Flutter plugin to store data behind biometric authentication

Flutterappworld

4 years ago

biometric_storage

Encrypted file store, optionally secured by biometric lock for Android, iOS and MacOS.

Meant as a way to store small data in a hardware encrypted fashion. E.g. to store passwords, secret keys, etc. but not massive amounts of data.

On android uses androidx uses KeyStore and on iOS LocalAuthentication with KeyChain.

Check out AuthPass Password Manager for a app which makes heavy use of this plugin.

Requirements:
- Android: API Level >= 23
- MainActivity must extend FlutterFragmentActivity
- Theme for the main activity must use Theme.AppCompat thme. (Otherwise there will be crases on Android < 29) For example:AndroidManifest.xml:<activity android:name=”.MainActivity” android:launchMode=”singleTop” android:theme=”@style/LaunchTheme”xml/styles.xml: <style name=”LaunchTheme” parent=”Theme.AppCompat.NoActionBar”> <!– Show a splash screen on the activity. Automatically removed when Flutter draws its first frame –> <item name=”android:windowBackground”>@drawable/launch_background</item> <item name=”android:windowNoTitle”>true</item> <item name=”android:windowActionBar”>false</item> <item name=”android:windowFullscreen”>true</item> <item name=”android:windowContentOverlay”>@null</item> </style>

include the NSFaceIDUsageDescription key in your app’s Info.plist file
enable keychain sharing and signing. (not sure why this is required. but without it You will probably see an error like:SecurityError, Error while writing data: -34018: A required entitlement isn’t present.
Requires at least Mac OS 10.12

Provides the list of the opensource Flutter apps collection with GitHub repository.