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原文摘要

Interactive hashing, introduced by Ostrovsky, Venkatesan, and Yung [OVY93], is a building block in many cryptographic protocols, including perfectly hiding commitments from one-way permutations [NOVY92]. Its multi-output generalization is a key ingredient in constructions of statistical zero-knowledge arguments for NP and statistically hiding commitments from arbitrary one-way functions [NOV06,HR07]. In this note, we give a post-quantum security proof for this multi-output interactive hashing protocol with arbitrary relations.