Welcome to the resource topic for 2008/071
Title:
Blockcipher Based Hashing Revisited
Authors: Martijn Stam
Abstract:We revisit the rate-1 blockcipher based hash functions as first studied by Preneel, Govaerts and Vandewalle (Crypto’93) and later extensively analysed by Black, Rogaway and Shrimpton (Crypto’02). We analyze a further generalization where any pre- and postprocessing is considered. By introducing a new tweak to earlier proof methods, we obtain a simpler proof that is both more general and more tight than existing results. As added benefit, this also leads to a clearer understanding of the current classification of rate-1 blockcipher based schemes as introduced by Preneel et al. and refined by Black et al.
ePrint: https://eprint.iacr.org/2008/071
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