A DNA image encryption based on a new hyperchaotic system

被引：40
作者：
Hui, Yuanyuan [1 ]
Liu, Han [1 ]
Fang, Pengfei [1 ]
机构：
[1] Xian Univ Technol, Sch Automat & Engn, Xian, Peoples R China
来源：
MULTIMEDIA TOOLS AND APPLICATIONS | 2023年 / 82卷 / 14期
关键词：
Hyperchaotic system; Image encryption; Security analysis;
D O I：
10.1007/s11042-021-10526-7
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
In this paper, a new four-dimensional hyperchaotic system that has better unpredictability, more complex dynamic behavior, and a larger key space is proposed. The initial chaos value is calculated by using the Secure Hash Algorithm-512 (SHA-512) function, and the hyperchaotic sequence is then used as the key stream to encrypt the original image through pixel scrambling and pixel diffusion. The experimental results show that the image encryption algorithm has a strong ability to resist exhaustive attacks, statistical attacks and plaintext attacks.
引用
收藏
页码：21983 / 22007
页数：25
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