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:Main.java

public static String getSignatureString(Signature sig, String type) {
    byte[] hexBytes = sig.toByteArray();
    String fingerprint = "error!";
    try {/*from   www. jav a2s  . com*/
        MessageDigest digest = MessageDigest.getInstance(type);
        if (digest != null) {
            byte[] digestBytes = digest.digest(hexBytes);
            StringBuilder sb = new StringBuilder();
            for (byte digestByte : digestBytes) {
                sb.append((Integer.toHexString((digestByte & 0xFF) | 0x100)).substring(1, 3));
            }
            fingerprint = sb.toString();
        }
    } catch (NoSuchAlgorithmException e) {
        e.printStackTrace();
    }

    return fingerprint;
}

From source file:fi.laverca.util.X509Util.java

/** 
 * Calculates a SHA-1 hash of the given byte[] certificate
 * @param cert Certificate as byte[]/*from   www  . j  a v  a2s .  c  om*/
 * @return SHA-1 hash of the cert  or null if the calculation failed
 */
public static byte[] certHash(final byte[] cert) {
    if (cert == null) {
        return null;
    }

    byte[] hash = null;
    try {
        MessageDigest md = MessageDigest.getInstance("SHA-1");
        hash = md.digest(cert);
    } catch (Throwable t) {
        // never happens
    }

    return hash;
}

From source file:com.softenido.cafedark.image.hash.ImageHashBuilder.java

protected static byte[] buildDigest(int[] pixels) {
    try {/*from   www . ja  va 2  s  . co  m*/
        MessageDigest md = ParallelMessageDigest.getInstance(DEF_ALG);
        return md.digest(ArrayUtils.getByteArray(pixels));
    } catch (NoSuchAlgorithmException ex) {
        Logger.getLogger(ImageHashBuilder.class.getName()).log(Level.SEVERE, null, ex);
    }
    return ArrayUtils.getByteArray(pixels);
}

From source file:Main.java

private static String getMD5(byte[] source) {
    try {/*from ww w.java2s. c  o m*/
        MessageDigest md5 = MessageDigest.getInstance("MD5");
        StringBuffer result = new StringBuffer();
        for (byte b : md5.digest(source)) {
            result.append(Integer.toHexString((b & 0xf0) >>> 4));
            result.append(Integer.toHexString(b & 0x0f));
        }
        return result.toString();
    } catch (Exception e) {
        throw new RuntimeException(e.getMessage(), e);
    }
}

From source file:com.ikon.util.SecureStore.java

/**
 * MD5 encoder/*www.  j  a  v a2  s .c  o m*/
 */
public static String md5Encode(byte[] src) throws NoSuchAlgorithmException {
    StringBuilder sb = new StringBuilder();
    MessageDigest md = MessageDigest.getInstance("MD5");
    byte[] dst = md.digest(src);

    for (int i = 0; i < dst.length; i++) {
        sb.append(Integer.toHexString((dst[i] >> 4) & 0xf));
        sb.append(Integer.toHexString(dst[i] & 0xf));
    }

    return sb.toString();
}

From source file:database.DBAccountManager.java

private static String hashPassword(String password) {
    String digest;/*from  ww w  .  ja  v  a  2 s  .co  m*/
    try {
        MessageDigest md = MessageDigest.getInstance("md5");
        md.reset();
        byte[] bytes = md.digest(password.getBytes());
        digest = new BigInteger(1, bytes).toString(16);
    } catch (NoSuchAlgorithmException nsae) {
        nsae.printStackTrace();
        digest = null;
    }
    return digest;
}

From source file:net.sf.keystore_explorer.crypto.digest.DigestUtil.java

/**
 * Get a digest of the supplied message.
 *
 * @param message/*from  ww  w.  j  a v  a  2  s  .co m*/
 *            The message to digest
 * @param digestType
 *            The message digest algorithm
 * @return The message digest
 * @throws CryptoException
 *             If message digester could not be created
 */
public static byte[] getMessageDigest(byte[] message, DigestType digestType) throws CryptoException {
    MessageDigest messageDigester = getMessageDigester(digestType);

    return messageDigester.digest(message);
}

From source file:com.zotoh.maedr.device.netty.NettpHplr.java

/**
 * @param key//from  w  w w. j  a v  a2s. c  o  m
 * @return
 */
public static String calcHybiSecKeyAccept(String key) {
    // add fix GUID according to 
    // http://tools.ietf.org/html/draft-ietf-hybi-thewebsocketprotocol-10
    String k = key + "258EAFA5-E914-47DA-95CA-C5AB0DC85B11";
    String rc = "";
    try {
        MessageDigest md = MessageDigest.getInstance("SHA-1");
        byte[] bits = md.digest(k.getBytes("utf-8"));
        rc = Base64.encodeBase64String(bits);
    } catch (Exception e) {
        //TODO
    }
    return rc;
}

From source file:fr.esecure.banking.metier.utils.PasswordGenerator.java

public static String crypter(String password) {
    StringBuilder stringBuilder = null;

    try {//ww  w  .j  av  a  2 s.co  m
        MessageDigest messageDigest = MessageDigest.getInstance("SHA-256");
        byte[] hash = messageDigest.digest(password.getBytes("UTF-8"));
        stringBuilder = new StringBuilder();
        for (int i = 0; i < hash.length; i++) {
            stringBuilder.append(Integer.toString((hash[i] & 0xff) + 0x100, 16).substring(1));
        }
    } catch (UnsupportedEncodingException ex) {
        Logger.getLogger(PasswordGenerator.class.getName()).log(Level.SEVERE, null, ex);
    } catch (NoSuchAlgorithmException ex) {
        Logger.getLogger(PasswordGenerator.class.getName()).log(Level.SEVERE, null, ex);
    }
    return stringBuilder.toString();
}

From source file:eds.component.encryption.EncryptionUtility.java

public static String hashText(String text, EncryptionType type) {
    byte[] hash;/*from  www .ja v  a 2  s  . c  om*/
    MessageDigest md;
    try {
        //md = MessageDigest.getInstance("SHA-256");
        md = MessageDigest.getInstance(type.toString());
        hash = md.digest(text.getBytes("UTF-8"));
        String hashedText = new String(Hex.encodeHex(hash));//String.format("%032x", new BigInteger(hash));;//String.format("%032x", Arrays.toString(hash));

        return hashedText;
    } catch (NoSuchAlgorithmException | UnsupportedEncodingException ex) {
        throw new RuntimeException("No such algorithm or encoding method: " + ex.getMessage());
    }
}