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IPMU
2010
Springer
13 years 6 months ago
Keeping Secrets in Possibilistic Knowledge Bases with Necessity-Valued Privacy Policies
Controlled Query Evaluation (CQE) is a logical framework for the protection of secrets in databases. In this article, we extend the CQE framework to possibilistic logic: knowledge ...
Lena Wiese
NCA
2006
IEEE
14 years 1 months ago
A Multipolicy Authorization Framework for Grid Security
A Grid system is a Virtual Organization that is composed of several autonomous domains. Authorization in such a system needs to be flexible and scalable to support multiple securi...
Bo Lang, Ian T. Foster, Frank Siebenlist, Rachana ...
SACMAT
2003
ACM
14 years 22 days ago
On context in authorization policy
Authorization policy infrastructures are evolving with the complex environments that they support. However, the requirements and technologies supporting context are not yet well u...
Patrick Drew McDaniel
CCS
2009
ACM
14 years 8 months ago
A conceptual framework for Group-Centric secure information sharing
In this paper, we propose a conceptual framework for developing a family of models for Group-Centric information sharing. The traditional approach to information sharing, characte...
Ram Krishnan, Ravi S. Sandhu, Jianwei Niu, William...
CSFW
2006
IEEE
14 years 1 months ago
Policy Analysis for Administrative Role Based Access Control
Role-Based Access Control (RBAC) is a widely used model for expressing access control policies. In large organizations, the RBAC policy may be collectively managed by many adminis...
Amit Sasturkar, Ping Yang, Scott D. Stoller, C. R....