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SACMAT
2006
ACM
16 years 4 days ago
The secondary and approximate authorization model and its application to Bell-LaPadula policies
We introduce the concept, model, and policy-specific algorithms for inferring new access control decisions from previous ones. Our secondary and approximate authorization model (...
Jason Crampton, Wing Leung, Konstantin Beznosov
IEEEARES
2010
IEEE
16 years 1 months ago
Strategies for Reducing Risks of Inconsistencies in Access Control Policies
—Managing access control policies is a complex task. We argue that much of the complexity is unnecessary and mostly due to historical reasons. There are number of legacy policy s...
Bernard Stepien, Stan Matwin, Amy P. Felty
186
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SACMAT
2009
ACM
16 years 21 days ago
Access control policy combining: theory meets practice
Many access control policy languages, e.g., XACML, allow a policy to contain multiple sub-policies, and the result of the policy on a request is determined by combining the result...
Ninghui Li, Qihua Wang, Wahbeh H. Qardaji, Elisa B...
CHI
2009
ACM
16 years 6 months ago
Real life challenges in access-control management
In this work we ask the question: what are the challenges of managing a physical or file system access-control policy for a large organization? To answer the question, we conducte...
Lujo Bauer, Lorrie Faith Cranor, Robert W. Reeder,...
CONCUR
2001
Springer
15 years 10 months ago
Reasoning about Security in Mobile Ambients
The paper gives an assessment of security for Mobile Ambients, with specific focus on mandatory access control (MAC) policies in multilevel security systems. The first part of th...
Michele Bugliesi, Giuseppe Castagna, Silvia Crafa