A Decentralised Public Key Infrastructure for X-Road

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dc.contributor.authorBakhtina, Mariia
dc.contributor.authorLong Leung, Kin
dc.contributor.authorMatulevičius, Raimundas
dc.contributor.authorAwad, Ahmed
dc.contributor.authorŠvenda, Petr
dc.date.accessioned2025-05-07T10:47:42Z
dc.date.available2025-05-07T10:47:42Z
dc.date.issued2023
dc.description.abstractX-Road is an open-source solution that acts as a data exchange layer and enables secure data exchange between organisations. X Road serves as the backbone of digital infrastructure in the public sector (e.g., enabling Estonia’s digital public services) and private sector (e.g., enabling clients’ data exchange in the Japanese en ergy sector). An approach and architecture were recently proposed for the X-Road data exchange systems to move from public key infrastructure (PKI) with centralised certification authorities to de centralised PKI (DPKI). In this paper, we develop a proof of concept for the designed DPKI-based architecture that leverages distributed ledger-based identifiers and verifiable credentials to establish trust between information systems using Hyperledger Indy and Hyper ledger Aries. We evaluate the proof of concept implementation against the design and functional requirements. The results show that the proposed system architecture is technically feasible and satisfies the identified design goals and functional requirements. To the best of our knowledge, this paper presents the first open-access system prototype for an organisation’s identity management fol lowing self-sovereign identity principles. The presented proof of concept proves that DPKI helps to address some of the scalability issues of PKI, improve control over identity and mitigate replay attacks and a single point of failure in the X-Road system.
dc.identifier.citationBakhtina, M. et al. (2023) “A Decentralised Public Key Infrastructure for X-Road,” in Proceedings of the 18th International Conference on Availability, Reliability and Security.
dc.identifier.doihttps://doi.org/10.1145/3600160.3605092
dc.identifier.urihttps://bspace.buid.ac.ae/handle/1234/2940
dc.language.isoen
dc.publisherACM DIGITAL LIBRARY
dc.relation.ispartofseriesProceedings of the 18th International Conference on Availability, Reliability and Security1-8
dc.subjectdecentralised public key infrastructure, proof of concept, decen tralised identifier, verifiable credentials, distributed ledger, X-Road
dc.titleA Decentralised Public Key Infrastructure for X-Road
dc.typeArticle
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Dr Ahmed Awad