Paper 2004/284 Original: eprint.iacr.org/2004/284 ↗

ON THE DEGREE OF HOMOGENEOUS BENT FUNCTIONS

Qingshu Meng
Huanguo Zhang
Min Yang
Jingsong Cui
Abstract

It is well known that the degree of a $2m$-variable bent function is at most $m.$ However, the case in homogeneous bent functions is not clear. In this paper, it is proved that there is no homogeneous bent functions of degree $m$ in $2m$ variables when $m>3;$ there is no homogenous bent function of degree $m-1$ in 2m variables when $m>4;$ Generally, for any nonnegative integer $k$, there exists a positive integer $N$ such that when $m>N$, there is no homogeneous bent functions of degree $m-k$ in $2m$ variables. In other words, we get a tighter upper bound on the degree of homogeneous bent functions. A conjecture is proposed that for any positive integer $k>1$, there exists a positive integer $N$ such that when $m>N$, there exists homogeneous bent function of degree $k$ in $2m$ variables.

Metadata
Available format(s)
PDF
Category
Secret-key cryptography
Publication info
Preprint.
History
2005-12-01: last updated
2004-11-03: published
Short URL
https://ia.cr/2004/284
License
https://creativecommons.org/licenses/by/4.0/

BibTeX

@misc{cryptoeprint:2004/284,
      author = {Qingshu Meng and Huanguo Zhang and Min Yang and Jingsong Cui},
      title = {ON THE DEGREE OF HOMOGENEOUS BENT FUNCTIONS},
      howpublished = {Cryptology {ePrint} Archive, Paper 2004/284},
      year = {2004},
      url = {https://eprint.iacr.org/2004/284}
}
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