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Management of Exceptions on Access Control Policies

  • J. G. Alfaro
  • F. Cuppens
  • N. Cuppens-Boulahia
Part of the IFIP International Federation for Information Processing book series (IFIPAICT, volume 232)

Abstract

The use of languages based on positive or negative expressiveness is very common for the deployment of security policies (i.e., deployment of permissions and prohibitions on firewalls through singlehanded positive or negative condition attributes). Although these languages may allow us to specify any policy, the single use of positive or negative statements alone leads to complex configurations when excluding some specific cases of general rules that should always apply. In this paper we survey such a management and study existing solutions, such as ordering of rules and segmentation of condition attributes, in order to settle this lack of expressiveness. We then point out to the necessity of full expressiveness for combining both negative and positive conditions on firewall languages in order to improve this management of exceptions on access control policies. This strategy offers us a more efficient deployment of policies, even using fewer rules.

Keywords

Access Control Security Policy Match Strategy Access Control Policy Default Policy 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© International Federation for Information Processing 2007

Authors and Affiliations

  • J. G. Alfaro
    • 1
    • 2
  • F. Cuppens
    • 1
  • N. Cuppens-Boulahia
    • 1
  1. 1.GET/ENST-Bretagne35576 Cesson SévignéFrance
  2. 2.Universitat Oberta de Catalunya08018 BarcelonaSpain

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