Quantum One-Wayness of the Single-Round Sponge with Invertible Permutations

ePrint Report: Quantum One-Wayness of the Single-Round Sponge with Invertible Permutations

Joseph Carolan, Alexander Poremba

Sponge hashing is a novel class of cryptographic hash algorithms which underlies the current international hash function standard SHA-3. In a nutshell, a sponge function takes as input a bit-stream of any length and processes it via a simple iterative procedure: it repeatedly feeds each block of the input into a so-called block function, and then produces a short digest which consists of a subset …

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