Security Assessment Model to Analysis DOS Attacks in WSN

Internet of Things (IoT) technology is getting more importance as many organizations from different sectors are moving toward adopting this technology. It introduces an efficient ways of collecting, processing and distributing data. Wireless sensor networks (WSNs) play a vital role in the expanding growth of internet of things (IoT). However, DoS (denial-of-service) attacks are a major threat of WSNs. In this study, graph theory based model has been proposed to analyse the security of WSN under DoS attacks. The proposed model describes and assesses the security of WSN when it encounter DoS attacks by finding the attacks success probability, attack cost, attack impact, mean-time-to-compromise, attack risk and return-on-attack values. The impact of mitigation methods toward strengthening the WSN security has been described. smart home scenario WSN has been tacking as an example. The results showed that the capability of the proposed model to analysis the effects of DoS attacks in WSN. Also it showed the impact of mitigation methods in improving WSN security.