Paper 2009/053 Original: eprint.iacr.org/2009/053 ↗

New commutative semifields defined by PN multinomials

Lilya Budaghyan
Tor Helleseth
Abstract

We introduce infinite families of perfect nonlinear Dembowski-Ostrom multinomials over $F_{p^{2k}}$ where $p$ is any odd prime. We prove that for $k$ odd and $p\ne3$ these PN functions define new commutative semifields (in part by studying the nuclei of these semifields). This implies that these functions are CCZ-inequivalent to all previously known PN mappings.

Metadata
Available format(s)
PDF
Category
Foundations
Publication info
Preprint.
History
2009-02-03: last updated
2009-02-03: published
Short URL
https://ia.cr/2009/053
License
https://creativecommons.org/licenses/by/4.0/

BibTeX

@misc{cryptoeprint:2009/053,
      author = {Lilya Budaghyan and Tor Helleseth},
      title = {New commutative semifields defined by PN multinomials},
      howpublished = {Cryptology {ePrint} Archive, Paper 2009/053},
      year = {2009},
      url = {https://eprint.iacr.org/2009/053}
}
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