基于安全评估的信任模型研究  

Research on Trust Model Based on Security Evaluation

作　　者：刘飞[1] 常朝稳[1] 

机构地区：[1]信息工程大学电子技术学院,河南郑州450004

出　　处：《信息工程大学学报》2011年第4期504-508,共5页Journal of Information Engineering University

基　　金：国家863计划资助项目(2007AA01Z479)

摘　　要：开放网络环境下,大量带有病毒或有恶意行为的实体会使网络系统的安全性和有效性大大降低。现有的信任模型在计算实体信任度时很少考虑其平台的安全性。提出了一种基于安全评估的信任模型,该模型将实体的平台环境安全作为交互的上下文,综合考虑实体自身的交互历史和其它实体的推荐,可以较为全面地反映了实体的可信度。仿真结果表明,该模型在安全网络中能有效遏制恶意实体的攻击,保持较高的成功交互率;在非安全网络中能降低与危险实体的交互风险,增强网络系统的安全性。In an open network environment, there are a large number of nodes with virus or malicious behavior, which greatly reduces network security and efficiency. Most of the existent trust models of- ten do not consider the platform security of the interactive node. The paper proposes a trust model based on security evaluation. The model can fully reflect the creditability of the nodes by using the node platform security as the context condition when nodes interacting, and by synthetically considering the node interaction history and the recommendation of other nodes when computing trust value. Simulation results show that the model can effectively curb attacks from malicious nodes in safe network ; and reduce the interactive risk of contacting with dangerous nodes and strengthen the secu- rity of network system in unsafe network.

关 键 词：安全评估 平台环境 上下文 信任模型 信任度 

分 类 号：TP393.08[自动化与计算机技术—计算机应用技术]