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PETchain: A blockchain-based privacy enhancing technology

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dc.contributor.author Javed, Ibrahim Tariq
dc.contributor.author Alharbi, Fares
dc.contributor.author Margaria, Tiziana
dc.contributor.author Crespi, Noel
dc.contributor.author Qureshi, Kashif Naseer
dc.date.accessioned 2021-03-23T15:15:20Z
dc.date.available 2021-03-23T15:15:20Z
dc.date.issued 2021
dc.identifier.uri http://hdl.handle.net/10344/9904
dc.description peer-reviewed en_US
dc.description.abstract With the increasing use of smart devices and sensors, enormous amounts of data are being generated continuously. The data is commonly stored in centralized cloud platforms and consumed by different services. The data is indeed a valuable resource for many service providers who provide advanced features and utilities to their subscribers. However, user data include personal and sensitive information which can be misused in many ways. There is no way for a subscriber to confirm that their service provider is compliant with data privacy regulations. The existing privacy enhancing techniques such as anonymization and differential privacy substantially reduce data usability while ensuring privacy. Therefore, it remains essential to provide a feasible solution that allows service providers to take advantage of user data while guaranteeing their privacy. In this paper, we present PETchain: a novel privacy enhancing technology using blockchain and smart contract. In PETchain, data is stored securely in a distributed manner and processed in a user-selected trusted execution environment. Users deploy the smart contract that allows them to decide whether and how their data can be exploited by service providers. The feasibility and performance of PETchain are presented by implementing PETchain over a consortium Ethereum blockchain. en_US
dc.language.iso eng en_US
dc.publisher IEEE en_US
dc.relation.ispartofseries IEEE Access;9 41129
dc.subject Blockchain en_US
dc.subject Ethereum en_US
dc.subject privacy enhancing technology en_US
dc.title PETchain: A blockchain-based privacy enhancing technology en_US
dc.type info:eu-repo/semantics/article en_US
dc.type.supercollection all_ul_research en_US
dc.type.supercollection ul_published_reviewed en_US
dc.identifier.doi 10.1109/ACCESS.2021.3064896
dc.contributor.sponsor SFI en_US
dc.contributor.sponsor Horizon 2020 en_US
dc.contributor.sponsor ERC
dc.relation.projectid 13/RC/2094_P2 en_US
dc.relation.projectid 754489 en_US
dc.rights.accessrights info:eu-repo/semantics/openAccess en_US


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