Reference : Bisimulations for Verifying Strategic Abilities with an Application to the ThreeBallo...
Scientific journals : Article
Engineering, computing & technology : Computer science
Security, Reliability and Trust
http://hdl.handle.net/10993/45850
Bisimulations for Verifying Strategic Abilities with an Application to the ThreeBallot Voting Protocol
English
Belardinelli, Francesco [> >]
Condurache, Rodica [> >]
Dima, Catalin [> >]
Jamroga, Wojciech mailto [University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > APSIA >]
Knapik, Michał [> >]
2021
Information and Computation
276
Article 104552
Yes (verified by ORBilu)
International
0890-5401
[en] Alternating-time Temporal Logic ; Voting Protocols ; Formal Verification
[en] We propose a notion of alternating bisimulation for strategic abilities under imperfect information. The bisimulation preserves formulas of ATL$^*$ for both the {\em objective} and {\em subjective} variants of the state-based semantics with imperfect information, which are commonly used in the modeling and verification of multi-agent systems. Furthermore, we apply the theoretical result to the verification of coercion-resistance in the ThreeBallot voting system, a voting protocol that does not use cryptography. In particular, we show that natural simplifications of an initial model of the protocol are in fact bisimulations of the original model, and therefore satisfy the same ATL$^*$ properties, including coercion-resistance. These simplifications allow the model-checking tool MCMAS to terminate on models with a larger number of voters and candidates, compared with the initial model.
Researchers
http://hdl.handle.net/10993/45850
10.1016/j.ic.2020.104552
https://home.ipipan.waw.pl/w.jamroga/papers/bisimulation21i+c.pdf
FnR ; FNR10415467 > Peter Y. A. Ryan > VoteVerif > Verification Of Voter-verifiable Voting Protocols > 01/09/2016 > 31/08/2019 > 2015

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