Results 51 to 60 of about 15,300 (165)

General Construction Method and Proof for a Class of Quadratic Chaotic Mappings

open access: yesMathematics
The importance of chaotic systems as the main pseudo-random cryptographic generator of encryption algorithms in the field of communication secrecy cannot be overstated, but in practical applications, researchers often choose to build upon traditional ...
Wenxia Xu   +4 more
doaj   +1 more source

Enhanced logistic map with infinite chaos and its applicability in lightweight and high-speed pseudo-random bit generation

open access: yesCybersecurity
Chaotic maps are employed in cryptography and secure communications due to their unpredictable and complex dynamics. However, existing chaotic maps, specifically the one-dimensional chaotic maps, often have limited chaotic control parameter ranges, which
Mir Nazish   +2 more
doaj   +1 more source

Design of Positive, Negative, and Alternating Sign Generalized Logistic Maps

open access: yesDiscrete Dynamics in Nature and Society, 2015
The discrete logistic map is one of the most famous discrete chaotic maps which has widely spread applications. This paper investigates a set of four generalized logistic maps where the conventional map is a special case.
Wafaa S. Sayed   +2 more
doaj   +1 more source

Chaotic stream encryption scheme based on topological conjugate chaotic systems of Tent map

open access: yes工程科学学报, 2015
A general chaotic stream encryption scheme is proposed by using two chaotic systems which topologically conjugate with Tent map and a method to generate independent and identically distributed chaotic streams.
TIAN Qing, XU Zheng-guang, TIAN Li
doaj   +1 more source

An Image Encryption Scheme Based on Hyperchaotic Rabinovich and Exponential Chaos Maps

open access: yesEntropy, 2015
This paper proposes a new four-dimensional hyperchaotic map based on the Rabinovich system to realize chaotic encryption in higher dimension and improve the security.
Xiaojun Tong   +4 more
doaj   +1 more source

Chaotic behavior of the fractional cubic map

open access: yes四川大学学报. 自然科学版
In this paper, the chaotic characteristics of fractional cubic map are investigated.Firstly, the fractional differential equation with piecewise constant elements is defined based on the cubic map, the fractional cubic map is obtained by using the ...
GAO Shi-Long, YU Wen-Hui
doaj  

Chaotic singular maps

open access: yes, 2008
We consider a family of singular maps as an example of a simple model of dynamical systems exhibiting the property of robust chaos on a well defined range of parameters. Critical boundaries separating the region of robust chaos from the region where stable fixed points exist are calculated on the parameter space of the system.
Cosenza, M. G., Alvarez-LLamoza, O.
openaire   +2 more sources

Chaotic Hénon–Logistic Map Integration: A Powerful Approach for Safeguarding Digital Images

open access: yesJournal of Cybersecurity and Privacy
This paper presents an integrated chaos-based algorithm for image encryption that combines the chaotic Hénon map and chaotic logistic map (CLM) to enhance the security of digital image communication. The proposed method leverages chaos theory to generate
Abeer Al-Hyari   +3 more
doaj   +1 more source

Concurrent compression and meaningful encryption of images using chaotic compressive sensing

open access: yesFrontiers in Computer Science
The presented research introduces a new approach to simultaneously compressing and encrypting images using chaotic compressive sensing. This technique involves transforming the image into sparser data using the discrete cosine transform basis, which is ...
K. Ashwini   +3 more
doaj   +1 more source

Generating Powerful Encryption Keys for Image Cryptography With Chaotic Maps by Incorporating Collatz Conjecture

open access: yesIEEE Access
In recent years, the chaotic logistic map key (CLMK) has been widely used for image encryption due to its ability to generate random and unpredictable sequences of numbers.
Abeer Al-Hyari   +3 more
doaj   +1 more source

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