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Non-monotonic transformation of access rights

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2 Author(s)
Sandhu, R.S. ; Dept. of Inf. & Software Syst. Eng., Goerge Mason Univ., Fairfax, VA, USA ; Suri, G.S.

It is known that monotonic transformations unify a number of diverse access control mechanisms such as amplification, copy flags, separation of duties, and synergistic authorization. The importance and expressive power of nonmonotonic transformations is demonstrated. A formal model, called nonmonotonic transform (NMT), is defined. A distributed implementation of NMT is proposed using a client-server architecture. The implementation is remarkably simple and modular in concept. It is based on access control lists and allows for efficient and immediate revocation which could be partial, complete, selective, temporary, or permanent

Published in:

Research in Security and Privacy, 1992. Proceedings., 1992 IEEE Computer Society Symposium on

Date of Conference:

4-6 May 1992