INTRUSION TOLERANCE MULTIPATH ROUTING IN HETEROGENEOUS WIRELESS SENSOR NETWORK
Journal Title: International Journal of Engineering Sciences & Research Technology - Year 30, Vol 4, Issue 6
Abstract
Trust based approaches have been widely used to counter insider attacks in wireless sensor networks because traditional cryptography - based security mechanisms such as authentication and authorization are not effective against such attacks. A trust model, which is the core component of a trust mechanism, provides a quantitative way to evaluate th e trustworthiness of sensor nodes. The trust evaluation is normally conducted by watchdog nodes, which monitor and collect other sensors’ behavior information. Most existing works mainly focus on the design of the trust models and how these models can be used to defend against certain insider attacks. However, these studies are empirical with the implicit assumption that the trust models are secure and reliable. In this paper, we discuss several security vulnerabilities that watchdog and trust mechanisms h ave, examine how inside attackers can exploit these security holes, and finally propose defending approaches that can mitigate the weaknesses of trust mechanism. We observe that many existing trust models adopting watchdog as their monitoring mechanism do not explicitly address these weaknesses. Our goal in this paper is to demonstrate how serious insider attacks can be
Authors and Affiliations
Fazeel Irshad Zama , Suchit R. Gajbhiye
Keywords
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