Example usage for org.bouncycastle.cms.bc BcRSASignerInfoVerifierBuilder build

Introduction

In this page you can find the example usage for org.bouncycastle.cms.bc BcRSASignerInfoVerifierBuilder build.

Prototype

public SignerInformationVerifier build(AsymmetricKeyParameter pubKey) throws OperatorCreationException 

Source Link

Usage

From source file:org.apache.poi.poifs.crypt.dsig.services.TSPTimeStampService.java

License:Apache License

@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);/*www . j  a  v  a  2 s .co m*/
    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(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);
    huc.setDoOutput(true); // also sets method to POST.
    huc.setRequestProperty("User-Agent", signatureConfig.getUserAgent());
    huc.setRequestProperty("Content-Type", signatureConfig.isTspOldProtocol() ? "application/timestamp-request"
            : "application/timestamp-query"); // "; charset=ISO-8859-1");

    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());
        throw new IOException("Error contacting TSP server " + signatureConfig.getTspUrl());
    }

    // 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: ", bos.toString());

    if (!contentType.startsWith(signatureConfig.isTspOldProtocol() ? "application/timestamp-response"
            : "application/timestamp-reply")) {
        throw new RuntimeException("invalid Content-Type: " + contentType);
    }

    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());

    byte[] timestamp = timeStampToken.getEncoded();
    return timestamp;
}

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