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

被引：39
|
作者：
Tong, Xiaojun [1 ]
Liu, Yang [1 ]
Zhang, Miao [1 ]
Xu, Hui [1 ]
Wang, Zhu [2 ]
机构：
[1] Harbin Inst Technol, Sch Comp Sci & Technol, Weihai 264209, Peoples R China
[2] Harbin Inst Technol, Sch Informat & Elect Engn, Weihai 264209, Peoples R China
来源：
ENTROPY | 2015年 / 17卷 / 01期
基金：
中国国家自然科学基金;
关键词：
exponential chaos; hyperchaos; image encryption; pseudo-random sequence; SYSTEM;
D O I：
10.3390/e17010181
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
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. The chaotic sequences generated by Runge-Kutta method are combined with the chaotic sequences generated by an exponential chaos map to generate key sequences. The key sequences are used for image encryption. The security test results indicate that the new hyperchaotic system has high security and complexity. The comparison between the new hyperchaotic system and the several low-dimensional chaotic systems shows that the proposed system performs more efficiently.
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页码：181 / 196
页数：16
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