Trust Based Access Control Framework for R-OSGi

In open pervasive computing environment, various devices and applications are frequently changeable. It is hard to authenticate strange entities for lack of centralized management authority. In order to solve access control problem in open pervasive environment, a trust based access control framework is introduced in this paper, and a corresponding prototype system is designed, implemented and integrated into R-OSGi, which is a widely used middleware in pervasive environment. The system is based on sunxacml and employs Pervasive Trust Management Model as well as XACML based access control policy, supports dynamic trust degree evaluation and trust degree based decision-making for authorization.