期刊名称：International Journal of Network Security & Its Applications
印刷版ISSN：0975-2307
电子版ISSN：0974-9330
出版年度：2016
卷号：8
期号：5
页码：39
DOI：10.5121/ijnsa.2016.8503
出版社：Academy & Industry Research Collaboration Center (AIRCC)
摘要：This paper proposed a novel color image encryption scheme based on multiple chaotic systems. Theergodicity property of chaotic system is utilized to perform the permutation process; a substitutionoperation is applied to achieve the diffusion effect. In permutation stage, the 3D color plain-image matrixis converted to a 2D image matrix, then two generalized Arnold maps are employed to generate hybridchaotic sequences which are dependent on the plain-image’s content. The generated chaotic sequences arethen applied to perform the permutation process. The encryption’s key streams not only depend on thecipher keys but also depend on plain-image and therefore can resist chosen-plaintext attack as well asknown-plaintext attack. In the diffusion stage, four pseudo-random gray value sequences are generated byanother generalized Arnold map. The gray value sequences are applied to perform the diffusion process bybitxoring operation with the permuted image row-by-row or column-by-column to improve the encryptionrate. The security and performance analysis have been performed, including key space analysis, histogramanalysis, correlation analysis, information entropy analysis, key sensitivity analysis, differential analysisetc. The experimental results show that the proposed image encryption scheme is highly secure thanks to itslarge key space and efficient permutation-substitution operation, and therefore it is suitable for practicalimage and video encryption.
关键词：Generalized Arnold Map; Permutation; Substitution; Chaotic System; Image Encryption
