Journal
FINITE FIELDS AND THEIR APPLICATIONS
Volume 93, Issue -, Pages -Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.ffa.2023.102339
Keywords
APN function; Budaghyan-Carlet hexanomials; Bivariate form; CCZ-equivalence
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In this article, the authors study a family of APN hexanomials F3 that satisfy a certain technical condition. They determine the number of APN hexanomials F3 and provide a theorem for their determination when i = 1. Additionally, they construct a family of APN functions in bivariate form and prove its CCZ-equivalence to F3.
Almost perfect nonlinear (APN) functions have good prop-erties and are widely applied in sequence design and coding theory. Budaghyan and Carlet (2008) [5] constructed a family of APN hexanomials F3 over F22m with a certain technical condition. In this article, we give the number of APN hex-anomials F3 and support a determination theorem for APN hexanomials F3 if i = 1. Moreover, we construct a family of APN functions in bivariate form and show it is CCZ-equivalent to F3. (c) 2023 Elsevier Inc. All rights reserved.
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