Paper 2010/435 Original: eprint.iacr.org/2010/435 ↗
The Improbable Differential Attack: Cryptanalysis of Reduced Round CLEFIA
Abstract
In this paper we present a new statistical cryptanalytic technique that we call improbable differential cryptanalysis which uses a differential that is less probable when the correct key is used. We provide data complexity estimates for this kind of attacks and we also show a method to expand impossible differentials to improbable differentials. By using this expansion method, we cryptanalyze 13, 14, and 15-round CLEFIA for the key sizes of length 128, 192, and 256 bits, respectively. These are the best cryptanalytic results on CLEFIA up to this date.
Metadata
- Available format(s)
PDF- Category
- Secret-key cryptography
- Publication info
- Preprint.
- History
- 2010-10-16: last updated
- 2010-08-13: published
- Short URL
- https://ia.cr/2010/435
- License
- https://creativecommons.org/licenses/by/4.0/
BibTeX
@misc{cryptoeprint:2010/435,
author = {Cihangir Tezcan},
title = {The Improbable Differential Attack: Cryptanalysis of Reduced Round CLEFIA},
howpublished = {Cryptology {ePrint} Archive, Paper 2010/435},
year = {2010},
url = {https://eprint.iacr.org/2010/435}
}