Summary

Proceedings of the 2012 International Symposium on Nonlinear Theory and its Applications

2012

Session Number:B1L-D

Session:

Number:332

Mixing of analogue and digital entropies for optical chaos communications

Laurent Larger,  Romain Modeste Nguimdo,  Luis Pesquera,  Pere Colet,  

pp.332-335

Publication Date:

Online ISSN:2188-5079

DOI:10.15248/proc.1.332

PDF download (588.2KB)

Summary:
Security issues in optical chaos communications is still an open problem, mainly because of known time series analysis techniques that enable to recover, at least in principle, the physical parameters ruling the chaotic motion. On the basis of a recently proposed electro-optic phase chaos architecture, we propose a novel physical encryption scheme which is mixing the broadband analogue encryption of chaos communication, together with the flexibility of a numerically generated pseudo-random binary sequence. The approach is shown to provide efficient time delay concealment in the transmitted signal, which is one of the most critical physical parameter in delay-based chaos communication systems.

References:

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