| A Secret Sharing Featured Secure Communication System Based on Dual Synchronization of Chaos in Colpitts Circuits |
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| 作者姓名： | 范燕 史治国 冉立新 陈抗生 |
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| 作者单位： | Dept. of Information and Electronic Eng. Zhejiang Univ. Hangzhou 310027 China，Dept. of Information and Electronic Eng. Zhejiang Univ. Hangzhou 310027 China，Dept. of Information and Electronic Eng. Zhejiang Univ. Hangzhou 310027 China，Dept. of Information and Electronic Eng. Zhejiang Univ. Hangzhou 310027 China |
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| 基金项目： | NationalNaturalScienceFoundationofChina(No.60201101) |
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| 摘 要： | Introduction Synchronizationofchaoshasrecentlyattract-edgreatinterestbecauseofitspotentialapplica-tionsinsecurecommunications1]andspreadspec-trumcommunications.Inasecurecommunication system,itcanbeusedforsharingtheidentical chaosinthetransmitterandreceiverasacrypto-graphiccode.Synchronizationofchaosinonewaycoupled onepairchaoticcircuitshasbeenstudiedinalarge volumeofliteratures2-4].Inrecentyears,anew conceptofchaossynchronization,namely“dual synchronizationofchaos”,israised5].Dualsyn-chr…
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| 关 键 词： | 通信系统 同步化 网络安全 混沌理论 |
| 文章编号： | 1007-1172（2006）02-0158-07 |
| 收稿时间： | 2005-10-10 |
A Secret Sharing Featured Secure Communication System Based on Dual Synchronization of Chaos in Colpitts Circuits |
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| FAN Yan,SHI Zhi-guo,RAN Li-xin,CHEN Kang-sheng.A Secret Sharing Featured Secure Communication System Based on Dual Synchronization of Chaos in Colpitts Circuits[J].Journal of Shanghai Jiaotong university,2006,11(2):158-164,171. |
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| Authors: | FAN Yan SHI Zhi-guo RAN Li-xin CHEN Kang-sheng |
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| Abstract: | A novel digital secure communication system employing dual synchronization of chaos in two pairs of Colpitts circuits is proposed. The binary information to be transmitted is firstly modulated by digital modulation scheme, and then mixed together with two chaotic waveforms generated by two Colpitts circuits with different circuit parameters. Thus the combined (and encrypted) signal is transmitted through an additive white Gauss noise (AWGN) channel. In the receiver, the binary message can be recovered only when the parameters of the two Colpitts circuits are known. If the parameters of the two Colpitts circuits are owned by two different users, this can be viewed as a (2,2) threshold scheme. Based on large amount of simulations, the bit error rate (BER) performance of this communication scheme is presented. |
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| Keywords: | secret sharing dual synchronization of chaos Colpitts circuits |
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