期刊名称：Carptahian Journal of Electronic and Computer Engineering
印刷版ISSN：1844-9689
电子版ISSN：2343-8908
出版年度：2018
卷号：11
期号：1
页码：15-25
DOI：10.2478/cjece-2018-0004
语种：English
出版社：UT Press Publishing House, Technical University of ClujNapoca, Romania
摘要：This paper proposes an image encryption algorithm which uses four scans of an image during the diffusion stage in order to achieve total diffusion between intensities of image pixels. The condition of total diffusion is fulfilled by a suitable combination of techniques of ciphertext chaining and plaintext related diffusion. The proposed encryption algorithm uses two stages which utilize chaotic logistic map for generation of pseudo-random sequences. The paper also briefly analyzes approaches described by other researchers and evaluates experimental results of the proposed solution by means of commonly used measures. Properties of our proposal regarding modifications of plain images prior to encryption or modifications of encrypted images prior to decryption are illustrated by two additional experiments. The obtained numeric results are compared with those achieved by other proposals and briefly discussed.
