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Synchronization of high‐order oscillators by observer design with application to hyperchaos‐based cryptography
Author(s) -
Grassi Giuseppe,
Mascolo Saverio
Publication year - 1999
Publication title -
international journal of circuit theory and applications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.364
H-Index - 52
eISSN - 1097-007X
pISSN - 0098-9886
DOI - 10.1002/(sici)1097-007x(199911/12)27:6<543::aid-cta81>3.0.co;2-4
Subject(s) - synchronizing , synchronization (alternating current) , cryptography , computer science , context (archaeology) , neural cryptography , observer (physics) , theoretical computer science , mathematics , computer security , public key cryptography , computer network , telecommunications , encryption , physics , channel (broadcasting) , paleontology , quantum mechanics , transmission (telecommunications) , biology
The aim of this paper is to make a contribution in the context of both hyperchaos synchronization and cryptography. The approach illustrated herein, which exploits the concept of observer from system theory, is at first applied for synchronizing via a scalar signal two recent examples of high‐order oscillators, characterized by several positive Lyapunov exponents. Successively, an example of hyperchaos‐based cryptography is illustrated. The advantages of the proposed tool are discussed in detail. In particular, the utilization of both synchronization of complex dynamics and cryptography seems to make a contribution to the development of communication systems with higher security. Copyright © 1999 John Wiley & Sons, Ltd.