摘要: Opportunistic Networks is an evolution of delay-tolerant networks and mobile ad-hoc which has a widespread uses in both civilian military. However, the security problems opportunistic are increasingly serious due to its natural characteristics extreme intermittent self-organized. In this paper, we present key issues challenges at different network layers. Then analyze related schemes including management, routing, privacy trust management. Based on these discussions, finally point out potential future research directions networks.
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