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Streebog (GOST R 34.11-2012) ¶

Algorithm type

Hash function

Digest size

256 and 512 bit

Blocksize

512 bit

Structure

Merkle-Damgård

Rounds

12

RFC

6986

Best attack

• Collisions: complexity 2¹⁷⁶, 2¹²⁸ memory for 9.5 rounds
• Preimage: complexity 2²⁶⁶, 2²⁵⁹ data

Wikipedia

article

Features:

• Replaces obsolete GOST R 34.11-94.
• End hash computation example of standard’s text contains string from "The Tale of Igor’s Campaign".

Implementations: here.