1. The Bonch-Bruevich Saint-Petersburg State University of Telecommunications,Infocommunication Systems Department,Saint Petersburg,Russia
2. St. Petersburg Institute for Informatics and Automation of the Russian Academy of Sciences,Laboratory of Computer Security Problems Department,St. Petersburg,Russia
3. The Bonch-Bruevich Saint-Petersburg State University of Telecommunications,R&D Department,Saint Petersburg,Russia
4. The Bonch-Bruevich Saint-Petersburg State University of Telecommunications,Faculty of Fundamental Training,Saint Petersburg,Russia