On the EA-classes of known APN functions in small dimensions

Marco Calderini

Abstract

Recently Budaghyan, Calderini and Villa (2018) introduced a procedure for investigating if CCZ-equivalence can be more general than EA-equivalence together with inverse transformation (when applicable). In this paper, we show that it is possible to use this procedure for classifying, up to EA-equivalence, all known APN functions in dimension 6. We also give some discussion for dimension 7, 8 and 9. In particular, in these cases it is possible to give an upper bound on the EA-classes contained in the CCZ-classes of the known APN functions.

Metadata
Available format(s)
Category
Secret-key cryptography
Publication info
Preprint. Minor revision.
Keywords
EA-equivalenceCCZ-equivalenceBoolean functionsAPN
Contact author(s)
marco calderini @ uib no
History
2019-08-28: revised
2019-04-11: received
See all versions
Short URL
https://ia.cr/2019/369
License

CC BY

BibTeX

@misc{cryptoeprint:2019/369,
author = {Marco Calderini},
title = {On the EA-classes of known APN functions in small dimensions},
howpublished = {Cryptology ePrint Archive, Paper 2019/369},
year = {2019},
note = {\url{https://eprint.iacr.org/2019/369}},
url = {https://eprint.iacr.org/2019/369}
}

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