteger ocspSerial = first.getCertID().getSerialNumber();
    if (!certSerial.equals(ocspSerial)) {
        throw new IllegalStateException("Bad Serials=" + certSerial + " vs. " + ocspSerial);
    }

    // Step 6: Cache the OCSP response and use it as long as it's not
    // expired. The exact semantics are beyond the scope of this example.

    if (!OpenSsl.isAvailable()) {
        throw new IllegalStateException("OpenSSL is not available!");
    }

    if (!OpenSsl.isOcspSupported()) {
        throw new IllegalStateException("OCSP is not supported!");
    }

    if (privateKey == null) {
        throw new IllegalStateException("Because we don't have a PrivateKey we can't continue past this point.");
    }

    ReferenceCountedOpenSslContext context
        = (ReferenceCountedOpenSslContext) SslContextBuilder.forServer(privateKey, keyCertChain)
            .sslProvider(SslProvider.OPENSSL)
            .enableOcsp(true)
            .build();

    try {
        ServerBootstrap bootstrap = new ServerBootstrap()
                .childHandler(newServerHandler(context, response));

        // so on and so forth...
    } finally {
        context.release();
    }
}
 

/**
 * @return 	a byte array
 * @see com.lowagie.text.pdf.OcspClient#getEncoded()
 */
public byte[] getEncoded() {
    try {
        OCSPReq request = generateOCSPRequest(rootCert, checkCert.getSerialNumber());
        byte[] array = request.getEncoded();
        URL urlt = new URL(url);
        HttpURLConnection con = (HttpURLConnection)urlt.openConnection();
        con.setRequestProperty("Content-Type", "application/ocsp-request");
        con.setRequestProperty("Accept", "application/ocsp-response");
        con.setDoOutput(true);
        OutputStream out = con.getOutputStream();
        DataOutputStream dataOut = new DataOutputStream(new BufferedOutputStream(out));
        dataOut.write(array);
        dataOut.flush();
        dataOut.close();
        if (con.getResponseCode() / 100 != 2) {
            throw new IOException("Invalid HTTP response");
        }
        //Get Response
        InputStream in = (InputStream) con.getContent();
        OCSPResp ocspResponse = new OCSPResp(in);

        if (ocspResponse.getStatus() != 0)
            throw new IOException("Invalid status: " + ocspResponse.getStatus());
        BasicOCSPResp basicResponse = (BasicOCSPResp) ocspResponse.getResponseObject();
        if (basicResponse != null) {
            SingleResp[] responses = basicResponse.getResponses();
            if (responses.length == 1) {
                SingleResp resp = responses[0];
                Object status = resp.getCertStatus();
                if (status == CertificateStatus.GOOD) {
                    return basicResponse.getEncoded();
                }
                else if (status instanceof org.bouncycastle.cert.ocsp.RevokedStatus) {
                    throw new IOException("OCSP Status is revoked!");
                }
                else {
                    throw new IOException("OCSP Status is unknown!");
                }
            }
        }
    }
    catch (Exception ex) {
        throw new ExceptionConverter(ex);
    }
    return null;
}
 

@Override
public OCSPToken getRevocationToken(CertificateToken certificateToken, CertificateToken issuerCertificateToken,
		List<String> alternativeUrls) {
	Objects.requireNonNull(dataLoader, "DataLoader is not provided !");

	final String dssIdAsString = certificateToken.getDSSIdAsString();
	LOG.trace("--> OnlineOCSPSource queried for {}", dssIdAsString);
	if (Utils.isCollectionNotEmpty(alternativeUrls)) {
		LOG.info("OCSP alternative urls : {}", alternativeUrls);
	}

	final List<String> ocspAccessLocations = DSSASN1Utils.getOCSPAccessLocations(certificateToken);
	if (Utils.isCollectionEmpty(ocspAccessLocations) && Utils.isCollectionEmpty(alternativeUrls)) {
		LOG.warn("No OCSP location found for {}", dssIdAsString);
		return null;
	}
	ocspAccessLocations.addAll(alternativeUrls);

	final CertificateID certId = DSSRevocationUtils.getOCSPCertificateID(certificateToken, issuerCertificateToken, certIDDigestAlgorithm);

	BigInteger nonce = null;
	if (nonceSource != null) {
		nonce = nonceSource.getNonce();
	}

	final byte[] content = buildOCSPRequest(certId, nonce);

	int nbTries = ocspAccessLocations.size();
	for (String ocspAccessLocation : ocspAccessLocations) {
		nbTries--;
		try {
			final byte[] ocspRespBytes = dataLoader.post(ocspAccessLocation, content);
			if (!Utils.isArrayEmpty(ocspRespBytes)) {
				final OCSPResp ocspResp = new OCSPResp(ocspRespBytes);
				verifyNonce(ocspResp, nonce);
				OCSPRespStatus status = OCSPRespStatus.fromInt(ocspResp.getStatus());
				if (OCSPRespStatus.SUCCESSFUL.equals(status)) {
					BasicOCSPResp basicResponse = (BasicOCSPResp) ocspResp.getResponseObject();
					SingleResp latestSingleResponse = DSSRevocationUtils.getLatestSingleResponse(basicResponse, certificateToken, issuerCertificateToken);
					OCSPToken ocspToken = new OCSPToken(basicResponse, latestSingleResponse, certificateToken, issuerCertificateToken);
					ocspToken.setSourceURL(ocspAccessLocation);
					ocspToken.setExternalOrigin(RevocationOrigin.EXTERNAL);
					return ocspToken;
				} else {
					LOG.warn("Ignored OCSP Response from URL '{}' : status -> {}", ocspAccessLocation, status);
				}
			} else {
				LOG.warn("OCSP Data Loader for certificate {} responded with an empty byte array!", certificateToken.getDSSIdAsString());
			}
		} catch (Exception e) {
			if (nbTries == 0) {
				throw new DSSException("Unable to retrieve OCSP response", e);
			} else {
				LOG.warn("Unable to retrieve OCSP response with URL '{}' : {}", ocspAccessLocation, e.getMessage());
			}
		}
	}

	return null;
}
 

@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;
}