Conspiracy and Information Flow in the Take-Grant Protection Model



Bibliographic Information


The Take Grant Protection Model is a theoretic model of access control that captures the notion of information flow throughout the modelled system. This paper analyzes the problem of sharing information in the context of paths along which information can flow, and presents the number of actors necessary and sufficient to share information, in this model. The results are applied to information flow in a network to reduce the size of the set of actors who could have participated in the theft.


This is the manuscript version. The definitive version was published in Journal of Computer Security 1997, and is available at