Title
Publicly Verifiable Private Aggregation of Time-Series Data
Abstract
Aggregation of time-series data offers the possibility to learn certain statistics over data periodically uploaded by different sources. In case of privacy sensitive data, it is desired to hide every data provider's individual values from the other participants (including the data aggregator). Existing privacy preserving time-series data aggregation schemes focus on the sum as aggregation means, since it is the most essential statistics used in many applications such as smart metering, participatory sensing, or appointment scheduling. However, all existing schemes have an important drawback: they do not provide verifiable outputs, thus users have to trust the data aggregator that it does not output fake values. We propose a publicly verifiable data aggregation scheme for privacy preserving time-series data summation. We prove its security and verifiability under the XDH assumption and a widely used, strong variant of the Co-CDH assumption. Moreover, our scheme offers low computation complexity on the users' side, which is essential in many applications.
Year
DOI
Venue
2015
10.1109/ARES.2015.82
International Conference on availability, reliability and security
Keywords
Field
DocType
data aggregation,verifiability,privacy,time-series data
Data mining,Computer science,Scheduling (computing),Computer security,Cryptography,Server,Upload,Information security,Verifiable secret sharing,Data aggregator,Participatory sensing
Conference
Citations 
PageRank 
References 
1
0.37
15
Authors
5
Name
Order
Citations
PageRank
Bence Gabor Bakondi110.37
Andreas Peter223320.57
Maarten H. Everts314810.63
Pieter Hartel41159115.28
Willem Jonker564055.71