A Proposal on Enhancing XACML with Continuous Usage Control Features

  • Maurizio Colombo
  • Aliaksandr Lazouski
  • Fabio Martinelli
  • Paolo Mori
Conference paper

Abstract

Usage control (UCON) proposed by R. Sandhu et al. [8, 9] is an attributebased authorization model and its main novelties are mutability of attributes and continuity of control.

OASIS eXtensible Access Control Markup Language (XACML) [10] is a widely-used language to write authorization policies to protect resources in a distributed computing environment (e.g. Grid). The XACML policy specifies beforeusage authorization process optionally complemented with obligation actions fulfillment. By now, XACML has insufficient facilities to express continuous usage control afterwards an access was granted and started.

In this paper, we introduce U-XACML, a new policy language, which enhances the original XACML with the UCON novelties. We extend a syntax and semantics of the XACML policy to define mutability of attributes and continuity of control. We introduce an architecture to enforce the U-XACML policy.

Keywords

Assure Arena 

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Copyright information

© Springer US 2010

Authors and Affiliations

  • Maurizio Colombo
    • 1
  • Aliaksandr Lazouski
    • 2
  • Fabio Martinelli
    • 1
  • Paolo Mori
    • 1
  1. 1.Istituto di Informatica e TelematicaConsiglio Nazionale delle RicerchePisaItaly
  2. 2.Universita di PisaPisaItaly

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