An aes_128_cmac algorithm implementation
##Introduction At the beginning, My need is construct a packct that sent from a LoRaWAN node, so I need to calculate the mic(message integrity code). It uses a algorithm called aes128_cmac (RFC4493) according to the specification of LoRaWAN 1.0.1
So I extracted the code from gateway to calculate mic.
##How to use it?
You just need call function LoRaMacJoinComputeMic with a mic variable, when computation is done, all we need is in mic.