return b2
	case HighwayHash256:
		hh, _ := highwayhash.New(magicHighwayHash256Key) // New will never return error since key is 256 bit
		return hh
	case HighwayHash256S:
		hh, _ := highwayhash.New(magicHighwayHash256Key) // New will never return error since key is 256 bit
		return hh
	default:
		logger.CriticalIf(GlobalContext, errors.New("Unsupported bitrot algorithm"))
		return nil

        A = HH(A, B, C, D, X[ 0],  3);
        D = HH(D, A, B, C, X[ 8],  9);
        C = HH(C, D, A, B, X[ 4], 11);
        B = HH(B, C, D, A, X[12], 15);
        A = HH(A, B, C, D, X[ 2],  3);
        D = HH(D, A, B, C, X[10],  9);
        C = HH(C, D, A, B, X[ 6], 11);
        B = HH(B, C, D, A, X[14], 15);
        A = HH(A, B, C, D, X[ 1],  3);
        D = HH(D, A, B, C, X[ 9],  9);

    }

    /**
     * @throws Exception
     */
    @Test
    public void testToDate_SpecificPattern() throws Exception {
        final Date date = toDate("10::49::11", "ss::mm::HH");
        assertThat(new SimpleDateFormat("HH:mm:ss").format(date), is("11:49:10"));
    }

    /**
     * @throws Exception
     */
    @Test
    public void testToCalendar_Null() throws Exception {

    // ANSI C's asctime() format
    "EEE MMM d HH:mm:ss yyyy",
    // Alternative formats:
    "EEE, dd-MMM-yyyy HH:mm:ss z",
    "EEE, dd-MMM-yyyy HH-mm-ss z",
    "EEE, dd MMM yy HH:mm:ss z",
    "EEE dd-MMM-yyyy HH:mm:ss z",
    "EEE dd MMM yyyy HH:mm:ss z",
    "EEE dd-MMM-yyyy HH-mm-ss z",
    "EEE dd-MMM-yy HH:mm:ss z",
    "EEE dd MMM yy HH:mm:ss z",
    "EEE,dd-MMM-yy HH:mm:ss z",
    "EEE,dd-MMM-yyyy HH:mm:ss z",