AAL and Static Conflict Detection in Policy

Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 10052)

Abstract

Security and privacy requirements in ubiquitous systems need a sophisticated policy language with features to express access restrictions and obligations. Ubiquitous systems involve multiple actors owning sensitive data concerning aspects such as location, discrete and continuous time, multiple roles that can be shared among actors or evolve over time. Policy consistency is an important problem in languages supporting these aspects. In this paper we present an abstract language (AAL) to specify most of these security and privacy features and compare it with XACML. We also classified the existing conflict detection mechanisms for XACML in dynamic, testing, or static detection. A thorough analysis of these mechanisms reveals that they have several weaknesses and they are not applicable in our context. We advocate for a classic approach using the notion of logical consistency to detect conflicts in AAL.

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Copyright information

© Springer International Publishing AG 2016

Authors and Affiliations

  • Jean-Claude Royer
    • 1
  • Anderson Santana De Oliveira
    • 2
  1. 1.Mines NantesNantesFrance
  2. 2.SAP Labs FranceMougins, Sophia AntipolisFrance

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