History-based access control with local policies

  • Authors:
  • Massimo Bartolett;Pierpaolo Degano;Gian Luigi Ferrari

  • Affiliations:
  • Dipartimento di Informatica, Università di Pisa, Italy;Dipartimento di Informatica, Università di Pisa, Italy;Dipartimento di Informatica, Università di Pisa, Italy

  • Venue:
  • FOSSACS'05 Proceedings of the 8th international conference on Foundations of Software Science and Computation Structures
  • Year:
  • 2005

Quantified Score

Hi-index 0.00

Visualization

Abstract

An extension of the λ-calculus is proposed, to study history-based access control. It allows for security policies with a possibly nested, local scope. We define a type and effect system that, given a program, extracts a history expression, i.e. a correct approximation to the set of histories obtainable at run-time. Validity of history expressions is non-regular, because the scope of policies can be nested. Nevertheless, a transformation of history expressions is presented, that makes verification possible through standard model checking techniques. A program will never fail at run-time if its history expression, extracted at compile-time, is valid.