Document Type thesis Author Name Mardziel, Piotr Email Address piotrm at gmail.com URN etd-050207-164735 Title Noninterference in Concurrent Game Structures Degree MS Department Computer Science Advisors Dan Dougherty, Advisor Micha Hofri, Reader Keywords security confidentiality noninterference Date of Presentation/Defense 2007-04-30 Availability unrestricted
Noninterference is a technique to formally capture the intuitive notion of information flow in the context of security. Information does not flow from one agent to another if the actions of the first have no impact on the future observations of the second. Various formulations of this notion have been proposed based on state machines and the removal of actions from action sequences. A new model known as the concurrent game structure [CGS] has recently been introduced for analysis multi-agent systems. We propose an alternate formulation of noninterference defined for systems modeled by CGS's and analyze the impact of the new approach on noninterference research based on existing definitions.
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