EUDI Wallet Overview
European Digital Identity Ecosystem
Our company has been following and participating in the development of the European Digital Identity (EUDI) ecosystem since summer 2023. In this article, our goal is to present in an understandable way what the digital wallet is good for, what standards and actors are behind it, and how it should be integrated into corporate processes.
Table of Contents
1. What is EUDI Wallet?
A mobile-optimized, secure wallet in which authentic certificates issued by official state and market actors (e.g. personal data, qualifications, authorizations) can be stored and selectively shared. The framework is provided by eIDAS 2.0 (Regulation (EU) 2024/1183).
The EUDI Wallet enables citizens to securely store and present their digital identity documents, qualifications, and other credentials across the European Union.
2. Implementation Status
The Commission adopted the basic implementing regulations (core functions, protocols, certification, etc.) at the end of 2024, and in 2025 further regulations affecting registration and registries.
Member states must provide a wallet within 24 months from the adoption of EU implementing regulations, so practical availability is expected widely at member state level in 2026.
3. Main Actors
The EUDI Wallet ecosystem involves three main actors that work together to enable secure digital identity verification:
Issuer
Officially certifies data (PID/EAA) - government agencies, authorized institutions
User (Holder)
Stores and manages their certificates on their own device
Verifier / Relying Party
Requests and verifies attributes in a registered manner
4. Technology Stack
The EUDI Wallet is built on modern, open standards that ensure interoperability and security across the European Union.
Interaction Protocols:
- OpenID4VCI - Credential Issuance
- OpenID4VP - Verifiable Presentation
- SIOPv2 - Self-issued Identity
Credential Formats:
- SD-JWT VC - Selective Disclosure JSON Web Token
- ISO/IEC 18013-5 (mdoc/mdl) - Mobile Document format
Basic principle: privacy- and security-by-design, data minimization, selective data transmission.
5. Hungarian Context
Within the DÁP framework, the Digital Citizen application is already operating and also implements a 'Digital Wallet' function. The eID solution is built on this, which the DÁP Act (Act CIII of 2023) makes mandatory for many market actors.
The details are being shaped in accordance with the implementation of EU regulations. Hungarian businesses should prepare for integration requirements.
6. Integration Options
TrustID Solutions offers flexible integration options for businesses looking to connect to the EUDI Wallet ecosystem:
SDK Integration
A boxed SDK that handles OpenID4VP complexity in the background. Ideal for large corporations with existing IT infrastructure.
Managed Service
Cloud-based solution for businesses that prefer not to manage infrastructure. Quick deployment with minimal technical overhead.
TrustID Solutions currently offers an easy solution for integration with DÁP eIdentification.
Ready to integrate with EUDI Wallet?
Explore our detailed technical guides or contact us for a personalized consultation.