[Resource Topic] 2016/652: Automatic Search for a Maximum Probability Differential Characteristic in a Substitution-Permutation Network

Welcome to the resource topic for 2016/652

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

Authors: Arnaud BANNIER, Nicolas BODIN, 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.

ePrint: https://eprint.iacr.org/2016/652

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