The Set and Function Approach to Modeling Authorization in
Tatyana Ryutov and Clifford Neuman
Information Sciences Institute
University of Southern California
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We present a new model that provides clear and precise semantics for
authorization. The semantics is independent from underling security mechanisms
and is separate from implementation.
The model is capable of representing existing access control mechanisms.
Our approach is based on set and function formalism. We focus our
attention on identifying issues and use our model as a general
basis to investigate the issues.