高级加密标准算法在智能电网数据保护中的应用分析  

Application Analysis of AES Algorithm in Data Protection in Smart Grid

作　　者：冯瑞珏 曾献煜 刘飘 杨树丰 李轩东 FENG Ruijue;ZENG Xianyu;LIU Piao;YANG Shufeng;LI Xuandong(College of Electrical Engineering,Guangzhou City University of Technology,Guangzhou,Guangdong 510800,China;Dongguan Power Supply Bureau of Guangdong Power Grid Co.,Ltd.,Dongguan,Guangdong 523008,China)

机构地区：[1]广州城市理工学院电气工程学院,广东广州510800 [2]广东电网有限责任公司东莞供电局,广东东莞523008

出　　处：《广东电力》2021年第6期98-104,共7页Guangdong Electric Power

基　　金：中国南方电网有限责任公司科技项目(GDKJXM20202071);华南理工大学广州学院杰出青年教师项目(JQ180001);广东省大学生创新创业训练项目(202012617040)。

摘　　要：针对智能电网在进行数据传输与存储过程中存在电力信息泄露和遭受恶意篡改的风险,分析数据隐私信息泄露的途径和加密算法应用于智能电网的情况。以国际经典的对称加密算法——高级加密标准(advanced encryption standard,AES)算法为例,从OpenSSL函数库将算法单独抽取出来并移植入STM32单片机,利用Visio Studio2017+Qt软件开发测试界面,对算法进行性能测试。从密钥长度和加密模式2个方面分析影响电力信息数据加解密耗时的因素,结果表明:密钥长度与加解密耗时呈正比;加密模式中计算器模式的均衡性较好。In view of the risks of power information leakage and malicious tampering in the process of data transmission and storage in the smart grid,this paper analyzes the way of data privacy information leakage and the application of international classic encryption algorithms in the smart grid.Taking the classical symmetric encryption algorithm advanced encryption standard(AES)as an example,the paper extracts the algorithm separately from the OpenSSL function library and transplants it to the STM32 single-chip.By using the Visio Studio2017+Qt software,it tests the performance of the algorithmto develop the test interface.In two aspects of key length and encryption mode,the paper also analyzes the factors affecting the time-consuming encryption and decryption of user information data.The test analysis result shows that the key length is proportional to the time-consuming,and the balance of computer mode in the encryption mode is preferable.

关 键 词：信息安全 信息加密 AES STM32单片机 智能电网 

分 类 号：TM769[电气工程—电力系统及自动化] TP393.08[自动化与计算机技术—计算机应用技术]