Ihor V. Ruban, Anton О. Smirnov


The model of TCP-connections processing for steganographic data transfer in informationtelecommunication networks has been proposed in this article. The requirements for the modification of the TCP for correct working of the steganographic system has been defined. The functioning of steganographic system when forming and sending of steganographic containers, receiving and extracting of messages has been considered in details. The notions of informative and uninformative values, which calculated during of search of correlations the symbols of open-text (the payload of TCP) with the symbols of the message has been introduced. The model includes blind marking, the implementation of which corresponds to the end of the process of sending (receiving) messages. Justified the lack of time delays in the functioning of the modified TCP relative to its standard version


network steganography; steganographic container; initial sequence number.


Ruban I.V. (2015), An approach to cyber security support. Systemy obrobky informatsii, No. 11 (136), pp. 6–8.

Orlov V.P. (2012), Methods for secure data transmission in telecommunication networks: dissertation [Metodyi skryitoy peredachi informatsii v telekommunikatsionnyih setyah: dis. kand. techn. nauk], Samara, 166 p.

Ruban I.V., Smirnov A.A. (2015), The method of steganographic data transfer in information telecommunication networks based on the generation of ISN of tcp-connections. [Metod steganograficheskoy peredachi dannyih v informatsionnotelekommunikatsionnyih setyah na osnove generatsii ISN tcp-soedineniy], Systemy obrobky informatsii, No. 9 (134), pp. 99–101.

“Internet protocol - DARPA Internet Program Protocol Specification. RFC-793. TCP. USC / Information Sciences Institute, September 1981”, available at:

James L. Peterson (1984), Petri Net Theory and the Modeling of Systems: translation from English. [Teoriya setey Petri i modelirovanie sistem: Perevod s angliyskogo], Mir, Moscow, 264 p.

GOST Style Citations

Рубан И.В. An approach to cyber security support / И. В. Рубан // Системи обробки інформації. ‒ 2015. ‒ № 11 (136). ‒ С. 6‒8.

Орлов В. П. Методы скрытой передачи информации в телекоммуникационных сетях: дис. кандидата технических наук: 05.12.13 / Орлов Владимир Владимирович. – Самара, 2012. – 166 с.

Рубан И. В. Метод стеганографической передачи данных в информационно-телекоммуникационных сетях на основе генерации ISN tcp-соединений / И. В. Рубан, А. О. Смирнов // Системи обробки інформації. – Харків: ХУПС, 2015. ‒ № 9 (134). ‒ С. 99‒101.

“Internet protocol - DARPA Internet Program Protocol Specification” RFC-793. TCP. USC / Information Sciences Institute, September 1981 [Electr. resource]. – Accessed to:

Питерсон Дж. Теория сетей Петри и моделирование систем: Перевод с английского. – М. : Мир, 1984. – 264 с

ISSN 2410-7336 (Online)

ISSN 2311-7249 (Print)