Feasibility of Unique Biometric Assignments in an App

Hi everyone,

I'm looking into adding unique biometric authentication (fingerprints only) to a mobile app I'm developing. Is it possible to assign and recognize individual biometric data for a unique scan for the app? I'm interested in the technical feasibility, any notable security concerns, and would appreciate any insights or experiences you might have on this topic.

Imagine logging into your phone or laptop using your thumbprint, and then, with the same device, accessing a specific app solely with your pinky finger's biometric data. This dual-layer security approach leverages different fingerprints for device and app access, enhancing user-specific authentication

Thanks in advance for your help!

Replies

Is it possible to assign and recognize individual biometric data for a unique scan for the app?

No. Apple’s biometric APIs — Local Authentication and the keychain option accessible via the Security framework — do not let you distinguish between different fingerprints or faces.

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