Java Code Examples for javax.xml.bind.DatatypeConverter#parseHexBinary()

public String getArtifactUrl(String realmId, String artifact) {
    byte[] sourceId =  retrieveSourceId(artifact);
    Entity realm = realmHelper.findRealmById(realmId);

    if (realm == null) {
        LOG.error("Invalid realm: " + realmId);
        throw new APIAccessDeniedException("Authorization could not be verified.");
    }

    Map<String, Object> idp = (Map<String, Object>) realm.getBody().get("idp");
    String realmSourceId = (String) idp.get("sourceId");
    if (realmSourceId == null || realmSourceId.isEmpty()) {
        LOG.error("SourceId is not configured properly for realm: " + realmId);
        throw new APIAccessDeniedException("Authorization could not be verified.");
    }

    byte[] realmByteSourceId = DatatypeConverter.parseHexBinary(realmSourceId);
    if (!Arrays.equals(realmByteSourceId, sourceId)) {
        LOG.error("SourceId from Artifact does not match configured SourceId for realm: " + realmId);
        throw new APIAccessDeniedException("Authorization could not be verified.");
    }

    return (String) idp.get("artifactResolutionEndpoint");
}
 

private byte[] getMessageKey(final FlowFile flowFile, final ProcessContext context) {
    if (context.getProperty(MESSAGE_DEMARCATOR).isSet()) {
        return null;
    }

    final String uninterpretedKey;
    if (context.getProperty(KEY).isSet()) {
        uninterpretedKey = context.getProperty(KEY).evaluateAttributeExpressions(flowFile).getValue();
    } else {
        uninterpretedKey = flowFile.getAttribute(KafkaProcessorUtils.KAFKA_KEY);
    }

    if (uninterpretedKey == null) {
        return null;
    }

    final String keyEncoding = context.getProperty(KEY_ATTRIBUTE_ENCODING).getValue();
    if (UTF8_ENCODING.getValue().equals(keyEncoding)) {
        return uninterpretedKey.getBytes(StandardCharsets.UTF_8);
    }

    return DatatypeConverter.parseHexBinary(uninterpretedKey);
}
 

@Test
public void testDecodeMultipleFrame() {
    final byte[] input = DatatypeConverter.parseHexBinary(multiFrameData);

    List<LumberjackFrame> frames = null;
    LumberjackFrame frame = null;

    for (byte b : input) {
        if (decoder.process(b)) {
            frames = decoder.getFrames();
            break;
        }
    }

    frame = frames.get(1);

    Assert.assertNotNull(frame);
    Assert.assertEquals(0x31, frame.getVersion());
    Assert.assertEquals(0x44, frame.getFrameType());
    // Load the second frame therefore seqNumber = 2
    Assert.assertEquals(2, frame.getSeqNumber());
    // Look for a predefined number of bytes for matching of the inner payload
    Assert.assertArrayEquals(DatatypeConverter.parseHexBinary("000000050000000466696c65000000"), Arrays.copyOfRange(frame.getPayload(), 0, 15));
}
 

@Test
public void testDecodeSingleFrame() {
    final byte[] input = DatatypeConverter.parseHexBinary(singleFrameData);

    List<LumberjackFrame> frames = null;
    LumberjackFrame frame = null;

    for (byte b : input) {
        if (decoder.process(b)) {
            frames = decoder.getFrames();
            break;
        }
    }

    frame = frames.get(frames.size() - 1);

    Assert.assertNotNull(frame);
    Assert.assertEquals(0x31, frame.getVersion());
    Assert.assertEquals(0x44, frame.getFrameType());
    Assert.assertEquals(1, frame.getSeqNumber());
    // Look for a predefined number of bytes for matching of the inner payload
    Assert.assertArrayEquals(DatatypeConverter.parseHexBinary("000000050000000466696c65000000"), Arrays.copyOfRange(frame.getPayload(), 0, 15));
}
 

@BeforeClass
public static void setUpBeforeClass() throws Exception {
    config = Config.getConfig();

    plainText = DatatypeConverter.parseHexBinary(PLAIN_TEXT_HEX);
    sig = DatatypeConverter.parseHexBinary(SIGNATURE_HEX);
    pemCert = DatatypeConverter.parseHexBinary(PEM_CERT_HEX);
    invalidPemCert = DatatypeConverter.parseHexBinary(INVALID_PEM_CERT);

    kf = KeyFactory.getInstance("EC");

    cf = CertificateFactory.getInstance("X.509");

    crypto = new CryptoPrimitives();
    crypto.init();

}
 

@Test
public void testSomeMessages() throws RFXComException {
    String hexMessage = "0B550217B6000000004D3C69";
    byte[] message = DatatypeConverter.parseHexBinary(hexMessage);
    RFXComRainMessage msg = (RFXComRainMessage) RFXComMessageFactory.getMessageInterface(message);
    assertEquals("SubType", PCR800, msg.subType);
    assertEquals("Seq Number", 23, msg.seqNbr);
    assertEquals("Sensor Id", "46592", msg.generateDeviceId());
    assertEquals("Rain rate", 0.0, msg.rainRate, 0.001);
    assertEquals("Total rain", 1977.2, msg.rainTotal, 0.001);
    assertEquals("Signal Level", 6, msg.signalLevel);
    assertEquals("Battery Level", 9, msg.batteryLevel);

    byte[] decoded = msg.decodeMessage();

    assertEquals("Message converted back", hexMessage, DatatypeConverter.printHexBinary(decoded));
}
 

@Test
public void testDecodeMultipleFrame() {
    final byte[] input = DatatypeConverter.parseHexBinary(multiFrameData);

    List<LumberjackFrame> frames = null;
    LumberjackFrame frame = null;

    for (byte b : input) {
        if (decoder.process(b)) {
            frames = decoder.getFrames();
            break;
        }
    }

    frame = frames.get(1);

    Assert.assertNotNull(frame);
    Assert.assertEquals(0x31, frame.getVersion());
    Assert.assertEquals(0x44, frame.getFrameType());
    // Load the second frame therefore seqNumber = 2
    Assert.assertEquals(2, frame.getSeqNumber());
    // Look for a predefined number of bytes for matching of the inner payload
    Assert.assertArrayEquals(DatatypeConverter.parseHexBinary("000000050000000466696c65000000"), Arrays.copyOfRange(frame.getPayload(), 0, 15));
}
 

private void addToCache(String hexString) throws IOException {
    byte[] encoding = DatatypeConverter.parseHexBinary(hexString);
    int[] ids = getIDs(encoding);
    int messageID = ids[0];
    List<byte[]> encodings = cache.get(messageID);
    if (encodings == null) {
        encodings = new ArrayList<>();
    }
    System.out.println("    adding LDAP " + getOperation(ids[1]) +
        " with message ID " + messageID + " to the cache");
    encodings.add(encoding);
    cache.put(messageID, encodings);
}
 

public static void main(String[] args) throws Exception {
    MessageDigest digest = MessageDigest.getInstance("SHA1");
    SecretKeySpec key = new SecretKeySpec(
        DatatypeConverter.parseHexBinary(
        "12345678123456781234567812345678"), "AES");

    // Run 'message' through streamEncrypt
    byte[] se = streamEncrypt(message, key, digest);
    // 'digest' already has the value from the stream, just finish the op
    byte[] sd = digest.digest();
    digest.reset();
    // Run 'message' through blockEncrypt
    byte[] be = blockEncrypt(message, key);
    // Take digest of encrypted blockEncrypt result
    byte[] bd = digest.digest(be);
    // Verify both returned the same value
    if (!Arrays.equals(sd, bd)) {
        System.err.println("Stream: "+DatatypeConverter.printHexBinary(se)+
            "\t Digest: "+DatatypeConverter.printHexBinary(sd));
        System.err.println("Block : "+DatatypeConverter.printHexBinary(be)+
            "\t Digest: "+DatatypeConverter.printHexBinary(bd));
        throw new Exception("stream & block encryption does not match");
    }

    digest.reset();
    // Sanity check: Decrypt separately from stream to verify operations
    String bm = (String) blockDecrypt(be, key);
    if (message.compareTo(bm) != 0) {
        System.err.println("Expected: "+message+"\nBlock:    "+bm);
        throw new Exception("Block decryption does not match expected");
    }

    // Have decryption and digest included in the object stream
    String sm = (String) streamDecrypt(se, key, digest);
    if (message.compareTo(sm) != 0) {
        System.err.println("Expected: "+message+"\nStream:   "+sm);
        throw new Exception("Stream decryption does not match expected.");
    }
}
 

private void testGcmReturnDataAfterTagVerified(final String kHex, final String pHex, final String ivHex, final String aadHex,
                                               final String cHex, final String tHex) throws Exception {

    final byte[] keyBytes = DatatypeConverter.parseHexBinary(kHex);
    final byte[] plainBytes = DatatypeConverter.parseHexBinary(pHex);
    final byte[] ivBytes = DatatypeConverter.parseHexBinary(ivHex);

    final byte[] aad = DatatypeConverter.parseHexBinary(aadHex);
    final byte[] cipherBytes = DatatypeConverter.parseHexBinary(cHex+tHex);

    final byte[] input = cipherBytes;
    final byte[] output = new byte[plainBytes.length];

    final CryptoCipher c = Utils.getCipherInstance(transformation, props);

    final Key key = new SecretKeySpec(keyBytes, "AES");

    final GCMParameterSpec iv = new GCMParameterSpec(128, ivBytes);
    c.init(Cipher.DECRYPT_MODE, key, iv);
    c.updateAAD(aad);

    //only return recovered data after tag is successfully verified
    int len = c.update(input, 0, input.length, output, 0);
    Assert.assertTrue(len == 0);
    len += c.doFinal(input, input.length, 0, output, 0);
    Assert.assertTrue(len == plainBytes.length);

    Assert.assertArrayEquals(plainBytes, output);
    c.close();
}
 

public static Message parse(String hexMessage) {
  byte[] data = DatatypeConverter.parseHexBinary(hexMessage);
  ByteBuffer buffer = ByteBuffer.wrap(data).order(ByteOrder.LITTLE_ENDIAN);

  int size = Byte.toUnsignedInt(buffer.get());
  int type = Byte.toUnsignedInt(buffer.get());

  Message m = Message.createByType(type);

  m.payload = new byte[buffer.remaining()];
  buffer.get(m.payload).position(2);
  m.parsePayload(buffer);

  return m;
}
 

/**
 * Converts a hex string into a {@link UPBMessage}.
 * 
 * @param commandString
 *            the string as returned by the modem.
 * @return a new UPBMessage.
 */
public static UPBMessage fromString(String commandString) {
    UPBMessage command = new UPBMessage();

    String typeString = commandString.substring(0, 2);
    Type type = Type.NONE;

    if (typeMap.containsKey(typeString)) {
        type = typeMap.get(typeString);
    }

    command.setType(type);

    try {
        if (commandString.length() > 2) {
            byte[] data = DatatypeConverter.parseHexBinary(commandString.substring(2));
            command.getControlWord().setBytes(data[1], data[0]);
            int index = 2;
            command.setNetwork(data[index++]);
            command.setDestination(data[index++]);
            command.setSource(data[index++]);

            int commandCode = data[index++] & 0xFF;

            if (commandMap.containsKey(commandCode)) {
                command.setCommand(commandMap.get(commandCode));
            } else {
                command.setCommand(Command.NONE);
            }

            if (index < data.length - 1) {
                command.setArguments(Arrays.copyOfRange(data, index, data.length - 1));
            }
        }
    } catch (Exception e) {
        logger.error("Attempted to parse invalid message: {}", commandString, e);
    }

    return command;
}
 

/**
 * PBKDF2
 * @param password
 * @param salt
 * @return
 */
private String getPbkdf2(String password, String salt) {
    try {
        byte[] bytes = DatatypeConverter.parseHexBinary(salt);
        KeySpec spec = new PBEKeySpec(password.toCharArray(), bytes, iterationCount, keyLength);
        SecretKeyFactory secretKeyFactory = SecretKeyFactory.getInstance(algorithm);
        byte[] hash = secretKeyFactory.generateSecret(spec).getEncoded();
        return DatatypeConverter.printHexBinary(hash);
    } catch (NoSuchAlgorithmException | InvalidKeySpecException e) {
        return "";
    }
}
 

@Transactional(readOnly = true)
@Override
public void before(final PropagationTask task, final ConnectorObject beforeObj) {
    if (AnyTypeKind.USER == task.getAnyTypeKind()) {
        User user = userDAO.find(task.getEntityKey());

        if (user != null && user.getPassword() != null) {
            Attribute missing = AttributeUtil.find(
                    PropagationTaskExecutor.MANDATORY_MISSING_ATTR_NAME,
                    task.getAttributes());

            ConnInstance connInstance = task.getResource().getConnector();
            String cipherAlgorithm = getCipherAlgorithm(connInstance);
            if (missing != null && missing.getValue() != null && missing.getValue().size() == 1
                    && missing.getValue().get(0).equals(OperationalAttributes.PASSWORD_NAME)
                    && cipherAlgorithmMatches(getCipherAlgorithm(connInstance), user.getCipherAlgorithm())) {

                String password = user.getPassword().toLowerCase();
                byte[] decodedPassword = DatatypeConverter.parseHexBinary(password);
                String base64EncodedPassword = Base64.getEncoder().encodeToString(decodedPassword);

                String cipherPlusPassword = ('{' + cipherAlgorithm.toLowerCase() + '}' + base64EncodedPassword);

                Attribute passwordAttribute = AttributeBuilder.buildPassword(
                        new GuardedString(cipherPlusPassword.toCharArray()));

                Set<Attribute> attributes = new HashSet<>(task.getAttributes());
                attributes.add(passwordAttribute);
                attributes.remove(missing);

                task.setAttributes(attributes);
            }
        }
    }
}
 

public static JobID fromHexString(String hexString) {
	return new JobID(DatatypeConverter.parseHexBinary(hexString));
}
 

private SecretKey createSecretKey() throws NoSuchAlgorithmException, InvalidKeySpecException {
    SecretKeyFactory factory = SecretKeyFactory.getInstance("PBKDF2WithHmacSHA1");
    KeySpec spec = new PBEKeySpec(getPassphrase().toCharArray(), DatatypeConverter.parseHexBinary(salt), iterationCount, keySize);
    return new SecretKeySpec(factory.generateSecret(spec).getEncoded(), "AES");
}
 

@Override
public void visit(HexValue value) {
  String stringValue = value.getValue().substring(2);
  byte[] byteValue = DatatypeConverter.parseHexBinary(stringValue);
  setValue(byteValue, Types.BINARY);
}
 

private static byte[] toByteArray(String s) {
    return DatatypeConverter.parseHexBinary(s);
}
 

public byte[] unmarshal(String s) {
    if(s==null)     return null;
    return DatatypeConverter.parseHexBinary(s);
}
 

/**
 * Transform an hexadecimal String to a byte array.
 * @param hexString the string
 * @return the byte array of the hex string
 */
public static byte[] hexStringToByte(String hexString) {
    return DatatypeConverter.parseHexBinary(hexString);
}