Mac m = Mac.getInstance("HmacMD5");
        m.init(new SecretKeySpec(Hex.decode(key), "HMAC"));
        byte[] mac = m.doFinal(bytes);
        checkBytes(Hex.decode(expect), mac);
    }


    @Test
    public void testRC4Checksum1 () throws PACDecodingException, GeneralSecurityException {

     * 
     * @param domain
     * @param username
     * @param passwordHashHex
     *            NT password hash, hex encoded
     */
    public NtlmNtHashAuthenticator ( String domain, String username, String passwordHashHex ) {
        this(domain, username, Hex.decode(passwordHashHex));
    }


    private NtlmNtHashAuthenticator ( byte[] passwordHash ) {
        super();

    /**
     * Determines the address of a host given it's host name. NetBIOS
     * names also have a <code>type</code>. Types(aka Hex Codes)
     * are used to distinguish the various services on a host. <a
     * href="../../../nbtcodes.html">Here</a> is
     * a fairly complete list of NetBIOS hex codes. Scope is not used but is
     * still functional in other NetBIOS products and so for completeness it has been

        node[3] = B(hex_to_bin(arr, 30, 2));
        node[4] = B(hex_to_bin(arr, 32, 2));
        node[5] = B(hex_to_bin(arr, 34, 2));
    }

    public String toString() {
        return bin_to_hex(time_low, 8) + '-' +
                bin_to_hex(time_mid, 4) + '-' +
                bin_to_hex(time_hi_and_version, 4) + '-' +
                bin_to_hex(clock_seq_hi_and_reserved, 2) +
                bin_to_hex(clock_seq_low, 2) + '-' +

        this.node[ 3 ] = B(hex_to_bin(arr, 30, 2));
        this.node[ 4 ] = B(hex_to_bin(arr, 32, 2));
        this.node[ 5 ] = B(hex_to_bin(arr, 34, 2));
    }


    @Override
    public String toString () {
        return bin_to_hex(this.time_low, 8) + '-' + bin_to_hex(this.time_mid, 4) + '-' + bin_to_hex(this.time_hi_and_version, 4) + '-'

     * @param src
     * @param srcIndex
     * @param size
     * @return hex string
     */
    public static String toHexString ( byte[] src, int srcIndex, int size ) {
        char[] c = new char[2 * size];
        for ( int i = 0, j = 0; i < size; i++ ) {
            c[ j++ ] = HEX_DIGITS[ ( src[ srcIndex + i ] >> 4 ) & 0x0F ];
            c[ j++ ] = HEX_DIGITS[ src[ srcIndex + i ] & 0x0F ];
        }
        return new String(c);

    }

/** 
 * Determines the address of a host given it's host name. NetBIOS
 * names also have a <code>type</code>. Types(aka Hex Codes)
 * are used to distiquish the various services on a host. <a
 * href="../../../nbtcodes.html">Here</a> is
 * a fairly complete list of NetBIOS hex codes. Scope is not used but is
 * still functional in other NetBIOS products and so for completeness it has been

     *             if the host cannot be resolved to
     *             determine the MAC address.
     */
    byte[] getMacAddress ( CIFSContext tc ) throws UnknownHostException;


    /**
     * Returned the hex code associated with this name(e.g. 0x20 is for the file service)
     * 
     * @return the name type
     */
    int getNameType ();


    /**
     * @return the name for this address
     */

                break;
            default:
                if (c < ' ') {
                    final String hex = Integer.toHexString(c);
                    buf.append("\\u");
                    for (int j = 0; j < 4 - hex.length(); j++) {
                        buf.append('0');

                    }
                    buf.append(hex);
                } else {
                    buf.append(c);
                }
            }

        size = ( size % 2 == 0 ) ? size / 2 : size / 2 + 1;
        for( int i = 0, j = 0; i < size; i++ ) {
            c[j++] = HEX_DIGITS[(src[i] >> 4 ) & 0x0F];
            if( j == c.length ) {
                break;
            }
            c[j++] = HEX_DIGITS[src[i] & 0x0F];
        }
        return new String( c );
    }

/**