International Journal of Innovative Research in Science, Engineering and Technology (IJIRSET)
The authors analyze a fundamental overview of information security and discuss some examples used throughout the rest of the paper. Their security engineering methodology is presented. This paper also presents the definition and evaluation of a new protocol for providing a Wireless Sensor Network (WSN) with a hierarchical organization. Differently from previously proposed solutions, protocol, "Clique clustering" includes in its operation a fail-safe mechanism for dealing with node failure or removal, which are typical of WSNs. The network is partitioned into clusters that are cliques (nodes in each clusters are directly connected to each other's).