Book Chapters

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End date: 2009Subject: search.filters.subject.security

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    Information Security in Wireless Sensor Networks
    (World Scientific, 2009-10) Ouadjaout, Abdelraouf; Bagaa, Miloud; Bachir, Abdelmalik; Challal, Yacine; Lasla, Noureddine; Khelladi, Lyes
    In this chapter, we provide a comprehensive survey of security issues in wireless sensor networks. We show that the main features of WSNs, namely their limited resources, wireless communications, and close physical coupling with environment, are the main causes of the their security vulnerabilities. We discuss the main attacks stemming from these vulnerabilities, along with the solutions proposed in the literature to cope with them. The security solutions are analyzed with respect to the different layers of the network protocol stack and cover the following issues: Key management, secure data dissemination, secure data aggregation, secure channel access and secure node compromise.
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    Selfish Behavior on Packet Forwarding: An Emergent Security Problem in MANET
    (Auerback Publisher, 2008) Djenouri, Djamel; Badache, Nadjib
    The limitation in energy resources along with the multi-hop nature of mobile ad hoc networks (MANETs) causes a new vulnerability, that does not exist in traditional networks. To preserve its own battery, a node may behave selfishly and would not forward packets originated from other nodes, while using their services and consuming their resources. This deviation from the correct behavior represents a potential threat against the quality and the availability of the forwarding service. Recently, this challenging problem received more and more attention among researchers, and some solutions have been proposed. Still, to the best of our knowledge, no paper surveying these solutions has been published yet. In this entry, we deal with the emergent problem of node selfishness in MANETs, and we provide a state-of-the-art on the current proposed solutions.