Wireless sensor networks secure routing algorithm based on trust value computation

Abstract

In this paper, the security attack status in wireless sensor network (WSN) is analysed, and integrated with the features of WSN, a safety trust evaluation mechanism is proposed for WSN. It evaluates the nodes by delivery behaviour of sensor nodes and considers the subjective evaluation with trust value recommendation of other nodes, to establish trust evaluation model which is easy to be implemented. It refers to indirect reputation parameters of neighbour nodes and integrates them to the energy reputation parameters, to achieve comprehensive evaluation value of nodes. The credibility is determined by the degree that is beyond or lower that the threshold. Simultaneously, we also take into account the link quality of links and put forward improved routing setting strategy. The simulation results indicate the model can reflect the credibility of nodes accurately and it can effectively protect malicious libel, which also improves the system security and reliability, to shoe the fairness of network.

Security feedback trust model of power network demand response terminal triggered by hacker attacks

“…(2) Indirect trust value is calculated based on trust transfer and composition (Ding et al, 2020;Xu, 2021): when a power grid node just joins the power grid or changes its location, in order to establish trust with the target node without interactive experience with the target node, the recommendation of other nodes is mainly used to obtain the trust value of the target entity. Recommendation is essentially a process of trust transmission.…”