B = FF(B, C, D, A, X[ 3], 19);
        A = FF(A, B, C, D, X[ 4],  3);
        D = FF(D, A, B, C, X[ 5],  7);
        C = FF(C, D, A, B, X[ 6], 11);
        B = FF(B, C, D, A, X[ 7], 19);
        A = FF(A, B, C, D, X[ 8],  3);
        D = FF(D, A, B, C, X[ 9],  7);
        C = FF(C, D, A, B, X[10], 11);
        B = FF(B, C, D, A, X[11], 19);
        A = FF(A, B, C, D, X[12],  3);

        (byte)13, (byte) 5, (byte)60, (byte)52, (byte)44, (byte)36, (byte)28,
        (byte)20, (byte)12, (byte) 4, (byte)27, (byte)19, (byte)11, (byte)3
    };
    private static int[] totrot = {
        1, 2, 4, 6, 8, 10, 12, 14, 15, 17, 19, 21, 23, 25, 27, 28
    };

    private static byte[] pc2 = {
        (byte)13, (byte)16, (byte)10, (byte)23, (byte) 0, (byte) 4,

        time_low = hex_to_bin(arr, 0, 8);
        time_mid = S(hex_to_bin(arr, 9, 4));
        time_hi_and_version = S(hex_to_bin(arr, 14, 4));
        clock_seq_hi_and_reserved = B(hex_to_bin(arr, 19, 2));
        clock_seq_low = B(hex_to_bin(arr, 21, 2));
        node = new byte[6];
        node[0] = B(hex_to_bin(arr, 24, 2));
        node[1] = B(hex_to_bin(arr, 26, 2));
        node[2] = B(hex_to_bin(arr, 28, 2));

        this.time_low = hex_to_bin(arr, 0, 8);
        this.time_mid = S(hex_to_bin(arr, 9, 4));
        this.time_hi_and_version = S(hex_to_bin(arr, 14, 4));
        this.clock_seq_hi_and_reserved = B(hex_to_bin(arr, 19, 2));
        this.clock_seq_low = B(hex_to_bin(arr, 21, 2));
        this.node = new byte[6];
        this.node[ 0 ] = B(hex_to_bin(arr, 24, 2));
        this.node[ 1 ] = B(hex_to_bin(arr, 26, 2));

    public static final int READ_CONTROL          = 0x00020000; // 17
    public static final int WRITE_DAC             = 0x00040000; // 18
    public static final int WRITE_OWNER           = 0x00080000; // 19
    public static final int SYNCHRONIZE           = 0x00100000; // 20
    public static final int GENERIC_ALL           = 0x10000000; // 28
    public static final int GENERIC_EXECUTE       = 0x20000000; // 29

    static final int DELETE = 0x00010000; // 16
    static final int READ_CONTROL = 0x00020000; // 17
    static final int WRITE_DAC = 0x00040000; // 18
    static final int WRITE_OWNER = 0x00080000; // 19
    static final int SYNCHRONIZE = 0x00100000; // 20
    static final int GENERIC_ALL = 0x10000000; // 28
    static final int GENERIC_EXECUTE = 0x20000000; // 29
    static final int GENERIC_WRITE = 0x40000000; // 30

    /**
     * 
     */
    public static final int WRITE_DAC = 0x00040000; // 18
    /**
     * 
     */
    public static final int WRITE_OWNER = 0x00080000; // 19
    /**
     * 
     */
    public static final int SYNCHRONIZE = 0x00100000; // 20
    /**
     * 
     */
    public static final int GENERIC_ALL = 0x10000000; // 28
    /**
     * 
     */

    static final int READ_CONTROL          = 0x00020000; // 17
    static final int WRITE_DAC             = 0x00040000; // 18
    static final int WRITE_OWNER           = 0x00080000; // 19
    static final int SYNCHRONIZE           = 0x00100000; // 20
    static final int GENERIC_ALL           = 0x10000000; // 28
    static final int GENERIC_EXECUTE       = 0x20000000; // 29