Dynamic Access Control Policies - Specification and Verification

Date

2012

Advisors

Journal Title

Journal ISSN

ISSN

Volume Title

Publisher

Oxford University Press

Type

Article

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

Rights

Research Institute

Cyber Technology Institute (CTI)