V.A. Desnitsky - Research Scientist, St. Petersburg Institute for Informatics and Automation of the Russian Academy of Sciences (SPIIRAS). E-mail: desnitsky@comsec.spb.ru
I.V. Kotenko - Research Scientist, St. Petersburg Institute for Informatics and Automation of the Russian Academy of Sciences (SPIIRAS). E-mail: ivkote@comsec.spb.ru
A.A. Chechulin - Head of Laboratory, St. Petersburg Institute for Informatics and Automation of the Russian Academy of Sciences (SPIIRAS). E-mail: chechulin@comsec.spb.ru