Journal ArticleDOI
Application of neural networks to unmasking chaotic secure communication
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TLDR
The chaotic shift keying, which is the most robust chaotic secure communication scheme, is unmasked by using two simple single-layer neural networks (NNs) with known text attack strategy and low-pass filtering and thresholding.About:
This article is published in Physica D: Nonlinear Phenomena.The article was published on 1998-12-01. It has received 54 citations till now. The article focuses on the topics: Spectrogram & Lorenz system.read more
Citations
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Journal ArticleDOI
Cryptanalysis of fridrich's chaotic image encryption
TL;DR: An attack is proposed that reveals the secret permutation that is used to shuffle the pixels of a round input that makes Fridrich's chaotic image encryption algorithm vulnerable against chosen-ciphertext attacks.
Journal ArticleDOI
Secure digital communication using controlled projective synchronisation of chaos
Chin Yi Chee,Daolin Xu +1 more
TL;DR: A new approach to chaos communication is proposed to encrypt digital information using controlled projective synchronisation and Pseudo-random switching key is incorporated into the scheme to masked out the deterministic nature of the underlying coupled system.
Journal ArticleDOI
Improving the security of chaotic encryption by using a simple modulating method
Shouliang Bu,Bing-Hong Wang +1 more
TL;DR: A simple but efficient method for synchronizing chaotic systems by modulating the transmitted signal with an appropriately choosing scalar signal is proposed and it turns out that this modulating strategy not only preserves all appropriate information required for synchronize chaotic systems but also destroys the possibility of the phase space reconstruction of the sender dynamics such as a return map.
Journal ArticleDOI
Nonseparation Method-Based Finite/Fixed-Time Synchronization of Fully Complex-Valued Discontinuous Neural Networks
TL;DR: This article mainly focuses on the problem of synchronization in finite and fixed time for fully complex-variable delayed neural networks involving discontinuous activations and time-varying delays without dividing the original complex- variable neural networks into two subsystems in the real domain.
Proceedings ArticleDOI
An Image Encryption Scheme Based on Cross Chaotic Map
TL;DR: A cross chaotic map using Logistic map and Chebyshev map is presented and the experimental results indicate the scheme is more secure and efficient than convention alones, and it is feasible.
References
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Journal ArticleDOI
Deterministic nonperiodic flow
TL;DR: In this paper, it was shown that nonperiodic solutions are ordinarily unstable with respect to small modifications, so that slightly differing initial states can evolve into considerably different states, and systems with bounded solutions are shown to possess bounded numerical solutions.
Journal ArticleDOI
Synchronization of Lorenz-based chaotic circuits with applications to communications
TL;DR: In this article, two possible approaches to secure communications are demonstrated with the Lorenz circuit implemented in both the transmitter and receiver, where a chaotic masking signal is added at the transmitter to the message, and at the receiver, the masking is regenerated and subtracted from the received signal.
Journal ArticleDOI
Extracting Messages Masked by Chaos
TL;DR: This chapter highlights how to extract messages that are masked by a chaotic signal in a system of two Lorenz oscillators, which is robust with respect to transformations that impede the unmasking using a Lorenz receiver, and is not affected by the broadband noise that is inherent to the synchronization process.
Journal ArticleDOI
Steps Toward Unmasking Secure Communications
TL;DR: The secure communications systems based on chaotic carriers may be useful to increase privacy, but are not yet capable of providing a high level of security, according to this work.
Journal ArticleDOI
Unmasking a modulated chaotic communications scheme
TL;DR: This paper will address the problem of unmasking a new chaotic communication scheme using synchronizing circuits, where the Lorenz system is modulated by the message and the x-coordinate of the modulated system is added to themessage and transmitted to the receiver, and demonstrate that it is still possible to extract a sinusoidal message from the transmitted signal.
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