Ustimenko V. On new symbolic key exchange protocols and cryptosystems based on a hidden tame homomorphism . Dopov. Nac. akad. nauk Ukr. [Internet]. 2018 Oct. 28 [cited 2026 Jun. 19];(10):26-3. Available from: https://nasu-periodicals.org.ua/index.php/dp/article/view/3022