Reviews of topical problems

On the use of chaotic synchronization for secure communication

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Nonlinear Processes Department, Chernyshevskii Saratov State University, ul. Astrakhanskaya 83, Saratov, 410012, Russian Federation

Research on the secure communication applications of chaotic synchronization is reviewed. A number of secure communication methods and devices using different types of synchronous behavior are examined. For the purpose of comparing existing methods, quantitative characteristics of operating capacity of various schemes are introduced and estimated. An extremely noise-stable secure information transmission method, based on the phenomenon of generalized chaos synchronization, is proposed. All of the methods considered are systematically checked for efficiency for the first time by numerically simulating unidirectionally coupled chaotic R?ossler systems selected for transmitting and receiving oscillators. The key advantages and disadvantages of secure information transmission schemes using synchronized chaotic oscillations are discussed. The experimental data gathered in this field are also reviewed.

Fulltext is available at IOP
PACS: 05.45.−a, 05.45.Pq, 05.45.Tp, 05.45.Vx, 05.45.Xt (all)
DOI: 10.3367/UFNe.0179.200912c.1281
Citation: Koronovskii A A, Moskalenko O I, Hramov A E "On the use of chaotic synchronization for secure communication" Phys. Usp. 52 1213–1238 (2009)
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Оригинал: Короновский А А, Москаленко О И, Храмов А Е «О применении хаотической синхронизации для скрытой передачи информации» УФН 179 1281–1310 (2009); DOI: 10.3367/UFNr.0179.200912c.1281

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