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首页> 外文期刊>International journal of multimedia data engineering & management >A Hybrid Image Encryption Algorithm Based on Chaos System and Simplified Advanced Encryption System
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A Hybrid Image Encryption Algorithm Based on Chaos System and Simplified Advanced Encryption System

机译：一种基于混沌系统和简化高级加密系统的混合图像加密算法

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摘要

Image encryption algorithms usually have two processes: permutation and diffusion. In order to enhance the performance of the permutation process, this study proposes a dynamic permutation method based on XOR operation and sorting. Combined with the hyper-chaotic system, SHA-256, the proposed permutation method and the simplified advanced encryption system (S-AES), a novel image encryption algorithm is presented in this paper. Firstly, the SHA-256 is used to generate initial condition values of the chaotic system and control parameters of the permutation method. Then, the chaotic system generates pseudo-random numbers, which are used in the permutation method and S-AES. Finally, the proposed permutation method and S-AES are used to encrypt the plain-image. In particular, parallel computing is used in this study to accelerate encryption speed. The results and analysis indicate that the proposed algorithm has excellent security to resist various typical attacks and fast encryption speed.
机译：图像加密算法通常具有两个过程：排列和扩散。为了提高置换过程的性能，本研究提出了一种基于XOR操作和分类的动态置换方法。结合超混沌系统，SHA-256，提出的置换方法和简化的先进加密系统（S-AES），本文介绍了一种新颖的图像加密算法。首先，SHA-256用于产生置换方法的混沌系统的初始条件值和控制参数。然后，混沌系统生成伪随机数，其用于置换方法和S-AES。最后，所提出的置换方法和S-AES用于加密普通图像。特别地，本研究中使用并行计算以加速加密速度。结果和分析表明，该算法具有优异的安全性来抵抗各种典型的攻击和快速加密速度。

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