Core Responsibilities

The Verifier streamlines key operations in verifying credential-based assertions:

1. Verification Request Management:

   • Generates OIDC4VP-compatible requests, including unique state and nonce values.

   • Specifies required credential attributes using a configurable query language.

2. Credential Validation:

   • Checks cryptographic signatures of VCs and VPs.

   • Validates credential issuers against DID Documents anchored on the EMPE Blockchain.

   • Ensures compliance with schemas, expiration checks, and revocation lists.

3. Real-Time Communication and Feedback:

   • Uses SSE to provide immediate status updates throughout the verification process.

   • Enhances user experience by showing progress and final outcomes in real-time.

4. Session and Access Control:

   • Upon successful verification, issues tokens or triggers application-specific logic.

   • Supports passwordless login flows and credential-based access control.

5. Integration Support:

   • Offers both server-side and client-side libraries for easy integration with existing applications.

   • Adapts to diverse use cases, from simple access checks to complex multi-condition verifications.

By fulfilling these responsibilities, the Verifier simplifies the implementation of secure, privacy-respecting, and flexible authentication workflows.