基于离散混沌映射的光纤通信数据置乱加密研究

Research on scrambled encryption of optical fiber communication data based on discrete chaotic map

光纤通信数据一次加密并不能使所有数据呈现置乱状态,数据安全性依旧比较差,所以研究基于离散混沌映射的光纤通信数据置乱加密方法。对原始光纤通信数据展开小波分解,根据骑士巡游理论以及小波子带的特点将全部小波系数置乱,完成光纤通信数据置乱。通过离散混沌映射和Sine映射的离散混沌系统构建混沌序列,利用混沌序列对数据进行一次加密处理,采用位置矩阵对光纤通信数据展开二次加密处理,实现光纤通信数据置乱加密。实验结果表明,所提方法可以有效提升光纤通信数据的安全性,数据加密效果和保密性能良好。

One encryption of fiber optic communication data cannot cause all data to appear in a scrambled state,and data security is still relatively poor.Therefore,a fiber optic communication data scrambling encryption method based on discrete chaotic mapping is studied.Wavelet decomposition is performed on the original fiber optic communication data,and all wavelet coefficients are scrambled based on the Knight's Patrol Theory and the characteristics of wavelet subbands to complete the scrambling of fiber optic communication data.By constructing a chaotic sequence using discrete chaotic mapping and Sine mapping,the data is encrypted once using the chaotic sequence,and the fiber optic communication data is encrypted twice using a position matrix to achieve scrambled encryption of fiber optic communication data.The experimental results show that the proposed method can effectively improve the security of fiber optic communication data,with good data encryption and confidentiality performance.