assertTrue(PreauthIntegrityService.getHashAlgorithmName(0xFF).startsWith("Unknown"));
    }

    @Test
    @DisplayName("Test service cleanup")
    public void testServiceCleanup() throws CIFSException {
        String sessionId1 = "cleanup-test-1";
        String sessionId2 = "cleanup-test-2";
        byte[] salt = preauthService.generatePreauthSalt();