how do i implement passkeys

To implement passkeys in your app, you can follow the guidance provided in the WWDC sessions. Here are the key steps and considerations:

1. Understand Passkeys:

   • Passkeys are a standards-based password replacement that are easier to use, more secure, and resistant to phishing. They eliminate the need for users to remember passwords and provide a single tap or click sign-in experience.

2. Automatic Passkey Upgrades:

   • In iOS 18 and macOS, apps can automatically upgrade existing accounts to use passkeys during sign-in. This means you can enhance account security without requiring users to manually create passkeys.
   • Passkeys work alongside passwords, so you don't need to adjust your login flow significantly to accommodate them.

3. Implementing Passkeys:

   • Check System Capabilities: Before making a passkey creation request, ensure the system supports it. This includes checking if a credential manager is set up and if the device is configured to use passkeys.
   • Request Passkey Creation: When a user signs in with a password, your app can request the system to create a passkey. If the system conditions are met, a passkey is created without interrupting the user flow.
   • Handle Errors Gracefully: If the conditions for creating a passkey are not met, handle the error gracefully and consider retrying later or showing an upsell dialog.

4. Credential Managers:

   • Credential managers can participate in automatic passkey upgrades and fill in usernames, passwords, and one-time codes. Ensure your app supports these features by updating the relevant keys in your info plist and using the appropriate APIs.

5. Deployment:

   • Deploying passkey support involves learning, building, testing, and shipping phases. The ultimate goal is to make sign-in easier and improve account security by transitioning away from passwords.

For a detailed walkthrough, you can refer to the session "Streamline sign-in with passkey upgrades and credential managers" which covers automatic passkey upgrades and the sequence of implementing them.

Relevant Sessions

• Streamline sign-in with passkey upgrades and credential managers
• What’s new in privacy

By following these steps and utilizing the resources provided in the sessions, you can implement passkeys in your app to enhance security and provide a seamless user experience.