wwWallet Issuer
About this service
The Demo wwWallet Issuer is a proof-of-concept service designed to issue verifiable credentials (VCs) in SD-JWT or mdoc formats, supporting the wwWallet ecosystem. It provides demonstrative credentials, including Personal Identification (PID), European Health Insurance Card (EHIC), Bachelor Diploma and Power of Representation VCs, strictly for testing purposes (not valid for real-world use).
The issuer metadata is available at https://issuer-test.uoa.gr/openid/.well-known/openid-credential-issuer and the JWT VC Issuer Metadata configuration can be found at https://issuer-test.uoa.gr/.well-known/jwt-vc-issuer/openid.
The Root CA certificate used to sign the issuer's certificate is available at https://issuer-test.uoa.gr/openid/mdoc-iacas.
OpenID4VCI Interoperability Profile
| OIDVCI Specification | 1.0 |
|---|---|
| Grant Type | authorization_code [OpenID.Core] |
| Client Authentication | PKCE [RFC 7636], no secret |
| Client Type | Public |
| OpenID4VP, OAuth 2.0 for First-Party Applications | |
| Scope | Required |
| Authorization Method | Pushed Authorization Request [RFC 9126] |
| Access Token | DPoP Token [RFC 9449] |
| Credential Endpoint Proof Type | jwt [OpenID4VCI] |
| Credential Response Holder Binding | cnf claim [RFC 7800] |
| Batch Credential Endpoint | Supported |
| Credential Format | dc+sd-jwt, mso_mdoc |
Notes: Currently, the Notification and Deferred Endpoints are not supported.
OpenID4VP Interoperability Profile
| OIDVP Specification | Draft 24 |
|---|---|
| Response Mode | direct_post.jwt [OpenID4VP] |
| Request Method | request_uri signed [JAR] |
| Client ID Scheme | x509_san_dns |
| Credential Format | dc+sd-jwt, mso_mdoc |