基于混合国密算法的车载数据安全传输方案  

A Hybrid Chinese National Cryptographic Algorithm Based Solution for Data Encryption and Decryption in Transmission

作　　者：王金全 邓健 和红杰[1] WANG Jinquan;DENG Jian;HE Hongjie(School of Information Science and Technology,Southwest Jiaotong University,Chengdu,Sichuan 610000,China;Zhuzhou CRRC Times Electric Co.,Ltd.,Zhuzhou,Hunan 412001,China)

机构地区：[1]西南交通大学信息科学与技术学院,四川成都610000 [2]株洲中车时代电气股份有限公司,湖南株洲412001

出　　处：《控制与信息技术》2023年第4期73-78,共6页CONTROL AND INFORMATION TECHNOLOGY

摘　　要：在车辆智能运维系统中,地面数据处理平台需要实时采集车辆运行状态数据,用于车辆运行监视和健康状态分析。为确保数据传输内容的安全,文章基于车载状态数据传输的应用场景,结合国密算法SM4与SM9的特点,提出了一套安全的数据传输方案。该方案使用国密SM4算法对明文的车载状态数据实行快速加密,保障了数据的机密性、完整性、抗攻击性和抗干扰性;使用国密SM9算法对SM4的密钥传输进行加密,保障了密钥的保密性、抗攻击性和不可抵赖性等。实验结果表明,相比其他方案,该方案能够同时满足车地数据传输的完整性、保密性和不可抵赖性要求,且在通用性和效率方面表现出色,适用于各类车辆、不同数据处理平台和多种通信网络环境,具备高吞吐量和低资源消耗的特点,应用前景广泛。In a vehicle intelligent operation and maintenance system,the ground data processing platform needs to collect vehicle operational status data in real time for vehicle monitoring and health status analysis.To ensure the security of the transmitted data,this paper proposes a secure data transmission solution based on the application scenario of in-vehicle status data transmission,combining the features of chinese national cryptographic algorithms SM4 and SM9.This solution utilizes SM4 to achieve fast encryption of the plaintext in-vehicle status data,ensuring the confidentiality,integrity,resistance to attacks,and resistance to interference of the data.Additionally,SM9 is used to encrypt the key transmission of SM4,ensuring the confidentiality,resistance to attacks,and non-repudiation of the keys.Experimental results show that compared with other solutions,the proposed solution not only guarantees the integrity,confidentiality and non-repudiation of vehicle-to-ground data transmission,but also exhibits good versatility and high efficiency.It is applicable for various types of vehicles,data processing platforms and communication network environments,featuring high throughput,low resource consumption and extensive application in the future.

关 键 词：车载数据 数据安全 混合加密算法 国密SM4 国密SM9 

分 类 号：TN919.3[电子电信—通信与信息系统]