Paper 2007/077

On bent functions with zero second derivatives

Sugata Gangopadhyay

Abstract

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 $V = \langle a, b \rangle$.

Metadata
Available format(s)
-- withdrawn --
Publication info
Published elsewhere. Unknown where it was published
Keywords
Bent functions
Contact author(s)
sugata70 @ rediffmail com
History
2007-03-01: withdrawn
2007-02-28: received
See all versions
Short URL
https://ia.cr/2007/077
License
Creative Commons Attribution
CC BY
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