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Title:
Linear approximations of the Flystel construction
Authors: Tim Beyne, Clémence Bouvier
Abstract:Using a purity theorem for exponential sums due to Rojas-Léon, we upper bound the absolute correlations of linear approximations of the Flystel construction used in Anemoi. This resolves open problem 7.1 in [Bouvier, 2023].
ePrint: https://eprint.iacr.org/2024/1465
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