Paper Info
Title
The Secret Structure of the S-Box of Streebog, Kuznechik and Stribob.
Abstract
The last hash function and block cipher standardized by the Russian standardization body (GOST) both use the same S-Box. It is also used by an independent CAESAR candidate. This transformation is only specified as a look up table and the reason behind its choice is unknown. We managed to reverse-engineer this S-Box and describe its unpublished structure. Our decomposition allows a much more efficient hardware implementation but the choice of the components used is puzzling from a cryptographic perspective. This extended abstract does not explain how we found this decomposition. We will describe our process in an extended version of this paper.
Year
Venue
Field
2015
IACR Cryptology ePrint Archive
S-box,Secret sharing,Block cipher,Computer security,Cryptography,Computer science,Verifiable secret sharing,Hash function,Shamir's Secret Sharing,Homomorphic secret sharing
DocType
Volume
Citations 
Journal
2015
2
PageRank 
References 
Authors
0.53
3
3
Name
Order
Citations
PageRank
Alex Biryukov12385198.94
Léo Perrin2549.85
Aleksei Udovenko322.56