A Blockchain Implementation for Configurable Multi-Factor Challenge-Set Self-Sovereign Identity Authentication

A. Norta, A. Kormiltsyn, C. Udokwu, V. Dwivedi, S. Aroh, I. Nikolajev
Nort22a (2022)
Proceedings of the 2022 IEEE International Conference on Blockchain (Blockchain 2022), Espoo, Finland, August 22-25, 2022, IEEE Press, doi: 10.1109/Blockchain55522.2022.00070, ISBN: 978-1-6654-6105-4, pp. 455-461, 2022.
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Kurzfassung (Englisch)

Multi-factor challenge-set self-sovereign identity authentication (MFFSIA) is an important part for establishing trust between systems, devices, organizations and humans for the emerging machine-to-everything (M2X) economy. Most systems for identity authentication (IA) are single sign-on (SSO), or have fixed challenge sets of limited degree. Additionally, IA systems are controlled by governments, or corporations that are closely affiliated with government entities. The available systems for self-sovereign IA do not offer the necessary flexible configurability of challenge sets. Based on research publications about a formal MFSSIA protocol, this paper presents a blockchain employing implementation for a running case assuming different smart-contract blockchain systems must be connected for sensitive data exchange. The prototype offers a marketplace for challenge-set creation and the challenge/response-lifecycle management employs decentralized knowledge graphs (DKG) together with oracles for response evaluations.