Self-organized network-layer security in mobile ad hoc networks

Abstract

Protecting the network layer in a mobile ad hoc network is an important research topic in wireless security. This paper describes our unified network-layer security solution in ad hoc networks, which protects both routing and packet forwarding functionalities in the context of the AODV protocol. To address the unique characteristics of ad hoc networks, we take a self-organized approach by exploiting full localized design, without assuming any a priori trust or secret association between nodes. In our design, each node has a token in order to participate in the network operations, and its local neighbors collaboratively monitor it to detect any misbehavior in routing or packet forwarding services. Upon expiration of the token, each node renews its token via its multiple neighbors. The period of the validity of a node's token is dependent on how long it has stayed and behaved well in the network. A well-behaving node accumulates its credit and renews its token less and less frequently as time evolves. In essence, our security solution exploits collaboration among local nodes to protect the network layer without completely trusting any individual node.

RAPID: Traffic-agnostic intrusion detection for resource-constrained wireless mesh networks

“…In cooperative IDS solutions (e.g., hierarchical [12,[30][31][32], groupbased [33][34][35], zone-based [36], or neighbor-assisted [37,38]) every node is assigned a few IDS functions to detect attacks based on local observation. A cooperative IDS engine is then employed for detecting more attacks, based on neighbor information [13,38]. Cooperative mechanisms incur high communication overhead, caused by message exchange required for intrusion detection, and high detection latency [39], since some of decisions are made only after receiving other nodes' reports.…”

Computer Science & Information Technology ( CS & IT )

“…To enforce cooperation several game theory based mechanisms [20][21][22] and other novel mechanisms [23,24] have been proposed in the literature, but these mechanisms also suffer from routing and processing overheads.…”

A game-theoretic intrusion detection model for mobile ad hoc networks

“…Due to the negative impact of misbehaving nodes, researchers have developed different solutions to cope with such a problem. Proposed cooperation enforcement models are based on threshold cryptography [7], micro-payments [6] and reputation [8]. CORE [8] is a cooperative enforcement mechanism based on monitoring and reputation systems.…”

“…10. 024 and solutions for solving the selfishness problem in routing already exist [6][7][8]. On the other hand, the selfishness problem naturally exists in MANET, although the problem has not been widely studied to our best knowledge.…”