| A Chaotic Block Encryption Scheme Based on the Piecewise Nonlinear Map |
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| 作者姓名： | WEI Pengcheng LIAO Xiaofeng ZHANG Wei YANG Huaqian |
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| 作者单位： | [1]College of Computer Science, Chongqing University, Chongqing 400044, China [2]Department of Computer and Modern Education Technology, Chongqing Education College, Chongqing 400067, China |
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| 基金项目： | Supported by the National Natural Science Foundauon of China （60573047）, the Natural Science Foundation of Chongqing Science and Technology Committee （CSTC, 2005B2286）, and the Applying Basic Research of Chongqing Education Committee （kj051501） |
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| 摘 要： | 0 IntroductionIn recent years ,the application research of information se-curity using chaos theory has become an area of active re-search due to good properties of chaotic signals and many re-search results are obtained1-6]. Kocarevet al6]proposed ablock encryptionalgorithmbased onchaotic Logistic map,anddiscussed the relationship between cryptography and chaostheory,and si milarities of their crucial concepts such as mix-ing property and sensitivityto changesininitial conditions andparamet…
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| 关 键 词： | 混沌 分组密码 分段非线性图象 信息安全 |
| 文章编号： | 1007-1202（2006）06-1520-04 |
| 收稿时间： | 2006-05-20 |
A chaotic block encryption scheme based on the piecewise nonlinear map |
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| WEI Pengcheng LIAO Xiaofeng ZHANG Wei YANG Huaqian.A Chaotic Block Encryption Scheme Based on the Piecewise Nonlinear Map[J].Wuhan University Journal of Natural Sciences,2006,11(6):1521-1524. |
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| Authors: | Wei Pengcheng Liao Xiaofeng Zhang Wei Yang Huaqian |
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| Institution: | (1) College of Computer Science, Chongqing University, 400044 Chongqing, China;(2) Department of Computer and Modern Education Technology, Chongqing Education College, 400067 Chongqing, China |
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| Abstract: | In order to improve communication security, proposed a chaotic block cryptographic scheme based on the coupled piecewise nonlinear map. Using the coupled chaotic systems to generate random binary sequences, a key-dependent shill approach permated the plain-text block and then using the classical chaotic masking technique encrypted the plain-text block. Simulation results show that the proposed algorithm has excellent cryptographic properties such as diffusion and confusion properties and it can resist the know plaintext attacks and chosen plain-text attacks. |
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| Keywords: | chaos block cipher piecewise nonlinear map |
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