U2F (Universal 2nd Factor)
Flipper Zero can act as a USB universal 2nd-factor (U2F) authentication token or security key that can be used as the second authentication factor when signing in to web accounts. A security key is a small device that helps computers verify that it is you when signing in to an account. The use of this feature increases the security of your accounts.
To learn more about websites that support two-factor authentication, visit the USB-Dongle Authentication website.
On this page, you’ll learn how to turn your Flipper Zero into a security key and use the device as the second authentication factor.
Setting up your Flipper Zero as a security key
Before using the U2F feature, you need to register your Flipper Zero as a security key for two-factor authentication of a user on your web accounts.
To add the device as a security key to your account, do the following:
If the qFlipper application is running on your computer, close the application.
Connect your Flipper Zero to the computer via a USB cable.
On your Flipper Zero, go to Main Menu -> U2F and make sure that Connected is displayed on the screen.
Choose a security key as the 2nd verification step.
On your Flipper Zero, press %ok%OK to confirm the registration of Flipper Zero as a security key.
Signing in with your Flipper Zero
Once you’ve added your Flipper Zero to your account as a security key, you can use the device as the 2nd factor.
To sign in to your account with Flipper Zero, do the following:
If the qFlipper application is running on your computer, close the application.
Connect your Flipper Zero to your computer via a USB cable.
On your Flipper Zero, go to Main Menu -> U2F and make sure that Connected is displayed on the screen.
While signing in to your web account, complete the 1st verification step in your account by entering the password.
Once you get the request for the security key, press %ok%OK on your Flipper Zero to confirm that it is you.
