一種增強混沌系統(tǒng)保密性能的新方法
A New Method for Improving the Encryption Property of the Chaotic System
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摘要: 該文從研究混沌加密系統(tǒng)輸出信號的保密性能角度出發(fā)，對典型的Lorenz系統(tǒng)進行了分析。研究發(fā)現(xiàn)，大采樣間隔對增強混沌系統(tǒng)的保密性能有重要影響。然后用Volterra-wiener-Korengerg(VwK)模型非線性檢驗方法對上述結(jié)論進行了檢驗，最后通過計算機仿真得出相同的結(jié)論。
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關(guān)鍵詞:
- 混沌加密; 時間序列分析; VWK檢驗
Abstract: In this paper, the encryption property of the chaotic system in terms of the techniques developed in the analysis of chaotic time series is studied. Then, the typical Lorenz system is analyzed. It is found that the larger sampling interval is of huge help for improving the encryption property. The VWK(Volterra-Wiener-Korengerg) method is used to analyze and test. Finally, simulation on the computer gets the same result. -
[1] Yang T, Yang L B, Yang C M. Cryptanalyzing chaotic secure communications using return maps[J].Physics Letters A.1998, 245:495-510 -
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