During the network start-up, the bootstrapping phase, devices need to exchange them identities
and other information to make connections and update them routing scheme. An attacker can
easily steal this information at this stage and use them after in his attacks.
Our solution purpose is to develop a security model suggesting a scheme for pairwise key
establishment at bootstrapping phase, which will secure the two kinds of communication existing
in this network: communication be-tween a device and the base station, and communication
between two devices, a host and a router, or two routers.