| New method of improving the security of the hyperchaotic cryptosystem |
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| 作者姓名： | 谢鲲 雷敏 冯正进 |
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| 作者单位： | Inst .of Mechatronic Control System，Shanghai Jiaotong Univ，Inst .of Mechatronic Control System，Shanghai Jiaotong Univ，Inst .of Mechatronic Control System，Shanghai Jiaotong Univ Shanghai 200030，P. R. China，Shanghai 200030，P. R. China，Shanghai 200030，P. R. China |
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| 基金项目： | This project was supported by National“985”Engineering of China . |
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| 摘 要： | 1 .INTRODUCTIONU.Parlitz used surrogate data analysis for unmaskingchaotic communication systems1]. He thinks thatone possibility to i mprove the privacy of chaotic en-codingis to use (very) high di mensional chaotic at-tractors for encrypting a given message2].Firstly, based on the active-passive decomposi-tion method, he decomposed a hyperchaotic systeminto transmitter and receiverx.1=-x2+ax1x.m= xm-1-xm+1, m =2,…,M-1x.M=ε+bxM( xM-1-d) (1)wherea=0·29, b=4, d=2,ε=0·1 . ForM=11 ,…
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New method of improving the security of the hyperchaotic cryptosystem |
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| Xie Kun,Lei Min,Feng Zhengjin.New method of improving the security of the hyperchaotic cryptosystem[J].Journal of Systems Engineering and Electronics,2005,16(3). |
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| Authors: | Xie Kun Lei Min Feng Zhengjin |
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| Institution: | Inst.of Mechatronic Control System,Shanghai Jiaotong Univ.,Shanghai 200030,P.R.China |
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| Abstract: | In chaotic cryptosystems, using (very) high dimensional chaotic attractors for encrypting a given message maybe can improve the privacy of chaotic encoding. A kind of hyperchaotic systems are studied by using some classical methods. The results show that for improving the security of the chaotic cryptosystems, besides the high dimension, the sub Nyquist sampling interval (SI) is also necessary. Then, we verify this result using the methods of time series analysis. |
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| Keywords: | hyperchaotic cryptosystem time series analysis Volterra Wiener Korengerg test surrogate data |
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