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  5. The approach to the creation of block scheduling keys for block symmetric cryptographic algorithm GOST 28147-89

The approach to the creation of block scheduling keys for block symmetric cryptographic algorithm GOST 28147-89

I. Lysenko, M. Hvozdynskyi
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Description: Approaches to the construction of scheduling procedures for keys of block symmetric crypto algorithms are considered. In the framework of one of them, an approach is proposed to the generation of a key schedule for the cryptographic algorithm GOST 28147-8 in order to increase its cryptographic strength. The proposed approach is a modification of the previously developed approach to the generation of the schedule of cryptographic algorithm keys GOST 28147-8 on the basis of the idea of the dependence of the choice of the key of the round on the current value of the data block being converted.


Keywords: Symmetric Block cryptographic algorithm, GOST 28147-89, keys schedule

Reference:
Lysenko, I.V. and Gvozdinskii, M.A. (2018), “Podkhod k formirovaniiu raspisaniia kliuchei dlia blochnogo simmetrichnogo kriptoalgoritma GOST 28147-89” [The approach to the creation of block scheduling keys for block symmetric cryptographic algorithm GOST 28147-89], Systems of Arms and Military Equipment, No. 1(53), pp. 163-167. https://doi.org/10.30748/soivt.2018.53.23.