Paper 2021/1134 Original: eprint.iacr.org/2021/1134 ↗
Some observations on ZUC-256
Abstract
In this report we study efficient binary approximations of the FSM of ZUC-256 with high correlation around $2^{-21.1}$ between the keystream words and the LFSR. We then map these approximations into a binary distinguisher with complexity around $2^{234}$. Thereafter, we convert to an approximation in the LFSR's field $\mathbb{Z}_p$ with correlation around $2^{-33.6}$. We share a number of observations and state open problems for further research and considerations.
Metadata
- Available format(s)
PDF- Category
- Secret-key cryptography
- Publication info
- Preprint.
- History
- 2021-09-17: last updated
- 2021-09-07: published
- Short URL
- https://ia.cr/2021/1134
- License
- https://creativecommons.org/licenses/by/4.0/
BibTeX
@misc{cryptoeprint:2021/1134,
author = {Alexander Maximov},
title = {Some observations on ZUC-256},
howpublished = {Cryptology {ePrint} Archive, Paper 2021/1134},
year = {2021},
url = {https://eprint.iacr.org/2021/1134}
}