Save
Upgrade to remove ads
Busy. Please wait.
Log in with Clever
or
show password
Forgot Password?
Don't have an account?  Sign up 
Sign up using Clever
or
Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account. Your email address is only used to allow you to reset your password. See our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
focusNode
Didn't know it?
click below
 
Knew it?
click below
Don't Know
Remaining cards (0)
Know
0:00
edit
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

Biometric Flashcards

Master Flutter Biometric Authentication with Interactive Flashcards

QuestionAnswer
What three unique biological characteristics are identified in the guide as common methods for biometric authentication? Fingerprints, facial recognition, and iris scans.
What is the primary security advantage of biometric data over traditional passwords? It is unique to individuals and cannot be easily replicated or stolen.
How does biometric authentication improve the user experience (UX) compared to passwords? It provides quick and seamless access via a touch or glance without needing to remember complex credentials.
Which official Flutter plugin provides the necessary APIs to interact with a device's biometric authentication system? local_auth
In which file must the `local_auth` dependency be added to a Flutter project? pubspec.yaml
In Android development, which permission is required specifically for modern biometric authentication methods? USE_BIOMETRIC
What is the purpose of adding the `USE_FINGERPRINT` permission in the `AndroidManifest.xml`? It supports older fingerprint-based authentication methods on legacy Android devices.
Why should the `uses-feature` tag for fingerprint hardware be set to `required="false"` in Android? To ensure the application remains functional on devices that do not have fingerprint sensors.
Which iOS-specific file requires the addition of a usage description for Face ID or Touch ID? Info.plist
What is the specific key name used in iOS to define the Face ID usage description? NSFaceIDUsageDescription
What information does the `isDeviceCapable()` method in the Biometric Helper class provide? It checks if the device hardware supports biometric authentication, regardless of whether it is set up.
How does the `isBiometricEnabled()` method differ from checking hardware capability? It verifies if biometric authentication is actually configured and enrolled by the user on the device.
Which method in the Biometric Helper class is used to distinguish between Face ID and Touch ID? getBiometricType()
Which method triggers the system's biometric prompt and returns a boolean based on the result? authenticate()
Why is a Biometric Helper class recommended for implementing authentication in Flutter? It encapsulates all biometric functionality, ensuring a modular and clean architecture.
In which Flutter widget lifecycle method should biometric status checks typically be initialized? initState()
Under what conditions should the biometric authentication button be displayed in the UI? Only when both the device is hardware capable and biometrics are currently enabled.
How should the `getBiometricType()` value be used to enhance the UI? To customize the button text to match the specific sensor available, such as 'Face ID' or 'Touch ID'.
According to the guide, where should the `LoginPage` be set in `main.dart` to integrate the workflow? As the home screen in the MaterialApp widget.
What is the recommended environment for testing biometric authentication implementation? A physical device with fingerprint or face unlock enabled.
What is a common limitation of testing biometrics on emulators or simulators? Biometric authentication may not work or is often unsupported on virtual devices.
How does implementing biometric authentication help with modern security compliance? It aligns the application with current security standards and high user expectations for data protection.
The `local_auth` package provides a simple API for authenticating users on both _____ and _____ platforms. Android; iOS
What logic should be implemented if `authenticate()` returns `false`? The app should handle the failure or cancellation and provide appropriate user feedback.
What is the final takeaway regarding the modular design of the Biometric Helper class? It allows the logic to be easily reused for other sensitive operations or advanced flows like app locks.
Created by: mobisoftinfotech
 

 



Voices

Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!
"Know" box contains:
Time elapsed:
Retries:
restart all cards