openid / openid/OpenID4VP

Question about encrypted responses

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Description

https://openid.net/specs/openid-4-verifiable-presentations-1_0.html#section-8.3-7 shows an example of an ecrypted response, which is a JSON object. I am a little confused as to when this response format should be used.

The direct_post response_mode defines that the HTTP POST request to the Verifier must be encoded in the request body using the format defined by the application/x-www-form-urlencoded HTTP content type. In this case I would expect the wallet to send the JWE in the response parameter, but not as a JSON object, but as a x-www-form-urlencoded parameter as it is defined in https://openid.net/specs/openid-4-verifiable-presentations-1_0.html#section-8.3.1-4 for direct_post.jwt responses.

In which scenarios should the JSON Object format be used?

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Research direction

Read sections 8.3-7 and 8.3.1-4 of the linked OpenID4VP specification, focusing on the encrypted response JSON object, direct_post, direct_post.jwt, and the response parameter. Compare the formats and document which scenarios use the JSON object format, with a clear distinction from form-encoded HTTP requests.

Written by the indexing model from the issue text.

Assessment

Domain
authentication, security
Issue type
Documentation
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
20/100

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