Paper 2019/374
Probability 1 Iterated Differential in the SNEIK Permutation
Léo Perrin
Abstract
SNEIK is a permutation at the core of a submission to the NIST lightweight cryptography project. In this note, we exhibit an iterated probability 1 differential in this permutation. However, it is still unclear if this differential can be used to construct attacks against the permutation in a mode, e.g., against the hash function SNEIKHA. We also suggest a simple fix: adding a 32-bit rotation in one tap prevents this issue.
Metadata
- Available format(s)
-
PDF
- Category
- Secret-key cryptography
- Publication info
- Preprint. MINOR revision.
- Keywords
- SNEIKNIST lightweight cryptography projectDifferential CryptanalysisARXpermutation
- Contact author(s)
- leo perrin @ inria fr
- History
- 2019-04-14: received
- Short URL
- https://ia.cr/2019/374
- License
-
CC BY
BibTeX
@misc{cryptoeprint:2019/374,
author = {Léo Perrin},
title = {Probability 1 Iterated Differential in the {SNEIK} Permutation},
howpublished = {Cryptology {ePrint} Archive, Paper 2019/374},
year = {2019},
url = {https://eprint.iacr.org/2019/374}
}