Chernov ПК, Shkaraputa АП. Modification of the algorithm based on the Feistel network by adding an element of randomness into the encryption key. Вест. ПГУ. Мат. Мех. Инф. [Internet]. 2021 Dec. 13 [cited 2024 May 18];(1(52):81-8. Available from: http://press.psu.ru/index.php/Math/article/view/5037