Algorithms for unified hierarchy based access control

摘要

Access control is a fundamental security issue in any computer or communication system where there are users and resources. Recently a novel approach for access control, called unified hierarchy (UH), was proposed. In this paper, we present algorithms for implementing unified hierarchy and combining two unified hierarchies into one. Further, we propose typical queries for unified hierarchy and show that most of these queries can be executed more efficiently in the unified hierarchy approach compared to other approaches for access control.