Erratum to: Des. Codes Cryptogr. (2012) 62:209–223 DOI 10.1007/s10623-011-9506-0

Proposition 4 in the original publication is wrongly worded and it should be as follows:

Proposition 4

Let \(F,G:{\mathbb {F}}^{m}\rightarrow {\mathbb {F}}^{m}\) be two APN functions such that \(F(\mathbf{0}) = G(\mathbf{0})=\mathbf{0}\). If \(F\) and \(G\) are \(CCZ\) equivalent through a permutation \(P\) fulfilling \(FP = PG\), then \(F\) is \(AF\) if and only if \(G\) is \(AF\).

The above rewording does not affect any other result given in the paper.