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Context-Dependent Access Control for Web-Based Collaboration Environments with Role-Based Approach

  • Ruben Wolf
  • Markus Schneider
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 2776)

Abstract

Controlling access to resources is one of the most important protection goals for web-based collaboration environments in practice. In general, access control requires identification of subjects that intend to use resources. Today, there are several identification mechanisms for subjects, providing different security levels. However, some of them are only suitable to be used in specific environments. In this paper we consider access control to web-based collaboration environments where access control also depends on the actually used identification mechanism as a context-dependent parameter. Furthermore, we show how to model this kind of context-dependent access control for web-based collaboration environments by using role-based concepts. Additionally, we present how complex role hierarchies in the context-dependent case can be generated from basic role hierarchies. This is achieved by applying direct products as a special arithmetic operation over role hierarchies and context hierarchies.

Keywords

Access Control Security Policy Access Control Model Context Parameter Access Control System 
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

© Springer-Verlag Berlin Heidelberg 2003

Authors and Affiliations

  • Ruben Wolf
    • 1
  • Markus Schneider
    • 1
  1. 1.Fraunhofer Gesellschaft (FhG)Institute for Secure Telecooperation (SIT)DarmstadtGermany

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