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Philos Trans A Math Phys Eng Sci. 2010 Jan 28;368(1911):379-89. doi: 10.1098/rsta.2009.0230.

On chaos synchronization and secure communication.

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  • 1Institute of Theoretical Physics, University of Wuerzburg, Wuerzburg, Germany.


Chaos synchronization, in particular isochronal synchronization of two chaotic trajectories to each other, may be used to build a means of secure communication over a public channel. In this paper, we give an overview of coupling schemes of Bernoulli units deduced from chaotic laser systems, different ways to transmit information by chaos synchronization and the advantage of bidirectional over unidirectional coupling with respect to secure communication. We present the protocol for using dynamical private commutative filters for tap-proof transmission of information that maps the task of a passive attacker to the class of non-deterministic polynomial time-complete problems.

This journal is © 2010 The Royal Society

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