Presentation Verification - SDJWT Required Claims

[curtis-h]

Proposed feature

Use "required claims" for determining Credential validity during Presentation Verification.
SDJWT has the concept of "required claims", where the Verifier can specify some claims must be disclosed for verification to continue.
This has been part way coded but needs completion.

[elribonazo]

After a little of research came up with the following:

RequiredClaims is an attribute from our library vendor https://github.com/openwallet-foundation/sd-jwt-js/blob/2c9a65d8df1974cba7b58539e0527de5d8d6ecf5/packages/core/src/index.ts#L216 and is used by the library to determine if the SDJWT has the required fields defined.

In our code, we are using a different approach, not using the libraries requiredClaims parameter, instead we rely on disclosing any available field and then processing its validation with input_descriptor and presentation exchange protocol

We always achieve the same results.

[amagyar-iohk]

@elribonazo i see that the PR has been closed and not merged. was this feature implemented?

[elribonazo]

it is a good feature request