[Resource Topic] 2005/299: Nonlinearity of the Round Function

Welcome to the resource topic for 2005/299

Title:
Nonlinearity of the Round Function

Authors: Marcin Kontak, Janusz Szmidt

Abstract:

In the paper we present the results which enable to calculate the nonlinearity of round functions with quite large dimensions e.g. 32x32 bits, which are used in some block ciphers. This can be applied to improve the resistance of these ciphers against linear cryptanalysis. The involved method of calculating the nonlinearity is rested on the notion of multi-dimensional Walsh transform. At the end we give the application to linear cryptanalysis of the TGR block cipher.

ePrint: https://eprint.iacr.org/2005/299

See all topics related to this paper.

Feel free to post resources that are related to this paper below.

Example resources include: implementations, explanation materials, talks, slides, links to previous discussions on other websites.

For more information, see the rules for Resource Topics .