Paper 2015/840 Original: eprint.iacr.org/2015/840 ↗
Related-key Impossible Differential Analysis of Full Khudra
Abstract
Khudra is a 18-round lightweight block cipher proposed by Souvik Kolay and Debdeep Mukhopadhyay in the SPACE 2014 conference which is applicable to Field Programmable Gate Arrays (FPGAs). In this paper, we obtain $2^{16}$ 14-round related-key impossible differentials of Khudra, and based on these related-key impossible differentials for 32 related keys, we launch an attack on the full Khudra with data complexity of $2^{63}$ related-key chosen-plaintexts, time complexity of about $2^{68.46}$ encryptions and memory complexity of $2^{64}$.
Metadata
- Available format(s)
PDF- Category
- Secret-key cryptography
- Publication info
- Preprint.
- History
- 2015-08-31: last updated
- 2015-08-31: published
- Short URL
- https://ia.cr/2015/840
- License
- https://creativecommons.org/licenses/by/4.0/
BibTeX
@misc{cryptoeprint:2015/840,
author = {Qianqian Yang and Lei Hu and Siwei Sun and Ling Song},
title = {Related-key Impossible Differential Analysis of Full Khudra},
howpublished = {Cryptology {ePrint} Archive, Paper 2015/840},
year = {2015},
url = {https://eprint.iacr.org/2015/840}
}