Examples with TimeStampRequest org.bouncycastle.tsp.TimeStampRequest used on opensource projects

Example 1 with TimeStampRequest

use of org.bouncycastle.tsp.TimeStampRequest in project poi by apache.

the class TSPTimeStampService method timeStamp.

@SuppressWarnings("unchecked")
public byte[] timeStamp(byte[] data, RevocationData revocationData) throws Exception {
    // digest the message
    MessageDigest messageDigest = CryptoFunctions.getMessageDigest(signatureConfig.getTspDigestAlgo());
    byte[] digest = messageDigest.digest(data);
    // generate the TSP request
    BigInteger nonce = new BigInteger(128, new SecureRandom());
    TimeStampRequestGenerator requestGenerator = new TimeStampRequestGenerator();
    requestGenerator.setCertReq(true);
    String requestPolicy = signatureConfig.getTspRequestPolicy();
    if (requestPolicy != null) {
        requestGenerator.setReqPolicy(new ASN1ObjectIdentifier(requestPolicy));
    }
    ASN1ObjectIdentifier digestAlgoOid = mapDigestAlgoToOID(signatureConfig.getTspDigestAlgo());
    TimeStampRequest request = requestGenerator.generate(digestAlgoOid, digest, nonce);
    byte[] encodedRequest = request.getEncoded();
    // create the HTTP POST request
    Proxy proxy = Proxy.NO_PROXY;
    if (signatureConfig.getProxyUrl() != null) {
        URL proxyUrl = new URL(signatureConfig.getProxyUrl());
        String host = proxyUrl.getHost();
        int port = proxyUrl.getPort();
        proxy = new Proxy(Proxy.Type.HTTP, new InetSocketAddress(InetAddress.getByName(host), (port == -1 ? 80 : port)));
    }
    HttpURLConnection huc = (HttpURLConnection) new URL(signatureConfig.getTspUrl()).openConnection(proxy);
    if (signatureConfig.getTspUser() != null) {
        String userPassword = signatureConfig.getTspUser() + ":" + signatureConfig.getTspPass();
        String encoding = DatatypeConverter.printBase64Binary(userPassword.getBytes(Charset.forName("iso-8859-1")));
        huc.setRequestProperty("Authorization", "Basic " + encoding);
    }
    huc.setRequestMethod("POST");
    huc.setConnectTimeout(20000);
    huc.setReadTimeout(20000);
    // also sets method to POST.
    huc.setDoOutput(true);
    huc.setRequestProperty("User-Agent", signatureConfig.getUserAgent());
    huc.setRequestProperty("Content-Type", signatureConfig.isTspOldProtocol() ? "application/timestamp-request" : // "; charset=ISO-8859-1");
    "application/timestamp-query");
    OutputStream hucOut = huc.getOutputStream();
    hucOut.write(encodedRequest);
    // invoke TSP service
    huc.connect();
    int statusCode = huc.getResponseCode();
    if (statusCode != 200) {
        LOG.log(POILogger.ERROR, "Error contacting TSP server ", signatureConfig.getTspUrl() + ", had status code " + statusCode + "/" + huc.getResponseMessage());
        throw new IOException("Error contacting TSP server " + signatureConfig.getTspUrl() + ", had status code " + statusCode + "/" + huc.getResponseMessage());
    }
    // HTTP input validation
    String contentType = huc.getHeaderField("Content-Type");
    if (null == contentType) {
        throw new RuntimeException("missing Content-Type header");
    }
    ByteArrayOutputStream bos = new ByteArrayOutputStream();
    IOUtils.copy(huc.getInputStream(), bos);
    LOG.log(POILogger.DEBUG, "response content: ", HexDump.dump(bos.toByteArray(), 0, 0));
    if (!contentType.startsWith(signatureConfig.isTspOldProtocol() ? "application/timestamp-response" : "application/timestamp-reply")) {
        throw new RuntimeException("invalid Content-Type: " + contentType + // dump the first few bytes
        ": " + HexDump.dump(bos.toByteArray(), 0, 0, 200));
    }
    if (bos.size() == 0) {
        throw new RuntimeException("Content-Length is zero");
    }
    // TSP response parsing and validation
    TimeStampResponse timeStampResponse = new TimeStampResponse(bos.toByteArray());
    timeStampResponse.validate(request);
    if (0 != timeStampResponse.getStatus()) {
        LOG.log(POILogger.DEBUG, "status: " + timeStampResponse.getStatus());
        LOG.log(POILogger.DEBUG, "status string: " + timeStampResponse.getStatusString());
        PKIFailureInfo failInfo = timeStampResponse.getFailInfo();
        if (null != failInfo) {
            LOG.log(POILogger.DEBUG, "fail info int value: " + failInfo.intValue());
            if (/*PKIFailureInfo.unacceptedPolicy*/
            (1 << 8) == failInfo.intValue()) {
                LOG.log(POILogger.DEBUG, "unaccepted policy");
            }
        }
        throw new RuntimeException("timestamp response status != 0: " + timeStampResponse.getStatus());
    }
    TimeStampToken timeStampToken = timeStampResponse.getTimeStampToken();
    SignerId signerId = timeStampToken.getSID();
    BigInteger signerCertSerialNumber = signerId.getSerialNumber();
    X500Name signerCertIssuer = signerId.getIssuer();
    LOG.log(POILogger.DEBUG, "signer cert serial number: " + signerCertSerialNumber);
    LOG.log(POILogger.DEBUG, "signer cert issuer: " + signerCertIssuer);
    // TSP signer certificates retrieval
    Collection<X509CertificateHolder> certificates = timeStampToken.getCertificates().getMatches(null);
    X509CertificateHolder signerCert = null;
    Map<X500Name, X509CertificateHolder> certificateMap = new HashMap<X500Name, X509CertificateHolder>();
    for (X509CertificateHolder certificate : certificates) {
        if (signerCertIssuer.equals(certificate.getIssuer()) && signerCertSerialNumber.equals(certificate.getSerialNumber())) {
            signerCert = certificate;
        }
        certificateMap.put(certificate.getSubject(), certificate);
    }
    // TSP signer cert path building
    if (signerCert == null) {
        throw new RuntimeException("TSP response token has no signer certificate");
    }
    List<X509Certificate> tspCertificateChain = new ArrayList<X509Certificate>();
    JcaX509CertificateConverter x509converter = new JcaX509CertificateConverter();
    x509converter.setProvider("BC");
    X509CertificateHolder certificate = signerCert;
    do {
        LOG.log(POILogger.DEBUG, "adding to certificate chain: " + certificate.getSubject());
        tspCertificateChain.add(x509converter.getCertificate(certificate));
        if (certificate.getSubject().equals(certificate.getIssuer())) {
            break;
        }
        certificate = certificateMap.get(certificate.getIssuer());
    } while (null != certificate);
    // verify TSP signer signature
    X509CertificateHolder holder = new X509CertificateHolder(tspCertificateChain.get(0).getEncoded());
    DefaultCMSSignatureAlgorithmNameGenerator nameGen = new DefaultCMSSignatureAlgorithmNameGenerator();
    DefaultSignatureAlgorithmIdentifierFinder sigAlgoFinder = new DefaultSignatureAlgorithmIdentifierFinder();
    DefaultDigestAlgorithmIdentifierFinder hashAlgoFinder = new DefaultDigestAlgorithmIdentifierFinder();
    BcDigestCalculatorProvider calculator = new BcDigestCalculatorProvider();
    BcRSASignerInfoVerifierBuilder verifierBuilder = new BcRSASignerInfoVerifierBuilder(nameGen, sigAlgoFinder, hashAlgoFinder, calculator);
    SignerInformationVerifier verifier = verifierBuilder.build(holder);
    timeStampToken.validate(verifier);
    // verify TSP signer certificate
    if (signatureConfig.getTspValidator() != null) {
        signatureConfig.getTspValidator().validate(tspCertificateChain, revocationData);
    }
    LOG.log(POILogger.DEBUG, "time-stamp token time: " + timeStampToken.getTimeStampInfo().getGenTime());
    return timeStampToken.getEncoded();
}