电力数据共享抗合谋攻击算法设计  

Design of Anti-Complicity Attack Algorithm for Power Data Sharing

作　　者：单超 邹云峰 刘云鹏 于鹏飞 SHAN Chao;ZOU Yunfeng;LIU Yunpeng;YU Pengfei(State Grid Jiangsu Marketing Service Center,Nanjing 210019,China;State Grid Smart Grid Research Institute Co.,Ltd.,Nanjing 210037,China)

机构地区：[1]国网江苏省电力有限公司营销服务中心,江苏南京210019 [2]国网智能电网研究院有限公司,江苏南京210037

出　　处：《自动化仪表》2023年第7期61-64,69,共5页Process Automation Instrumentation

基　　金：国网江苏省电力有限公司科技基金资助项目(J2021088)。

摘　　要：为提升电力数据共享过程中的抗攻击性能,在数字水印技术的支持下设计了电力数据共享抗合谋攻击算法。采用盲数字水印算法分析数据特性以及可感知度特性。依据特性设计水印选择策略,采用选择策略搜寻到最佳水印嵌入系数。根据该系数,通过编码函数排列初始数字水印顺序,向电力数据嵌入数字水印,并通过水印嵌入算法的逆过程实现电力数据数字水印抽取。利用抗合谋攻击的量化测量模型,测量嵌入数字水印电力数据的共享抗攻击能力。测试结果表明:该算法嵌入的水印完整性最高达到89%,水印篡改率低,能够保障嵌入的水印不易改变,具有较强的抵抗各种攻击的能力。To improve the anti-attack performance in the process of power data sharing,the anti-complicity attack algorithm for power data sharing is designed with the support of digital watermark technology.The blind digital watermark algorithm is used to analyze the data characteristics and the perceptibility characteristics.Based on the characteristics,the watermark selection strategy is designed and the best watermark embedding coefficients are researched using the selection strategy.According to the coefficients,the initial digital watermark order is arranged by the coding function to embed digital watermark into the power data,and the digital watermark extraction of the power data is realized by the inverse process of the watermark embedding algorithm.The quantitative measurement model of anti-complicity attack is used to measure the shared resistance to attack of embedded digital watermark electricity data.The test results show that the algorithm embeds watermark integrity up to 89%,the watermark tampering rate is low,and it can guarantee that the embedded watermark is not easy to change,which has strong resistance to various attacks.

关 键 词：电力数据共享 抗合谋攻击 水印嵌入 水印抽取 数据特性 可感知度 嵌入系数 编码 

分 类 号：TH-3[机械工程]