OpenID for Verifiable Presentations (OID4VP)

Rust implementation of the OpenID for Verifiable Presentations (OID4VP) specification.

Install

Add the following to your Cargo.toml:

[dependencies]
openid4vp = "0.1"

or

cargo add openid4vp

Testing

Ensure the /tests/presentation-exchange submodule is initialized, run the following in the root of the project:

git submodule init --recursive

Presentation Exchange Overview

sequenceDiagram
    participant Holder
    participant Verifier
    participant Issuer

    Verifier->>Holder: 1. Request Presentation (with Presentation Definition)
    Note over Holder: 2. User consents to share credentials
    Holder->>Holder: 3. Select appropriate credentials
    Holder->>Holder: 4. Create Verifiable Presentation
    Holder->>Holder: 5. Create Presentation Submission
    Holder->>Verifier: 6. Send VP Token (VP + Presentation Submission)
    Verifier->>Verifier: 7. Validate VP Token
    Verifier->>Issuer: 8. (Optional) Verify credential status
    Issuer-->>Verifier: 9. (Optional) Credential status response
    Verifier->>Verifier: 10. Check claims against Presentation Definition
    Verifier->>Holder: 11. Grant or deny access based on verification

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License

This project is licensed under the MIT License - see the LICENSE file for details.