Paper Info
Title
A New Conservative Hyperchaotic System-Based Image Symmetric Encryption Scheme with DNA Coding
Abstract
In the current paper, a new conservative hyperchaotic system is proposed. We make a quantitative analysis of the complexity of the conservative hyperchaotic system from several different aspects, such as phase diagrams, bifurcation diagrams, Lyapunov exponents, and Kaplan-Yorke dimension. The complexity of chaotic time series is tested with various measurement tools, such as the scale index, the multiscale sample entropy and approximate entropy, TESTU01, and NIST test. In addition, a novel hyperchao-based image encryption scheme with dynamic DNA coding is proposed. The encryption algorithm consists of line-by-line scrambling and diffusion of DNA encoding characters. The dynamic DNA coding mechanism is introduced by using the chaotic sequence. The generation of the intermediate secret keys is related to the sum of the image DNA code, and the ciphertext feedback mechanism of the DNA encoding image is introduced in the diffusion procedure. Simulation experiments and various security analyses show that this algorithm has a good effect on encryption, high time efficiency, and can effectively resist brute force attacks, statistical attacks, chosen-plaintext attacks, and differential attacks.
Year
DOI
Venue
2021
10.3390/sym13122317
SYMMETRY-BASEL
Keywords
DocType
Volume
conservative hyperchaotic system, applications of chaos, image encryption, DNA operation, scrambling, diffusion
Journal
13
Issue
Citations 
PageRank 
12
0
0.34
References 
Authors
0
3
Name
Order
Citations
PageRank
Qing Lu130.73
Linlan Yu200.34
Congxu Zhu300.34