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

Introduction

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

Prototype

public Hex() 

Source Link

Document

Creates a new codec with the default charset name #DEFAULT_CHARSET_NAME

Usage

From source file:pl.umk.mat.zawodyweb.database.pojo.Users.java

public String hashPass(String password) {
    try {/*  ww w .  j  a va  2  s .  c  o m*/
        MessageDigest md = MessageDigest.getInstance("SHA1");
        md.update((login + "+" + password).getBytes());
        byte[] digest = md.digest();
        org.apache.commons.codec.binary.Hex hex = new Hex();
        return new String(hex.encode(digest));
    } catch (NoSuchAlgorithmException ex) {
        Logger.getLogger(Users.class.getName()).log(Level.SEVERE, null, ex);
    }
    return null;
}

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From source file:rapture.kernel.AdminApiImpl.java

private String generateSecureToken() {
    try {//w ww  .j ava2 s . co  m
        // get secure random
        SecureRandom random = SecureRandom.getInstance("SHA1PRNG");
        byte bytes[] = new byte[128];
        random.nextBytes(bytes);
        // get its digest
        MessageDigest sha = MessageDigest.getInstance("SHA-1");
        byte[] result = sha.digest(bytes);
        // encode to hex
        return (new Hex()).encodeHexString(result);
    } catch (NoSuchAlgorithmException e) {
        throw RaptureExceptionFactory.create(HttpURLConnection.HTTP_BAD_REQUEST, e.getMessage());
    }
}

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From source file:staging.plugin.StagingUtils.java

/**
 * @param stageFileStore//  w w  w  .  j a  v  a  2 s. c  o  m
 * @return
 */
public static String fetchMD5Digest(IFileStore fileStore, IProgressMonitor monitor) throws CoreException {
    String result = null;
    IFileInfo info = null;
    monitor.beginTask("Retreiving staged file and calculating checksum", 100);
    info = fileStore.fetchInfo();
    if (info.getLength() == 0) {
        return "d41d8cd98f00b204e9800998ecf8427e";
    }
    MessageDigest messageDigest;
    try {
        messageDigest = MessageDigest.getInstance("MD5");
    } catch (NoSuchAlgorithmException e) {
        throw new CoreException(new Status(Status.ERROR, StagingPlugin.PLUGIN_ID,
                "Cannot create checksum without MD5 algorithm.", e));
    }
    messageDigest.reset();
    byte[] buffer = new byte[chunkSize];
    int bytesRead = 0;
    int totalBytesRead = 0;
    int progressTickBytes = (int) info.getLength() / 100;
    if (progressTickBytes == 0) {
        progressTickBytes = 1; // prevents divide by zero on files less
        // than 100 bytes
    }
    BufferedInputStream in = new BufferedInputStream(fileStore.openInputStream(EFS.NONE, null));
    try {
        while ((bytesRead = in.read(buffer, 0, chunkSize)) != -1) {
            messageDigest.update(buffer, 0, bytesRead);
            totalBytesRead = totalBytesRead + bytesRead;
            if ((totalBytesRead % progressTickBytes) < bytesRead) {
                monitor.worked(1);
            }
        }
    } catch (IOException e) {
        throw new CoreException(new Status(Status.ERROR, StagingPlugin.PLUGIN_ID,
                "Cannot read file store to calculate MD5 digest.", e));
    }
    Hex hex = new Hex();
    result = new String(hex.encode(messageDigest.digest()));
    monitor.done();
    return result;
}

---

From source file:staging.plugin.StagingUtils.java

public static final String copyWithMD5Digest(IFileStore source, IFileStore destination, IFileInfo sourceInfo,
        IProgressMonitor monitor) throws CoreException {
    // TODO honor cancellation requests during copy
    // TODO report progress
    log.debug("source: {}", source);
    log.debug("destination: {}", destination);
    // monitor.subTask("Copying file " + source.getName() + "...");
    String result = null;//from  www  .ja  v  a2  s .  com
    byte[] buffer = new byte[chunkSize];
    int length = (int) sourceInfo.getLength();
    int progressTickBytes = length / 100;
    int bytesRead = 0;
    int totalBytesCopied = 0;
    InputStream in = null;
    OutputStream out = null;
    try {
        MessageDigest messageDigest;
        try {
            messageDigest = MessageDigest.getInstance("MD5");
        } catch (NoSuchAlgorithmException e) {
            throw new CoreException(new Status(Status.ERROR, StagingPlugin.PLUGIN_ID,
                    "Cannot compare checksums without MD5 algorithm.", e));
        }
        messageDigest.reset();
        in = new BufferedInputStream(source.openInputStream(EFS.NONE, null), 1024 * 64);
        destination.getParent().mkdir(EFS.NONE, null);
        out = new BufferedOutputStream(destination.openOutputStream(EFS.NONE, null), 1024 * 64);
        while ((bytesRead = in.read(buffer, 0, chunkSize)) != -1) {
            if (monitor.isCanceled()) {
                throw new CoreException(
                        new Status(IStatus.CANCEL, StagingPlugin.PLUGIN_ID, "Staging cancelled"));
            }
            out.write(buffer, 0, bytesRead);
            messageDigest.update(buffer, 0, bytesRead);
            totalBytesCopied = totalBytesCopied + bytesRead;
            if (totalBytesCopied > 0 && progressTickBytes > 0) {
                if ((totalBytesCopied % progressTickBytes) < bytesRead) {
                    monitor.worked(1);
                    // if (length > 0) {
                    // int percent = (int) (100.0 * ((float)
                    // totalBytesCopied / length));
                    // monitor.subTask(percent + "% (" + totalBytesCopied /
                    // 1024 + "/" + length / 1024 + "K)");
                    // }
                }
            }
        }
        Hex hex = new Hex();
        result = new String(hex.encode(messageDigest.digest()));
    } catch (IOException e) {
        throw new CoreException(new Status(Status.ERROR, StagingPlugin.PLUGIN_ID, e.getLocalizedMessage(), e));
    } finally {
        try {
            if (out != null) {
                out.flush();
                out.close();
            }
            if (in != null) {
                in.close();
            }
        } catch (IOException e) {
            log.error("Trouble closing i/o resources", e);
        }
    }
    return result;
}

---

From source file:staging.plugin.StagingUtils.java

/**
 * @param sourceFileStore/* w  w w .j a  v a2 s.c om*/
 * @param sourceFileInfo
 * @param checksumMonitor
 * @return
 * @throws CoreException
 */
private static String checksumWithMD5Digest(IFileStore source, IFileInfo sourceInfo, IProgressMonitor monitor)
        throws CoreException {
    // TODO honor cancellation requests during copy
    // TODO report progress
    log.info("source: {}", source);
    String result = null;
    byte[] buffer = new byte[chunkSize];
    int length = (int) sourceInfo.getLength();
    int progressTickBytes = length / 100;
    int bytesRead = 0;
    int totalBytesCopied = 0;
    InputStream in = null;
    try {
        MessageDigest messageDigest;
        try {
            messageDigest = MessageDigest.getInstance("MD5");
        } catch (NoSuchAlgorithmException e) {
            throw new CoreException(new Status(Status.ERROR, StagingPlugin.PLUGIN_ID,
                    "Cannot compare checksums without MD5 algorithm.", e));
        }
        messageDigest.reset();
        in = new BufferedInputStream(source.openInputStream(EFS.NONE, null), 1024 * 64);
        while ((bytesRead = in.read(buffer, 0, chunkSize)) != -1) {
            messageDigest.update(buffer, 0, bytesRead);
            totalBytesCopied = totalBytesCopied + bytesRead;
            if (totalBytesCopied > 0 && progressTickBytes > 0) {
                if ((totalBytesCopied % progressTickBytes) < bytesRead) {
                    monitor.worked(1);
                    // if (length > 0) {
                    // int percent = (int) (100.0 * ((float)
                    // totalBytesCopied / length));
                    // monitor.subTask(percent + "% (" + totalBytesCopied /
                    // 1024 + "/" + length / 1024 + "K)");
                    // }
                }
            }
        }
        Hex hex = new Hex();
        result = new String(hex.encode(messageDigest.digest()));
    } catch (IOException e) {
        throw new CoreException(new Status(Status.ERROR, StagingPlugin.PLUGIN_ID, e.getLocalizedMessage(), e));
    } finally {
        try {
            if (in != null) {
                in.close();
            }
        } catch (IOException e) {
            log.error("Trouble closing i/o resources", e);
        }
    }
    return result;
}

---

From source file:test.frames.CryptoServiceSingleton.java

/**
 * Sign a message with a key./*from w  w w.ja  v  a  2s .  c  om*/
 *
 * @param message The message to sign
 * @param key     The key to use
 * @return The signed message (in hexadecimal)
 */
public String sign(String message, byte[] key) {
    try {
        // Get an hmac_sha1 key from the raw key bytes
        SecretKeySpec signingKey = new SecretKeySpec(key, HMAC_SHA_1);

        // Get an hmac_sha1 Mac instance and initialize with the signing key
        Mac mac = Mac.getInstance(HMAC_SHA_1);
        mac.init(signingKey);

        // Compute the hmac on input data bytes
        byte[] rawHmac = mac.doFinal(message.getBytes(UTF_8));

        // Convert raw bytes to Hex
        byte[] hexBytes = new Hex().encode(rawHmac);

        // Covert array of Hex bytes to a String
        return new String(hexBytes, UTF_8);
    } catch (Exception e) {
        throw new IllegalArgumentException(e);
    }
}

---

From source file:tkwatch.Utilities.java

/**
 * Generates the signature necessary to make a TradeKing API call. Adapted
 * from the <i>TradeKing API Reference Guide</i>, 03.25.2011, p. 51.
 * //from  w  w w  .j  a va 2 s  .c  o  m
 * @param data
 *            Concatenation of the API request body and a timestamp.
 * @param key
 *            The user's secret key.
 * @return Returns the necessary signature.
 * @throws java.security.SignatureException
 *             Thrown if the md5 hash-based message authentication code
 *             can't be generated.
 */
public static final String generateSignature(final String data, final String key)
        throws java.security.SignatureException {
    String result;
    try {
        byte[] encodedData = Base64.encodeBase64(data.getBytes());
        // Get an hmac_md5 key from the raw key bytes
        byte[] keyBytes = key.getBytes();
        SecretKeySpec signingKey = new SecretKeySpec(keyBytes, "HmacMD5");
        // Get an hmac_md5 Mac instance and initialize with the signing key
        Mac mac = Mac.getInstance("HmacMD5");
        mac.init(signingKey);
        // Compute the hmac on input data bytes
        byte[] rawHmac = mac.doFinal(encodedData);
        // Convert raw bytes to Hex
        byte[] hexBytes = new Hex().encode(rawHmac);
        // Covert array of Hex bytes to a String
        result = new String(hexBytes, "ISO-8859-1");
    } catch (Exception e) {
        throw new SignatureException("Failed to generate HMAC : " + e.getMessage());
    }
    return result;
}

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From source file:tor.HiddenService.java

public static void sendIntroduce(TorSocket sock, String onion, TorCircuit rendz) throws IOException {
    log.debug("Fetching Hidden Service Descriptor");
    String hsdescTxt = fetchHSDescriptor(sock, onion);
    OnionRouter rendzOR = rendz.getLastHop().router;

    // parse the hidden service descriptor
    TorDocumentParser hsdesc = new TorDocumentParser(hsdescTxt);
    //decode the intro points
    String intopointsb64 = new String(Base64.decode(hsdesc.map.get("introduction-points")));
    // parse intro points document
    TorDocumentParser intros = new TorDocumentParser(intopointsb64);
    // get first intro point
    String introPointIdentities[] = intros.getArrayItem("introduction-point");

    int introPointNum = 0;

    String ip0 = Hex.encodeHexString(new Base32().decode(introPointIdentities[introPointNum].toUpperCase()));
    OnionRouter ip0or = Consensus.getConsensus().routers.get(ip0);
    byte[] serviceKey = Base64.decode(intros.getArrayItem("service-key")[introPointNum]);
    byte skHash[] = TorCrypto.getSHA1().digest(serviceKey);
    assert (skHash.length == 20);
    log.debug("Using Intro Point: {}, building circuit...", ip0or);

    TorCircuit ipcirc = sock.createCircuit(true);
    ipcirc.create();//from w ww  . j  ava2 s .c  o  m
    ipcirc.extend(ip0or);

    // outer packet
    ByteBuffer buf = ByteBuffer.allocate(1024);
    buf.put(skHash); // service PKhash

    // inner handshake
    ByteBuffer handshake = ByteBuffer.allocate(1024);
    handshake.put((byte) 2); //ver
    handshake.put(rendzOR.ip.getAddress()); // rendz IP addr
    handshake.putShort((short) rendzOR.orport);
    try {
        handshake.put(new Hex().decode(rendzOR.identityhash.getBytes()));
    } catch (DecoderException e) {
        e.printStackTrace();
    }
    handshake.putShort((short) rendzOR.onionKeyRaw.length); // rendz key len
    handshake.put(rendzOR.onionKeyRaw); // rendz key
    handshake.put(rendz.rendezvousCookie); //rend cookie

    // tap handshake / create handshake
    byte priv_x[] = new byte[128];
    TorCrypto.rnd.nextBytes(priv_x); // g^x
    rendz.temp_x = TorCrypto.byteToBN(priv_x);
    rendz.temp_r = null;

    BigInteger pubKey = TorCrypto.DH_G.modPow(rendz.temp_x, TorCrypto.DH_P);
    byte pubKeyByte[] = TorCrypto.BNtoByte(pubKey);
    handshake.put(pubKeyByte);

    handshake.flip();

    // convert to byte array
    byte handshakeBytes[] = new byte[handshake.remaining()];
    handshake.get(handshakeBytes);

    // encrypt handshake
    PublicKey skPK = TorCrypto.asn1GetPublicKey(serviceKey);
    buf.put(TorCrypto.hybridEncrypt(handshakeBytes, skPK));

    buf.flip();
    byte introcell[] = new byte[buf.remaining()];
    buf.get(introcell);

    ipcirc.send(introcell, TorCircuit.RELAY_COMMAND_INTRODUCE1, false, (short) 0);
    log.debug("waiting for introduce acknowledgement");
    ipcirc.waitForState(TorCircuit.STATES.INTRODUCED, false);

    log.debug("Now waiting for rendezvous connect");
    rendz.waitForState(TorCircuit.STATES.RENDEZVOUS_COMPLETE, false);

    ipcirc.destroy(); // no longer needed
    log.debug("Hidden Service circuit built");
}

---

From source file:uk.ac.ox.webauth.crypto.Des3CbcSha1Kd.java

private static void test_nFold(String data, String input, String correct, int numBits) throws DecoderException {
    Hex hex = new Hex();
    byte[] output = nFold((byte[]) hex.decode(input), numBits);
    if (Arrays.equals((byte[]) hex.decode(correct), output)) {
        System.out.println("PASSED: " + numBits + "-fold of string '" + data + "'.");
    } else {/*from www .j  a va 2s .c  om*/
        System.err.println("FAILED: " + numBits + "-fold of string '" + data + "'.");
    }
}

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From source file:uk.ac.ox.webauth.crypto.Des3CbcSha1Kd.java

private static void test_DR_DK(String key, String usage, String correct_dr, String correct_dk)
        throws DecoderException, GeneralSecurityException {
    Hex hex = new Hex();
    byte[] input = (byte[]) hex.decode(key);
    byte[] constant = (byte[]) hex.decode(usage);
    byte[] dr = (byte[]) hex.decode(correct_dr);
    byte[] dk = (byte[]) hex.decode(correct_dk);
    System.out.println("Testing DR/DK, usage: " + usage + ", key: " + key);
    byte[] output = dr(input, constant);
    if (Arrays.equals(output, dr)) {
        System.out.println("PASSED: DR");
    } else {/*from  w  w  w  .ja v  a2s  . co m*/
        System.err.println("FAILED: DR");
    }
    output = dk(input, constant);
    if (Arrays.equals(output, dk)) {
        System.out.println("PASSED: DK");
    } else {
        System.err.println("FAILED: DK");
    }
}

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