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Indexed by:期刊论文

Date of Publication:2019-10-01

Journal:OPTICS AND LASERS IN ENGINEERING

Included Journals:SCIE、EI

Volume:121

Page Number:479-494

ISSN No.:0143-8166

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

Abstract: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.