## CryptoDB

### Paper: On bent functions with zero second derivatives

Authors: Sugata Gangopadhyay URL: http://eprint.iacr.org/2007/077 Search ePrint Search Google It is proved that a bent function has zero second derivative with respect to $a$, $b$, $a \ne b$, if and only if it is affine on all the flats parallel to the two dimensional subspace $V = \langle a, b \rangle$.
##### BibTeX
@misc{eprint-2007-13359,
title={On bent functions with zero second derivatives},
booktitle={IACR Eprint archive},
keywords={Bent functions},
url={http://eprint.iacr.org/2007/077},
note={ sugata70@rediffmail.com 13573 received 27 Feb 2007, withdrawn 28 Feb 2007},