V. P. Dobritsa - Dr.Sc. (Phys.-Math.), Professor, Chair of the information Security and Communications Network, South-west State University, Kursk, Russia. E-mail: dobritsa@mail.ru
N. S. Ualiyev - Ph.D. (Phys.-Math.), Associate Professor, Chair of Information Technology, Zhetysu State University named after Ilyas Zhansugurov, Kazakhstan, Taldykorgan, Russia. E-mail: n.ualiyev@gmail.com
D. N. Nurgabyl - Dr.Sc. (Phys.-Math.), Professor, Director, Institute of Postgraduate Education and Retraining, Zhetysu State University named after Ilyas Zhansugurov, Kazakhstan, Taldykorgan, Russia. E-mail: schewelew@mail.ru