In the proposed architecture security has
two different levels; the first level is the local wireless
network (using Bluetooth) and the second one is the Internet.
Currently, the Mulle platform does not support security
on Bluetooth, IP, or UDP layers except for simple PINcode
pairing, but as shown in Table I, the possible security
features of these layers are enough to get a good level
of security on the complete system. Implementing security
mechanism is however outside of the scope of this paper.