| 一类数字混沌保密语音通信系统的保密性能分析 |
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| 引用本文： | 耿?,郑德玲,赵林惠. 一类数字混沌保密语音通信系统的保密性能分析[J]. 北京科技大学学报, 2001, 23(3): 287-292 |
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| 作者姓名： | 耿? 郑德玲 赵林惠 |
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| 作者单位： | 北京科技大学信息工程学院, |
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| 基金项目： | 国家自然科学基金;69772041; |
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| 摘 要： | 分析了一类数字混沌保密语音通信系统在回归映射攻击，相空间重构攻击，泄密攻击下的保密性能，实验和仿真表明基于数字混沌的保密语音通信系统比基于连续流混沌的保密语音通信系统有更强的保密性能，最后，提出了分时映射多刀开关及同时多映射复合的高维混沌等，以进一步提高保密性能。
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| 关 键 词： | 数字混沌 保密通信 保密性 回归映射 相空间重构 语音通信系统 高维混沌 |
| 修稿时间： | 2000-10-10 |
Analysis on Security of a Secure Speech Communication System Based on Digital Chaos |
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| ZHAO Geng,ZHENG Deling,ZHAO Linhui. Analysis on Security of a Secure Speech Communication System Based on Digital Chaos[J]. Journal of University of Science and Technology Beijing, 2001, 23(3): 287-292 |
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| Authors: | ZHAO Geng ZHENG Deling ZHAO Linhui |
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| Abstract: | Analysis on security of a secure speech communication system based on digital chaos is given, which is attacked through regression maps and phase space reconstructing and so on. Experimental and simu- lative results turn out the security of communication systems based on digital chaos is better than that based on continuous flow chaos. In the end, time-sharing maps and contemporary multi-maps mised and piecewise non- linear maps are presented to enhancing security. |
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| Keywords: | digital chaos secure communication security regression maps phase space reconstructing |
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