Paper 2024/1072 Original: eprint.iacr.org/2024/1072 ↗

A Study of Partial Non-Linear Layers with DEFAULT and BAKSHEESH

Anubhab Baksi
Abstract

In this work, we take a look at the two recently proposed block ciphers, DEFAULT and BAKSHEESH, both of which are descendent of another block cipher named GIFT. We show that both ciphers can be interpreted within the partial non-linear layer category, thanks to the SBoxes having at least one non-trivial linear structure. We also reevaluate the security claim of DEFAULT.

Metadata
Available format(s)
PDF
Category
Secret-key cryptography
Publication info
Preprint.
History
2024-07-01: last updated
2024-07-01: published
Short URL
https://ia.cr/2024/1072
License
https://creativecommons.org/licenses/by-nc-nd/4.0/

BibTeX

@misc{cryptoeprint:2024/1072,
      author = {Anubhab Baksi},
      title = {A Study of Partial Non-Linear Layers with DEFAULT and BAKSHEESH},
      howpublished = {Cryptology {ePrint} Archive, Paper 2024/1072},
      year = {2024},
      url = {https://eprint.iacr.org/2024/1072}
}
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