Title
Privacy preserving distributed optimization using homomorphic encryption.
Abstract
This paper studies how a system operator and a set of agents securely execute a distributed projected gradient-based algorithm. In particular, each participant holds a set of problem coefficients and/or states whose values are private to the data owner. The concerned problem raises two questions: how to securely compute given functions; and which functions should be computed in the first place. For the first question, by using the techniques of homomorphic encryption, we propose novel algorithms which can achieve secure multiparty computation with perfect correctness. For the second question, we identify a class of functions which can be securely computed. The correctness and computational efficiency of the proposed algorithms are verified by two case studies of power systems, one on a demand response problem and the other on an optimal power flow problem.
Year
DOI
Venue
2018
10.1016/j.automatica.2018.07.005
Automatica
Keywords
DocType
Volume
Distributed optimization,Privacy,Homomorphic encryption
Journal
96
Issue
ISSN
Citations 
96
0005-1098
9
PageRank 
References 
Authors
0.49
17
2
Name
Order
Citations
PageRank
Yang Lu118350.38
Minghui Zhu24412.11