Home > Resources > blogs > FOSDEM-2025-OpenID4VP-BLE
Sample implementation of OpenID 4 Verifiable Presentation over Bluetooth Low Energy (FOSDEM 2025)¶
Last modified: 2026-10-23
Summary¶
FOSDEM 2025 talk (Digital Wallets and Verifiable Credentials track) by Sebastian Kałuziński demonstrating OpenID4VP over Bluetooth Low Energy using Nordic Semiconductor's BLE library with protobuf as transport, with lessons from building EUDI wallet prototypes and differences between the ISO and OpenID specifications. Video and slides are on the event page. Relevant for offline/proximity presentation of e-ID credentials.