Innovative Information Science & Technology Research Group (ISYOU)
Wireless Sensor Networks (WSNs) are composed of a large number of sensor nodes that are self-organized. The open nature of WSNs makes them easily exposed to a variety of attacks and brings many security challenges. Furthermore, because of the potentially dynamic behavior of WSNs, there is hardly any infrastructure or centralized control. To enhance the security in WSNs, it is necessary to evaluate the trustworthiness of nodes since some of them may refuse to forward packets for saving their limited resources.