2026-05-28 –, Arena
Building the EUDI Wallet ecosystem means deploying production systems on evolving drafts. This talk shares lessons from OID4VC, interoperability gaps, and the security challenges that arise when standards change faster than deployments.
The revised eIDAS regulation requires every EU member state to deploy a certified digital identity wallet by the end of 2026. The challenge: when implementation began, key standards were still evolving, some published only as drafts, others incomplete, and some still missing entirely.
This talk shares practical lessons from building a production-grade national identity ecosystem under these conditions. Using OID4VC, OID4VP, and related trust specifications as examples, it explores how draft changes, interoperability gaps, and unresolved security assumptions directly affect real deployments.
A particular focus will be the debates around OID4VC drafts and how seemingly small specification changes can cascade into ecosystem-wide implementation and security challenges.
The session aims to bridge the gap between protocol design and operational reality, offering insights for standards authors, implementers, and security researchers.
