Secure digital communication using controlled projective synchronisation of chaos. (English) Zbl 1068.94010

Summary: A new approach to chaos communication is proposed to encrypt digital information using controlled projective synchronisation. The scheme encrypts a binary sequence by manipulating the scaling feature of synchronisation from the coupled system. The transmitted signal therefore embeds only a single set of statistical properties. This prevents cryptanalysts from breaking the chaotic encryption scheme by using characteristic cryptanalysis that aims to detect switching of statistical properties in the intercepted information carrier signal. A pseudo-random switching key is incorporated into the scheme to mask out the deterministic nature of the underlying coupled system.


94A60 Cryptography
94A05 Communication theory
37D45 Strange attractors, chaotic dynamics of systems with hyperbolic behavior
68P25 Data encryption (aspects in computer science)
Full Text: DOI


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