Paper 2023/1449
Truncated Differential Cryptanalysis: New Insights and Application to QARMAv1-n and QARMAv2-64
Abstract
Truncated differential cryptanalyses were introduced by Knudsen in 1994. They are a well-known family of attacks that has arguably received less attention than some other variants of differential attacks. This paper gives some new insights into the theory of truncated differential attacks, specifically the provable security of SPN ciphers with MDS diffusion matrices against this type of attack. Furthermore, our study extends to various versions within the QARMA family of block ciphers, unveiling the only valid instances of single-tweak attacks on 10-round QARMAv1-64, 10-round QARMAv1-128, and 10- and 11-round QARMAv2-64. These attacks benefit from the optimal truncated differential distinguishers as well as some evolved key-recovery techniques.
Metadata
- Available format(s)
-
PDF
- Category
- Secret-key cryptography
- Publication info
- Preprint.
- Keywords
- CryptanalysisTruncated DifferentialsQARMAkey Recovery
- Contact author(s)
-
z_ahmadian @ sbu ac ir
a_khalesi @ sbu ac ir
dounia mfoukh @ inria fr
h moghimi @ mail sbu ac ir
maria naya_plasencia @ inria fr - History
- 2024-04-05: last of 5 revisions
- 2023-09-22: received
- See all versions
- Short URL
- https://ia.cr/2023/1449
- License
-
CC BY
BibTeX
@misc{cryptoeprint:2023/1449,
author = {Zahra Ahmadian and Akram Khalesi and Dounia M'foukh and Hossein Moghimi and María Naya-Plasencia},
title = {Truncated Differential Cryptanalysis: New Insights and Application to {QARMAv1}-n and {QARMAv2}-64},
howpublished = {Cryptology {ePrint} Archive, Paper 2023/1449},
year = {2023},
url = {https://eprint.iacr.org/2023/1449}
}
