Examples with JcePublicKeyKeyEncryptionMethodGenerator org.bouncycastle.openpgp.operator.jcajce.JcePublicKeyKeyEncryptionMethodGenerator used on opensource projects

Example 1 with JcePublicKeyKeyEncryptionMethodGenerator

use of org.bouncycastle.openpgp.operator.jcajce.JcePublicKeyKeyEncryptionMethodGenerator in project camel by apache.

the class PGPKeyAccessDataFormat method marshal.

public void marshal(Exchange exchange, Object graph, OutputStream outputStream) throws Exception {
    //NOPMD
    List<String> userids = determineEncryptionUserIds(exchange);
    List<PGPPublicKey> keys = publicKeyAccessor.getEncryptionKeys(exchange, userids);
    if (keys.isEmpty()) {
        throw new IllegalArgumentException("Cannot PGP encrypt message. No public encryption key found for the User Ids " + userids + " in the public keyring. Either specify other User IDs or add correct public keys to the keyring.");
    }
    exchange.getOut().setHeader(NUMBER_OF_ENCRYPTION_KEYS, Integer.valueOf(keys.size()));
    InputStream input = ExchangeHelper.convertToMandatoryType(exchange, InputStream.class, graph);
    if (armored) {
        outputStream = new ArmoredOutputStream(outputStream);
    }
    PGPEncryptedDataGenerator encGen = new PGPEncryptedDataGenerator(new JcePGPDataEncryptorBuilder(findAlgorithm(exchange)).setWithIntegrityPacket(integrity).setSecureRandom(new SecureRandom()).setProvider(getProvider()));
    // several keys can be added
    for (PGPPublicKey key : keys) {
        encGen.addMethod(new JcePublicKeyKeyEncryptionMethodGenerator(key));
    }
    OutputStream encOut = encGen.open(outputStream, new byte[BUFFER_SIZE]);
    OutputStream comOut;
    if (withCompressedDataPacket) {
        PGPCompressedDataGenerator comData = new PGPCompressedDataGenerator(findCompressionAlgorithm(exchange));
        comOut = new BufferedOutputStream(comData.open(encOut));
    } else {
        comOut = encOut;
        LOG.debug("No Compressed Data packet is added");
    }
    List<PGPSignatureGenerator> sigGens = createSignatureGenerator(exchange, comOut);
    PGPLiteralDataGenerator litData = new PGPLiteralDataGenerator();
    String fileName = findFileName(exchange);
    OutputStream litOut = litData.open(comOut, PGPLiteralData.BINARY, fileName, new Date(), new byte[BUFFER_SIZE]);
    try {
        byte[] buffer = new byte[BUFFER_SIZE];
        int bytesRead;
        while ((bytesRead = input.read(buffer)) != -1) {
            litOut.write(buffer, 0, bytesRead);
            if (sigGens != null && !sigGens.isEmpty()) {
                for (PGPSignatureGenerator sigGen : sigGens) {
                    // not nested therefore it is the same for all
                    // can this be improved that we only do it for one sigGen and set the result on the others?
                    sigGen.update(buffer, 0, bytesRead);
                }
            }
            litOut.flush();
        }
    } finally {
        IOHelper.close(litOut);
        if (sigGens != null && !sigGens.isEmpty()) {
            // reverse order
            for (int i = sigGens.size() - 1; i > -1; i--) {
                PGPSignatureGenerator sigGen = sigGens.get(i);
                sigGen.generate().encode(comOut);
            }
        }
        IOHelper.close(comOut, encOut, outputStream, input);
    }
}

Example 2 with JcePublicKeyKeyEncryptionMethodGenerator

use of org.bouncycastle.openpgp.operator.jcajce.JcePublicKeyKeyEncryptionMethodGenerator in project camel by apache.

the class PGPDataFormatTest method createEncryptedNonCompressedData.

void createEncryptedNonCompressedData(ByteArrayOutputStream bos, String keyringPath) throws Exception, IOException, PGPException, UnsupportedEncodingException {
    PGPEncryptedDataGenerator encGen = new PGPEncryptedDataGenerator(new JcePGPDataEncryptorBuilder(SymmetricKeyAlgorithmTags.CAST5).setSecureRandom(new SecureRandom()).setProvider(getProvider()));
    encGen.addMethod(new JcePublicKeyKeyEncryptionMethodGenerator(readPublicKey(keyringPath)));
    OutputStream encOut = encGen.open(bos, new byte[512]);
    PGPLiteralDataGenerator litData = new PGPLiteralDataGenerator();
    OutputStream litOut = litData.open(encOut, PGPLiteralData.BINARY, PGPLiteralData.CONSOLE, new Date(), new byte[512]);
    try {
        litOut.write("Test Message Without Compression".getBytes("UTF-8"));
        litOut.flush();
    } finally {
        IOHelper.close(litOut);
        IOHelper.close(encOut, bos);
    }
}