电光混沌排列熵谱指纹特性研究

In this paper, aiming at the problems of insufficient fingerprint space and poor controllability of hardware fingerprint applied in fingerprint authentication technology of optical network, combined with the permutation information analysis method of time series analysis, we propose to use the permutation entropy spectrum of electro-optical chaos as the fingerprint of optical emission equipment. Electro-optical chaos has high complexity, and the hardware parameters are flexible and controllable, which can effectively solve the above problems. The simulation results show that the permutation entropy spectrum of electro-optical chaos has invariance fo time and initial values, and is sensitive to feedback delay in the feedback loop. It can be used as the hardware fingerprint of secure identity authentication system to improve the security of optical network.