I'm struggling to figure out push provisioning right now. The thing I don't understand is: why do I need a native mobile app? Why isn't there an HTTP API to add a payment card to Apple Wallet or Google Play?
Authentication - its Apple and googles way of knowing that the card is actually issued by a known app developer, linked To a real financial institution with the right relationship with a card network. Bc the AppStore is locked down Apple can do it this way more easily than on the web.