Examples with PGPException org.bouncycastle.openpgp.PGPException used on opensource projects

Example 1 with PGPException

use of org.bouncycastle.openpgp.PGPException in project camel by apache.

the class PGPKeyAccessDataFormat method getSignature.

protected PGPOnePassSignature getSignature(Exchange exchange, PGPOnePassSignatureList signatureList) throws Exception {
    if (SIGNATURE_VERIFICATION_OPTION_IGNORE.equals(getSignatureVerificationOption())) {
        return null;
    }
    if (SIGNATURE_VERIFICATION_OPTION_NO_SIGNATURE_ALLOWED.equals(getSignatureVerificationOption())) {
        throw new PGPException("PGP message contains a signature although a signature is not expected. Either change the configuration of the PGP decryptor or send a PGP message with no signature.");
    }
    List<String> allowedUserIds = determineSignaturenUserIds(exchange);
    for (int i = 0; i < signatureList.size(); i++) {
        PGPOnePassSignature signature = signatureList.get(i);
        // Determine public key from signature keyId
        PGPPublicKey sigPublicKey = publicKeyAccessor.getPublicKey(exchange, signature.getKeyID(), allowedUserIds);
        if (sigPublicKey == null) {
            continue;
        }
        // choose that signature for which a public key exists!
        signature.init(new JcaPGPContentVerifierBuilderProvider().setProvider(getProvider()), sigPublicKey);
        return signature;
    }
    if (signatureList.isEmpty()) {
        return null;
    } else {
        throw new IllegalArgumentException("Cannot verify the PGP signature: No public key found for the key ID(s) contained in the PGP signature(s). " + "Either the received PGP message contains a signature from an unexpected sender or the Public Keyring does not contain the public key of the sender.");
    }
}

Example 2 with PGPException

use of org.bouncycastle.openpgp.PGPException in project camel by apache.

the class PGPKeyAccessDataFormat method getDecryptedData.

private InputStream getDecryptedData(Exchange exchange, InputStream encryptedStream) throws Exception, PGPException {
    PGPObjectFactory pgpFactory = new PGPObjectFactory(encryptedStream, new BcKeyFingerprintCalculator());
    Object firstObject = pgpFactory.nextObject();
    // the first object might be a PGP marker packet 
    PGPEncryptedDataList enc = getEcryptedDataList(pgpFactory, firstObject);
    if (enc == null) {
        throw getFormatException();
    }
    PGPPublicKeyEncryptedData pbe = null;
    PGPPrivateKey key = null;
    // find encrypted data for which a private key exists in the secret key ring
    for (int i = 0; i < enc.size() && key == null; i++) {
        Object encryptedData = enc.get(i);
        if (!(encryptedData instanceof PGPPublicKeyEncryptedData)) {
            throw getFormatException();
        }
        pbe = (PGPPublicKeyEncryptedData) encryptedData;
        key = secretKeyAccessor.getPrivateKey(exchange, pbe.getKeyID());
        if (key != null) {
            // take the first key
            break;
        }
    }
    if (key == null) {
        throw new PGPException("PGP message is encrypted with a key which could not be found in the Secret Keyring.");
    }
    InputStream encData = pbe.getDataStream(new JcePublicKeyDataDecryptorFactoryBuilder().setProvider(getProvider()).build(key));
    return encData;
}

Example 3 with PGPException

use of org.bouncycastle.openpgp.PGPException in project camel by apache.

the class PGPKeyAccessDataFormat method unmarshal.

public Object unmarshal(Exchange exchange, InputStream encryptedStream) throws Exception {
    //NOPMD
    if (encryptedStream == null) {
        return null;
    }
    InputStream in = null;
    InputStream encData = null;
    InputStream uncompressedData = null;
    InputStream litData = null;
    OutputStreamBuilder osb = null;
    try {
        in = PGPUtil.getDecoderStream(encryptedStream);
        encData = getDecryptedData(exchange, in);
        PGPObjectFactory pgpFactory = new PGPObjectFactory(encData, new BcKeyFingerprintCalculator());
        Object object = pgpFactory.nextObject();
        if (object instanceof PGPCompressedData) {
            PGPCompressedData comData = (PGPCompressedData) object;
            uncompressedData = comData.getDataStream();
            pgpFactory = new PGPObjectFactory(uncompressedData, new BcKeyFingerprintCalculator());
            object = pgpFactory.nextObject();
        } else {
            LOG.debug("PGP Message does not contain a Compressed Data Packet");
        }
        PGPOnePassSignature signature;
        if (object instanceof PGPOnePassSignatureList) {
            signature = getSignature(exchange, (PGPOnePassSignatureList) object);
            object = pgpFactory.nextObject();
        } else {
            // no signature contained in PGP message
            signature = null;
            if (SIGNATURE_VERIFICATION_OPTION_REQUIRED.equals(getSignatureVerificationOption())) {
                throw new PGPException("PGP message does not contain any signatures although a signature is expected. Either send a PGP message with signature or change the configuration of the PGP decryptor.");
            }
        }
        PGPLiteralData ld;
        if (object instanceof PGPLiteralData) {
            ld = (PGPLiteralData) object;
        } else {
            throw getFormatException();
        }
        litData = ld.getInputStream();
        osb = OutputStreamBuilder.withExchange(exchange);
        byte[] buffer = new byte[BUFFER_SIZE];
        int bytesRead;
        while ((bytesRead = litData.read(buffer)) != -1) {
            osb.write(buffer, 0, bytesRead);
            if (signature != null) {
                signature.update(buffer, 0, bytesRead);
            }
            osb.flush();
        }
        verifySignature(pgpFactory, signature);
    } finally {
        IOHelper.close(osb, litData, uncompressedData, encData, in, encryptedStream);
    }
    return osb.build();
}

Example 4 with PGPException

use of org.bouncycastle.openpgp.PGPException in project camel by apache.

the class PGPDataFormatUtil method findPrivateKey.

@Deprecated
private static PGPPrivateKey findPrivateKey(InputStream keyringInput, InputStream encryptedInput, String passphrase, PGPPassphraseAccessor passphraseAccessor, String provider) throws IOException, PGPException, NoSuchProviderException {
    PGPSecretKeyRingCollection pgpSec = new PGPSecretKeyRingCollection(PGPUtil.getDecoderStream(keyringInput), new BcKeyFingerprintCalculator());
    PGPObjectFactory factory = new PGPObjectFactory(PGPUtil.getDecoderStream(encryptedInput), new BcKeyFingerprintCalculator());
    PGPEncryptedDataList enc;
    Object o = factory.nextObject();
    if (o == null) {
        throw new PGPException("Provided input is not encrypted.");
    }
    if (o instanceof PGPEncryptedDataList) {
        enc = (PGPEncryptedDataList) o;
    } else {
        enc = (PGPEncryptedDataList) factory.nextObject();
    }
    // nextObject() method reads from the InputStream, so rewind it!
    encryptedInput.reset();
    Iterator<?> encryptedDataObjects = enc.getEncryptedDataObjects();
    PGPPrivateKey privateKey = null;
    PGPPublicKeyEncryptedData encryptedData = null;
    while (privateKey == null && encryptedDataObjects.hasNext()) {
        encryptedData = (PGPPublicKeyEncryptedData) encryptedDataObjects.next();
        PGPSecretKey pgpSecKey = pgpSec.getSecretKey(encryptedData.getKeyID());
        if (pgpSecKey != null) {
            if (passphrase == null && passphraseAccessor != null) {
                // get passphrase from accessor
                @SuppressWarnings("unchecked") Iterator<String> userIDs = pgpSecKey.getUserIDs();
                while (passphrase == null && userIDs.hasNext()) {
                    passphrase = passphraseAccessor.getPassphrase(userIDs.next());
                }
            }
            privateKey = pgpSecKey.extractPrivateKey(new JcePBESecretKeyDecryptorBuilder().setProvider(provider).build(passphrase.toCharArray()));
        }
    }
    if (privateKey == null && pgpSec.size() > 0 && encryptedData != null) {
        throw new PGPException("Provided input is encrypted with unknown pair of keys.");
    }
    return privateKey;
}

Example 5 with PGPException

use of org.bouncycastle.openpgp.PGPException in project nifi by apache.

the class OpenPGPKeyBasedEncryptor method getDecryptedPrivateKey.

private static PGPPrivateKey getDecryptedPrivateKey(String provider, String secretKeyringFile, long keyId, char[] passphrase) throws IOException, PGPException {
    // Read in from the secret keyring file
    try (FileInputStream keyInputStream = new FileInputStream(secretKeyringFile)) {
        // Form the SecretKeyRing collection (1.53 way with fingerprint calculator)
        PGPSecretKeyRingCollection pgpSecretKeyRingCollection = new PGPSecretKeyRingCollection(keyInputStream, new BcKeyFingerprintCalculator());
        // The decryptor is identical for all keys
        final PBESecretKeyDecryptor decryptor = new JcePBESecretKeyDecryptorBuilder().setProvider(provider).build(passphrase);
        // Iterate over all secret keyrings
        Iterator<PGPSecretKeyRing> keyringIterator = pgpSecretKeyRingCollection.getKeyRings();
        PGPSecretKeyRing keyRing;
        PGPSecretKey secretKey;
        while (keyringIterator.hasNext()) {
            keyRing = keyringIterator.next();
            // If keyId exists, get a specific secret key; else, iterate over all
            if (keyId != 0) {
                secretKey = keyRing.getSecretKey(keyId);
                try {
                    return secretKey.extractPrivateKey(decryptor);
                } catch (Exception e) {
                    throw new PGPException("No private key available using passphrase", e);
                }
            } else {
                Iterator<PGPSecretKey> keyIterator = keyRing.getSecretKeys();
                while (keyIterator.hasNext()) {
                    secretKey = keyIterator.next();
                    try {
                        return secretKey.extractPrivateKey(decryptor);
                    } catch (Exception e) {
                    // TODO: Log (expected) failures?
                    }
                }
            }
        }
    }
    // If this point is reached, no private key could be extracted with the given passphrase
    throw new PGPException("No private key available using passphrase");
}