Abstract
The Wireless Sensor Networks are typically deployed in ubiquitous and pervasive applications that make them susceptible to various forms of security attacks. In addition, the limited battery, processing and memory powered sensor nodes make it difficult to devise the security protocols that are inherently resource intensive. One of the potent forms of attacks is the Wormhole attacks a Denial of Service attack on the network layer. In this paper, we investigate the techniques to deal with wormhole attacks and propose a simple yet attractive approach for wormhole detection. Our approach is based on the analysis of the statistics of the sent and the received number of packets by each node m the network. To prevent the malicious nodes from modifying the contents of the packets, we also propose an approach to generate a unique key between the nodes and the base station that may further be used in the ciphering operations.
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