School of Computing

Authorisation using Attributes from Multiple Authorities

D.W. Chadwick

In Proceedings of Workshops on Enabling Technologies (WET-ICE 2006), pages 182-196, June 2006 Winner of Best Paper Award.

Abstract

As attribute based authorisation infrastructures such as XACML gain in popularity, linking together user attributes from multiple attribute authorities (AAs) is becoming a pressing problem. Current models and mechanisms do not support this linking, primarily because the user is known by different names in the different AAs. Furthermore, linking the attributes together poses a potential risk to the user�s privacy. This paper provides a model and protocol elements for linking AAs, service providers and user attributes together, under the sole control of the user, thereby maintaining the user�s privacy. The paper also shows how the model and protocol elements can be implemented using existing technologies, namely relational databases or LDAP directories, and the SAML protocol.

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Bibtex Record

@inproceedings{2412,
author = {Chadwick, D.W. },
title = {Authorisation using {A}ttributes from {M}ultiple {A}uthorities},
month = {June},
year = {2006},
pages = {182-196},
keywords = {determinacy analysis, Craig interpolants},
note = {Winner of Best Paper Award},
doi = {},
url = {http://www.cs.kent.ac.uk/pubs/2006/2412},
    publication_type = {inproceedings},
    submission_id = {10198_1155646759},
    booktitle = {Proceedings of Workshops on Enabling Technologies (WET-ICE 2006)},
}

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