-void doMAC(uint8_t *cc_nr_p, int length, uint8_t *div_key_p, uint8_t mac[4]);
+void doMAC(uint8_t *cc_nr_p, uint8_t *div_key_p, uint8_t mac[4]);
+void doMAC_N(uint8_t *cc_nr_p,uint8_t cc_nr_size, uint8_t *div_key_p, uint8_t mac[4]);
+
+#ifndef ON_DEVICE