A Lightweight and Privacy-Friendly Data Aggregation Scheme against Abnormal Data

Abnormal electricity data, caused by electricity theft or meter failure, leads to the inaccuracy of aggregation results. These inaccurate results not only harm the interests of users but also affect the decision-making of the power system. However, the existing data aggregation schemes do not consid...

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Main Authors: Jianhong Zhang, Haoting Han
Format: Article
Language:English
Published: MDPI AG 2022-02-01
Series:Sensors
Subjects:
Online Access:https://www.mdpi.com/1424-8220/22/4/1452
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author Jianhong Zhang
Haoting Han
author_facet Jianhong Zhang
Haoting Han
author_sort Jianhong Zhang
collection DOAJ
description Abnormal electricity data, caused by electricity theft or meter failure, leads to the inaccuracy of aggregation results. These inaccurate results not only harm the interests of users but also affect the decision-making of the power system. However, the existing data aggregation schemes do not consider the impact of abnormal data. How to filter out abnormal data is a challenge. To solve this problem, in this study, we propose a lightweight and privacy-friendly data aggregation scheme against abnormal data, in which the valid data can correctly be aggregated but abnormal data will be filtered out during the aggregation process. This is more suitable for resource-limited smart meters, due to the adoption of lightweight matrix encryption. The automatic filtering of abnormal data without additional processes and the detection of abnormal data sources are where our protocol outperforms other schemes. Finally, a detailed security analysis shows that the proposed scheme can protect the privacy of users’ data. In addition, the results of extensive simulations demonstrate that the additional computation cost to filter the abnormal data is within the acceptable range, which shows that our proposed scheme is still very effective.
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spelling doaj.art-6c6bd0cebb8c4170973f3cfe38894b962023-11-23T21:59:45ZengMDPI AGSensors1424-82202022-02-01224145210.3390/s22041452A Lightweight and Privacy-Friendly Data Aggregation Scheme against Abnormal DataJianhong Zhang0Haoting Han1School of Information Sciences and Technology, North China University of Technology, Beijing 100043, ChinaSchool of Information Sciences and Technology, North China University of Technology, Beijing 100043, ChinaAbnormal electricity data, caused by electricity theft or meter failure, leads to the inaccuracy of aggregation results. These inaccurate results not only harm the interests of users but also affect the decision-making of the power system. However, the existing data aggregation schemes do not consider the impact of abnormal data. How to filter out abnormal data is a challenge. To solve this problem, in this study, we propose a lightweight and privacy-friendly data aggregation scheme against abnormal data, in which the valid data can correctly be aggregated but abnormal data will be filtered out during the aggregation process. This is more suitable for resource-limited smart meters, due to the adoption of lightweight matrix encryption. The automatic filtering of abnormal data without additional processes and the detection of abnormal data sources are where our protocol outperforms other schemes. Finally, a detailed security analysis shows that the proposed scheme can protect the privacy of users’ data. In addition, the results of extensive simulations demonstrate that the additional computation cost to filter the abnormal data is within the acceptable range, which shows that our proposed scheme is still very effective.https://www.mdpi.com/1424-8220/22/4/1452data aggregationabnormal datasourcematrix encryptionlightweight
spellingShingle Jianhong Zhang
Haoting Han
A Lightweight and Privacy-Friendly Data Aggregation Scheme against Abnormal Data
Sensors
data aggregation
abnormal data
source
matrix encryption
lightweight
title A Lightweight and Privacy-Friendly Data Aggregation Scheme against Abnormal Data
title_full A Lightweight and Privacy-Friendly Data Aggregation Scheme against Abnormal Data
title_fullStr A Lightweight and Privacy-Friendly Data Aggregation Scheme against Abnormal Data
title_full_unstemmed A Lightweight and Privacy-Friendly Data Aggregation Scheme against Abnormal Data
title_short A Lightweight and Privacy-Friendly Data Aggregation Scheme against Abnormal Data
title_sort lightweight and privacy friendly data aggregation scheme against abnormal data
topic data aggregation
abnormal data
source
matrix encryption
lightweight
url https://www.mdpi.com/1424-8220/22/4/1452
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AT haotinghan alightweightandprivacyfriendlydataaggregationschemeagainstabnormaldata
AT jianhongzhang lightweightandprivacyfriendlydataaggregationschemeagainstabnormaldata
AT haotinghan lightweightandprivacyfriendlydataaggregationschemeagainstabnormaldata