Abstract
Trust can be calculated based on behavior of the node. Node misbehavior may be in terms of sending packet to wrong receiver, manipulating packet content, dropping packets while forwarding etc. Trust calculations depend upon input database either retrieved by node itself or retrieved by neighbor node. Input database refers interaction among the nodes that is behavior pattern and comparison of output of the normal routine response with standard behavior pattern. If there is variation in actual response against anticipated response that node need to be verified on the basis of meticulously crafted trust testimonial. Observing, comparing and analyzing variance with our previous experience may reduce energy consumption rather than starting from scratch every time. Our contribution in this paper is to study state of the art research survey of existing trust calculation methodologies. Further Trust Management Framework explaining the phases of trust calculation, trust evaluation, trust outcome is proposed. This paper may be a good starting point for those who want to pursue research in trust management area of wireless sensor network.
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