Paper 2018/635 Original: eprint.iacr.org/2018/635 ↗
On linear hulls in one round of DES
Abstract
At Indocrypt 2016, Ashur et al. showed that linear hulls are sometimes formed in a single round of a cipher (exemplifying on Simon ciphers) and showed that the success rate of an attack may be influenced by the quality of the estimation of one-round correlations. This paper improves the understanding regarding one-round linear hulls and trails, being dedicated to the study of one-round linear hulls of the DES cipher, more exactly of its $f$-function. It shows that, in the case of DES, the existence of one-round hulls is related to the number of active Sboxes and its correlation depends on a fixed set of key bits. All the ideas presented in this paper are followed by examples and are verified experimentally.
Metadata
- Available format(s)
PDF- Category
- Secret-key cryptography
- Publication info
- Preprint.
- History
- 2018-07-03: last updated
- 2018-07-03: published
- Short URL
- https://ia.cr/2018/635
- License
- https://creativecommons.org/licenses/by/4.0/
BibTeX
@misc{cryptoeprint:2018/635,
author = {Tomer Ashur and Raluca Posteuca},
title = {On linear hulls in one round of DES},
howpublished = {Cryptology {ePrint} Archive, Paper 2018/635},
year = {2018},
url = {https://eprint.iacr.org/2018/635}
}