期刊
出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.procs.2018.01.153
关键词
Image encryption; Image decryption; shew tent map; Confusion; Diffusion
In this paper, we propose a new image encryption scheme based on confusion and diffusion for securing a color and grayscale images using an Enhanced Skew Tent Map (ESTM). Firstly, since chaotic properties are strongly related to cryptographic properties in confusion and diffusion, we improved the chaotic behavior of the map skew tent map to generate a good chaotic key stream that is more advisable for image encryption. Then, the traditional scrambling techniques confusion and diffusion are applied on the original image decomposed into blocks of size 1 x256. The results of the simulation show the validity of the proposed scheme. (C) 2018 The Authors. Published by Elsevier B.V.
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