Self-adaptation and secure information flow in multiparty communications

Abstract : We present a comprehensive model of structured communications in which self-adaptation and security concerns are jointly addressed. More specifically, we propose a model of multiparty, self-adaptive communications with access control and secure information flow guarantees. In our model, multiparty protocols (choreographies) are described as global types; security violations occur when process implementations of protocol participants attempt to read or write messages of inappropriate security levels within directed exchanges. Such violations trigger adaptation mechanisms that prevent the violations to occur and/or to propagate their effect in the choreography. Our model is equipped with local and global adaptation mechanisms for reacting to security violations of different gravity; type soundness results ensure that the overall multiparty protocol is still correctly executed while the system adapts itself to preserve the participants' security.
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Submitted on : Saturday, August 20, 2016 - 2:45:46 AM
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Ilaria Castellani, Mariangiola Dezani-Ciancaglini, Jorge A. Perez. Self-adaptation and secure information flow in multiparty communications. Formal Aspects of Computing, Springer Verlag, 2016, 28 (4), pp.28. ⟨10.1007/s00165-016-0381-3⟩. ⟨hal-01354906⟩

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