1140 search results - page 157 / 228 » A Purpose-Based Access Control Model |
CCS
2008
ACM
13 years 10 months ago
2008
ACM
Attribute staleness arises due to the physical distribution of authorization information, decision and enforcement points. This is a fundamental problem in virtually any secure di...
RBAC
2000
13 years 9 months ago
2000
: Enabling Technologies for Role Based Online Decision Engines Thomas Hildmann, Thomas Gebhardt 22-Feb-2000 The goal of our work at the Technical University of Berlin is to develop...
ICECCS
2007
IEEE
14 years 2 months ago
2007
IEEE
Identifying and resolving design problems in the early design phase can help ensure software quality and save costs. There are currently few tools for analyzing designs expressed ...
CHI
2002
ACM
14 years 8 months ago
2002
ACM
We have developed a 3D sound system for headphones that allows real-time sound source and user displacement in a virtual acoustic environment. Because of a flexible design that us...
GLOBECOM
2007
IEEE
14 years 2 months ago
2007
IEEE
In this paper, cross-layer optimization approach is applied from video coding to the physical layer through Media Access Control (MAC) layer. We mainly focus on resource allocatio...