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- Title
A New Mixture Differential Cryptanalysis on Round-Reduced AES.
- Authors
Qiao, Kexin; Cheng, Junjie; Ou, Changhai
- Abstract
AES is the most widely used secret-key cryptosystem in industry, and determining the security of AES is a central problem in cryptanalysis. The mixture differential property proposed in Eurocrypt 2017 is an essential property to setup state-of-the-art key recovery attacks on some round-reduced versions of AES. In this paper, we exploit mixture differential properties that are automatically deduced from a mixed integer linear programming (MILP)-based model to extend key recovery attacks on AES. Specifically, we modify the MILP model toolkit to produce all mixture trails explicitly and test a 5-round secret-key mixture differential distinguisher on small-scale AES experimentally. Moreover, we utilize this distinguisher to do a key recovery attack on 6-round AES-128 that outperforms previous work in the same fashion. We also for the first time utilize a 6-round AES secret-key distinguisher to set up a key recovery attack on 7-round AES-192. This work is a new yet simple cryptanalysis on AES by exploiting mixture differential properties.
- Subjects
MIXED integer linear programming; CRYPTOGRAPHY; CRYPTOSYSTEMS
- Publication
Mathematics (2227-7390), 2022, Vol 10, Issue 24, p4736
- ISSN
2227-7390
- Publication type
Article
- DOI
10.3390/math10244736