Example usage for org.apache.commons.codec.binary Hex encodeHexString

List of usage examples for org.apache.commons.codec.binary Hex encodeHexString

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Introduction

In this page you can find the example usage for org.apache.commons.codec.binary Hex encodeHexString.

Prototype

public static String encodeHexString(byte[] data)

Source Link

Document

Converts an array of bytes into a String representing the hexadecimal values of each byte in order.

Usage

From source file:Crypto.java

/**
 * this must be called after creating the initial Crypto object. It creates a salt of SALT_LEN bytes
 * and generates the salt bytes using secureRandom().  The encryption secret key is created 
 * along with the initialization vectory. The member variable mEcipher is created to be used
 * by the class later on when either creating a CipherOutputStream, or encrypting a buffer
 * to be written to disk./*from   www.j a v  a 2s  . c  o m*/
 *  
 * @throws NoSuchAlgorithmException
 * @throws InvalidKeySpecException
 * @throws NoSuchPaddingException
 * @throws InvalidParameterSpecException
 * @throws IllegalBlockSizeException
 * @throws BadPaddingException
 * @throws UnsupportedEncodingException
 * @throws InvalidKeyException
 */
public void setupEncrypt() throws NoSuchAlgorithmException, InvalidKeySpecException, NoSuchPaddingException,
        InvalidParameterSpecException, IllegalBlockSizeException, BadPaddingException,
        UnsupportedEncodingException, InvalidKeyException {
    SecretKeyFactory factory = null;
    SecretKey tmp = null;

    // crate secureRandom salt and store  as member var for later use
    mSalt = new byte[SALT_LEN];
    SecureRandom rnd = new SecureRandom();
    rnd.nextBytes(mSalt);
    Db("generated salt :" + Hex.encodeHexString(mSalt));

    factory = SecretKeyFactory.getInstance("PBKDF2WithHmacSHA1");

    /* Derive the key, given password and salt. 
     * 
     * in order to do 256 bit crypto, you have to muck with the files for Java's "unlimted security"
     * The end user must also install them (not compiled in) so beware. 
     * see here:  http://www.javamex.com/tutorials/cryptography/unrestricted_policy_files.shtml
     */
    KeySpec spec = new PBEKeySpec(mPassword.toCharArray(), mSalt, ITERATIONS, KEYLEN_BITS);
    tmp = factory.generateSecret(spec);
    SecretKey secret = new SecretKeySpec(tmp.getEncoded(), "AES");

    /* Create the Encryption cipher object and store as a member variable
     */
    mEcipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
    mEcipher.init(Cipher.ENCRYPT_MODE, secret);
    AlgorithmParameters params = mEcipher.getParameters();

    // get the initialization vectory and store as member var 
    mInitVec = params.getParameterSpec(IvParameterSpec.class).getIV();

    Db("mInitVec is :" + Hex.encodeHexString(mInitVec));
}

From source file:com.imaginea.kodebeagle.base.util.Utils.java

@NotNull
public String getDigestAsString(final String trimmedFileName)
        throws UnsupportedEncodingException, NoSuchAlgorithmException {
    MessageDigest crypt = MessageDigest.getInstance("SHA-1");
    crypt.reset();/*from ww  w. j  av  a  2  s  . c o m*/
    crypt.update(trimmedFileName.getBytes(StandardCharsets.UTF_8));
    // We think 10 chars is safe enough to rely on.
    return Hex.encodeHexString(crypt.digest()).substring(0, 10);
}

From source file:net.solarnetwork.node.hw.sma.test.SmaPacketTest.java

@Test
public void encodeGetChannelInfo() {
    SmaPacket p = SmaPacket.getChannelInfoPacket(8888, 2);
    byte[] packet = p.getPacket();
    log.debug("Got packet: " + Hex.encodeHexString(packet));
    assertNotNull("Packet", packet);
    assertArrayEquals(TestUtils.bytesFromHexString("B8 22 02 00 00 00 09"), packet);
}

From source file:com.hp.autonomy.hod.client.util.Hmac.java

private <T> String createBodyHash(final Map<String, List<T>> body) {
    if (body == null || body.isEmpty()) {
        // If no body, the body hash must be the empty string
        return EMPTY;
    } else {/*w  w  w . j  a  va2s.  co  m*/
        final List<String> components = encodeAndSpreadParameterMap(body, input -> {
            final byte[] bytes;

            if (input instanceof byte[]) {
                bytes = (byte[]) input;
            } else {
                bytes = bytesFromString(input.toString());
            }

            return Hex.encodeHexString(md5Hash(bytes));
        });

        final String bodyRepresentation = StringUtils.join(components, NEW_LINE);
        return base64EncodeForUri(md5Hash(bytesFromString(bodyRepresentation)));
    }
}

From source file:eu.xworlds.util.raknet.protocol.OpenConnectionRequest1.java

@Override
public String toString() {
    return "OpenConnectionRequest1 [magic=" + tohex(this.magic) + ", procotolVersion=" + this.procotolVersion //$NON-NLS-1$//$NON-NLS-2$
            + ", mtuPayload=" + Hex.encodeHexString(this.mtuPayload) + "]"; //$NON-NLS-1$ //$NON-NLS-2$
}

From source file:co.edu.uniandes.csw.Arquidalgos.usuario.service.UsuarioService.java

@POST
@Path("/darAmigos")
public List<UsuarioDTO> darAmigos(UsuarioDTO usuario) throws Exception {
    System.out.println("Dar amigos service de: " + usuario.getFacebookId());
    Mac sha256_HMAC = Mac.getInstance("HmacSHA256");
    String key = "123";
    SecretKeySpec secret_key = new SecretKeySpec(key.getBytes(), "HmacSHA256");
    sha256_HMAC.init(secret_key);//ww w  .  j a  va 2  s  .c  o  m

    System.out.println("TO String: " + usuario.toString());

    String hash = Hex.encodeHexString(sha256_HMAC.doFinal(usuario.toString().getBytes()));
    System.out.println("CODIGO HASH: " + hash);
    System.out.println("CODIGO HASH JSON " + usuario.getHash());

    boolean alterado = !(hash.equalsIgnoreCase(usuario.getHash()));
    System.out.println("Alterado: " + alterado);

    if (alterado) {
        throw new Exception("Se han alterado los datos");
    }

    return this.usuarioLogicService.darAmigosUsuario(usuario.getFacebookId());
}

From source file:eu.europa.esig.dss.pades.signature.PAdESLevelLTTest.java

@Override
protected void onDocumentSigned(byte[] byteArray) {
    try {/* www  .  j  a v  a  2  s. c  om*/
        ByteArrayInputStream bais = new ByteArrayInputStream(byteArray);

        PDDocument pdDoc = PDDocument.load(bais);
        List<PDSignature> sigs = pdDoc.getSignatureDictionaries();
        PDSignature pdSignature = sigs.get(0);
        byte[] contents = pdSignature.getContents(byteArray);

        byte[] digest = DSSUtils.digest(DigestAlgorithm.SHA1, contents);
        String hex = Hex.encodeHexString(digest).toUpperCase();

        String pdfString = new String(byteArray, "UTF-8");
        assertTrue(pdfString.contains(hex));
    } catch (Exception e) {
        throw new DSSException(e);
    }
}

From source file:com.edwardsit.spark4n6.piggybank.evaluation.hash.Hash.java

/**
 * @see org.apache.pig.EvalFunc#exec(org.apache.pig.data.Tuple)
 * The first argument in scripts must be a string, the 
 * {@link java.security.MessageDigest} algorithm to calculate, and the 
 * second is the field containing the data to be hashed.
 *///ww  w .  j  a  v a2s . c om
@Override
public String exec(Tuple input) throws IOException {
    String algo = null;
    DataBag bag = null;
    Tuple t = null;
    if (md == null && input.get(0) instanceof String) {
        try {
            algo = (String) input.get(0);
            md = MessageDigest.getInstance(algo);
        } catch (NoSuchAlgorithmException e) {
            throw new IOException("No such algorithm '" + algo + "'", e);
        }
    }
    if (input.get(1) instanceof DataBag) {
        bag = (DataBag) input.get(1);
        if (algo == null || bag == null)
            throw new IOException(this.getClass().getName() + "(algorithm: chararray, dataField: bag)");
        for (Iterator<Tuple> it = bag.iterator(); it.hasNext();) {
            t = it.next();
            if (t != null && t.size() > 0 && t.get(0) != null && (t.get(0)) instanceof DataByteArray) {
                md.update(((DataByteArray) t.get(0)).get());
            }
        }
    }
    return Hex.encodeHexString(md.digest());
}

From source file:com.coinkite.CoinkiteSigningRequestInterceptor.java

public String[] createSigAndTimestamp(String url) throws NoSuchAlgorithmException, InvalidKeyException {
    String apiSecret = getApiSecret();
    SecretKeySpec signingKey = new SecretKeySpec(apiSecret.getBytes(StandardCharsets.UTF_8), HMAC_SHA512_ALG);

    Mac mac = Mac.getInstance(HMAC_SHA512_ALG);
    mac.init(signingKey);/*  www .  java2s  . co  m*/

    String ts = getDateTime().format(ISO_DATE_TIME);

    byte[] bytes = mac.doFinal(getData(url, ts));
    String encoded = Hex.encodeHexString(bytes);

    return new String[] { encoded, ts };
}

From source file:com.lightboxtechnologies.nsrl.HashRecordProcessorTest.java

@Test
public void processJustRightCols() throws BadDataException, DecoderException {
    final HashData hd = new HashData(sha1, md5, crc32, name, size, prod_code, os_code, special_code);

    final RecordProcessor<HashData> proc = new HashRecordProcessor();

    assertEquals(hd,//from w ww .jav a2 s  . com
            proc.process(new String[] { Hex.encodeHexString(sha1), Hex.encodeHexString(md5),
                    Hex.encodeHexString(crc32), name, String.valueOf(size), String.valueOf(prod_code), os_code,
                    special_code }));
}