电网匿名交易下实名制智能合约隐私保护方法研究  

Research on Privacy Protection Method of Real Name Smart Contract Under Anonymous Transaction of Power Grid

作　　者：王小亮[1] 邵志敏 赵珂 刘小芸 WANG Xiao-liang;SHAO Zhi-min;ZHAO Ke;LIU Xiao-yun(Weifang Electric Power Supply Company,State Grid Shandong Electric Power Company,Weifang 261021 China;Information and Communication Company,State Grid Shandong Electric Power Company,Jinan 250001 China)

机构地区：[1]国网潍坊供电公司,山东潍坊261041 [2]国网山东省电力公司,山东济南250001

出　　处：《自动化技术与应用》2024年第11期136-139,共4页Techniques of Automation and Applications

基　　金：国网山东省电力公司科技项目资助(2021A-108)。

摘　　要：电网数据中包含大量的用户隐私信息,为保证电网数据安全,在电网匿名交易下研究实名制智能合约隐私保护方法。在文件同步合约中,获取用户初始数据并对其进行加密处理。基于实名制智能合约实现隐私加密,获取同态加密下交易双方用户信息,得到计算节点多项式方程,进行安全多方外包计算,划定集合验证的判断等式,在秘密的重构与解密中,重构隐私加密多项式。设计隐私保护算法,实现电网数据的隐私保护。实验结果显示,该隐私保护方法的智能合约生成速度较快,且其缓存命中率在第1200次请求时就可以达到70%。The power grid data contains a large amount of user privacy information.In order to ensure the security of the power grid data,the real-name smart contract privacy protection method is studied under the anonymous transaction of the power grid.In the file synchronization contract,the user's initial data is obtained and encrypted.Based on the real-name smart contract,privacy encryption is realized,the user information of both parties to the transaction under homomorphic encryption is obtained,and the polynomial equation of the computing node is obtained.Multi-party outsourcing of computing is secured,and the judgment equation for set verification is defined.In the reconstruction and decryption of the secret,the privacy encryption polynomial is reconstructed.Privacy protection algorithm is designed to realize the privacy protection of power grid data.The experimental results show that the smart contract generation speed of this privacy protection method is faster,and its cache hit rate can reach 70%at the 1200th request.

关 键 词：电网匿名交易 实名制 智能合约 隐私保护 数据传输 

分 类 号：TP393.083[自动化与计算机技术—计算机应用技术]