Example usage for java.security MessageDigest reset

Introduction

In this page you can find the example usage for java.security MessageDigest reset.

Prototype

public void reset()

Source Link

Document

Resets the digest for further use.

Usage

From source file:lucee.commons.digest.Hash.java

public static String hash(byte[] data, String algorithm, char[] encoding) throws NoSuchAlgorithmException {
    MessageDigest md = MessageDigest.getInstance(algorithm);
    md.reset();
    md.update(data);/*from  w  ww. j av a 2 s .co m*/
    return new String(enc(md.digest(), encoding)); // no charset needed because all characters are below us-ascii (hex)
}

From source file:org.adempiere.webui.util.BrowserToken.java

private static String getPasswordHash(MSession session, MUser user)
        throws UnsupportedEncodingException, NoSuchAlgorithmException {
    MessageDigest digest = MessageDigest.getInstance("SHA-512");
    Base64 encoder = new Base64();
    digest.reset();
    if (session.getWebSession() != null)
        digest.update(session.getWebSession().getBytes("UTF-8"));
    String password = null;/*  w  ww .j a  v a 2s  . c om*/
    if (MSystem.isZKRememberPasswordAllowed())
        password = user.getPassword();
    else
        password = new String("");
    byte[] input = digest.digest(password.getBytes("UTF-8"));
    String hash = new String(encoder.encode(input), "UTF-8");
    hash = URLEncoder.encode(hash, "UTF-8");

    return hash;
}

From source file:lucee.commons.digest.Hash.java

public static String hash(String str, String nonce, String algorithm, char[] encoding)
        throws NoSuchAlgorithmException {
    MessageDigest md = MessageDigest.getInstance(algorithm);
    md.reset();
    md.update(toBytes(str, CharsetUtil.UTF8));
    md.update(DEL);/*from   www  . j a  v  a2  s.  c o m*/
    md.update(toBytes(nonce, CharsetUtil.UTF8));
    return new String(enc(md.digest(), encoding)); // no charset needed because all characters are below us-ascii (hex)
}

From source file:org.faster.util.Encrypts.java

/**
 * ?/*from www  .  jav a  2s. co m*/
 *
 * @param algorithm ??
 * @param plainText 
 * @param salt ?
 * @return ?
 */
public static final String encrypt(String algorithm, String plainText, String salt) {
    MessageDigest md;
    try {
        md = MessageDigest.getInstance(algorithm);
    } catch (Exception e) {
        throw Exceptions.unchecked(e);
    }

    md.reset();
    if (salt != null) {
        md.update(salt.getBytes());
    }
    byte[] unencodedText = plainText.getBytes();
    md.update(unencodedText);

    byte[] encodedText = md.digest();
    return Base64.encodeBase64URLSafeString(encodedText);
}

From source file:Main.java

private static byte[] getHash(String password) {
    MessageDigest digest = null;
    try {//from   w w w  . ja v a2 s.co m
        digest = MessageDigest.getInstance("SHA-256");
    } catch (NoSuchAlgorithmException e1) {
        e1.printStackTrace();
    }
    if (digest != null) {
        digest.reset();
        return digest.digest(password.getBytes());
    } else {
        return null;
    }

}

From source file:com.linkedin.databus.client.registration.RegistrationIdGenerator.java

/**
 * Generate a hash out of the String id/*from w w w.j  a va 2 s  . co  m*/
 *
 * @param id
 * @return
 */
private static String generateByteHash(String id) {
    try {
        final MessageDigest messageDigest = MessageDigest.getInstance("MD5");
        messageDigest.reset();
        messageDigest.update(id.getBytes(Charset.forName("UTF8")));
        final byte[] resultsByte = messageDigest.digest();
        String hash = new String(Hex.encodeHex(resultsByte));

        final int length = 8;
        if (hash.length() > length)
            hash = hash.substring(0, length);

        return hash;
    } catch (NoSuchAlgorithmException nse) {
        LOG.error("Unexpected error : Got NoSuchAlgorithm exception for MD5");
        return "";
    }
}

From source file:com.algodefu.yeti.md5.MD5HashGenerator.java

public static String generateKeyByString(String string) {
    MessageDigest m = null;
    try {/*  w  ww  . j av  a2  s .c  om*/
        m = MessageDigest.getInstance("MD5");
    } catch (NoSuchAlgorithmException e) {
        e.printStackTrace();
    }
    m.reset();
    m.update(string.getBytes());
    byte[] digest = m.digest();
    BigInteger bigInt = new BigInteger(1, digest);
    String hashtext = bigInt.toString(16);
    while (hashtext.length() < 32) {
        hashtext = "0" + hashtext;
    }
    return hashtext;
}

From source file:com.algodefu.yeti.md5.MD5HashGenerator.java

public static String generateKeyByObject(Object object) {
    MessageDigest m = null;
    try {/*w  w  w.j ava  2 s . c  o m*/
        m = MessageDigest.getInstance("MD5");
    } catch (NoSuchAlgorithmException e) {
        e.printStackTrace();
    }
    m.reset();
    //m.update(objectToByteArray(object));
    m.update(SerializationUtils.serialize((Serializable) object));
    byte[] digest = m.digest();
    BigInteger bigInt = new BigInteger(1, digest);
    String hashtext = bigInt.toString(16);
    while (hashtext.length() < 32) {
        hashtext = "0" + hashtext;
    }
    return hashtext;
}

From source file:Main.java

public static String md5(String str) {
    MessageDigest algorithm = null;
    try {//from   ww  w .j a v a  2s  .  c  o m
        algorithm = MessageDigest.getInstance("MD5");
    } catch (NoSuchAlgorithmException e) {
        e.printStackTrace();
    }
    if (algorithm != null) {
        algorithm.reset();
        algorithm.update(str.getBytes());
        byte[] bytes = algorithm.digest();
        StringBuilder hexString = new StringBuilder();
        for (byte b : bytes) {
            hexString.append(Integer.toHexString(0xFF & b));
        }
        return hexString.toString();
    }
    return "";

}

From source file:org.shredzone.cilla.web.comment.CommentThreadServiceImpl.java

/**
 * Computes a mail hash that can be used at Gravatar.
 *
 * @param mail/*  w  w w  .  j  a  v a  2s.  c  o m*/
 *            mail address
 * @return md5 hash
 */
private static String computeMailHash(String mail) {
    try {
        MessageDigest md5 = MessageDigest.getInstance("MD5");
        md5.reset();
        md5.update(mail.trim().toLowerCase().getBytes("UTF-8"));

        StringBuilder digest = new StringBuilder();
        for (byte b : md5.digest()) {
            digest.append(String.format("%02x", b & 0xFF));
        }

        return digest.toString();
    } catch (NoSuchAlgorithmException | UnsupportedEncodingException ex) {
        // we expect no exception, since MD5 and UTF-8 are standards
        throw new InternalError(ex.getMessage());
    }
}