Cryptology ePrint Archive: Report 2015/885

A New Standard of Ukraine: The Kupyna Hash Function

Roman Oliynykov and Ivan Gorbenko and Oleksandr Kazymyrov and Victor Ruzhentsev and Oleksandr Kuznetsov and Yurii Gorbenko and Artem Boiko and Oleksandr Dyrda and Viktor Dolgov and Andrii Pushkaryov

Abstract: The Kupyna hash function was approved as the new Ukrainian standard DSTU 7564:2014 in 2015. Main requirements for it were both high security level and good performance of software implementation on general-purpose 64-bit CPUs. The new hash function uses Davies-Meyer compression function based on Even-Mansour cipher construction. Kupyna is built on the transformations of the Kalyna block cipher (Ukrainian standard DSTU 7624:2014). In this paper we present the adapted English translated specification of the Kupyna hash function as it is described in the national standard of Ukraine.

Category / Keywords: hash function, Kupyna, DSTU 7564:2014

Date: received 12 Sep 2015

Contact author: roliynykov at gmail com

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Version: 20150913:192412 (All versions of this report)

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