Chaotic color image encryption based on 4D chaotic maps and DNA sequence

2022 ◽  
Vol 148 ◽  
pp. 107753
Author(s):  
Simiao Wang ◽  
Qiqi Peng ◽  
Baoxiang Du
Keyword(s):  
Dna Sequence ◽  
Image Encryption ◽  
Chaotic Maps ◽  
Color Image ◽  
Color Image Encryption

scholarly journals Improved Cryptanalysis and Enhancements of an Image Encryption Scheme Using Combined 1D Chaotic Maps

Entropy ◽  
2018 ◽  
Vol 20 (11) ◽  
pp. 843 ◽  
Author(s):  
Congxu Zhu ◽  
Guojun Wang ◽  
Kehui Sun
Keyword(s):  
Image Encryption ◽  
Experimental Validation ◽  
Chaotic Maps ◽  
Color Image ◽  
Security Analysis ◽  
Transformation Process ◽  
Encryption Scheme ◽  
Color Image Encryption ◽  
Unknown Parameters ◽  
Related Approach

This paper presents an improved cryptanalysis of a chaos-based image encryption scheme, which integrated permutation, diffusion, and linear transformation process. It was found that the equivalent key streams and all the unknown parameters of the cryptosystem can be recovered by our chosen-plaintext attack algorithm. Both a theoretical analysis and an experimental validation are given in detail. Based on the analysis of the defects in the original cryptosystem, an improved color image encryption scheme was further developed. By using an image content–related approach in generating diffusion arrays and the process of interweaving diffusion and confusion, the security of the cryptosystem was enhanced. The experimental results and security analysis demonstrate the security superiority of the improved cryptosystem.

Diffusion-Substitution Mechanism for Color Image Encryption Based on Multiple Chaotic Systems

2014 ◽  
Vol 981 ◽  
pp. 327-330 ◽  
Author(s):  
Tie Jun Zhang ◽  
Ahmed A. Abd El-Latif ◽  
Mohamed Amin ◽  
Alaa Zaghloul
Keyword(s):  
Image Encryption ◽  
Chaotic Systems ◽  
Chaotic Maps ◽  
Color Image ◽  
Security Requirements ◽  
Color Image Encryption ◽  
Trade Offs ◽  
Substitution Mechanism ◽  
Speed Performance ◽  
Multiple Chaotic Systems

In this paper, a new color image encryption mechanism based on multiple chaotic systems is proposed. In the proposal, two modules are achieved by mixing the features of horizontally and vertically adjacent pixels with the help of adopted multiple chaotic systems, respectively. Then, substitution/confusion is accomplished by generating an intermediate chaotic key stream image based on the adopted chaotic maps. Experimental results show that the proposed scheme is able to manage the trade-offs between the speed performance and security requirements.

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