Dynamic Access Control Policies - Specification and Verification

Date
2012
Authors
Janicke, Helge
Cau, A. (Antonio)
Siewe, Francois
Zedan, Hussein
Journal Title
Journal ISSN
ISSN
Volume Title
Publisher
Oxford University Press
Peer reviewed
Yes
Abstract
Security requirements deal with the protection of assets against unauthorized access (disclosure or modification) and their availability to authorized users. Temporal constraints of history-based access control policies are difficult to express naturally in traditional policy languages. We propose a compositional formal framework for the specification and verification of temporal access control policies for security critical systems in which history-based policies and other temporal constraints can be expressed. In particular, our framework allows for the specification of policies that can change dynamically in response to time or events enabling dynamic reconfiguration of the access control mechanisms. The framework utilizes a single well-defined formalism, interval temporal logic, for defining the semantics of these policies and to reason about them.We illustrate our approach with a detailed case study of an electronic paper submission system showing the compositional verification of their safety, liveness and information flow properties.
Description
Keywords
access control, policy, compositional specification, semantics, verification, interval temporal logic
Citation
Janicke, H. et al. (2012) Dynamic Access Control Policies - Specification and Verification. The Computer Journal, 56 (4), pp. 440-463
Research Institute
Cyber Technology Institute (CTI)