摘要
未来智能电网在为用户提供一个双向互动、高可靠性、高质量的电力服务的同时,也面临着用户隐私泄露、电网敏感数据加密等亟待解决的问题,文中首先分析了当前电网数据结构及特征,得出威胁电网数据安全的几个因素—密文数据访问、敏感数据获取以及完整性数据的测试问题。其次讨论了几项目前数据加密技术—对称、非对称加密、属性粒度加密,在论证了其在保护数据隐私安全方面的良好性能之后发现了中心服务器在数据处理方面的诸多瓶颈,如:服务器端不能对不同类型数据进行比较、划分,也无法实现投影操作,多表查询生成很多伪连接。综合上述弊端提出了基于盲签名的数据聚合策略,最后通过实验得出此策略在解决上述问题的同时实现了匿名性,且支持加法、非加法的高效保护机制,证明了该策略在保证智能电网数据安全方面的可行性。
Future smart grid will face the problems to be solved such as leaking user's privacy,encrypting grid sensitive data,etc. while providing users with a two-way interactive,high reliability,high-quality electricity service. This paper derives data security threat to the grid on several factors,such as the cipher text data access,sensitive data acquisition and integrity data test problems after analyzing the structure and characteristics of current grid data. Secondly,discuss several current data encryption technology,such as symmetric,asymmetric encryption,properties granularity encryption,after the demonstration of its good performance in the protection of data privacy security,it also finds many bottlenecks in data processing by central server such as the server side can not compare or divide different types of data,and can not achieve the projection operation either,and multi-table query generates a lot of pseudo-connections. Taking the drawbacks of the programs mentioned above,we propose the data polymerization strategy based on blind signature,finally solve the above problems through the experimental results of this strategy and achieve the protection mechanisms including anonymity,addition,non-addition supported,which proves the feasibility of this strategy in ensuring the data security for smart grid.
出处
《电测与仪表》
北大核心
2015年第13期105-110,共6页
Electrical Measurement & Instrumentation
基金
吉林省教育厅项目(2014317
2014309)
吉林省科技厅科技发展计划项目(20130206049G X)
吉林省发改委项目(2013118831)
长春市科技局项目(2013266)
关键词
智能电网
数据安全
聚合
匿名
smart grid
data security
polymerization
anonymity