A new combination chaotic system and its application in a new Bit-level image encryption scheme

被引：85
|
作者：
Zhou, Wenjie [1 ]
Wang, Xingyuan [2 ]
Wang, Mingxu [3 ]
Li, Dongyan [4 ]
机构：
[1] Lanzhou Jiaotong Univ, Sch Elect & Informat Engn, Lanzhou 730070, Peoples R China
[2] Dalian Maritime Univ, Sch Informat Sci & Technol, Dalian 116026, Peoples R China
[3] Dalian Univ Technol, Fac Elect Informat & Elect Engn, Dalian 116024, Peoples R China
[4] Dalian Jiaotong Univ, Software Technol Inst, Dalian 116028, Peoples R China
来源：
OPTICS AND LASERS IN ENGINEERING | 2022年 / 149卷
基金：
中国国家自然科学基金;
关键词：
Combination chaotic system; One-dimensional chaotic map; Bit-level image encryption; Plaintext-related key streams; SEMI-TENSOR PRODUCT; ALGORITHM; WATERMARKING;
D O I：
10.1016/j.optlaseng.2021.106782
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
In this paper, a new combination chaotic system (NCCS) is proposed for image encryption. The proposed system has larger key space and exhibits better cryptographic features in dynamics than their original one-dimensional chaotic map. Meanwhile, using NCCS, a new bit-level image encryption scheme is proposed. The core of the scheme includes the generation of the plaintext-related key streams by SHA-512 Hash function and random decimal points sequence, NCCS-based bit-level image confusion and diffusion operations. Experimental results and security analyses show the validity of the proposed algorithm in terms of high security, and demonstrate the good chaotic behavior of NCCS.
引用
收藏
页数：15
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