Implementing biometric authentication

Given that you’ve implemented login sessions, it’s crucial to ensure that your device remains secure against unauthorized use. Otherwise, any person who takes your device can open and use your app with an active session. Fingerprint authentication is an effective solution for this.

While most devices already require a fingerprint or PIN to unlock them, you might want to add an extra layer of security to ensure that someone can’t access a protected app even with an unlocked phone. This is especially important for apps dealing with sensitive information or high-security risks, such as banking apps.

In this recipe, we’ll use the Plugin.Maui.Biometric library to implement fingerprint recognition. This library utilizes the device’s built-in fingerprint recognition capabilities to verify the user’s identity. We’ll configure the app to support fingerprint recognition and trigger a fingerprint check...