关键词: 无线传感器网络, 通信信任, 能量信任, 路由向量信任, 可信模型

Abstract: For the problem that there are multiple factors affect the node trust, this paper proposes node routing vector threshold; based on RFSN(Reputation-based framework for high integrity sensor networks) model，multiple factors trust model for wireless sensor networks is established by using routing vector threshold. Communication trust, energy trust and routing vector trust are all considered during the computation of node trust in this model. It could objectively show the degree of trust of a node and respond a variety of security threats which wireless sensor networks encountered. Simulation results show that the model can more accurately identify the node trust, detect the malicious node early and prolong the networks' lifetime.

Key words: Wireless Sensor Networks(WSNs), communication trust, energy trust, routing vector trust, trust model