AggFT: Low-Cost Fault-Tolerant Smart Meter Aggregation with Proven Termination and Privacy

02/18/2021
by   Günther Eibl, et al.
0

Smart meter data aggregation protocols have been developed to address rising privacy threats against customers' consumption data. However, these protocols do not work satisfactorily in the presence of failures of smart meters or network communication links. In this paper, we propose a lightweight and fault-tolerant aggregation algorithm that can serve as a solid foundation for further research. We revisit an existing error-resilient privacy-preserving aggregation protocol based on masking and improve it by: (i) performing changes in the cryptographic parts that lead to a reduction of computational costs, (ii) simplifying the behaviour of the protocol in the presence of faults, and showing a proof of proper termination under a well-defined failure model, (iii) decoupling the computation part from the data flow so that the algorithm can also be used with homomorphic encryption as a basis for privacy-preservation. To best of our knowledge, this is the first algorithm that is formulated for both, masking and homomorphic encryption. (iv) Finally, we provide a formal proof of the privacy guarantee under failure. The systematic treatment with strict proofs and the established connection to graph theory may also serve as a starting point for possible generalizations and improvements with respect to increased resilience.

READ FULL TEXT
POST COMMENT

Comments

There are no comments yet.

Authors

page 1

07/27/2020

Bernoulli Meets PBFT: Modeling BFT Protocols in the Presence of Dynamic Failures

The publication of the pivotal state machine replication protocol PBFT l...
09/24/2021

Invited Paper: Failure is (literally) an Option: Atomic Commitment vs Optionality in Decentralized Finance

Many aspects of blockchain-based decentralized finance can be understood...
01/27/2020

SecEL: Privacy-Preserving, Verifiable and Fault-Tolerant Edge Learning for Autonomous Vehicles

Mobile edge computing (MEC) is an emerging technology to transform the c...
02/14/2019

Security and Privacy Preserving Data Aggregation in Cloud Computing

Smart metering is an essential feature of smart grids, allowing resident...
03/14/2019

Fault Tolerant Network Constructors

In this work we examine what graphs (networks) can be stably and distrib...
04/16/2022

Fault-Tolerant Multiparty Session Types (Technical Report)

Multiparty session types are designed to abstractly capture the structur...
This week in AI

Get the week's most popular data science and artificial intelligence research sent straight to your inbox every Saturday.