耦合帐篷映象格子系统性能分析  

Performance Analysis of Coupled Tent Map Lattices System

作　　者：刘建东[1] 王夏辉[1] 赵晨[1] 王业铨[1] 

机构地区：[1]北京石油化工学院信息工程学院,北京102617

出　　处：《系统仿真学报》2012年第12期2540-2544,共5页Journal of System Simulation

基　　金：北京市自然科学基金(4112018)

摘　　要：耦合映象格子系统将混淆和扩散很好地结合在一起,这种结合可以被用来设计Hash函数及序列密码,极具密码学应用价值,而耦合映象格子系统参数直接影响密码学性能.选用帐篷映射作为耦合映象格子系统的非线性函数,通过数值仿真详细分析系统参数变化对耦合映象格子系统所产生序列的随机特性、差值分布特性、相空间结构、不变分布特性、序列复杂性、Lyapunov指数、自相关特性、互相关特性等的影响,为密码系统设计提供参考。Coupled Tent Map Lattices system （CML） has made a good combination between confusion and diffusion, which can be well adopted in the design for Hash function and sequential cipher and possesses high value in cryptographic application. Whereas, Coupled Tent Map Lattices system parameters cast a direct influence on cryptographic performance. Tent map was chosen as the non-linear function of coupled map lattices and a detailed analysis of the influence of system parameter changes was conducted on random feature, differential distribution feature, phase space structure, invariant distribution feature, complexity, Lyapunov exponent, auto-correlation, and cross-correlation of the sequence generated by CML, to serve as a reference for cryptographic system design.

关 键 词：时空混沌 耦合映象格子 帐篷映射 序列 密码 

分 类 号：TP301.5[自动化与计算机技术—计算机系统结构]