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(byte[] input)

Source Link

Document

Performs a final update on the digest using the specified array of bytes, then completes the digest computation.

Usage

From source file:ar.gob.ambiente.servicios.gestionpersonas.entidades.util.CriptPass.java

/**
 * Mtodo para desencriptar una contrasea encriptada
 * @param textoEncriptado/*  w  ww  .  j  a  va 2 s.  c om*/
 * @return
 * @throws Exception 
 */
public static String desencriptar(String textoEncriptado) throws Exception {

    String secretKey = "zorbazorbas"; //llave para encriptar datos
    String base64EncryptedString = "";

    try {
        byte[] message = Base64.decodeBase64(textoEncriptado.getBytes("utf-8"));
        MessageDigest md = MessageDigest.getInstance("MD5");
        byte[] digestOfPassword = md.digest(secretKey.getBytes("utf-8"));
        byte[] keyBytes = Arrays.copyOf(digestOfPassword, 24);
        SecretKey key = new SecretKeySpec(keyBytes, "DESede");

        Cipher decipher = Cipher.getInstance("DESede");
        decipher.init(Cipher.DECRYPT_MODE, key);

        byte[] plainText = decipher.doFinal(message);

        base64EncryptedString = new String(plainText, "UTF-8");

    } catch (UnsupportedEncodingException | NoSuchAlgorithmException | NoSuchPaddingException
            | InvalidKeyException | IllegalBlockSizeException | BadPaddingException ex) {
        System.out.println(ex.getMessage());
    }
    return base64EncryptedString;
}

From source file:ar.gob.ambiente.servicios.gestionpersonas.entidades.util.CriptPass.java

/**
 * Mtodo para encriptar las contraseas/* w w w . j a v  a  2 s .  c  om*/
 * @param texto
 * @return 
 */
public static String encriptar(String texto) {

    String secretKey = "zorbazorbas"; //llave para encriptar datos
    String base64EncryptedString = "";

    try {

        MessageDigest md = MessageDigest.getInstance("MD5");
        byte[] digestOfPassword = md.digest(secretKey.getBytes("utf-8"));
        byte[] keyBytes = Arrays.copyOf(digestOfPassword, 24);

        SecretKey key = new SecretKeySpec(keyBytes, "DESede");
        Cipher cipher = Cipher.getInstance("DESede");
        cipher.init(Cipher.ENCRYPT_MODE, key);

        byte[] plainTextBytes = texto.getBytes("utf-8");
        byte[] buf = cipher.doFinal(plainTextBytes);
        byte[] base64Bytes = Base64.encodeBase64(buf);
        base64EncryptedString = new String(base64Bytes);

    } catch (NoSuchAlgorithmException | UnsupportedEncodingException | NoSuchPaddingException
            | InvalidKeyException | IllegalBlockSizeException | BadPaddingException ex) {
        System.out.println(ex.getMessage());
    }
    return base64EncryptedString;
}

From source file:de.dominicscheurer.passwords.SafePwdGen.java

/**
 * Computes an SHA256 hash from the given input.
 * /*from  w  w w  . j  ava2  s.c om*/
 * @param input
 *            Input to compute a hash from.
 * @return The hashed input.
 * @throws NoSuchAlgorithmException
 *             Thrown if the algorithm "SHA-256" is not present in the
 *             system.
 */
private static String sha256(String input) throws NoSuchAlgorithmException {
    MessageDigest mDigest = MessageDigest.getInstance("SHA-256");
    byte[] result = mDigest.digest(input.getBytes());
    StringBuffer sb = new StringBuffer();
    for (int i = 0; i < result.length; i++) {
        sb.append(Integer.toString((result[i] & 0xff) + 0x100, 16).substring(1));
    }

    return sb.toString();
}

From source file:Componentes.EncryptionMD5.java

public static String Desencriptar(String encriptado) {
    System.out.println(encriptado);
    String secretKey = "qualityinfosolutions"; //llave para encriptar datos
    String base64EncryptedString = "";

    try {/*from w w w. j a v  a2  s  . c om*/
        System.out.println("h");
        byte[] message = Base64.decodeBase64(encriptado.getBytes("utf-8"));
        System.out.println("b");
        MessageDigest md = MessageDigest.getInstance("MD5");
        System.out.println("a");
        byte[] digestOfPassword = md.digest(secretKey.getBytes("utf-8"));
        System.out.println("c");
        byte[] keyBytes = Arrays.copyOf(digestOfPassword, 24);
        System.out.println("g");
        SecretKey key = new SecretKeySpec(keyBytes, "DESede");
        System.out.println("w");
        Cipher decipher = Cipher.getInstance("DESede");
        System.out.println("t");
        decipher.init(Cipher.DECRYPT_MODE, key);
        System.out.println("r");
        System.out.println(Arrays.toString(message));
        byte[] plainText = decipher.doFinal(message);
        System.out.println(Arrays.toString(plainText));
        base64EncryptedString = new String(plainText, "UTF-8");

    } catch (Exception ex) {
        ex.printStackTrace();
    }
    return base64EncryptedString;
}

From source file:io.personium.core.auth.AuthUtils.java

/**
 * ?Hash?./* w  ww . j a v  a2s .c  o m*/
 * @param passwd 
 * @return ???
 */
public static String hashPassword(final String passwd) {
    if (passwd == null) {
        return null;
    }

    // DC0 Ruby Code
    // Digest::SHA256.hexdigest(pw + "Password hash salt value")
    String str2hash = passwd + PersoniumUnitConfig.getAuthPasswordSalt();
    try {
        MessageDigest md = MessageDigest.getInstance(MD_ALGORITHM);
        byte[] digestBytes = md.digest(str2hash.getBytes(CharEncoding.UTF_8));
        // ???????????DC0?????????????
        return PersoniumCoreUtils.byteArray2HexString(digestBytes);
    } catch (NoSuchAlgorithmException e) {
        throw new RuntimeException(e);
    } catch (UnsupportedEncodingException e) {
        throw new RuntimeException(e);
    }
}

From source file:org.sharetask.utility.HashCodeUtil.java

public static String getShortHashCode(final String data) {
    try {//from  w  ww .ja va  2  s.  c o m
        final MessageDigest mda = MessageDigest.getInstance("SHA-1");
        final String baseSalt = String.valueOf(System.currentTimeMillis());
        final byte[] digest = mda.digest(baseSalt.getBytes(Charset.forName("UTF-8")));
        return new String(Hex.encode(digest));
    } catch (final NoSuchAlgorithmException e) {
        throw new UnsupportedOperationException(e);
    }
}

From source file:Main.java

/**
 * //  w w w  . j  av  a2  s . c  o  m
 * @param word
 *            the string to be hashed
 * @return SHA1-hash of the word
 */
public static String hash(String word) {
    byte[] data = word.getBytes();
    MessageDigest md = null;
    try {
        md = MessageDigest.getInstance("SHA-1");
    } catch (NoSuchAlgorithmException e) {
        e.printStackTrace();
    }
    byte[] b = md.digest(data);
    String result = "";
    for (int i = 0; i < b.length; i++) {
        result += Integer.toString((b[i] & 0xff) + 0x100, 16).substring(1);
    }
    return result;
}

From source file:org.sharetask.utility.HashCodeUtil.java

public static String getHashCode(final String data) {
    try {/* ww  w.  ja  v a2  s .  c o m*/
        final MessageDigest mda = MessageDigest.getInstance("SHA-512");
        final String baseSalt = String.valueOf(System.currentTimeMillis());
        final byte[] digest = mda.digest(baseSalt.getBytes(Charset.forName("UTF-8")));
        return new String(Hex.encode(digest));
    } catch (final NoSuchAlgorithmException e) {
        throw new UnsupportedOperationException(e);
    }
}

From source file:io.seldon.memcache.SecurityHashPeer.java

public static String md5(String value) {
    try {//w w  w. jav  a  2  s.c  om
        MessageDigest md5 = MessageDigest.getInstance("MD5");
        byte[] result = md5.digest(value.getBytes());
        return hexEncode(result);
    } catch (NoSuchAlgorithmException e) {
        logger.error("Failed to get MD5 digest ", e);
        return value;
    }
}

From source file:com.wootric.androidsdk.utils.SHAUtil.java

public static String buildUniqueLink(String accountToken, String endUserEmail, long date, String randomString) {
    String unixTimestamp = String.valueOf(date);
    String randomText = randomString;

    String text = accountToken + endUserEmail + unixTimestamp + randomText;

    MessageDigest mDigest = null;

    String uniqueLink = null;// w ww.  j av a  2s .c  om
    try {
        mDigest = MessageDigest.getInstance("SHA-256");
        byte[] result = mDigest.digest(text.getBytes());
        uniqueLink = new String(Hex.encodeHex(result));
    } catch (NoSuchAlgorithmException e) {
        e.printStackTrace();
    }

    return uniqueLink;
}