123 search results - page 9 / 25 » D-algebra for composing access control policy decisions |
CSE
2009
IEEE
14 years 2 months ago
2009
IEEE
—Constraints are an important part of role-based access control policies. The safety or security of a system is maintained by enforcing constraints that are specified in the pol...
SP
1997
IEEE
13 years 11 months ago
1997
IEEE
A major drawback of existing access control systems is that they have all been developed with a specific access control policy in mind. This means that all protection requirement...
XMLSEC
2003
ACM
14 years 24 days ago
2003
ACM
Authorization systems today are increasingly complex. They span domains of administration, rely on many different authentication sources, and manage permissions that can be as com...
JLP
2011
13 years 2 months ago
2011
Formal languages for policy have been developed for access control and conformance checking. In this paper, we describe a formalism that combines features that have been developed...
CSE
2009
IEEE
14 years 2 months ago
2009
IEEE
Abstract—Vocabulary alignment is a main challenge in distributed access control as peers should understand each other’s policies unambiguously. Ontologies enable mutual underst...