Paper 2022/1015 Original: eprint.iacr.org/2022/1015 ↗

Quantum Cryptanalysis of 5 rounds Feistel schemes and Benes schemes

Maya Chartouny
Jacques Patarin
Ambre Toulemonde
Abstract

In this paper, we provide new quantum cryptanalysis results on 5 rounds (balanced) Feistel schemes and on Benes schemes. More precisely, we give an attack on 5 rounds Feistel schemes in $\Theta(2^{2n/3})$ quantum complexity and an attack on Benes schemes in $\Theta(2^{2n/3})$ quantum complexity, where n is the number of bits of the internel random functions.

Metadata
Available format(s)
PDF
Category
Attacks and cryptanalysis
Publication info
Preprint.
History
2024-03-18: last updated
2022-08-05: published
Short URL
https://ia.cr/2022/1015
License
https://creativecommons.org/licenses/by/4.0/

BibTeX

@misc{cryptoeprint:2022/1015,
      author = {Maya Chartouny and Jacques Patarin and Ambre Toulemonde},
      title = {Quantum Cryptanalysis of 5 rounds Feistel schemes and Benes schemes},
      howpublished = {Cryptology {ePrint} Archive, Paper 2022/1015},
      year = {2022},
      url = {https://eprint.iacr.org/2022/1015}
}
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