Secure Routing Path Using Trust Values for Wireless Sensor Networks

TL;DR

This paper proposes a trust-based routing protocol for wireless sensor networks that evaluates node trustworthiness through indirect monitoring to improve security against insider attacks and finds the most trustworthy routes.

Contribution

It introduces a link state routing protocol utilizing indirect trust metrics to select secure and reliable paths, enhancing security over existing protocols.

Findings

Trust-based routing improves security against insider attacks.

The proposed protocol finds more reliable routes.

Comparison shows advantages over similar protocols.

Abstract

Traditional cryptography-based security mechanisms such as authentication and authorization are not effective against insider attacks like wormhole, sinkhole, selective forwarding attacks, etc., Trust based approaches have been widely used to counter insider attacks in wireless sensor networks. It provides a quantitative way to evaluate the trustworthiness of sensor nodes. An untrustworthy node can wreak considerable damage and adversely affect the quality and reliability of data. Therefore, analysing the trust level of a node is important. In this paper we focused about indirect trust mechanism, in which each node monitors the forwarding behavior of its neighbors in order to detect any node that behaves selfishly and does not forward the packets it receives. For this, we used a link state routing protocol based indirect trusts which forms the shortest route and finds the best trustworthy route among them by comparing the values of all the calculated route trusts as for each route present in the network. And finally, we compare our work with similar routing protocols and show its advantages over them.