Thanks for the fast response!
Sounds interesting, can you share some (anonymized) code sample or guidance on the use?
Are you using the Atmel C library of the chip?
I’m also interested what you mean by configuration authentication.
My idea/hope was that the ATAES132A IC could be used to handle the AES128 encryption & decryption and for computing the Message Integrity Code (MIC) to avoid tampering of the data/payload that already is part of the LoRaWAN protocol. Mutual identity check is also taken care of by the protocol?
I was curious why the payload increases, is that by the fact that you perform asymmetric payload encryption above the LoRaWAN stack or …?