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Auflistung nach Autor:in "Dimitrakos, Theo"

1 - 3 von 3
  • Konferenzbeitrag
    Open Identity Summit 2023 - Complete proceedings
    (Open Identity Summit 2023, 2023) Chadwick, David W.; Kubach, Michael; Sette, Ioram; Johnson Jeyakumar, Isaac Henderson; Bochnia, Ricardo; Richter, Daniel; Anke, Jürgen; Sellung, Rachelle; Kubach, Michael; Otto, Sarah; Meisel, Michael; Fernet, Laouen; Mödersheim, Sebastian; Krauß, Anna-Magdalena; Kostic, Sandra; Sellung, Rachelle A.; Pöhn, Daniela; Grabatin, Michael; Hommel, Wolfgang; Kubach, Michael; Henderson, Isaac; Bithin, Alangot; Dimitrakos, Theo; Vargas, Juan; Winterstetter, Matthias; Krontiris, Ioannis; Schwalm, Steffen; Fuxen, Philipp; Hackenberg, Rudolf; Heinl, Michael P.; Ross, Mirko; Roßnagel, Heiko; Schunck, Christian H.; Yahalom, Raphael; Ruff, Christopher; Benthien, Benedict; Orlowski, Alexander; Astfalk, Stefanie; Schunck, Christian H.; Fritsch, Lothar; Fähnrich, Nicolas; Köster, Kevin; Renkel, Patrick; Huber, Richard; Menz, Nadja
  • Konferenzbeitrag
    A shared responsibility model to support cross border and cross organizational federation on top of decentralized and self-sovereign identity: Architecture and first PoC
    (Open Identity Summit 2023, 2023) Kubach, Michael; Henderson, Isaac; Bithin, Alangot; Dimitrakos, Theo; Vargas, Juan; Winterstetter, Matthias; Krontiris, Ioannis
    This paper discusses the challenges of transitioning from legacy federated identity systems to emerging decentralized identity technologies based on self-sovereign identities (SSI) and verifiable credentials, which are being used in initiatives such as Gaia-X and Catena-X for secure and sovereign data sharing. The adoption of SSI and decentralized identity technologies requires a standardized reference model that addresses challenges around trust in cross-border and crossorganizational federations based on decentralized identities. To facilitate this transition, the paper proposes a new Fed2SSI architecture that introduces a middle layer of abstraction for the policybased transformation of credentials, enabling interoperability between legacy federated identity solutions and SSI/decentralized identity environments. The architecture is implemented in a prototype and an exemplary use case is presented to illustrate the added value of this approach.
  • Konferenzbeitrag
    Towards Robust Trust Frameworks for Data Exchange: A Multidisciplinary Inquiry
    (Open Identity Summit 2024, 2024) Badirova, Aytaj; Alangot, Bithin; Dimitrakos, Theo; Yahyapour, Ramin
    Data exchange is essential in the fast-changing field of data-driven innovations. In exploring the importance of data and data exchange, this paper highlights the necessity of building trust. For data sharing to be successful, trust is essential for assuring reliability, security, and ethical behaviour. We review the current state of the art where research and real-world applications converge in both academia and industry. Notably, trust framework-based projects are starting to take shape, promoting safe and open data markets that are included in this work. Nonetheless, challenges still exist, such as complex legal, technological, and business issues. Some of the main challenges that are faced while establishing a trust framework have also been briefly mentioned in this paper.