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Paragon: Programming with Secured Information Flow

David Sands (Chalmers University of Technology)
Salles Petri/Turing - Campus de Beaulieu, bâtiment 12 F - Rennes

Conventional security policies for software applications are adequate for managing concerns on the level of access control. But standard abstraction mechanisms of mainstream programming languages are not sufficient to express how information is allowed to flow between resources once access to them has been obtained. In practice we believe that such control - information flow control - is needed to manage the end-to-end security properties of applications. In this talk I present Paragon, a Java-based language with first-class support for static checking of information flow control policies.

Paragon policies are specified in a logic-based policy language. By virtue of their explicitly stateful nature, these policies appear to be more expressive and flexible than those used in previous languages with information-flow support.

Joint work with Niklas Broberg and Bart van Delft (http://www.cse.chalmers.se/research/group/paragon/?p=Publications).