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Cryptography and Communications

, Volume 11, Issue 1, pp 3–20 | Cite as

On APN functions L1(x3) + L2(x9) with linear L1 and L2

  • Irene VillaEmail author
Article
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Part of the following topical collections:
  1. Special Issue on Boolean Functions and Their Applications

Abstract

In a recent paper by L. Budaghyan, C. Carlet, and G. Leander (2009) it is shown that functions of the form L1(x3) + L2(x9), where L1 and L2 are linear, are a good source for construction of new infinite families of APN functions. In the present work we study necessary and sufficient conditions for such functions to be APN.

Keywords

Boolean function Almost perfect nonlinear CCZ-equivalence Nonlinearity 

Mathematics Subject Classification (2010)

94A60 06E30 20B40 

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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Department of InformaticsUniversity of BergenBergenNorway

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