Kuznechik (GOST R 34.12-2015) (GOST cryptography)

Next: GOST R 34.13-2015 cipher modes of operation, Up: GOST cryptography

Kuznechik (GOST R 34.12-2015) ¶

Algorithm type: Block cipher
Blocksize: 128 bit
Keysize: 256 bit
Structure: Substitution-permutation network (SPN)
Rounds: 10
RFC: 7801
Best attack: Complexity 2^140.3, 2^153.3 memory, 2¹¹³ data for 5 rounds
Wikipedia: article

Features:

Feistel network is used during key schedule.
Defined S-boxes was not created pseudorandomly, but with reverse engineered algorithm. However there is no proof that it reduces cipher’s strength.
Standard’s document also defines Magma cipher.

Implementations: here.