基于密文属性加密的发变组故障录波数据访问控制方法研究  

Research on Access Control Method of Fail-Group Fault Recording Data Based on Ciphertext Attribute Encryption

作　　者：黎亦凡 郭一鸣 高琦 欧晓勇 姜帆 LI Yifan;GUO Yiming;GAO Qi;OU Xiaoyong;JIANG Fan(Information and Telecommunication Company,State Grid Shaanxi Electric Power Co.Ltd.,Xi'an Shaanxi 710004,China;State Grid Network Security(Beijing)Technology Co.,Ltd.,Beijing 102206,China)

机构地区：[1]国网陕西省电力有限公司信息通信公司,陕西西安710004 [2]国网思极网安科技(北京)有限公司,北京102206

出　　处：《电子器件》2024年第5期1355-1361,共7页Chinese Journal of Electron Devices

基　　金：国网陕西省电力有限公司科技项目(5226XT220001)。

摘　　要：新型电力系统发电机-变压器组(新型发变组)发生故障时,由于其包含多个方面的数据,造成数据量较大,为减少访问控制的存储开销,基于密文属性加密提出了新型发变组故障录波数据访问控制方法。对数据存储空间密文进行去重处理,计算数据明文哈希值,在扩展位下对向量进行加密处理,实现密文的重复检验。分类处理新型发变组故障录波数据,设置新型发变组故障录波数据访问权限,在文件发布与数据访问之间完成数据的加密与解密,同时设置密钥签名以及验证机制,基于密文属性设计数据访问控制算法。通过实验数据可知,密文属性加密方法分类处理得到故障录波数据的累计贡献率为87.2%,且存储开销较小,证明了所提方法的优越性。When a new generator transformer unit in power system breaks down,it contains many aspects of data,resulting in a large amount of data.In order to reduce the storage overhead of access control,a new access control method for fault recording data of generator transformer unit based on ciphertext attribute encryption is proposed.The ciphertext in the data storage space is deduplicated,the data plaintext Hash value is calculated,and the vector is encrypted under the extension bit to realize the repeated verification of the ciphertext.The fault recording data of the new generator transformer unit,are classified and processed the access authority of the fault recording data of the new generator transformer unit is set,the encryption and decryption of the data between the file release and data access is completed,the key signature and verification mechanism are set,and the data access control algorithm is designed based on the ciphertext attribute.The experimental data show that the cumulative contribution rate of fault recording data obtained by classified processing of ciphertext attribute encryption method is 87.2%,and the storage overhead is small,which proves the superiority of the proposed method.

关 键 词：密文属性加密 新型发变组 故障录波数据 访问控制方法 密文去重 

分 类 号：TM744[电气工程—电力系统及自动化] TP309.7[自动化与计算机技术—计算机系统结构]