The Rebound Attack and Subspace Distinguishers: Application to Whirlpool KU Leuven
© 2013, International Association for Cryptologic Research. We introduce the rebound attack as a variant of differential cryptanalysis on hash functions and apply it to the hash function Whirlpool, standardized by ISO/IEC. We give attacks on reduced variants of the 10-round Whirlpool hash function and compression function. Our results are collisions for 5.5 and near-collisions for 7.5 rounds on the hash function, as well as semi-free-start ...