Graphical Representation of Authorization Policies for Weighted Credentials

TitleGraphical Representation of Authorization Policies for Weighted Credentials
Publication TypeConference Paper
Year of Publication2006
AuthorsI. Agudo, J. Lopez, and J. A. Montenegro
Conference Name11th Australasian Conference on Information Security and Privacy (ACISP’06)
Series TitleLNCS
Conference LocationMelbourne, Australia
ISBN Number978-3-540-35458-1
ISSN Number0302-9743 (Print) 1611-3349 (Online)

This paper elaborates on a solution to represent authorization and delegation in a graphical way, allowing users to better interpret delegation relationships. We make use of Weighted Trust Graph (WTG) as an instrument to represent delegation and authorization, extending it to cope with more complicated concepts, and providing a graphical representation of the level of confidence that exists between two entities regarding a resource or attribute. We represent the level of confidence for each pair of entities as a point in an axis diagram, as a set of points, or as a set of triangular regions depending on the accuracy we need. Then, we use the same diagram to represent the set of acceptable confidence level, that we call authorization policy set. In this way, a single diagram can be used to decide about authorization, thus providing a powerful tool for systems in which interaction of users is needed.

Citation KeyAgudo2006a
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