普适计算环境下基于信任的动态模糊访问控制模型研究

普适计算已经成为一种主流的计算模型,其安全性也成为研究重点.传统的访问控制无法解决普适环境中访问主客体不相关与信任度动态调整的问题.本文结合模糊集合理论,提出了一种基于信任度的动态模糊访问控制模型,将用户信任度划分为原始信任度与动态信任度两部分,并给出了用户信任度的基于区间值的加权模糊推理方法,让访问控制过程更加适合普适计算环境.

Research on Dynamic Trust-based Fuzzy Access Control Model in the Pervasive Computing

Pervasive computing has become the mainstream of computer model, and more research emphasis put on its safety problem. Traditional access control can＇ t resolve the problems include access subjective ＆ objective bodies not related and the trust problem of dynamic adjustment in the pervasive environment. This paper proposed a dynamic fuzzy access control model based on trust degree combining with the fuzzy set theory. It divided the user trust degree into two parts of the original trust and dynamic trust, and gave the user trust degree the weighted fuzzy reasoning method based on interval value in order to let the access control process more suitable for pervasive computing environment.