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论文类型：期刊论文

发表时间：2019-10-01

发表刊物：OPTICS AND LASERS IN ENGINEERING

收录刊物：SCIE、EI

卷号：121

页面范围：479-494

ISSN号：0143-8166

关键字：Chaotic system; Power-exponential structure; Color image cryptosystem; Confusion and diffusion; Security analysis

摘要：In this paper, a new chaotic system in the form of the power-exponential structure is designed. The results of three types of analyses demonstrate that the proposed system can obtain many one-dimensional chaotic maps with a large chaotic range and uniform distribution. Then, a new color image cryptosystem is introduced using the four integrated chaotic maps that are based on the former system. Both the confusion and diffusion phases in our cryptosystem are related to those chaotic maps and the plain color image. Furthermore, we conduct many simulations and security analyses, and the results demonstrate that the proposed scheme is highly secure against common types of attacks.