Paper 2021/674
On the Effect of the Key-expansion Algorithm in Simon-like Ciphers
Jinyu Lu, Yunwen Liu, Tomer Ashur, and Chao Li
Abstract
In this work we investigate how the choice of the key-expansion algorithm and its interaction with the round function affect the resistance of Simon-like ciphers against rotational-XOR (RX) cryptanalysis. We observe that among the key-expansion algorithms we consider, Simon is most resistant, while Simeck is much less so. Implications on lightweight ciphers design are discussed and open questions are proposed.
Metadata
- Available format(s)
-
PDF
- Category
- Secret-key cryptography
- Publication info
- Preprint. MINOR revision.
- Keywords
- Rotational-XOR CryptanalysisSimeckSimonKey-expansion Algorithm
- Contact author(s)
-
univerlyw @ hotmail com
tomer ashur @ esat kuleuven be - History
- 2021-05-25: received
- Short URL
- https://ia.cr/2021/674
- License
-
CC BY
BibTeX
@misc{cryptoeprint:2021/674,
author = {Jinyu Lu and Yunwen Liu and Tomer Ashur and Chao Li},
title = {On the Effect of the Key-expansion Algorithm in Simon-like Ciphers},
howpublished = {Cryptology ePrint Archive, Paper 2021/674},
year = {2021},
note = {\url{https://eprint.iacr.org/2021/674}},
url = {https://eprint.iacr.org/2021/674}
}
