Paper 2020/1458 Original: eprint.iacr.org/2020/1458 ↗
Analysis of Ascon, DryGASCON, and Shamash Permutations
Abstract
Ascon, DryGASCON, and Shamash are submissions to NIST's lightweight cryptography standardization process and have similar designs. We analyze these algorithms against subspace trails, truncated differentials, and differential-linear distinguishers. We provide probability one 4-round subspace trails for DryGASCON-256, 3-round subspace trails for \DryGASCON-128, and 2-round subspace trails for \Shamash permutations. Moreover, we provide the first 3.5-round truncated differential and 5-round differential-linear distinguisher for DryGASCON-128. Finally, we improve the data and time complexity of the 4 and 5-round differential-linear attacks on Ascon.
Metadata
- Available format(s)
PDF- Category
- Secret-key cryptography
- Publication info
- Preprint.
- History
- 2020-11-19: last updated
- 2020-11-19: published
- Short URL
- https://ia.cr/2020/1458
- License
- https://creativecommons.org/licenses/by/4.0/
BibTeX
@misc{cryptoeprint:2020/1458,
author = {Cihangir Tezcan},
title = {Analysis of Ascon, DryGASCON, and Shamash Permutations},
howpublished = {Cryptology {ePrint} Archive, Paper 2020/1458},
year = {2020},
url = {https://eprint.iacr.org/2020/1458}
}