Abstract
Algorithms for unified hierarchy based access control ¡ Xukai Zou Department of Computer and Information Sciences Indiana University - Purdue University Indianapolis Indianapolis, IN 46202, USA Email: xkzou@cs.iupui.edu Byrav Ramamurthy, NV Vinodchandran, and Ravi K. Balachandran Department of Computer Science and Engineering University of Nebraska-Lincoln Lincoln, NE 68588, USA Email: ¢ byrav, vinod, ravib£ @csce.unl.edu ABSTRACT Access control is a fundamental security issue in any com- puter or communication system where there are users and resources. Recently a novel approach for access control, called unified hierarchy (UH), was proposed. In this pa- per, we present algorithms for implementing unified hier- archy and combining two unified hierarchies into one. Fur- ther, we propose typical queries for unified hierarchy and show that most of these queries can be executed
Byrav Ramamurthy
Professor & PI
My research areas include optical and wireless networks, peer-to-peer networks for multimedia streaming, network security and telecommunications. My research work is supported by the U.S. National Science Foundation, U.S. Department of Energy, U.S. Department of Agriculture, NASA, AT&T Corporation, Agilent Tech., Ciena, HP and OPNET Inc.