多层实时网络数据流动态加密方法设计  

Design of Dynamic Encryption Method for Multi-Layer Real-Time Network Data Flow

作　　者：刘东然 谢永红[2] 耿娟平 戚永军[3] LIU Dong-ran;XIE Yong-hong;GENG Juan-ping;QI Yong-jun(Information Technology Center,North China Institute of Aerospace Engineering,Langfang Hebei 065000,China;School of Computer and Communication Engineering,University of Science and Technology Beijing,Beijing 100080,China;School of Computer Science and Engineering,North China Institute of Aerospace Engineering,Langfang Hebei 065000,China)

机构地区：[1]北华航天工业学院信息技术中心,河北廊坊065000 [2]北京科技大学计算机与通信工程学院,北京100080 [3]北华航天工业学院计算机学院,河北廊坊065000

出　　处：《计算机仿真》2024年第11期403-407,共5页Computer Simulation

基　　金：科技创新2030-重大项目(2020AAA0108703);河北省廊坊市市厅级课题(2020013053);北华航天工业学院博士基金项目(BKY-2022-09)。

摘　　要：由于多层实时网络数据流波频变动较强、存在噪声影响,导致网络数据动态加密误差较大。为了确保网络数据在传输过程中的安全性,提出一种基于微型加密算法(Tiny Encryption Algorithm,TEA)实现网络数据流动态加密。建立多层实时网络数据流的频繁项集合,采用自适应学习算法提取其不同层网络数据流频谱块和动态时间,计算超频噪声系数,并通过调节节点带宽波束,实现数据流频繁项的噪声干扰抑制。将多层网络数据流按照二进制数学形式表达并分组,计算每一层中每一组数据流的明文,通过密钥规则查找与该明文对应的二进制位数加密密钥,不断迭代添加密文直至每层每组全部完成,完成有效加密。实验结果证明,所提方法加密精准度高,空间占比少、数据加密传输时延低于250ms,综合性能表现优异,具有一定的实用价值。Currently,the strong fluctuation of wave frequency and noise in multi-layer real-time network data streams may lead to significant errors during the dynamic encryption of network data.In order to ensure the security of network data during transmission,this paper proposed a tiny encryption algorithm(Tiny Encryption Algorithm,TEA)for dynamic encryption of network data streams.Firstly,the set of frequent items of multi-layer real-time network data streams was constructed.Secondly,an adaptive learning algorithm was used to extract spectrum blocks and dy-namic time in different layers of network data streams.Then,the super-frequency noise coefficient was calculated,so that the noise interference suppression of frequent items in data streams was achieved by adjusting the node bandwidth beam.Next,the multi-layer network data streams were expressed in binary mathematical form and grouped.Mean-while,the plaintext of each group of data streams in each layer was calculated.Moreover,key rules were adopted to search for binary bit encryption keys corresponding to the plaintext.Furthermore,the ciphertext was continuously add-ed until all layers and groups were completed.Finally,effective encryption was achieved.Experimental results show that the proposed method has high encryption accuracy and low space occupation.In addition,the transmission delay is less than 250ms.In general,the method has excellent comprehensive performance and a certain practical value.

关 键 词：多层实时网络 数据流 动态加密 超频噪声系数 二进制数学 

分 类 号：TP224[自动化与计算机技术—检测技术与自动化装置]