Paper 2003/204

A Composition Construction of Bent-Like Boolean Functions from Quadratic Polynomials

ZENG Xiangyong and HU Lei

Abstract

In this paper, we generalize the composition construction of Khoo et al. for highly nonlinear Boolean functions. We utilize general quadratic forms instead of the trace map in the construction. The construction composes an n-variable Boolean function and an m-variable quadratic form over field with characteristic 2 to get an nm-variable Boolean function with beautiful spectrum property and a doubled algebraic degree. Especially, the method is suitable to construct functions with 3-valued spectra (bent-like functions) or ones with better spectra (near-bent functions). Our proof technique is based on classification of quadratic forms over finite fields and enumeration of solutions of quadratic equations. We also prove the p-ary analogy of these results for odd prime p.

Metadata
Available format(s)
PDF
Category
Foundations
Publication info
Published elsewhere. Unknown where it was published
Keywords
Boolean function
Contact author(s)
xyzeng2002 @ sina com
History
2003-09-29: received
Short URL
https://ia.cr/2003/204
License
Creative Commons Attribution
CC BY

BibTeX

@misc{cryptoeprint:2003/204,
      author = {ZENG Xiangyong and HU Lei},
      title = {A Composition Construction of Bent-Like Boolean Functions from Quadratic Polynomials},
      howpublished = {Cryptology {ePrint} Archive, Paper 2003/204},
      year = {2003},
      url = {https://eprint.iacr.org/2003/204}
}
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