Journal ArticleDOI
Two-Dimensional Modular Chaotification System for Improving Chaos Complexity
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TLDR
Improved chaotic maps of 2D-MCS are applied to secure communication and show that these improved chaotic maps exhibit better performance than several existing and newly developed chaotic maps in terms of resisting different channel noise.Abstract:
Chaotic systems are widely studied in various research areas such as signal processing and secure communication. Existing chaotic systems may have drawbacks such as discontinuous chaotic ranges and incomplete output distributions. These drawbacks may lead to the defects of some chaos-based applications. To accommodate these challenges, this paper proposes a two-dimensional (2D) modular chaotification system (2D-MCS) to improve the chaos complexity of any 2D chaotic map. Because the modular operation is a bounded transform, the improved chaotic maps by 2D-MCS can generate chaotic behaviors in wide parameter ranges while existing chaotic maps cannot. Three improved chaotic maps are presented as typical examples to verify the effectiveness of 2D-MCS. The chaos properties of one example of 2D-MCS are mathematically analyzed using the definition of Lyapunov exponent. Performance evaluations demonstrate that these improved chaotic maps have continuous and large chaotic ranges, and their outputs are distributed more uniformly than the outputs of existing 2D chaotic maps. To show the application of 2D-MCS, we apply the improved chaotic maps of 2D-MCS to secure communication. The simulation results show that these improved chaotic maps exhibit better performance than several existing and newly developed chaotic maps in terms of resisting different channel noise.read more
Citations
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Journal ArticleDOI
Dynamic Analysis of Digital Chaotic Maps via State-Mapping Networks
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Color image encryption using orthogonal Latin squares and a new 2D chaotic system
TL;DR: This paper proposes a new color image encryption algorithm (CIEA) that sufficiently considers the properties of the color image and Latin square and designs a two-dimensional chaotic system called 2D-LSM to address the weaknesses of existing chaotic systems.
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Visually secure image encryption using adaptive-thresholding sparsification and parallel compressive sensing
TL;DR: Wang et al. as discussed by the authors proposed a new visually secure image encryption scheme using adaptive-thresholding sparsification to greatly improve the quality of the reconstructed image and designed a new parallel CS technique to tremendously improve the processing efficiency.
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Design and application of an S-box using complete Latin square
TL;DR: Performance evaluations demonstrate that the S-box generated by the proposed method has a high security level and can outperform several state-of-the-art encryption algorithms.
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FPGA implementation and image encryption application of a new PRNG based on a memristive Hopfield neural network with a special activation gradient
TL;DR: In this article , a memristive Hopfield neural network (MHNN) with a special activation gradient is proposed by adding a suitable memristor to the Hopfield Neural Network (HNN).
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