Secure Multiparty Sessions with Topics

Ilaria Castellani
(INRIA Sophia Antipolis, France)
Mariangiola Dezani-Ciancaglini
(Università di Torino, Italia)
Ugo de'Liguoro
(Università di Torino, Italia)

Multiparty session calculi have been recently equipped with security requirements, in order to guarantee properties such as access control and leak freedom. However, the proposed security requirements seem to be overly restrictive in some cases. In particular, a party is not allowed to communicate any kind of public information after receiving a secret information. This does not seem justified in case the two pieces of information are totally unrelated. The aim of the present paper is to overcome this restriction, by designing a type discipline for a simple multiparty session calculus, which classifies messages according to their topics and allows unrestricted sequencing of messages on independent topics.

In Dominic Orchard and Nobuko Yoshida: Proceedings of the Ninth workshop on Programming Language Approaches to Concurrency- and Communication-cEntric Software (PLACES 2016), Eindhoven, The Netherlands, 8th April 2016, Electronic Proceedings in Theoretical Computer Science 211, pp. 1–12.
Published: 17th June 2016.

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