A Secure Framework For Wireless Sensor Network

Abstract

A wireless sensor network (WSN) is the network of many newlineminiature devices that have capability to sense the phenomenon being newlinemonitored and communicate the raw data to the base station. WSNs can newlinebe deployed in the field of interest with backbone network infrastructure newlineor non-infrastructure topology. WSNs are the backbone for newlinedevelopments in Internet of Things (IoT) applications. WSN systems newlinecan be broadly classified as static networks and mobile or dynamic newlinenetworks. Static WSNs have the sensor nodes placed in predefined newlinepositions. Dynamic or Mobile WSNs (MWSNs) have mobile nodes or newlinemobile sinks or both mobile and are suitable for applications that require newlinemonitoring the moving objects with sensor nodes mounted on them such newlineas animals or humans. Design, development and implementation of newlinemechanisms for sensor node authentication, secure exchange of route newlineinformation and data in MWSNs has several challenges due to dynamic newlinenetwork attributes and constrained energy availability. The research newlinechallenges for MWSN namely node authentication, black hole attack newline(DoS attack), key management are addressed in this work. newlineThe major contribution of the thesis is design, development newlineand implementation of sensor node authentication protocol and two newlinesecurity mechanisms over routing in the network namely Lightweight newlineSecurity Scheme for Cluster-based WSN (LSSCW) and Enhanced newlineDetection and Prevention Mechanism for Black-hole-attack newline(EDPMBA). The sensor node authentication protocol for clustered newlineMWSN authenticates the nodes when they move across the clusters. The newlinex newlinenovelty of the work is it minimizes the re-authentication of the sensor newlinenodes till the time the node does not leave the cluster. The results show newlinethat the authentication protocol developed exhibits less communication newlineoverheads, improved energy efficiency and re-authentication latency. newlineLSSCW scheme ensures end-to-end data security between source and newlinedestination. Security analysis of LSSCW scheme with respect to newlineauthentication, confidentiality and integrity is presented.