A Dynamic Grid Authorization Mechanism with Result Feedback

Abstract

The authorization mechanisms in existing Grids are relatively static, so we present a dynamic authorization mechanism. Through the negotiation between users and resources, the Grid security management entities match the requests of the user and resource according to corresponding stipulations in security policies, form security contracts, and make authorization decisions. In order to reflect whether the security contracts have been well observed, we introduce the trust parameter as the feedback of our authorization mechanism. © Springer-Verlag 2004.