Example usage for org.bouncycastle.cms CMSSignedDataParser close

Introduction

In this page you can find the example usage for org.bouncycastle.cms CMSSignedDataParser close.

Prototype

public void close() throws IOException 

Source Link

Document

Close the underlying data stream.

Usage

From source file:org.apache.tika.parser.crypto.Pkcs7Parser.java

License:Apache License

public void parse(InputStream stream, ContentHandler handler, Metadata metadata, ParseContext context)
        throws IOException, SAXException, TikaException {
    try {/*ww  w . j  av a2s  .  c om*/
        DigestCalculatorProvider digestCalculatorProvider = new JcaDigestCalculatorProviderBuilder()
                .setProvider("BC").build();
        CMSSignedDataParser parser = new CMSSignedDataParser(digestCalculatorProvider,
                new CloseShieldInputStream(stream));
        try {
            CMSTypedStream content = parser.getSignedContent();
            if (content == null) {
                throw new TikaException("cannot parse detached pkcs7 signature (no signed data to parse)");
            }
            try (InputStream input = content.getContentStream()) {
                Parser delegate = context.get(Parser.class, EmptyParser.INSTANCE);
                delegate.parse(input, handler, metadata, context);
            }
        } finally {
            parser.close();
        }
    } catch (OperatorCreationException e) {
        throw new TikaException("Unable to create DigestCalculatorProvider", e);
    } catch (CMSException e) {
        throw new TikaException("Unable to parse pkcs7 signed data", e);
    }
}

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From source file:org.cryptoworkshop.ximix.client.verify.LinkIndexVerifier.java

License:Apache License

/**
 * Return the number of messages that were on the board producing these commitments.
 *
 * @param fileList list of general transcript files.
 * @return number of messages on the board.
 * @throws TranscriptVerificationException if there is a mismatch in the file size.
 *///  w w  w .  java  2s  . co m
public static int getAndCheckBoardSize(File[] fileList) throws TranscriptVerificationException {
    int boardSize = -1;

    for (File file : fileList) {
        int count = 0;

        try {
            CMSSignedDataParser cmsParser = new CMSSignedDataParser(new BcDigestCalculatorProvider(),
                    new BufferedInputStream(new FileInputStream(file)));

            ASN1InputStream aIn = new ASN1InputStream(cmsParser.getSignedContent().getContentStream());

            while (aIn.readObject() != null) {
                count++;
            }

            if (boardSize == -1) {
                boardSize = count;
            } else if (count != boardSize) {
                throw new TranscriptVerificationException(
                        "Size mismatch in commitment files: " + file.getPath());
            }

            cmsParser.close();
        } catch (Exception e) {
            throw new TranscriptVerificationException(
                    "Size check failed on  " + file.getPath() + ": " + e.getMessage(), e);
        }
    }

    return boardSize;
}

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From source file:org.cryptoworkshop.ximix.client.verify.test.VerifierTest.java

License:Apache License

private byte[] getSequence(byte[] init, MessageChooser chooser) throws Exception {
    CMSSignedDataParser cmsParser = new CMSSignedDataParser(new BcDigestCalculatorProvider(),
            new ByteArrayInputStream(init));
    ASN1InputStream aIn = new ASN1InputStream(cmsParser.getSignedContent().getContentStream());
    ByteArrayOutputStream bOut = new ByteArrayOutputStream();

    CMSSignedDataStreamGenerator cmsGen = new CMSSignedDataStreamGenerator();

    OutputStream outputStream = cmsGen.open(bOut, true);
    DEROutputStream dOut = new DEROutputStream(outputStream);
    ASN1Primitive obj;/*from  w w  w . j a  va  2s .c  o  m*/

    int count = 0;
    while ((obj = aIn.readObject()) != null) {
        if (chooser.chooseMessage(count++)) {
            dOut.writeObject(obj);
        }
    }

    dOut.close();
    cmsParser.close();
    outputStream.close();

    return bOut.toByteArray();
}

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From source file:org.cryptoworkshop.ximix.node.crypto.service.NodeShuffledBoardDecryptionService.java

License:Apache License

private Map createTranscriptMap(SignedDataVerifier verifier, File[] fileList) {
    final Map<Integer, File> transcripts = new TreeMap<>();

    for (File file : fileList) {
        String name = file.getName();
        int beginIndex = name.indexOf('.') + 1;
        int stepNumber = Integer.parseInt(name.substring(beginIndex, name.indexOf('.', beginIndex)));

        try {// ww  w  .ja va  2 s.  co  m
            CMSSignedDataParser cmsParser = new CMSSignedDataParser(new BcDigestCalculatorProvider(),
                    new BufferedInputStream(new FileInputStream(file)));

            if (verifier.signatureVerified(cmsParser)) {
                transcripts.put(stepNumber, file);
            } else {
                nodeContext.getEventNotifier().notify(EventNotifier.Level.ERROR,
                        "Signature check failed: " + file.getPath());
            }

            cmsParser.close();
        } catch (Exception e) {
            nodeContext.getEventNotifier().notify(EventNotifier.Level.ERROR,
                    "Signature check failed on  " + file.getPath() + ": " + e.getMessage(), e);
        }
    }

    return transcripts;
}

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