Paper 2011/171

On lower bounds on second--order nonliearities of bent functions obtained by using Niho power functions

Manish Garg and Sugata Gangopadhyay

Abstract

In this paper we find a lower bound of the second-order nonlinearities of Boolean bent functions of the form $f(x) = Tr_{1}^{n}(\alpha_{1}x^{d_{1}} + \alpha_{2}x^{d_{2}})$,where $d_1$ and $d_2$ are Niho exponents. A lower bound of the second-order nonlinearities of these Boolean functions can also be obtained by using a result proved by Li, Hu and Gao (eprint.iacr.org/2010 /009.pdf). It is demonstrated that for large values of $n$ the lower bound obtained in this paper are better than the lower bound obtained by Li, Hu and Gao.

Note: We have revised our paper. We are posting the revised version.

Metadata
Available format(s)
PDF
Category
Secret-key cryptography
Publication info
Published elsewhere. Unknown where it was published
Contact author(s)
gsugata @ gmail com
manishiitr8 @ gmail com
History
2011-07-07: revised
2011-04-04: received
See all versions
Short URL
https://ia.cr/2011/171
License
Creative Commons Attribution
CC BY

BibTeX

@misc{cryptoeprint:2011/171,
      author = {Manish Garg and Sugata Gangopadhyay},
      title = {On lower bounds on second--order nonliearities of bent functions obtained by using Niho power functions},
      howpublished = {Cryptology ePrint Archive, Paper 2011/171},
      year = {2011},
      note = {\url{https://eprint.iacr.org/2011/171}},
      url = {https://eprint.iacr.org/2011/171}
}
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