EUDI Wallet Insights
Whether you're integrating the EUDI Wallet, designing systems around it, or evaluating its business case, this section is the technical reference. Published by iGrant.io in collaboration with EU Digital Identity Wallet Consortium (EWC) partners.
Protocol Deep Dives
EUDI Wallets with OpenID4VC
How OpenID4VCI and OpenID4VP work together to issue and present verifiable credentials in the EUDI Wallet ecosystem.
DCQL in the EUDI Wallets
Granular, multi-credential queries for OpenID4VP presentation requests, illustrated with payment-flow examples from the European Business Wallet.
Credential Formats in EUDI Wallets
A comparison of W3C VC, IETF SD-JWT, and ISO 18013-5 mDoc/mDL formats and when to choose each.
Credential Issuance Lifecycle (OpenID4VCI)
Six progressive stages from offer-sent to credential-accepted, with state diagrams and webhook events.
Business Guides
The EUDI Wallet (eIDAS 2.0): A Business Guide to Use Cases
Sector-by-sector business benefits and use cases for the European Digital Identity Wallet under eIDAS 2.0.
Introduction to eIDAS 2.0 and Digital Wallets
The regulatory foundation of the European Digital Identity Wallet and how it differs from eIDAS 1.0.
European Business Wallets
How the Business Wallet enables trust and scale across regulated organisations within the EUDI Wallet ecosystem.
Specifications
Data Agreements (DA)
The conceptual model for data agreements in the digital identity ecosystem.
DA Vocabulary versions
Version history of the Data Agreement vocabulary.
Data Disclosure Agreements (DDA)
Specification for selective disclosure of data attributes between organisations.
DDA Vocabulary versions
Version history of the Data Disclosure Agreement vocabulary.
Data Intermediation Service Provider (DISP)
The role of intermediation services under the EU Data Governance Act.
Reference Model
The Minimum Disclosure Option (MDO) reference model for selective data sharing.
Data Exchange Landscape
An overview of the European data exchange landscape and how the specifications fit together.