Multi Group Key Agreement Mechanism for Mobile P2P Wireless Networks
Résumé
Secure and efficient communication among a set
of mobile nodes is one of the most important aspect in P2P
wireless networks. Security of various group-oriented applica-
tions requires a group secret shared between all participants.
Several group key protocols have been presented in the literature
to enable secrecy of communication among dynamic group of
participants. However, most of them suffer from the scalability
problem. In this paper, we propose a novel multi group key
agreement mechanism for P2P wireless network. The proposed
model is organized as several neighboring rings. Each group of
peer belonging to the same ring has to agree on a contributed
key, and the peer belonging to two adjacency rings have one key
for each ring. Then, only a small set of nodes has to recalculate
the key in case of join or leave operations.