Paper 2019/1249
Related-key Attack on 5-Round Kuznyechik
Vitaly Kiryukhin
Abstract
The first related-key attack on 3-round (of 9) Kuznyechik with 2-round (of 8) key schedule was presented in CTCrypt'18. This article describes a related-key attack on 5-round cipher with the same key schedule. The presented one also has a practical complexity ($2^{32}$ operations, $2^{30}$ memory, $2^{16}$ related keys) and verified in practice. We obtained result due to the simultaneous use of the integral properties of the cipher transformations and the key schedule.
Metadata
- Available format(s)
-
PDF
- Category
- Secret-key cryptography
- Publication info
- Published elsewhere. CTCrypt 2019, 8th Workshop on Current Trends in Cryptology
- Keywords
- Kuznyechikrelated-key attackintegral cryptanalysis
- Contact author(s)
- vitaly kiryukhin @ infotecs ru
- History
- 2019-10-28: received
- Short URL
- https://ia.cr/2019/1249
- License
-
CC BY
BibTeX
@misc{cryptoeprint:2019/1249, author = {Vitaly Kiryukhin}, title = {Related-key Attack on 5-Round Kuznyechik}, howpublished = {Cryptology ePrint Archive, Paper 2019/1249}, year = {2019}, note = {\url{https://eprint.iacr.org/2019/1249}}, url = {https://eprint.iacr.org/2019/1249} }