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:net.sourceforge.jencrypt.lib.CryptoWrapper.java

/**
 * Read the encryption key into a byte array.
 * /*from   w ww  . j  a  v  a2  s .c  o  m*/
 * @param keyFile
 *            the file with the en/decryption key
 * @return byte[]
 */
public byte[] readKeyFile(File keyFile) throws IOException {
    byte[] keyBytes = null;
    byte[] bytes = null;
    try {
        keyBytes = Utils.getBytesFromFile(keyFile);
        // convert hex to bytes
        bytes = new Hex().decode(keyBytes);
    } catch (Exception e) {
        throw new IOException("Error reading keyfile '" + keyFile.getName() + "': " + e.getMessage());
    }
    return bytes;
}

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From source file:jp.primecloud.auto.api.ApiFilter.java

/**
 *
 * HMAC-SHA256???//www  .j  a va 2  s  . c  o m
 *
 * @param plainText ?
 * @param keyText
 * @return
 * @throws InvalidKeyException
 * @throws NoSuchAlgorithmException
 * @throws UnsupportedEncodingException
 */
private static String encodeSHA256(String plainText, String keyText)
        throws NoSuchAlgorithmException, InvalidKeyException, UnsupportedEncodingException {
    SecretKey secretKey = new SecretKeySpec(keyText.getBytes("UTF-8"), "HmacSHA256");
    Mac mac = Mac.getInstance("HmacSHA256");
    mac.init(secretKey);

    byte[] plainBytes = plainText.getBytes("UTF-8");
    byte[] encodedBytes = mac.doFinal(plainBytes);
    byte[] hexBytes = new Hex().encode(encodedBytes);

    return new String(hexBytes, "UTF-8");
}

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From source file:com.baidu.cc.configuration.service.impl.VersionServiceImpl.java

/**
 * Write json string to {@link OutputStream}.
 * /*from   w  w  w.  ja  v  a 2s  .  c o m*/
 * @param jsonArray
 *            {@link JsonArray}
 * @param os
 *            {@link OutputStream}
 * @throws IOException
 *             ??
 */
private void writeJson(JsonArray jsonArray, OutputStream os) throws IOException {
    String json = gson.toJson(jsonArray);
    // to byte array
    byte[] byteArray = json.getBytes(SysUtils.UTF_8);

    Hex encoder = new Hex();
    byteArray = encoder.encode(byteArray);
    IOUtils.write(byteArray, os);
}

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From source file:TimestreamsTests.java

/**
 * Generate an HMAC Based on example:// ww  w  . ja v  a2 s .c o  m
 * http://stackoverflow.com/questions/6312544
 * /hmac-sha1-how-to-do-it-properly-in-java
 * 
 * @param value
 *            is a String to hash
 * @param key
 *            is the private key to hash with#
 * @param type
 *            is the Mac format to use such as HmacSHA256
 * @return The hmac
 */
private String hmacString(String value, String key, String type) {
    try {
        byte[] keyBytes = key.getBytes();
        SecretKeySpec signingKey = new SecretKeySpec(keyBytes, type);

        // Get a Mac instance and initialize with the signing key
        Mac mac = Mac.getInstance(type);
        mac.init(signingKey);

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

        // 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) {
        fail = e.getLocalizedMessage();
        return null;
    }
}

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From source file:com.cloudant.sync.replication.BasicPushStrategy.java

public String getReplicationId() {
    HashMap<String, String> dict = new HashMap<String, String>();
    dict.put("source", this.sourceDb.getIdentifier());
    dict.put("target", this.targetDb.getIdentifier());
    // get raw SHA-1 of dictionary
    byte[] sha1Bytes = Misc.getSha1(new ByteArrayInputStream(JSONUtils.serializeAsBytes(dict)));
    // return SHA-1 as a hex string
    byte[] sha1Hex = new Hex().encode(sha1Bytes);
    return new String(sha1Hex);
}

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From source file:com.diversityarrays.dalclient.DalUtil.java

/**
 * Calculate an RFC 2104 compliant HMAC signature.
 * @param key is the signing key/* ww w . ja va2  s.  co m*/
 * @param data is the data to be signed
 * @return the base64-encoded signature as a String
 */
public static String computeHmacSHA1(String key, String data) {
    try {
        byte[] keyBytes = key.getBytes(cryptCharsetName);
        SecretKeySpec signingKey = new SecretKeySpec(keyBytes, ALGORITHM_HMAC_SHA1);

        Mac mac = Mac.getInstance(ALGORITHM_HMAC_SHA1);
        mac.init(signingKey);

        byte[] rawHmac = mac.doFinal(data.getBytes(cryptCharsetName));

        byte[] hexBytes = new Hex().encode(rawHmac);

        return new String(hexBytes, cryptCharsetName);

    } catch (NoSuchAlgorithmException e) {
        throw new RuntimeException(e);
    } catch (InvalidKeyException e) {
        throw new RuntimeException(e);
    } catch (UnsupportedEncodingException e) {
        throw new RuntimeException(e);
    }
}

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From source file:com.cloudant.sync.datastore.AttachmentManager.java

private String keyToString(byte[] key) {
    return new String(new Hex().encode(key));
}

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From source file:com.linuxbox.enkive.docstore.AbstractDocStoreService.java

/**
 * Returns a string representation of an array of bytes.
 * /*from   ww w .j  a v a  2s.  c o  m*/
 * @param hash
 * @return
 */
public static String getIdentifierFromHash(byte[] hash) {
    return new String((new Hex()).encode(hash));
}

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From source file:com.baidu.cc.ConfigLoader.java

/**
 * Read property from local resource file
 * /*  w ww.  j a v  a  2  s  .c  om*/
 * @param props to merge from local
 * @param localFile local resource file
 * @throws IOException throw all file operation exception
 */
public void readLocal(Properties props, File localFile) throws IOException {
    Assert.notNull(localFile, "Property 'localFile' is null.");
    if (!localFile.exists()) {
        throw new IOException("File not exist. " + localFile.getPath());
    }

    byte[] byteArray = FileUtils.readFileToByteArray(localFile);
    Hex encoder = new Hex();
    try {
        byteArray = encoder.decode(byteArray);
    } catch (DecoderException e) {
        throw new IOException(e.getMessage());
    }

    String json = new String(byteArray, FILE_ENCODE);

    Map<String, String> map = gson.fromJson(json, new TypeToken<Map<String, String>>() {
    }.getType());

    setVersionTag(map);
    props.putAll(map);
}

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From source file:com.baidu.cc.ConfigLoader.java

/**
 * Write property content to local resource file.
 * //from   ww  w  . j  a  v  a  2s. c o m
 * @param configItems latest configuration items
 * @param localFile loca resource file
 * @throws IOException throw all file operation exception
 */
public void writeLocal(Map<String, String> configItems, File localFile) throws IOException {
    Assert.notNull(localFile, "Property 'localFile' is null.");
    if (!localFile.exists()) {
        throw new IOException("File not exist. " + localFile.getPath());
    }

    String json = gson.toJson(configItems);
    //to byte array
    byte[] byteArray = json.getBytes(FILE_ENCODE);

    Hex encoder = new Hex();
    byteArray = encoder.encode(byteArray);

    FileUtils.writeByteArrayToFile(localFile, byteArray);
}

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