Research on fuzzy access control model for ubiquitous computing environments

Ubiquitous computing will be looked as mainstream computing model in future.How to protect the data security is a key issue to extend ubiquitous computing.Usage control model(UCON)is as the next generation access control model,it is more fit in ubiquitous computing environment.But UCON is a lack of description of fuzzy security problem.In ubiquitous computing environment,context information may be imperfectly and fuzzy,so it is important to infer authorization result by imperfectly and fuzzy context information.Be based upon UCON,this paper gave a fuzzy access control model: FUCM,and gave a formalized model.The new model could deal with fuzzy context information,and it had more intelligent authorization.