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We construct a constant round resettably-sound zero knowledge argument of knowledge based on black-box use of any one-way function. Resettable-soundness was introduced by Barak, Goldreich, Goldwasser and Lindell [FOCS 01] and is a strengthening of the soundness requirement in interactive proofs demanding that soundness should hold even if the malicious prover is allowed to “reset” and “restart” the verifier. In their work they show that resettably-sound ZK arguments require nonblack- box simulation techniques, and also provide the first construction based on the breakthrough simulation technique of Barak [FOCS 01]. All known implementations of Barak’s non-black-box technique required non-black-box use of a collision-resistance hash-function (CRHF).

Resettably Sound Zero-Knowledge Arguments from OWFs - The (Semi) Black-Box Way