EUDI Wallets and OpenID for Verifiable Credentials

This paper is a technical report that discusses the integration of OpenID protocols with verifiable credentials, focusing on the European Union Digital Identity (EUDI) Wallets. It outlines the significance of OpenID for Verifiable Credentials (OID4VC), Self-Issued OpenID Provider V2 (SIOPv2), OpenID for Verifiable Credential Issuance (OID4VCI), and OpenID for Verifiable Presentations (OID4VP). The document explains how these protocols enhance privacy and user control over personal data within digital wallets. It details the operational mechanisms of OID4VCI and OID4VP, emphasizing their roles in facilitating secure identity verification and authentication without relying on central authorities. The report also highlights the adaptability of these protocols to various use cases, ensuring compliance with established standards. Additionally, it provides real-world scenarios to illustrate the application of these protocols, aiming to inform professionals and stakeholders about the evolving landscape of digital identity management.