Using Surrogate Data Analysis for Unmasking Chaotic Communication Systems
- 1 February 1997
- journal article
- research article
- Published by World Scientific Pub Co Pte Ltd in International Journal of Bifurcation and Chaos
- Vol. 07 (02) , 407-413
- https://doi.org/10.1142/s0218127497000273
Abstract
Synchronization-based communication systems are presented using hyperchaotic attractors with Lyapunov dimensions DL = 10.02 and DL = 100.02. The transmitted signal containing the encoded message is subject to surrogate data tests in order to unmask and identify the transmission of informations. Using moderate data sets (16K samples) the tests are able to detect the chaotic carrier in the case of the attractor with DL = 10.02 but not for DL = 100.02. These results thus indicate limits for both, the privacy of chaotic communication systems and surrogate data tests.Keywords
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