eIDAS 2.0 & EUDI Wallets: How Digital Wallets Can Lead the Identity Revolution

The countdown has begun. Under the updated eIDAS 2.0 regulation (EU Regulation 2024/1183), EU Member States are mandated to provide at least one European Digital Identity (EUDI) Wallet to all citizens and businesses by December 2026. This framework represents a seismic shift in how identity, personal attributes, and legal documents are stored and shared across borders. But it isn't just a compliance hurdle for EU governments—it is a massive opportunity for the global digital wallet ecosystem to innovate and lead.

What is eIDAS 2.0 and the EUDI Wallet?

eIDAS 2.0 expands the original framework by introducing a standardized European Digital Identity Wallet. This wallet enables users to securely store and share their identity data (PID - Person Identification Data) along with Verifiable Credentials (such as digital driving licenses, diplomas, bank accounts, and professional qualifications) across the entire European Union with high levels of security and user control.

eIDAS 2.0 shifts control of digital identity back to the individual, using decentralized technology that guarantees Strong Customer Authentication (SCA) and selective data disclosure.

The Core Technical Architecture

To build or adapt a digital wallet to be compatible and ahead of the eIDAS 2.0 curve, projects must adopt the EUDI Architecture and Reference Framework (ARF) standards. The architecture relies on several foundational technologies:

• W3C Verifiable Credentials & Decentralized Identifiers (DIDs) for tamper-proof credentials.
• OIDC4VCI (OpenID for Verifiable Credential Issuance) for secure credential delivery from issuers to wallets.
• OIDC4VP (OpenID for Verifiable Presentations) to share credential packages with relying parties safely.
• Selective Disclosure (SD-JWT) enabling users to share only necessary details (e.g., verifying age over 18 without revealing their exact birthdate).
• Hardware Security (Secure Elements/Enclaves) on mobile devices to bind keys cryptographically to the physical phone.

Positioning Your Project to Lead

While the mandate is targeted at EU governments, any commercial wallet project (Fintech, Web3, or Enterprise) can gain a massive advantage by integrating these open standards now. By adopting OIDC4VC protocols and decentralizing identity management, your app can immediately interface with European trust networks, positioning your service as an early, trusted partner for secure digital transactions, KYC compliance, and cross-border operations.

Implementing OIDC4VP Presentation Verification

Here is a conceptual implementation of how a relying party verifies a EUDI-compatible verifiable credential presentation using standard OpenID Connect protocols:

import { VerifiablePresentationVerifier } from "eudi-wallet-verifier-sdk";

async function verifyWalletCredential(presentationToken, expectedChallenge) {
  const verifier = new VerifiablePresentationVerifier({
    trustedIssuers: ["https://issuer.eudi.europa.eu"],
    requiredAttributes: ["given_name", "family_name", "date_of_birth"]
  });

  try {
    const verificationResult = await verifier.verify(presentationToken, {
      challenge: expectedChallenge,
      currentTime: new Date()
    });

    if (verificationResult.isValid) {
      // Access cryptographically verified selective attributes
      const { claims } = verificationResult;
      return { success: true, user: claims };
    }
    return { success: false, error: "Signature verification failed" };
  } catch (error) {
    return { success: false, error: error.message };
  }
}

How RYL Technology Builds eIDAS-Ready Infrastructure

At RYL Technology, we stay ahead of regulatory and technical transitions. We design secure mobile solutions incorporating biometrics, decentralized key storage, and standardized OpenID protocols. Whether you are looking to audit your existing wallet or build an eIDAS-ready identity wallet from scratch, we have the expertise to help you build secure, scalable solutions.