A System to Access Online Services with Minimal Personal Information Disclosure

Antonia Russo (), Gianluca Lax (), Baptiste Dromard () and Menad Mezred ()
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Antonia Russo: University of Reggio Calabria
Gianluca Lax: University of Reggio Calabria
Baptiste Dromard: ENSICAEN
Menad Mezred: ENSICAEN

Information Systems Frontiers, 2022, vol. 24, issue 5, No 12, 1563-1575

Abstract: Abstract The General Data Protection Regulation highlights the principle of data minimization, which means that only data required to successfully accomplish a given task should be processed. In this paper, we propose a Blockchain-based scheme that allows users to have control over the personal data revealed when accessing a service. The proposed solution does not rely on sophisticated cryptographic primitives, provides mechanisms for revoking the authorization to access a service and for guessing the identity of a user only in cases of need, and is compliant with the recent eIDAS Regulation. We prove that the proposed scheme is secure and reaches the expected goal, and we present an Ethereum-based implementation to show the effectiveness of the proposed solution.

Keywords: Blockchain; Smart contracts; eIDAS Regulation; Access control; Privacy (search for similar items in EconPapers)
Date: 2022
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DOI: 10.1007/s10796-021-10150-8

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