Content-dependent access control

Authors:
Jonathan D. Moffett;Morris S. Sloman
Affiliations:
Imperial College of Science Technology and Medicine, Department of Computing, 180 Queen's Gate, London SW7 2BZ, UK;Imperial College of Science Technology and Medicine, Department of Computing, 180 Queen's Gate, London SW7 2BZ, UK
Venue:
ACM SIGOPS Operating Systems Review
Year:
1991

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Abstract

Content-dependent access control, where the access decisions depend upon the value of an attribute of the object itself, is required in many applications. However problems arise in an object-based environment, because obtaining the value of an object's attribute requires an operation upon the object. We discuss the conceptual and performance implications of introducing content-dependent access control, and suggest how the problems can be avoided in some cases by using a domain-based approach to access control.