Model Checking Techniques for Security Policies in Distributed Collaboration
نویسندگان
چکیده
In this paper, we present the hallenges for model he king se urity poli ies in distributed ollaboration systems. The spe i ation of a ollaboration system is onverted to nite state based veri ation models and are veri ed using a model he ker for orre tness and onsisten y. The main hallenge in nite state based model he king is the state spa e explosion. A related problem for verifying se urity properties is to nd a minimal number of parti ipants whose identities need to be modeled during veri ation. The goal of this paper if to nd the minimal number of parti ipants that is suÆ ient to verify a given set of requirements. Importantly, we ensure that the requirements are not violated if more than the minimal number of users parti ipate in the ollaboration.
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