# The EUDI Wallet in practice: Verified Call and wallet login

> Two near-production EUDI Wallet applications: identity-verified video calls and passwordless wallet login — built before eIDAS 2.0 takes effect.

Quelle: https://kontrollfeld.de/en/case-studies/eudi-wallet-portfolio/
Sprache: en
Kunde: Kontrollfeld (own development)
Branche: Digital Identity
Tech-Stack: Node.js, WebRTC, OpenID4VP, SIOPv2, Docker
Veröffentlicht: 2026-05-01
Hinweis: KI-generiert, menschlich reviewt.

---
## Why this matters

With the eIDAS 2.0 regulation, the EU introduces the European Digital Identity Wallet (EUDI Wallet): a state-issued digital wallet that lets citizens identify themselves online — from proof of age to full identity verification. From 2027, many industries are obliged to accept the wallet as a means of identification, including banks, telecom providers and large platforms. Whoever starts integrating only then will face time pressure in a technically demanding ecosystem of new protocols and trust models.

We decided early on to work through this topic in running software rather than slide decks — with two applications covering real use cases.

## EUDI Verified Call: video calls between verified people

A peer-to-peer call (video, audio, chat) in which both sides identify themselves via EUDI Wallet before connecting. The key detail: both parties see in advance which identity fields will be exchanged — the values themselves are only disclosed once both consent. This protects against vishing and identity fraud in situations where certainty matters: consultations, contract closings, dealings with authorities. The application exists as an open-source core plus commercial pro extensions.

## Wallet login: passwordless and pseudonymous

A proof of concept for logging in via EUDI Wallet based on OpenID4VP and SIOPv2 — including a simulated paywall for publishers. Users prove what is necessary (a valid subscription, being of age) without creating a password account and without disclosing more data than required. Dedicated issuer and verifier components run in containers and fit into existing system landscapes.

## What this means for your project

Both projects produced solid knowledge of the EUDI ecosystem: protocols (OpenID4VP, OpenID4VCI, SIOPv2), certificate and trust chains, wallet compatibility and the limits of current reference implementations. We bring this knowledge to integration projects — from impact assessment to pilot operation.