[Openid-specs-ab] Issue #1442: [oidc4vci] Removing presentation exchange as the data model for provider metadata publishing around credential issuance (openid/connect)

[Tobias Looker]

New issue 1442: [oidc4vci] Removing presentation exchange as the data model for provider metadata publishing around credential issuance
https://bitbucket.org/openid/connect/issues/1442/oidc4vci-removing-presentation-exchange-as

Tobias Looker:

Presentation exchange is a highly comprehensive specification that offers many options around describing stuff like a credential manifest. However I think when it comes to defining the metadata a provider must publish in order to promote the ability for a client to discover what credential they offer, there are simpler syntax choices we could elect to explore that do not depend on P.E. As an example I can see a simplified openid metadata entry for expressing support for credential issuance being something along the lines of the following

```
{
.....
"credentials_supported": [
  {
    "name": "Basic Credential" // For basic rendering in a credential offer
    "type": "credential_type_1",
    "claims": [
      "first_name",
      "last_name",
      "date_of_birth"
    ]
  }
],
"credential_endpoint": "..."
"credential_formats_supported": ["w3cvc-jsonld","jwt"]
}
```

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