一种Logistic密钥及其性能分析  

Logistic-based Encryption Key and Its Performance Analysis

作　　者：贾爱茹[1] 卿朝进[2] 刘田[2] 查光明[2] 

机构地区：[1]天津铁道职业技术学院,天津300240 [2]电子科技大学通信抗干扰技术国家重点实验室,四川成都610054

出　　处：《现代电子技术》2010年第19期101-105,共5页Modern Electronics Technique

摘　　要：混沌系统是一种高复杂度的非线性动态系统,具有对初始条件和混沌参数非常敏感性,以及生成序列的非周期性、宽噪声特性和伪随机性,非常适合保密通信领域。利用Logistic映射并结合混沌加扰方法,构建一种混沌密钥序列,并对构建的混沌密钥序列进行了性能分析。分析和仿真结果表明,构建的密钥序列具有良好的随机性和初值敏感性。The chaotic system is a nonlinear dynamic system with high complexity, which is very sensitive with initial conditions and chaotic parameters. Meanwhile, the sequence generated by the chaotic system is non-periodic, wide noise and pseudo-randomness. Therefore, the chaotic system is very suitable for secure communication. Based on the double Logistic map and chaos disturbance, a method to generate encryption key is proposed in this paper. Moreover, the performance analy- sis of the encryption key generated by proposed method is presented. The analysis and simulation results show that the encryption key is randomness and initial value sensitivity.

关 键 词：密钥 混沌 LOGISTIC 加密 

分 类 号：TN914-34[电子电信—通信与信息系统]