Secure communication using a compound signal from generalized synchronizable chaotic systems. (English) Zbl 0933.94023

Summary: By considering generalized synchronizable chaotic systems, the drive-auxiliary system variables are combined suitably using encryption key functions to obtain a compound chaotic signal. An appropriate feedback loop is constructed in the response-auxiliary system to achieve synchronization among the variables of the drive-auxiliary and response-auxiliary systems. We apply this approach to transmit analog and digital information signals in which the quality of the recovered signal is higher and the encoding is more secure.


94A60 Cryptography
37N99 Applications of dynamical systems
94A12 Signal theory (characterization, reconstruction, filtering, etc.)
Full Text: DOI arXiv


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