A block cipher based on a suitable use of the chaotic standard map
A block cipher based on a suitable use of the chaotic standard map
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DOI：
10.1016/j.chaos.2004.11.096
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发表时间：
2005-10-01
影响因子：
7.8
通讯作者：
Wang, ZQ
中科院分区：
文献类型：
--
作者：
Lian, SG;Sun, JS;Wang, ZQ
由于它们具有崇高性的特征，对初始条件的敏感性以及对控制参数等的敏感性，混乱的图具有良好的信息加密潜力。在本文中，提出了一个基于混乱标准图的块密码，该密码由三个部分组成：基于混乱的标准图，扩散函数和钥匙发生器的混乱过程。分析了标准图的参数灵敏度，并提出了基于它的混淆过程。设计了具有高扩散速度的扩散函数，并得出了基于混沌偏斜帐篷图的A键发电机。对设计密码的安全性进行了一些密码分析，并分析了其计算复杂性。实验结果表明，新密码具有令人满意的安全性，其成本较低，这使ITA潜在的候选人可以加密多媒体数据，例如图像，音频甚至视频。 （c）2005 Elsevier Ltd.保留所有权利。
Due to their features of ergodicity, sensitivity to initial conditions and sensitivity to control parameters, etc., chaotic maps have good potential for information encryption. In this paper, a block cipher based on the chaotic standard map is proposed, which is composed of three parts: a confusion process based on chaotic standard map, a diffusion function, and a key generator. The parameter sensitivity of the standard map is analyzed, and the confusion process based on it is proposed. A diffusion function with high diffusion speed is designed, and a,key generator based on the chaotic skew tent map is derived. Some cryptanalysis on the security of the designed cipher is carried out, and its computational complexity is analyzed. Experimental results show that the new cipher has satisfactory security with a low cost, which makes ita potential candidate for encryption of multimedia data such as images, audios and even videos. (c) 2005 Elsevier Ltd. All rights reserved.