Temporal Authorizations Scheme for XML Document

摘要

In a large networking system,to manage authorizations in a complicated XML documents system is very difficult. Recently, Access Policy Sheet (APS) [6] was introduced to provide a solution to access control for XML systems. In this paper, we proposed a temporal access control scheme in APS where the propagation of authorization rights is assumed.The authorization policies can be automatically revoked when the associated time expires. We also provide conflict resolutions for our temporal authorization system.