Security analysis for temporal role based access control

Emre Uzun, Vijayalakshmi Atluri, Jaideep Vaidya, Shamik Sural, Anna Lisa Ferrara, Gennaro Parlato, P. Madhusudan

Research output: Contribution to journalArticlepeer-review


Providing restrictive and secure access to resources is a challenging and socially important problem. Among the many formal security models, Role Based Access Control (RBAC) has become the norm in many of today's organizations for enforcing security. For every model, it is necessary to analyze and prove that the corresponding system is secure. Such analysis helps understand the implications of security policies and helps organizations gain confidence on the control they have on resources while providing access, and devise and maintain policies. In this paper, we consider security analysis for the Temporal RBAC (TRBAC), one of the extensions of RBAC. The TRBAC considered in this paper allows temporal restrictions on roles themselves, userpermission assignments (UA), permission-role assignments (PA), as well as role hierarchies (RH). Towards this end, we first propose a suitable administrative model that governs changes to temporal policies. Then we propose our security analysis strategy, that essentially decomposes the temporal security analysis problem into smaller and more manageable RBAC security analysis sub-problems for which the existing RBAC security analysis tools can be employed. We then evaluate them from a practical perspective by evaluating their performance using simulated data sets.

Original languageEnglish (US)
Pages (from-to)961-996
Number of pages36
JournalJournal of Computer Security
Issue number6
StatePublished - 2014


  • Access Control
  • Safety analysis
  • Temporal RBAC
  • Temporal role hierarchy

ASJC Scopus subject areas

  • Software
  • Safety, Risk, Reliability and Quality
  • Hardware and Architecture
  • Computer Networks and Communications


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