Trust models in wireless sensor networks

Trust is an important factor in Wireless Sensor Networks in order to assess the believability of the produced data. Due to the limited computational power and energy resources of the wireless sensor networks, it is a challenge to maintain trust while using the energy efficiently. Previously we developed a trust enhancing architecture called ProTru. In order to use energy more efficiently, we developed a multi-hop version of our previous architecture called MultiProTru. In this architecture routing is done based on the trust values of the cluster heads. In MultiProTru in order to find untrusted data we used Kalman filtering approach. This new architecture will assist mission critical sensor networks in assessing the trust value of the data by calculating the network's trustworthiness.