基于多因素信任的分布式信任模型  

Distributed Trust Model Based on Multi-factor Trust

作　　者：陈淑晓 

机构地区：[1]西安电子科技大学数学与统计学院,陕西西安710071

出　　处：《电子科技》2015年第3期50-54,共5页Electronic Science and Technology

摘　　要：提出了一种基于多因素信任的分布式信任模型,通过引用时效函数来区分不同时间内的信任在直接信任度中的重要性。在计算节点的综合信任值时,通过对节点剩余能量的分析,加入了能量信任值,并通过将通信信任和能量信任结合在一起,适当地调节通信信任和能量信任的权重大小来评价传感器节点的可信度。仿真实验与分析证明,该模型较其他模型,能更快的识别出恶意节点,在节点交互成功率和网络的安全性方面均有大幅提高。A distributed trust model is proposed based on multi-factor trust. The proposed trust model intro-duces an aging function to distinguish the importance of trust in different time. When calculating the comprehensivetrust value of nodes, the model increases the trust of energy by analyzing the residual energy of node. Also, themodel combines the trust of communication and the trust of energy and properly adjusts the size of the weight betweencommunication trust and energy trust to evaluate the credibility of sensor nodes. Simulation experiment and analysisshows that this model can quickly identify malicious nodes with improves successful rate of trading by nodes and secu-rity of information in the network system when compared with other models.

关 键 词：无线传感器网络 信任模型 时效函数 安全性 

分 类 号：TN926[电子电信—通信与信息系统]