Privacy-enhancing distributed protocol for data aggregation based on blockchain and homomorphic encryption
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2021-11
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Abstract
The recent increase in reported incidents of security breaches compromising users' privacy call into question the current centralized model in which third-parties collect and control massive amounts of personal data. Blockchain has demonstrated that trusted and auditable computing is possible using a decentralized network of peers accompanied by a public ledger. Furthermore, Homomorphic Encryption (HE) guarantees confidentiality not only on the computation but also on the transmission, and storage processes. The synergy between Blockchain and HE is rapidly increasing in the computing environment. This research proposes a privacy-enhancing distributed and secure protocol for data aggregation backboned by Blockchain and HE technologies. Blockchain acts as a distributed ledger which facilitates efficient data aggregation through a Smart Contract. On the top, HE will be used for data encryption allowing private aggregation operations. The theoretical description, potential applications, a suggested implementation and a performance analysis are presented to validate the proposed solution.
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Publisher Copyright: Ā© 2021
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Homomorphic encryption , Blockchain , Privacy , Confidentiality , Security , Data aggregation , Homomorphic encryption , Blockchain , Privacy , Confidentiality , Security , Data aggregation , Information Systems , Media Technology , Computer Science Applications , Management Science and Operations Research , Library and Information Sciences , Project ID , info:eu-repo/grantAgreement/EC/H2020/957406/EU/nexT gEneRation sMart INterconnectEd ioT/TERMINET , info:eu-repo/grantAgreement/EC/H2020/957406/EU/nexT gEneRation sMart INterconnectEd ioT/TERMINET , Funding Info , This work has been partially supported by the Basque Country Government under the ELKARTEK program, project TRUSTIND (KK- 2020/00054). It has also been partially supported by the H2020 TERMINET project (GA 957406). , This work has been partially supported by the Basque Country Government under the ELKARTEK program, project TRUSTIND (KK- 2020/00054). It has also been partially supported by the H2020 TERMINET project (GA 957406).
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Regueiro , C , Seco , I , de Diego , S , Lage , O & Etxebarria , L 2021 , ' Privacy-enhancing distributed protocol for data aggregation based on blockchain and homomorphic encryption ' , Information Processing & Management , vol. 58 , no. 6 , 102745 , pp. 102745 . https://doi.org/10.1016/j.ipm.2021.102745