OeNB Freitagsseminar with Judith Senn

Systematization of Knowledge: The Design Space of Digital Payment Systems with Potential for CBDC

OeNB Freitagsseminar with Judith Senn, University of Innsbruck

AbstractCentral Bank Digital Currencies (CBDCs) have been suggested as a public response to the growing popularity of privately run digital payment systems. A prominent example for this is the Digital Euro, which is currently being developed by the European Central Bank (ECB). This momentum provides a unique opportunity to fundamentally rethink the future of money, and, assuming wide adoption, to establish payment systems that offer strong cryptographic security and privacy guarantees from the outset. While the central banks in charge are investigating privacy-enhancing technologies (PETs), they often conclude that PETs are premature or insufficiently scalable. Moreover, these efforts tend to examine primitives in isolation, providing limited insight into how a system using them would scale. Our structured, top-down technical analysis of 36 payment system designs in the literature identifies recurring design patterns, technical trade-offs, and implementation challenges.

Date
Friday, 29 May 2026 | Start: 11:00 AM | End: 12:30 PM                    

Venue
The event is planned both, online via Webex and onsite at the Oesterreichische Nationalbank, Otto-Wagner-Platz 3, 1090 Vienna, Meeting Room M3080, 3rd floor

Join us by registering by 28 May 2026, at the latest.

Registration