Logistic-based Encryption Key and Its Performance Analysis

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.