MSDA:multi-subset data aggregation scheme without trusted third party  

作　　者：Zhixin ZENG Xiaodi WANG Yining LIU Liang CHANG 

机构地区：[1]Guangxi Key Laboratory of Trusted Software,Guilin University of Electronic Technology,Guilin,541004,China

出　　处：《Frontiers of Computer Science》2022年第1期135-141,共7页中国计算机科学前沿（英文版）

基　　金：This work was supported partly by the National Natural Science Foundation of China(Grant Nos.61162016,62072133,U1811264,U1711263,61966009);the Natural Science Foundation of Guangxi Province(2018GXNSFDA281040,2018GXNSFDA281045);the Innovation Project of Guangxi Graduate Education(YCBZ2020062).

摘　　要：Data aggregation has been widely researched to address the privacy concern when data is published,meanwhile,data aggregation only obtains the sum or average in an area.In reality,more fine-grained data brings more value for data consumers,such as more accurate management,dynamic price-adjusting in the grid system,etc.In this paper,a multi-subset data aggregation scheme for the smart grid is proposed without a trusted third party,in which the control center collects the number of users in different subsets,and obtains the sum of electricity consumption in each subset,meantime individual user’s data privacy is still preserved.In addition,the dynamic and flexible user management mechanism is guaranteed with the secret key negotiation process among users.The analysis shows MSDA not only protects users’privacy to resist various attacks but also achieves more functionality such as multi-subset aggregation,no reliance on any trusted third party,dynamicity.And performance evaluation demonstrates that MSDA is efficient and practical in terms of communication and computation overhead.

关 键 词：multi-subset data aggregation PRIVACY-PRESERVING smart gird dynamic user management 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]