CCZ equivalence of power functions

Autor: Ulrich Dempwolff
Rok vydání: 2017
Předmět:
Zdroj: Designs, Codes and Cryptography. 86:665-692
ISSN: 1573-7586
0925-1022
DOI: 10.1007/s10623-017-0350-8
Popis: Let $$F\simeq {{\mathrm{GF}}}(p^n)$$FźGF(pn) be a finite field of characteristic p and $$p_k$$pk and $$p_\ell $$pl be power functions on F defined by $$p_k(x)=x^k$$pk(x)=xk and $$p_\ell (x)=x^\ell $$pl(x)=xl respectively. We show, that $$p_k$$pk and $$p_\ell $$pl are CCZ equivalent, if and only if there exists a positive integer $$0\le a< n$$0≤a
Databáze: OpenAIRE