Examples with MessageDigest java.security.MessageDigest used on opensource projects

Example 21 with MessageDigest

use of java.security.MessageDigest in project cas by apereo.

the class DigestUtils method rawDigest.

/**
     * Computes digest.
     *
     * @param alg  Digest algorithm to use
     * @param data data to be hashed
     * @return hash
     */
public static byte[] rawDigest(final String alg, final byte[] data) {
    try {
        final MessageDigest digest = MessageDigest.getInstance(alg);
        digest.reset();
        return digest.digest(data);
    } catch (final Exception cause) {
        throw new SecurityException(cause);
    }
}

Example 22 with MessageDigest

use of java.security.MessageDigest in project crate by crate.

the class Blobs method digest.

public static byte[] digest(String content) {
    try {
        MessageDigest digest = MessageDigest.getInstance("SHA-1");
        digest.reset();
        digest.update(content.getBytes(StandardCharsets.UTF_8));
        return digest.digest();
    } catch (NoSuchAlgorithmException e) {
        return null;
    }
}

Example 23 with MessageDigest

use of java.security.MessageDigest in project sockjs-netty by cgbystrom.

the class IframePage method generateMd5.

private static String generateMd5(String value) {
    String encryptedString = null;
    byte[] bytesToBeEncrypted;
    try {
        // convert string to bytes using a encoding scheme
        bytesToBeEncrypted = value.getBytes("UTF-8");
        MessageDigest md = MessageDigest.getInstance("MD5");
        byte[] theDigest = md.digest(bytesToBeEncrypted);
        // convert each byte to a hexadecimal digit
        Formatter formatter = new Formatter();
        for (byte b : theDigest) {
            formatter.format("%02x", b);
        }
        encryptedString = formatter.toString().toLowerCase();
    } catch (UnsupportedEncodingException e) {
        // FIXME: Return proper HTTP error
        e.printStackTrace();
    } catch (NoSuchAlgorithmException e) {
        // FIXME: Return proper HTTP error
        e.printStackTrace();
    }
    return encryptedString;
}

Example 24 with MessageDigest

use of java.security.MessageDigest in project UltimateAndroid by cymcsg.

the class TripleDES method decrypt.

/**
     * Decrypt the message with TripleDES
     *
     * @param message
     * @return
     * @throws Exception
     */
public static String decrypt(String message) throws Exception {
    if (message == null || message == "")
        return "";
    byte[] values = Base64decoding(message, 0);
    final MessageDigest md = MessageDigest.getInstance("SHA-1");
    final byte[] digestOfPassword = md.digest(token.getBytes("utf-8"));
    final byte[] keyBytes = copyOf(digestOfPassword, 24);
    for (int j = 0, k = 16; j < 8; ) {
        keyBytes[k++] = keyBytes[j++];
    }
    final SecretKey key = new SecretKeySpec(keyBytes, "DESede");
    String s1 = "12345678";
    byte[] bytes = s1.getBytes();
    final IvParameterSpec iv = new IvParameterSpec(bytes);
    final Cipher decipher = Cipher.getInstance("DESede/CBC/PKCS5Padding");
    decipher.init(Cipher.DECRYPT_MODE, key, iv);
    final byte[] plainText = decipher.doFinal(values);
    return new String(plainText, "UTF-8");
}

Example 25 with MessageDigest

use of java.security.MessageDigest in project UltimateAndroid by cymcsg.

the class TripleDES method decrypt.

/**
     * Decrypt the message with TripleDES
     *
     * @param message
     * @return
     * @throws Exception
     */
public static String decrypt(byte[] message) throws Exception {
    byte[] values = Base64decodingByte(message, 0);
    final MessageDigest md = MessageDigest.getInstance("SHA-1");
    final byte[] digestOfPassword = md.digest(token.getBytes("utf-8"));
    final byte[] keyBytes = copyOf(digestOfPassword, 24);
    for (int j = 0, k = 16; j < 8; ) {
        keyBytes[k++] = keyBytes[j++];
    }
    final SecretKey key = new SecretKeySpec(keyBytes, "DESede");
    String s1 = "12345678";
    byte[] bytes = s1.getBytes();
    final IvParameterSpec iv = new IvParameterSpec(bytes);
    final Cipher decipher = Cipher.getInstance("DESede/CBC/PKCS5Padding");
    decipher.init(Cipher.DECRYPT_MODE, key, iv);
    final byte[] plainText = decipher.doFinal(values);
    return new String(plainText, "UTF-8");
}