We present: (i) an encoding of Boxed Ambients into a variant of Safe Ambients; and (ii) a new type system for multi-level security of Safe Ambients in the style of Cardelli et al. (Information and Computation 177(2), 160–194 (2002)) and Dezani-Ciancaglini and Salvo (Security types for mobile safe ambients. In: Proceedings of ASIAN '00, LNCS 1961, pp. 215–236. Springer Verlag (2000)). Then, we show that the types, when applied to the encoded BA proceses, permits to accurately verify Mandatory Access Control policies of the source processes.
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