chore: check vct scheme to choose hardware/software key

[berendsliedrecht]

Signed-off-by: Berend Sliedrecht [email protected]

[TimoGlastra]

Use supportedCredentialId that is passed to this callback. This will help us when we add mdoc as well and request multiple creds.

Also -- vct is not always defined. So this check should be something like:

let shouldKeyBeHardwareBacked = false

const offeredCredentialConfiguration = offeredCredentialConfigurations[supportedCredentialId]

// TODO: use the enum for format, not sure what its' called)
if (offeredCredentialConfiguration.format === 'vc+sd-jwt' && pidSchemes?.sdJwtVcVcts.includes(offeredCredentialConfiguration.vct)) {
  shouldKeyBeHardwareBacked = true
}

Finally, I'm not sure why we need to call it pidSchemes. That's more implementation specific. Why not call it useHardwareKeySchemes? Or just pass useHardwareKey: true/false to this method? In receive pid use case we pass true, by default it's false

[TimoGlastra]

?? will only go to the next one if the value is undefined, but shouldKeyBeHardwareBackedForSdJwtVC will always have a value. I think you mean || in this case?