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
P. A. Sapelnikov - Post-graduate Student, Chair of the Information Security and Communications Network, South-West State University, Kursk, Russia. E-mail: eveyinihiko@gmail.com
V. N. Zhiltsov - Student, Chair of the Information Security and Communications Network, South-West State University, Kursk, Russia. E-mail: eveyinihiko@gmail.com