A system and method of protecting communication in a mesh network of nodes. The method including receiving a request from a joiner node of the mesh network to join the mesh network. The method including validating permissions for the joiner node responsive to receiving the request. The method including acquiring one or more dictionary objects based on the permissions. The method including granting, by a control node of a mesh network, access rights for the joiner node to join the mesh network by transmitting an access rights message comprising the one or more dictionary objects to the joiner node, wherein the access rights message causes the joiner node to locally store the one or more dictionary objects and use the one or more dictionary objects when communicating with one or more nodes of the mesh network.