Topology-based Plug-and-Play Key-Setup

We study the use of known, well-connected network topology, to improve key setup and management. Specifically, we present the TopKeyS protocol, that uses such known-topology to allow easier, plug and play key distribution. Furthermore, ,TopKeyS improves security by limiting impact of key exposures: it ensures both perfect forward secrecy and proactive key refresh, re-establishing security after exposure. TopKeyS assumes a trusted the authentication server device, whose public key is known to all devices. This server is initialized with the network