【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。更多还原

【Abstract】 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 analysis 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.更多还原