Paper 2013/097 Original: eprint.iacr.org/2013/097 ↗
Biclique Cryptanalysis of the Full-Round KLEIN Block Cipher
Abstract
In this paper we present a biclique attack on the newly proposed block cipher KLEIN-64. We first introduce some weaknesses of the diffusion layer and key schedule of this algorithm. Then we exploit them to present a full round attack on KLEIN-64 using an asymmetric biclique. The (worst case) computations and data complexity of this attack are 2^{62.84} and 2^{39}, respectively. A modified version of this attack is also presented which is slightly faster at the expense of the data required.
Metadata
- Available format(s)
PDF- Category
- Secret-key cryptography
- Publication info
- Preprint.
- History
- 2013-02-27: last updated
- 2013-02-27: published
- Short URL
- https://ia.cr/2013/097
- License
- https://creativecommons.org/licenses/by/4.0/
BibTeX
@misc{cryptoeprint:2013/097,
author = {Zahra Ahmadian and Mahmoud Salmasizadeh and Mohammad Reza Aref},
title = {Biclique Cryptanalysis of the Full-Round KLEIN Block Cipher},
howpublished = {Cryptology {ePrint} Archive, Paper 2013/097},
year = {2013},
url = {https://eprint.iacr.org/2013/097}
}