A.L. Gelgor - Ph. D. (Eng.), Associate Professor, Department «Radioelectronic Facilities of Information Securi-ty», St. Petersburg State Polytechnical University E-mail: A_Gelgor@mail.ru A.I. Gorlov - Assistant, Department «Radioelectronic Facilities of Information Security», St. Petersburg State Polytechnical University E-mail: anton.gorlov@yandex.ru E.A. Popov - Ph. D. (Eng.), Associate Professor, Department «Radioelectronic Facilities of Information Securi-ty», St. Petersburg State Polytechnical University E-mail: popov@spbstu.ru