openid / openid/dchp

Channel Binding being transport-specific specified

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Dominant language
Python
Stars
19
Forks
3
PR merge metrics
No merged PRs in 30d

Description

Currently, Channel Binding provides a map of all the fields of all possible transport types that could have been used to engage the protocol.

DC API is moving to provide a 'Client Data' structure. It would be nice to provide a similar approach for each transport so it is something like:

ChannelBinding = {
1 => DCAPIClientData, // DCAPI ClientData structure
2 => IsoDeviceEngagment, // 18013-5 DeviceEngagment structure
3 => OpenId4VPClientData, // OpenId4VP
}

This make the separation more clear, and makes it easier to add new transports in the future (e.g. issuance, agentic etc).

Contributor guide

Open the contributing guide

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

Start by locating the current Channel Binding definition and comparing it with the referenced DC API, ISO/IEC 18013-5, and OpenID4VP client-data structures. The issue names no files or tests; the work is done when the transport-specific structure and its extension approach are agreed and reflected consistently in the project.

Written by the indexing model from the issue text.

Assessment

Tech stack
python
Domain
backend-api-design
Issue type
Feature
Difficulty
5/5
Estimated time
Over a week
Activity status
Active
Clarity
Needs clarification
Newbie friendliness
30/100

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