flutter_locker

Flutter plugin that secures your secret with biometric authentication.

It uses:

• Locker on iOS (https://github.com/infinum/Locker)
• Goldfinger on Android (https://github.com/infinum/Android-Goldfinger)

Methods

• FlutterLocker.canAuthenticate()
• FlutterLocker.save(key, secret, androidPromptTitle, androidCancelTitle) As you when saving on Android, OS will show prompt and you also need to pass prompt title and cancel.
• FlutterLocker.retrieve(key, title, androidCancelTitle) This title is used in both iOS and Android prompt.
• FlutterLocker.delete(key)

Note:

• iOS only: app will not show authentication dialog when saving (authentication will always succeed)
• iOS only: you can't override password with new one. You need the use delete first.
• please follow Locker's and Goldfinger's setup to prevent any issues.

iOS:

• in order to use Locker, you need to ask permission for Face ID usage:
• add following to your Info.plist from drop down menu
  • Privacy - Face ID usage description
  • after new field was added, provide meaningful description
• failure to do so will result in following error

   This app has crashed because it attempted to access privacy-sensitive data without a usage description.  The app's Info.plist must contain an NSFaceIDUsageDescription key with a string value explaining to the user how the app uses this data.