Paper 2022/1617 Original: eprint.iacr.org/2022/1617 ↗
A New Higher Order Differential of RAGHAV
Abstract
RAGHAV is a 64-bit block cipher proposed by Bansod in 2021. It supports 80-, and 128-bit secret keys. The designer evaluated its security against typical attack, such as differential cryptanalysis, linear cryptanalysis, and so on. On the other hand, it has not been reported the security of RAGHAV against higher order differential attack, which is one of the algebraic attacks. In this paper, we applied higher order differential cryptanalysis to RAGHAV. As a results, we found a new full-round higher order characteristic of RAGHAV using 1-st order differential. Exploiting this characteristic, we also show that the full-round of RAGHAV is attackable by distinguishing attack with 2 chosen plaintexts.
Metadata
- Available format(s)
PDF- Category
- Attacks and cryptanalysis
- Publication info
- Preprint.
- History
- 2022-11-21: last updated
- 2022-11-20: published
- Short URL
- https://ia.cr/2022/1617
- License
- https://creativecommons.org/licenses/by/4.0/
BibTeX
@misc{cryptoeprint:2022/1617,
author = {Naoki Shibayama and Yasutaka Igarashi},
title = {A New Higher Order Differential of RAGHAV},
howpublished = {Cryptology {ePrint} Archive, Paper 2022/1617},
year = {2022},
url = {https://eprint.iacr.org/2022/1617}
}