计算机工程2011，Vol.37Issue(19)：12-16,5.DOI:10.3969/j.issn.1000-3428.2011.19.004
级联混沌系统Lyapunov指数研究
Research on Lyapunov Exponent of Cascade Chaos System
摘要
Abstract
According to the encrypt leakage of existing variable parameters cascade chaotic real-time secure communication system which occurs because of the emergence of short periodic state, this paper analyzes the Lyapunov exponents which vary with parameters in cascade system and the security of encryption and decryption in real-time variable parameters cascade chaotic system, points that even all the Lyapunov exponents in every independent subsystem are positive, the Lyapunov exponents in cascade system may be negative, and negative Lyapunov exponents will lead to secret key leakage. According to the problem, it designs a short-range correlation thread for real-time monitoring of system secret key to prevent the occurrence of short period state, result shows that this method can solve the secret key leakage problem.关键词
级联混沌系统/Lyapunov指数/级联子系统/密钥泄漏Key words
cascade chaos system/ Lyapunov exponent/ cascade subsystem/ secret key leakage分类
信息技术与安全科学引用本文复制引用
金建国,魏明军,邸志刚,许广利,贾春荣,赵宏微..级联混沌系统Lyapunov指数研究[J].计算机工程,2011,37(19):12-16,5.基金项目
河北省教育厅自然科学基金资助项目(2008451,2008457) （2008451,2008457）
