[Openid-specs-ab] Issue #1235: Create a new section up front to explain the Actors (openid/connect)

Nat issues-reply at bitbucket.org
Wed May 12 21:29:52 UTC 2021


New issue 1235: Create a new section up front to explain the Actors
https://bitbucket.org/openid/connect/issues/1235/create-a-new-section-up-front-to-explain

Nat Sakimura:

## Rationale

In this draft, there are four main actors. 

1. User
2. RP
3. OP
4. CP

It is not currently clear for the readers at the outset. 

## Proposal

The fact and what they are should be explained up-front as New section 5. 

The suggested structure for the new Section 5 is as follows: 

5\. Actors   
5\.1 User  
5\.2 RP  
5\.3 OP   
5\.4 CP  
5\.4.1 Claims Endpoint  
  
NOTE 1: It is worth discussing if OP should support Claims Endpoint as well.   
NOTE 2: Claims Endpoint should support both ID Token style response and VC. \(Distinguished by Media-type?\)

6\. Interactions  
6\.1 Introduction \(current 5.1\)  
6\.2 Discovery Phase: OP discovering CP Metadata  
6\.3 OP Registration Phase  
6\.3.1 Registration of the OP to the CP  
6\.3.2 CP obtaining OP metadata and verifying OP issuer value  
6\.4 Set-up Phase: Obtaining Access and Refresh Token from the CP by the OP  
6\.5.1 OP sending authorization request to CP  
6\.5.2 User granting access at the CP  
6\.5.3 CP responds with AT and RT  
6\.5 RP Phase: An RP requesting claims and receiving them  
6\.5.1 RP registration to the OP  
6\.5.2 Authentication and Claims request by the RP to the OP  
    NOTE: this is just a regular OIDC authentication request so is ommiteed from the current version. Perhaps needs to be extended for DID/VC.   
6\.5.3 The User granting access at the OP  
6\.5.4 The OP making down scoped claims request to the CP’s Claims Endpoint  
6\.5.5 The CP returns the Claims Token  
6\.5.6 The OP repeats it for all the CPs needed  
6\.5.7 The OP returns ID Token and UserInfo Response \(and potentially Claims Endpoint Response\)  
  
7\. Security Considerations  
8\. Privacy Considerations  
Bibliography  
Appendices  
  

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