Krip: високошвидкісний апаратно-орієнтований потоковий шифр, побудований на основі неавтономного нелінійного регістру зсуву / Ковальчук Л. В., Коряков І. В., Олексійчук А. М. (2023)
Ukrainian

English  Cybernetics and Systems Analysis   /     Issue (2023, 59 (1))

Kovalchuk L.V., Koriakov I.V., Alekseychuk A.N.
Krip: High-speed hardware-oriented stream cipher based on non-autonomous non-linear shift register

A stream cipher based on a non-autonomous nonlinear shift register of length 2 over the alphabet of 2256 symbols is proposed. This register works similarly to the Feistel cipher with the round function used in the Kalyna encryption algorithm. It is shown that with the security level 2256, the Krip cipher provides a fourfold gain in performance over the accepted standard of stream encryption in Ukraine and almost twentyfold when compared to the modern encryption algorithm Espresso. © 2023, Springer Science+Business Media, LLC, part of Springer Nature.

Keywords: algebraic attacks, correlation attacks, Espresso, Feistel scheme, generator of pseudorandom sequences, Krip, nonlinear shift register, stream cipher, Strumok, Computer hardware description languages, Cryptography, Algebraic attack, Correlation attack, Espresso, Feistel scheme, Generator of pseudorandom sequence, Krip, Nonlinear shift register, Pseudorandom sequences, Stream Ciphers, Strumok, Shift registers


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Cite:
Kovalchuk L.V., Koriakov I.V., Alekseychuk A.N. (2023). Krip: High-speed hardware-oriented stream cipher based on non-autonomous non-linear shift register. Cybernetics and Systems Analysis, 59 (1), 21–32. doi: https://doi.org/10.1007/s10559-023-00538-6 http://jnas.nbuv.gov.ua/article/UJRN-0001380501 [In Ukrainian].


 

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