baseid-vc

The VC crate implements the W3C Verifiable Credentials Data Model 2.0 with JWT encoding.

Installation

[dependencies]
baseid-vc = "0.1.0-alpha.1"

Issue a Credential

use baseid_vc::{sign_credential_jwt, VerifiableCredential};
use baseid_vc::credential::Issuer;

let vc = VerifiableCredential {
    context: vec!["https://www.w3.org/ns/credentials/v2".into()],
    id: None,
    r#type: vec!["VerifiableCredential".into(), "AlumniCredential".into()],
    issuer: Issuer::Uri(issuer_did.clone()),
    valid_from: Some("2024-01-01T00:00:00Z".into()),
    valid_until: Some("2029-01-01T00:00:00Z".into()),
    credential_subject: serde_json::json!({
        "alumniOf": "Example University"
    }),
    credential_status: None,
    proof: None,
};

let jwt = sign_credential_jwt(&vc, &key_pair, &kid)?;

Verify a Credential

use baseid_vc::verify_credential_jwt;

let verified = verify_credential_jwt(&jwt, &public_key)?;
println!("Issuer: {}", verified.issuer);
println!("Claims: {:?}", verified.credential_subject);

Credential Status

Check revocation status:

use baseid_vc::credential::CredentialStatus;

if let Some(status) = &vc.credential_status {
    // Check against status list
}

Verifiable Presentations

Wrap credentials in a presentation for submission to a verifier:

use baseid_vc::VerifiablePresentation;

let vp = VerifiablePresentation {
    context: vec!["https://www.w3.org/ns/credentials/v2".into()],
    r#type: vec!["VerifiablePresentation".into()],
    holder: Some(holder_did),
    verifiable_credential: vec![jwt],
};

Full API Reference