### Automatic Search for a Maximum Probability Differential Characteristic in a Substitution-Permutation Network

Arnaud BANNIER, Nicolas BODIN, and Eric FILIOL

##### Abstract

The algorithm presented in this paper computes a maximum probability differential characteristic in a Substitution-Permutation Network (or SPN). Such characteristics can be used to prove that a cipher is practically secure against differential cryptanalysis or on the contrary to build the most effective possible attack. Running in just a few second on 64 or 128-bit SPN, our algorithm is an important tool for both cryptanalists and designers of SPN.

Note: This paper is the revised version of that presented at HICSS-48

Available format(s)
Category
Secret-key cryptography
Publication info
Published elsewhere. MINOR revision.HICSS-48
Keywords
Block ciphersCryptanalysis
Contact author(s)
filiol @ esiea fr
History
Short URL
https://ia.cr/2016/652

CC BY

BibTeX

@misc{cryptoeprint:2016/652,
author = {Arnaud BANNIER and Nicolas BODIN and Eric FILIOL},
title = {Automatic Search for a Maximum Probability Differential Characteristic in a Substitution-Permutation Network},
howpublished = {Cryptology ePrint Archive, Paper 2016/652},
year = {2016},
note = {\url{https://eprint.iacr.org/2016/652}},
url = {https://eprint.iacr.org/2016/652}
}

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