Results 21 to 30 of about 14,486 (262)
A novel image encryption scheme based on 3D bit matrix and chaotic map with Markov properties
Egyptian Informatics Journal, 2019 Based on 3D cat map, reverse 3D cat map and an improved class of chaotic maps with Markov properties, an effective bit-level image encryption scheme is proposed.
Meng Ge, Ruisong Ye
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A Novel Chaotic Map and an Improved Chaos-Based Image Encryption Scheme
The Scientific World Journal, 2014 In this paper, we present a novel approach to create the new chaotic map and propose an improved image encryption scheme based on it. Compared with traditional classic one-dimensional chaotic maps like Logistic Map and Tent Map, this newly created ...
Xianhan Zhang, Yang Cao
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Entropy, 2022 With the advancement of technology worldwide, security is essential for online information and data. This research work proposes a novel image encryption method based on combined chaotic maps, Halton sequence, five-dimension (5D) Hyper-Chaotic System and
Sakshi Patel, Thanikaiselvan Veeramalai
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Speech encryption using chaotic shift keying for secured speech communication
EURASIP Journal on Audio, Speech, and Music Processing, 2017 This paper throws light on chaotic shift keying-based speech encryption and decryption method. In this method, the input speech signals are sampled and its values are segmented into four levels, namely L 0, L 1, L 2, and L 3. Each level of sampled values
P. Sathiyamurthi, S. Ramakrishnan
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A 2D Chaotic Oscillator for Analog IC
IEEE Open Journal of Circuits and Systems, 2022 In this paper, we have proposed the design of an analog two-dimensional (2D) discrete-time chaotic oscillator. 2D chaotic systems are studied because of their more complex chaotic behavior compared to one-dimensional (1D) chaotic systems.
Partha Sarathi Paul +3 more
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Self-Parameterized Chaotic Map for Low-Cost Robust Chaos
Journal of Low Power Electronics and Applications, 2023 This paper presents a general method, called “self-parameterization”, for designing one-dimensional (1-D) chaotic maps that provide wider chaotic regions compared to existing 1-D maps. A wide chaotic region is a desirable property, as it helps to provide
Partha Sarathi Paul +4 more
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Random Delays and the Synchronization of Chaotic Maps [PDF]
Physical Review Letters, 2005 We investigate the dynamics of an array of logistic maps coupled with random delay times. We report that for adequate coupling strength the array is able to synchronize, in spite of the random delays. Specifically, we find that the synchronized state is a homogeneous steady-state, where the chaotic dynamics of the individual maps is suppressed.
Masoller Alonso, Cristina +1 more
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Construction of a New Discrete Chaotic Mapping Based on the Robust Chaos Theorem
MathematicsChaotic systems serve as fundamental pseudo-random sequence generators in encryption algorithms and play a vital role in communication security. However, most current research still focus on the classical Logistic chaotic map, making it vulnerable to ...
Liyan Hua +4 more
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ESTIMATING HYPERBOLICITY OF CHAOTIC BIDIMENSIONAL MAPS [PDF]
International Journal of Bifurcation and Chaos, 2012 We apply to bidimensional chaotic maps the numerical method proposed by Ginelli et al. [2007] to approximate the associated Oseledets splitting, i.e. the set of linear subspaces spanned by the so-called covariant Lyapunov vectors (CLV) and corresponding to the Lyapunov spectrum.
Matteo Sala +2 more
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BER Performance Improvement of Dual Chaotic Maps Based on STBC Communication System
Al-Khawarizmi Engineering Journal, 2022 Sensitive information of any multimedia must be encrypted before transmission. The dual chaotic algorithm is a good option to encrypt sensitive information by using different parameters and different initial conditions for two chaotic maps.
Lwaa Faisal Abdulameer +2 more
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