String data = "seventeen eighteen nineteen twenty twenty-one";
        String key = "F7D3A155AF5E238A0B7A871A96BA2AB2";
        String expect = "922A79152EF1D23032B17D8E023E8EBD";
        testRC4HMac(6, data, key, expect);
    }


    @Test
    public void testRC4Checksum5 () throws PACDecodingException, GeneralSecurityException {
        String data = "";