Welcome to the resource topic for 2019/1249
Title:
Related-key Attack on 5-Round Kuznyechik
Authors: 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.
ePrint: https://eprint.iacr.org/2019/1249
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