Android Developers
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Android Developers

Illustration by Virginia Poltrack

Using BiometricPrompt with CryptoObject: how and why

Cryptography and key management on Android

Add biometrics to require user presence

Under the hood of the Android Biometric system

Working together: private data retrieval in a secure space

Figure 1

The CryptoObject

Now for some code

1. Import the Gradle dependency

2. Create an instance of BiometricPrompt

3. Build a PromptInfo object

4. Business-specific OnClickListener

Putting it all together





Articles on modern tools and resources to help you build experiences that people love, faster and easier, across every Android device.

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Isai Damier

Isai Damier

Android Engineer @ Google; founded; Haitian; enjoy classical lit and chess. Twitter: @isaidamier

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