PVF-DA: Privacy-Preserving, Verifiable and FaultTolerant Data Aggregation in MEC  

作　　者：Jianhong Zhang Qijia Zhang Shenglong Ji Wenle Bai 

机构地区：[1]School of Information Sciences and Technology,North China University of Technology,Beijing 100144,China [2]Guizhou University,Guizhou Provincial Key Laboratory of Public Big Data,Guiyang 550025,China [3]Legendsec Information Technology(Beijing)Inc.,Beijing 100085,China

出　　处：《China Communications》2020年第8期58-69,共12页中国通信（英文版）

基　　金：supported by Beijing Natural Science Foundation—Haidian Original Innovation Joint Fund Project Task Book(Key Research Topic)(Nos.L182039);Open Fund of National Engineering Laboratory for Big Data Collaborative Security Technology and the Foundation of Guizhou Provincial Key Laboratory of Public Big Data(No.2019BDKFJJ012)。

摘　　要：As an emergent-architecture, mobile edge computing shifts cloud service to the edge of networks. It can satisfy several desirable characteristics for Io T systems. To reduce communication pressure from Io T devices, data aggregation is a good candidate. However, data processing in MEC may suffer from many challenges, such as unverifiability of aggregated data, privacy-violation and fault-tolerance. To address these challenges, we propose PVF-DA: privacy-preserving, verifiable and fault-tolerant data aggregation in MEC based on aggregator-oblivious encryption and zero-knowledge-proof. The proposed scheme can not only provide privacy protection of the reported data, but also resist the collusion between MEC server and corrupted Io T devices. Furthermore, the proposed scheme has two outstanding features: verifiability and strong fault-tolerance. Verifiability can make Io T device to verify whether the reported sensing data is correctly aggregated. Strong fault-tolerance makes the aggregator to compute an aggregate even if one or several Io Ts fail to report their data. Finally, the detailed security proofs are shown that the proposed scheme can achieve security and privacy-preservation properties in MEC.

关 键 词：MEC data aggregation verifiability PRIVACY-PRESERVING FAULT-TOLERANCE 

分 类 号：TN929.5[电子电信—通信与信息系统]