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Five examples of web-services for illustrating requirements for security architecture

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4 Author(s)
Addie, R.G. ; Dept. of Math. & Comput., Univ. of Southern Queensland, Toowoomba, QLD, Australia ; Moffatt, S. ; Dekeyser, S. ; Colman, A.

The tension caused by the need for expressive power when formulating security rules and the need to keep computational complexity low when undertaking the necessary access rule evaluations is a major challenge in the formulation of good security architecture. This paper provides five examples of security in web services. which illustrate this tension. These examples highlight the need for more expressiveness in the rules used to express policies in three cases, and in the other the fact that XACML appears to have nearly adequate expressiveness without undue complexity. Each example is expressed first informally, by describing a service which could concievably be provided in a web services architecture, then the example is also outlined using either XACML, first order logic or both.

Published in:

Data and Knowledge Engineering (ICDKE), 2011 International Conference on

Date of Conference:

6-6 Sept. 2011

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