NeTS-NOSS: Secure, Robust and DoS-Resilient Code Dissemination in Wireless Sensor Networks

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Wireless sensor networks are ideal candidates for a wide range ofapplications, such as monitoring of critical infrastructures, dataacquisition in hazardous environments, and military operations. It isusually necessary to reprogram sensor nodes after they are deployedthrough wireless links. This project is aimed at investigating secure,robust, and DoS-resilient remote programming of sensor nodes throughwireless links. First, this project develops a novel reliabilitymechanism that integrates proactive transmission and NACK mechanismsto tolerate packet losses during code dissemination efficiently.Second, this research integrates efficient authentication mechanismsinto this approach to guarantee the integrity of disseminated codeimages. Third, this project develops weak authentication mechanismsto mitigate the potential DoS attacks aimed at consuming the resources(particularly the battery power) of sensor nodes. Fourth, this projectextends the above techniques to provide secure, proactively robust,and DoS-resilient code dissemination in hybrid sensor networks, wherethere are both high-end nodes (e.g., PDAs, Intel mote 2) connectedthrough high-capacity wireless links (e.g., 802.11) and low-end nodes(e.g., MicaZ motes) connected via low-power wireless links (e.g.,802.15.4). To achieve a thorough understanding of these techniques,this project implements all the proposed techniques and evaluates themin a hybrid wireless sensor network test-bed named WiSeNeT at NorthCarolina State University.