Welcome to the resource topic for 2021/1078
Title:
Reflection, Rewinding, and Coin-Toss in EasyCrypt
Authors: Denis Firsov, Dominique Unruh
Abstract:In this paper we derive a suite of lemmas which allows users to internally reflect EasyCrypt programs into distributions which correspond to their denotational semantics (probabilistic reflection). Based on this we develop techniques for reasoning about rewinding of adversaries in EasyCrypt. (A widely used technique in cryptology.) We use our reflection and rewindability results to prove the security of a coin-toss protocol.
ePrint: https://eprint.iacr.org/2021/1078
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