solid / solid/solid-oidc

DPoP usage with ID Tokens

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Description

This is one of the issues raised in a conversation with @dteleguin

https://datatracker.ietf.org/doc/html/draft-ietf-oauth-dpop

DPoP spec talks explicitly about binding Access Tokens. Solid-OIDC only uses

Since access tokens themselves are out of scope for Solid-OIDC.

We should double-check if there are any possible issues of using DPoP Proof JWT with ID TOken

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First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Review the linked draft-ietf-oauth-dpop sections 4 and 6.1 alongside Solid-OIDC's ID Token requirements. Determine whether using DPoP Proof JWTs with ID Tokens creates security or interoperability issues. Done means documenting a clear compatibility conclusion and any specification changes required.

Written by the indexing model from the issue text.

Assessment

Domain
authentication, security
Issue type
Feature
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
30/100

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