On the rôle of abstract non-interference in language-based security

  • Authors:
  • Isabella Mastroeni

  • Affiliations:
  • Department of Computing and Information Sciences – Kansas State University, Manhattan, Kansas

  • Venue:
  • APLAS'05 Proceedings of the Third Asian conference on Programming Languages and Systems
  • Year:
  • 2005

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Abstract

In this paper, we illustrate the rôle of the notion of Abstract Non-Interference in language based security, by explaining how it models both the weakening of attackers’ observational capability, and the declassification of private information. Namely, we show that in abstract non-interference we model both attackers that can only observe properties of public data, and private properties that can or cannot flow. Moreover, we deepen the understanding of abstract non-interference by comparing it, by means of examples, with some the most interesting approaches to the weakening of non-interference, such as the PER model, robust declassification, delimited release and relaxed non-interference.