Dr Ahmed Awad

Permanent URI for this collection

https://bspace.buid.ac.ae/handle/1234/2428
Dr Ahmed Awad is an associate professor. Formerly, Prof. Awad was a professor of Big Data at the Institute of Computer Science, University of Tartu, Estonia. Before that, Dr. Awad was an associate professor of Information Systems at the faculty of computers and artificial intelligence Cairo University, Egypt.

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Browsing Dr Ahmed Awad by Author "Bakhtina, Mariia"

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    A Decentralised Public Key Infrastructure for X-Road
    (ACM DIGITAL LIBRARY, 2023) Bakhtina, Mariia; Long Leung, Kin; Matulevičius, Raimundas; Awad, Ahmed; Švenda, Petr
    X-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.
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    On The Shift to Decentralised Identity Management in Distributed Data Exchange Systems
    (ACM DIGITAL LIBRARY, 2023) Bakhtina, Mariia; Matulevičius, Raimundas; Awad, Ahmed; Kivimäki, Petteri
    The commonly used centralised trust and centralised identity man agement make information systems and organisations prone to a single point of failure. Therefore, decentralised identity man agement has appeared as an alternative solution to mitigate the weaknesses of centralised identity. In this paper, we propose an approach of system analysis that should guide organisations that considers the transition to decentralised identity management. The approach aims to support decision-making about the usefulness of the transition based on the created assessment model. The approach is validated through a case study of the X-Road ecosystem.