Hello,
About the S32K CSEC module, after MCU production, the user key is empty.
And I select the authorizing key is KEY_N. Currently if update the key, what is the authorizing key value?
Hi,
you can see in AN5401:
So, when MASTER_ECU_KEY is loaded first time, blank key is used as an authorizing key:
uint32_t BLANK_KEY_VALUE[4] = {0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF}; //When key value is not written it is all FFs
Once the MASTER_ECU_KEY is loaded, it's used for authorization of other keys:
Also this could be useful:
Regards,
Lukas
As explained in the first screenshot from AN5401 above, yes.
Regards,
Lukas