Research and Development of Trust Mechanism for Pervasive Computing
普适计算环境下信任机制的研究进展

In pervasive computing environment,various resources,devices and users are frequently changeable.Service providers and requesters commonly do not know each other.Therefore,it becomes an important foundation to identify unknown entities for pervasive computing security.However,explicit identity is the base for traditional authentication methods.Strange entities can't be authenticated by those conventional solutions.Fortunately,trust model can solve the uncertainty problem in pervasive computing environments and set up trust relationship between strange entities.Consequently,it becomes one of the hot spots in pervasive computing research presently and there is much related work on it.Based on the status quo,an overview is made in this paper,in which different solutions presented are analyzed and discussed.Subsequently,several design guidelines of trust modeling for pervasive computing are summarized,too.Finally,a summary and a prospect for further interesting research directions are proposed.