Biometrics to access the Token Store

[Aaron-Ritter]

Biometrics to access the Token Store

Problem

Mobile devices are more likely to be lost, stolen, or used by unauthorized persons. To strengthen the security of an app and protect it from unauthorized access. One way is to lower the session expiration time. Which causes the user to go through the login process more often.

Solution

Instead, we can use biometric authentication for accessing the token store in our application.

Use Face / Touch ID for iOS to access the token store. The id, refresh, and access token would then be encrypted before storing them.

This would introduce an open / locked state on the token store. When opening the app, the user would have to unlock the store with biometrics. Then the tokens can be decrypted and cached in memory until the app is closed.

We could also lock the store after some inactive time.

Should the user decline biometric authentication, persistent token storage will be disabled, requiring authentication via FusionAuth upon each application launch or following any event resulting in memory cache clearing.

Alternatives/workarounds

TBD

Additional context

N/A

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