SCON: A Secure Cooperative Framework Against Gossip Dissemination in Opportunistic Network

Jinlong E, Chaokun Zhang

Abstract: As a proper supplement to traditional wireless communication, opportunistic network provides a feasible and inexpensive way to achieve message delivery, especially in extreme environments. However, the gossip dissemination problem severely influences the network performance, and is hardly tackled due to the network characteristics of more transmission delay and higher mobility. To address this problem, we propose a robust and efficient framework named SCON, which contains a flexible region-based cluster routing algorithm to relieve the gossip impacts, crowd-sourcing prosecution and attacker judgment schemes and node reward and punishment mechanisms to discover and eliminate attackers that disseminate gossips, as well as several buffer maintenance mechanisms to further improve the network performance. Comprehensive evaluations demonstrate the high performance and robustness of our frame-work compared with the state-of-the-art approaches when gossip dissemination occurs.