Example usage for java.security MessageDigest digest

Introduction

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

Prototype

public byte[] digest()

Source Link

Document

Completes the hash computation by performing final operations such as padding.

Usage

From source file:Main.java

/**
 * Gets the key hash of application package's certificate signature.
 * @since   0.1.1/*from  ww w . java 2  s.  c o m*/
 * @param   aContext The context from which the package manager is retrieved to get the signature's information.
 * @return   The list of signatures embedded to the application package.
 */
public static List<String> getKeyHash(Context aContext) {
    try {
        PackageInfo info = aContext.getPackageManager().getPackageInfo(getPackageName(aContext),
                PackageManager.GET_SIGNATURES);

        List<String> keyHashList = new ArrayList<String>(info.signatures.length);

        for (Signature signature : info.signatures) {
            MessageDigest md = MessageDigest.getInstance("SHA");
            md.update(signature.toByteArray());
            keyHashList.add(Base64.encodeToString(md.digest(), Base64.DEFAULT));
        }
        return keyHashList;
    } catch (Exception e) {
        return null;
    }
}

From source file:com.continusec.client.Util.java

/**
 * Calculate the Merkle Tree Leaf Hash for an object (HASH(chr(0) || b)).
 * @param b the input to the leaf hash//  ww  w .  j ava2s.com
 * @return the leaf hash.
 */
public static final byte[] leafMerkleTreeHash(byte[] b) {
    MessageDigest d = DigestUtils.getSha256Digest();
    d.update((byte) 0);
    d.update(b);
    return d.digest();
}

From source file:Main.java

public static byte[] SHA1(String text) throws NoSuchAlgorithmException, UnsupportedEncodingException {
    MessageDigest md;
    md = MessageDigest.getInstance("SHA-1");
    byte[] sha1hash = new byte[40];
    md.update(text.getBytes(), 0, text.length());
    // "iso-8859-1"
    sha1hash = md.digest();
    return (sha1hash);
}

From source file:Main.java

/**
 * Digests the given message with the given algorithm
 *
 * @param originalMessage the original message
 * @param algorithm the algorithm//ww w .j a  v a2  s  .c o m
 * @return the byte [ ]
 * @throws NoSuchAlgorithmException if the given algorithm does not exist in JCA
 */
public static byte[] digestMessage(byte[] originalMessage, String algorithm) throws NoSuchAlgorithmException {
    MessageDigest messageDigest;
    messageDigest = MessageDigest.getInstance(algorithm);

    messageDigest.update(originalMessage, 0, originalMessage.length);
    return messageDigest.digest();
}

From source file:annis.utils.Utils.java

/** Hashes a string using SHA-256. */
public static String calculateSHAHash(String s) throws NoSuchAlgorithmException, UnsupportedEncodingException {
    MessageDigest md = MessageDigest.getInstance("SHA-256");
    md.update(s.getBytes("UTF-8"));
    byte[] digest = md.digest();

    StringBuilder hashVal = new StringBuilder();
    for (byte b : digest) {
        hashVal.append(String.format("%02x", b));
    }/*from  w  w w  . j  a  v  a  2  s.c  o  m*/

    return hashVal.toString();
}

From source file:com.jopss.logico.negocio.util.CriptoUtils.java

public static String md5Encrypt(String texto) {
    String encripted = null;//from  w w  w. j  a  v  a  2s .co m
    try {
        MessageDigest md = MessageDigest.getInstance("MD5");
        md.update(texto.getBytes());
        BigInteger hash = new BigInteger(1, md.digest());
        encripted = hash.toString(16);
    } catch (NoSuchAlgorithmException e) {
        log.error(e);
    }
    return encripted;
}

From source file:Main.java

public static String SHA1(String text) throws NoSuchAlgorithmException, UnsupportedEncodingException {
    text = "l;jfa@#" + text + "fads@)*3 ";
    MessageDigest md;
    md = MessageDigest.getInstance("SHA-1");
    byte[] sha1hash = new byte[40];
    md.update(text.getBytes("iso-8859-1"), 0, text.length());
    sha1hash = md.digest();
    return convertToHex(sha1hash);
}

From source file:StringUtil.java

/**
 * Encrypt password by using SHA-256 algorithm, encryptedPassword length is 32 bits
 * @param clearTextPassword/*from  w  w  w .jav  a  2s . co m*/
 * @return
 * @throws NoSuchAlgorithmException
 * reference http://java.sun.com/j2se/1.4.2/docs/api/java/security/MessageDigest.html
 */
public static String getEncryptedPassword(String clearTextPassword) {

    try {
        MessageDigest md = MessageDigest.getInstance("SHA-256");
        md.update(clearTextPassword.getBytes());
        return new sun.misc.BASE64Encoder().encode(md.digest());
    } catch (NoSuchAlgorithmException e) {
        //_log.error("Failed to encrypt password.", e);
    }
    return "";
}

From source file:com.olayinka.file.transfer.Utils.java

public static String hash(String string) throws NoSuchAlgorithmException, UnsupportedEncodingException {
    MessageDigest md = null;
    md = MessageDigest.getInstance("SHA-256");
    md.update(string.getBytes());/*from ww  w . j  a  v  a2s  .  c o m*/
    byte[] digest = md.digest();
    return String.valueOf(Hex.encodeHex(digest));
}

From source file:ke.co.tawi.babblesms.server.utils.security.SecurityUtil.java

/**
 * Return the MD5 hahs of a String. It will work correctly for most 
 * strings. A word which does not work correctly is "michael" (check 
 * against online MD5 hash tools).   //from  www .  jav  a2  s  .co  m
 *
 * @param toHash plain text string to encryption
 * @return an md5 hashed string
 */
public static String getMD5Hash(String toHash) {
    String md5Hash = "";

    try {
        MessageDigest md = MessageDigest.getInstance("MD5");

        md.update(toHash.getBytes(), 0, toHash.length());

        md5Hash = new BigInteger(1, md.digest()).toString(16);

    } catch (NoSuchAlgorithmException e) {
        logger.error("NoSuchAlgorithmException while getting MD5 hash of '" + toHash + "'");
        logger.error(ExceptionUtils.getStackTrace(e));
    }

    return md5Hash;
}