| 基于双耦合驱动模型的时空混沌流密码系统 |
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| 引用本文： | 郭晶,袁坚,王剑,山秀明,任勇.基于双耦合驱动模型的时空混沌流密码系统[J].清华大学学报(自然科学版),2009(8). |
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| 作者姓名： | 郭晶 袁坚 王剑 山秀明 任勇 |
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| 作者单位： | 清华大学电子工程系复杂工程系统实验室; |
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| 基金项目： | 国家自然科学基金资助项目(60674048) |
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| 摘 要： | 为提高时空混沌流密码系统的抗误码能力,该文研究了这一系统的误码扩散特性,得到驱动序列中多个误码的扩散范围与系统参数的关系。提出一种基于双耦合驱动模型的时空混沌流密码系统,利用相互耦合的混沌系统生成驱动序列,并在接收端进行误码检测处理,对模型结构、误码检测、误码处理作了详细的设计,达到提高系统抗误码能力的目的。理论分析和仿真结果表明,该文提出的双耦合驱动模型可以显著地提高时空混沌流密码系统的抗误码能力。
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| 关 键 词： | 时空混沌 流密码 误码扩散 双耦合驱动 误码检测 |
Spatiotemporal chaotic stream cipher system based on the coupled drivers model |
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| GUO Jing,YUAN Jian,WANG Jian,SHAN Xiuming,REN Yong.Spatiotemporal chaotic stream cipher system based on the coupled drivers model[J].Journal of Tsinghua University(Science and Technology),2009(8). |
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| Authors: | GUO Jing YUAN Jian WANG Jian SHAN Xiuming REN Yong |
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| Institution: | Complex Engineered Systems Laboratory;Department of Electronic Engineering;Tsinghua University;Beijing 100084;China |
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| Abstract: | The error propagation characteristics of a spatiotemporal chaotic stream cipher system were analyzed to improve the error resistance.The relationship between the system parameters and the error propagation was then used to develop a spatiotemporal chaotic stream cipher system based on a coupled-driven model.In this system,the driver signals are generated by two coupled chaotic systems,with error detection and correction at the receiver.Theoretical analyses and simulations show that the model significantly i... |
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| Keywords: | spatiotemporal chaos stream cipher error propagation coupled-drivers error detection |
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