Partially APN functions with APN-like polynomial representations
Journal article, Peer reviewed
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OriginalversjonDesigns, Codes and Cryptography. 2020, 88, 1159–1177 10.1007/s10623-020-00739-6
In this paper we investigate several families of monomial functions with APN-like exponents that are not APN, but are partially 0-APN for infinitely many extensions of the binary field F2. We also investigate the differential uniformity of some binomial partial APN functions. Furthermore, the partial APN-ness for some classes of multinomial functions is investigated. We show also that the size of the pAPN spectrum is preserved under CCZ-equivalence.