数据置乱处理的光纤通信系统加密机制  

Encryption mechanism of optical fiber communication system based on data scrambling

作　　者：曾国庆 龚晓雪 李文娟 陈艳 潘显兵 ZENG Guoqing;GONG Xiaoxue;LI Wenjuan;CHEN Yan;PAN Xianbin(Department of the internet of things,Chongqing College of mobile communication,Chongqing 401520,China)

机构地区：[1]重庆移通学院,重庆401520

出　　处：《激光杂志》2022年第7期149-153,共5页Laser Journal

基　　金：重庆市教育委员会科学技术研究项目(No.KJQN202002401)。

摘　　要：以具有初值敏感性、类随机的混沌系统为基础,研究数据置乱处理的光纤通信系统加密机制,降低恶意攻击击中次数,为光纤通信系统的信息安全提供保障。基于一维Logistic映射和k阶Chebyshev映射两种混沌系统,生成二维混沌置乱矩阵,使用该矩阵加密光纤通信系统产生的星座图中各星座点,利用两种混沌系统生成的混沌序列,加密串并变换引进导频的数据,实现光纤通信系统的双重加密。实验结果表明:在NIST测试中,该机制的最大P值为0.9875,生成的混沌序列具有很强的随机性,可提高光纤通信系统加密能力;不同信噪比下,该机制的误码率始终保持最高,光纤通信系统加密效果优势明显;恶意攻击行为的总击中次数仅有4次,最高防守率高达100%,安全性极高。Based on the random-like chaotic system with initial value sensitivity,the encryption mechanism of optical fiber communication system with data scrambling processing is studied to reduce the number of malicious attack hits and provide information security for optical fiber communication system.Based on the two chaotic systems of one-dimensional logistic mapping and k-order Chebyshev mapping,a two-dimensional chaotic chaotic matrix is generated,and the constellation points in the constellation chart generated by the optical fiber communication system are encrypted using the chaotic sequence generated by the two chaotic systems,the data introduced by the string is encrypted and transformed,and the double encryption of the optical fiber communication system is realized.Experimental results show that in the NIST test,the maximum P-value of the mechanism is 0.9875,and the generated chaotic sequence has a strong randomness,which can improve the encryption ability of the optical fiber communication system;under different signal-to-noise ratios,the bit error rate of the mechanism is always the highest,and the encryption effect of the optical fiber communication system is obviously superior;the total number of malicious attacks is only 4 times,the maximum defense rate is as high as 100%,and the security is extremely high.

关 键 词：数据置乱处理 光纤通信系统 加密机制 LOGISTIC映射 CHEBYSHEV映射 混沌置乱矩阵 

分 类 号：TN929[电子电信—通信与信息系统]