A power APN function CCZ-equivalent to Kasami function in even dimension
| Autor: | Musukwa, Augustine, Sala, Massimiliano |
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| Rok vydání: | 2020 |
| Předmět: | |
| Druh dokumentu: | Working Paper |
| Popis: | Let $n$ be an even number such that $n\equiv 0 \pmod{4}$. We show that a power function $x^d$, with $d=2^{\frac{n+2}{2}}+2^{\frac{n-2}{2}}-1$, on $\mathbb{F}_{2^n}$ is an APN function of degree $n/2$ which is CCZ-equivalent to Kasami functions of degrees $n/2$ and $(n+4)/2$. Comment: My colleagues have identified some technical errors which require redress |
| Databáze: | arXiv |
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