Implement Verifiable Credentials

[amika-sq]

iOS needs to implement Verifiable Credentials, so that a consumer of the SDK can create/verify/etc a claim required for tbDEX

[kirahsapong]

[after discussion with @amika-sq] this may not be needed. a client will only need PresentationExchange.selectCredentials when fulfilling the requiredClaims of the offering and providing the associated data to the claims of the rfq

good to close @amika-sq ?

[Angie Jones]

[after discussion with @amika-sq] this may not be needed. a client will only need PresentationExchange.selectCredentials when fulfilling the requiredClaims of the offering and providing the associated data to the claims of the rfq

good to close @amika-sq ?

Wallet also needs PresentationExchange.satisfiesPresentationDefinition

[kirahsapong]

Wallet also needs PresentationExchange.satisfiesPresentationDefinition

ah gotcha, assuming so we can present to the user why certain credentials didn't satisfy a PD.

if no matching creds are found, selectCredentials will return an empty list while satisfiesPresentationDefinition will return an errors object explaining why.

if 2/5 matching creds are found, selectCredentials will return a list size of 2 which would be insufficient to satisfy the claims requirements, while satisfiesPresentationDefinition would return an errors object describing which requirements failed.

makes sense, good catch thank you!

[Angie Jones]

Wallet also needs PresentationExchange.satisfiesPresentationDefinition

ah gotcha, assuming so we can present to the user why certain credentials didn't satisfy a PD.

if no matching creds are found, selectCredentials will return an empty list while satisfiesPresentationDefinition will return an errors object explaining why.

if 2/5 matching creds are found, selectCredentials will return a list size of 2 which would be insufficient to satisfy the claims requirements, while satisfiesPresentationDefinition would return an errors object describing which requirements failed.

makes sense, good catch thank you!

Yes, more specifically, a Wallet can use this method to find the Offerings where the customer already has VCs that will satisfy the requiredClaims - therefore eliminating Offerings that she doesn't qualify for and not bothering to show those Offerings to her.

Here's an example

[kirahsapong]

oh truuuuue. yeah super good catch

[kirahsapong]

Closing in favour of #3