提高混沌同步保密通信安全性的設(shè)計(jì)方案研究
Research on Chaotic Synchronized Secure Communication Schemes to Improve Security
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摘要: 在分析幾種典型的混沌同步保密通信方案及針對(duì)混沌同步保密通信的分析破譯方法的基礎(chǔ)上，研究了一個(gè)新的基于Lorenz方程的主動(dòng)一被動(dòng)同步保密通信方案，其特點(diǎn)是具有動(dòng)態(tài)密鑰，從而對(duì)上述攻擊方法具有抗破譯能力。計(jì)算機(jī)仿真實(shí)驗(yàn)和安全性測(cè)試分析結(jié)果均表明，該方案的同步效果好、安全性高，達(dá)到用基于相空間重構(gòu)、基于混沌同步的分析方法難以破譯的效果。
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關(guān)鍵詞:
- 混沌; 保密通信; 同步; 破譯; 安全性
Abstract: The security of several typical chaotic synchronized secure communication schemes , as well as the respective unmasking methods are studied to find the way to improve the security. A new secure communication scheme based on active-passive decomposition using parameters perturbation technique, which makes it has a kind of dynamic secrete key, is analyzed in this paper. The dynamic secrete key contributes to the capacity against the unmasking methods. Computer simulation and security test results demonstrate that the scheme is high in security and good in synchronization properties , and that it is safe to the attack of the unmasking methods mentioned in this paper. -
方錦清.非線性系統(tǒng)中混沌控制方法、同步原理及其應(yīng)用前景[J].物理學(xué)進(jìn)展,1996,16(2):137-201.[2]翁貽方,Pei Yu.混沌同步原理及其在保密通信中的應(yīng)用[J].北京輕工業(yè)學(xué)院學(xué)報(bào),2000,18(1):47-56.[3]Short K M. Step toward unmasking secure communications[J].Int. J. Bifur. Chaos.1994, 4(4):959-977[4]Short K M. Unmasking a modulated chaotic communications scheme[J].Int. J. Bifur. Chaos.1996, 6(2):367-375[5]Perez G. Extracting messages masked by chaos [J].Physical Review Letters.1995, 74(11):1970-1973[6]Carroll T L, Pecora L M. Cascading synchronized chaotic systems[J]. Physical Review D,, 1993,67(1): 126-140.[7]Parlitz U, Junge L, Kocarev L. Synchronization-based parameter estimation from time series[J].Physical Review E.1996, 54(6):6253-6259[8]翁貽方,鞠磊.高安全性混沌同步保密通信方案設(shè)計(jì)[J].通信學(xué)報(bào).2003,24(2):44-50.[9]翁貽方.鞠磊.變參數(shù)混沌同步保密通信方案設(shè)計(jì)[J].信息與控制,2003,32(2):128-131. -
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