Paper 2023/1302 Original: eprint.iacr.org/2023/1302 ↗
Revisiting the Differential Meet-In-The-Middle Cryptanalysis
Abstract
The differential meet-in-the-middle (MITM) attack is a new cryptanalysis technique proposed at Crypto 2023 recently. It led to greatly improved attacks on round-reduced SKINNY-128-384 and AES-256. In this paper, we revisit the differential MITM attack and propose several variants by absorbing techniques widely used in the classical differential attack. In particular, we present a new differential MITM attack that generalizes the basic differential MITM attack in several aspects. As for applications, we make refinements to the 24-round attack on SKINNY-128-384; on 12-round AES-256, we show that the classical differential attack and the generalized differential MITM attack perform better than the basic differential MITM attack.
Metadata
- Available format(s)
PDF- Category
- Secret-key cryptography
- Publication info
- Preprint.
- History
- 2023-09-01: last updated
- 2023-09-01: published
- Short URL
- https://ia.cr/2023/1302
- License
- https://creativecommons.org/licenses/by/4.0/
BibTeX
@misc{cryptoeprint:2023/1302,
author = {Ling Song and Qianqian Yang and Huimin Liu},
title = {Revisiting the Differential Meet-In-The-Middle Cryptanalysis},
howpublished = {Cryptology {ePrint} Archive, Paper 2023/1302},
year = {2023},
url = {https://eprint.iacr.org/2023/1302}
}