An image encryption algorithm based on the perturbed high-dimensional chaotic map

Due to the secure problems of low-dimensional chaos in image encryption and cycle degradation caused by computers’ finite precision, a perturbed high-dimensional chaos is designed for image encryption according to Devaney and topological conjugate definition. Perturbation is added to the new high-di...

Full description

Saved in:
Bibliographic Details
Published inNonlinear dynamics Vol. 80; no. 3; pp. 1493 - 1508
Main Authors Tong, Xiao Jun, Wang, Zhu, Zhang, Miao, Liu, Yang, Xu, Hui, Ma, Jing
Format Journal Article
LanguageEnglish
Published Dordrecht Springer Netherlands 01.05.2015
Springer Nature B.V
Subjects
Algorithms
Automotive Engineering
Chaos theory
Classical Mechanics
Confusion
Control
Dynamical Systems
Encryption
Engineering
Mechanical Engineering
Original Paper
Perturbation
Security
Vibration
Chaos
Image encryption
High-dimensional chaotic map
Perturbation
Separated Cat map
Online AccessGet full text

Cover

More Information
Summary:Due to the secure problems of low-dimensional chaos in image encryption and cycle degradation caused by computers’ finite precision, a perturbed high-dimensional chaos is designed for image encryption according to Devaney and topological conjugate definition. Perturbation is added to the new high-dimensional chaos to enlarge cycle. The characteristics of the high-dimensional chaotic map are proved by Devaney definition, and the security features are analyzed. Owe to the periodic defects of Cat map, a new separated Cat map is designed for the confusion process. The “confusion–diffusion” structure is used in the image encryption. The security test results demonstrate the proposed methods have high security, and the speed of our algorithm is faster than classical solutions.
ISSN:0924-090X
1573-269X
DOI:10.1007/s11071-015-1957-9