I have a dream!(differentially private smart metering)

G Ács, C Castelluccia - International Workshop on Information Hiding, 2011 - Springer
International Workshop on Information Hiding, 2011Springer
This paper presents a new privacy-preserving smart metering system. Our scheme is private
under the differential privacy model and therefore provides strong and provable guarantees.
With our scheme, an (electricity) supplier can periodically collect data from smart meters and
derive aggregated statistics without learning anything about the activities of individual
households. For example, a supplier cannot tell from a user's trace whether or when he
watched TV or turned on heating. Our scheme is simple, efficient and practical. Processing …
Abstract
This paper presents a new privacy-preserving smart metering system. Our scheme is private under the differential privacy model and therefore provides strong and provable guarantees. With our scheme, an (electricity) supplier can periodically collect data from smart meters and derive aggregated statistics without learning anything about the activities of individual households. For example, a supplier cannot tell from a user’s trace whether or when he watched TV or turned on heating. Our scheme is simple, efficient and practical. Processing cost is very limited: smart meters only have to add noise to their data and encrypt the results with an efficient stream cipher.
Springer