Offline Presentation of Credentials over NFC

[gkatrakazas]

Current Situation:

• The wwWallet app is being updated to include offline functionality.
• Post-implementation, the plan is to allow offline presentation of credentials.
• Full NFC capabilities are required for features like payments and presenting ID cards in offline/airplane mode.

Limitations:

• Web NFC API: Limited capabilities.
• WebView: Cannot support WebAuthn.
• Solution: A native wrapper (likely using React Native) seems to be the best approach. This wrapper will render the web-based wwWallet using ChromeCustomTab.

Proposed Roadmap:

1. Set Up React Native:
   • Initiate a new React Native project.
   • Ensure the project structure supports integration with Chrome Custom Tab.
2. Render WWWallet using Chrome Custom Tab:
   • Implement Chrome Custom Tab within the React Native app to render the web-based WWWallet.
   • Ensure smooth interaction between the web content and the native layer.
3. Implement NFC Functionality in the Native App:
   • Develop native modules to handle NFC capabilities.
   • Ensure these modules can communicate with the web app through message passing or other inter-process communication techniques.

Action Items:

• Set up a new React Native project.
• Integrate ChromeCustomTab to render the web-based wwWallet.
• Develop and integrate native NFC functionality.
• Ensure seamless communication between the native and web layers for NFC operations.