Paper 2016/1137
New Impossible Differential Characteristic of SPECK64 using MILP
HoChang Lee, HyungChul Kang, Deukjo Hong, Jaechul Sung, and Seokhie Hong
Abstract
Impossible differential attack is one of powerful methods for analyzing block ciphers. When designing block ciphers, it must be safe for impossible differential attacks. In case of impossible differential attack, the attack starts from finding the impossible differential characteristic. However, in the case of the ARX-based block cipher, these analyzes were difficult due to the addition of modulus. In this paper, we introduce 157 new six-round impossible differential characteristics of ARX-basef block cipher, SPECK64, using Mixed Integer Linear Programming (MILP) base impossible differential characteristic search proposed by Cui [3] etc.
Note: I applied some other method and got some more results.
Metadata
- Available format(s)
-
PDF
- Publication info
- Preprint. MINOR revision.
- Keywords
- MILPImpossible differentialARX CipherSPECK64
- Contact author(s)
- lhc254 @ gmail com
- History
- 2016-12-21: revised
- 2016-12-14: received
- See all versions
- Short URL
- https://ia.cr/2016/1137
- License
-
CC BY
BibTeX
@misc{cryptoeprint:2016/1137,
author = {HoChang Lee and HyungChul Kang and Deukjo Hong and Jaechul Sung and Seokhie Hong},
title = {New Impossible Differential Characteristic of {SPECK64} using {MILP}},
howpublished = {Cryptology {ePrint} Archive, Paper 2016/1137},
year = {2016},
url = {https://eprint.iacr.org/2016/1137}
}
