Before You Start

Before you get started, learn the development process.

• Obtain the user authentication capabilities supported by the device.

• Initiate a request for user authentication and obtain the authentication result.

• Verify and use the authentication result. For details, see Key Access Control via Secondary Authentication.

• (Optional) Cancel authentication.

• (Optional) Apply custom authentication.

Requesting Permissions

The application capable of user authentication based on biometric features (such as facial and fingerprints) must have the ohos.permission.ACCESS_BIOMETRIC permission.

This permission is a system_grant (system authorization) permission. You can declare it in the requestPermissions tag in the module.json5 file. For details, see Declaring Permissions.