123 search results - page 18 / 25 » D-algebra for composing access control policy decisions |
DBSEC
2004
13 years 9 months ago
2004
The notion of Usage Control (UCON) has been introduced recently to extend traditional access controls by including three decision factors called authorizations, obligations, and co...
SACMAT
2003
ACM
14 years 24 days ago
2003
ACM
This paper presents an approach that uses special purpose RBAC constraints to base certain access control decisions on context information. In our approach a context constraint is...
CCS
2010
ACM
13 years 6 months ago
2010
ACM
GPS-enabled mobile devices are a quickly growing market and users are starting to share their location information with each other through services such as Google Latitude. Locati...
SIGCOMM
2009
ACM
14 years 2 months ago
2009
ACM
Business and economic considerations are driving the extensive use of service differentiation in Virtual Private Networks (VPNs) operated for business enterprises today. The resul...
INFOCOM
2008
IEEE
14 years 1 months ago
2008
IEEE
Abstract—Motivated by the increasing usage of wireless broadcast networks for multicast real-time applications like video, this paper considers a canonical real-time multicast sc...