A Trust Model in Pervasive Computing

Security and privacy is a big problem that feazing computer researchers all along. In the pervasive computing, because the traditional methods of user authorization and access control are no longer adapted, the security and privacy becomes much more difficult to ensure. This paper proposes a dynamic trust model based on P2P. In this paper we call the trust model PDTM. The model adopts the technique of automated trust negotiation. Compared with those models existing, our trust model can fit the environment of pervasive computing even more. And it can resolve the problems well that the entities´ ubiquitous and mobile brought about.