M.V. Shakursky - Ph. D. (Eng.), Associate Professor, Department «Information and Electronic Service», Volga Region State University of Service (Togliatti). E-mail: M.Sakurskiy@gmail.com V.K. Shakursky - Dr. Sc. (Eng.), Professor, Department «Power Supply and Electrotechnics», Togliatti state university. E-mail: Shakurskiy@mail.ru

In article discussed steganographic system based on contraction mapping method. Shown mathematical models of direct and inversed steganographic transform. Considered equation systemn of sensitivity to key variation. Obtained condition to perform maximal sensitivity of system. Analysis of obtained condition in channels with code length limitation is made. It is shown, that in data transfer systems with a lot of quantizing levels, using of the method allows realization of effective data hiding.

 

1. Patent na izobretenie № 2382502 RF. Sposob mnogokanalnojj konfidencialnojj peredachi informacii / Pavlov A.N., Anishhenko V.S.// (Rossija).; zajavl. 14.05.2008; opubl. 20.02.2010. MPK H04L.
2. Patent na izobretenie №2493659 RF. Sposob zashhishhennojj peredachi informacii s pomoshhju impulsnogo kodirovanija / Nazimov A.I., Pavlovv A.N. Zajavl. 20.12.2011; opubl. 20.09.2013. MPK H04L.
3. SHakurskijj V.K., SHakurskijj M.V. Szhimajushhie otobrazhenija v invariantnykh preobrazovateljakh i sistemakh steganografii. Izdatelstvo SNC RAN. Samara. 2014.
4. Obrabotka i preobrazovanie signalov v radiotekhnicheskikh i infokommunikacionnykh sistemakh / Pod red. V.I. Volovacha M.: Radio i svjaz. 2014. 448 s.
5. SHakurskijj M.V. Formirovanie kontejjnera dlja steganograficheskojj sistemy na osnove szhimajushhikh otobrazhenijj // Radiotekhnika». 2015. №2. S. 134−139.
6. SHakurskijj M.V., SHakurskijj V.K. Steganograficheskaja sistema na osnove szhimajushhikh otobrazhenijj // Nauchno-prakti­ches­kijj zhurnal «Voprosy zashhity informacii». 2015. №2. S. 74−78.