Abstract
In wireless sensor networks, communication overhead is the most critical issue because of the innate behavior of the resource constrained sensors. To reduce the communication overhead, a technique called as data aggregation was implemented. This technique also helps to increase the network lifetime. The results of data aggregation are used to make critical decisions and therefore the accuracy of the final aggregation result is very important. Nowadays wireless sensor networks are being used for security related applications and therefore security has also become a major concern. So, for such applications high energy efficient and accurate data aggregation protocols has to be used to prevent the private data from being pilfered from each sensor node. In this paper, a Witness based Slice and Mix Aggregate (WSMART) scheme is proposed for secure data aggregation.
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