Hello,
Our application uses the LR1110 transceiver in GFSK (Not LoRa) mode.
I am using the Crypto engine to encrypt/decrypt packets sent and received. I need to make the packet structure backward compatible with existing products. The existing packets contain the 16 bytes CMAC, however with the LR1110 only the first 4 bytes of the CMAC are made available to the application code. One way to overcome this problem id to compute the CMAC in the application firmware. So, I am looking for someone who can share with me a working sample C code that implements the 16 bytes CMAC. Thank you.
Kind regards
Mohamed Belaroussi