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Questions tagged [android-fingerprint-api]

Questions regarding the use of the Fingerprint Authentication API, introduced in Android 6.0 Marshmallow (API level 23).

323 questions
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Is it possible to use Mobile's fingerprint scanner as biometric device for authentication at server?

These days, almost all the mobile being launched have fingerprint scanners inbuilt. We can definitely authenticate the user at phone level (apps like Google Pay use it ), but is it possible to use the Mobile's fingerprint scanner as a biometric…
Rohith Ravi Teja Kilaparthi
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Use facial recognition for android to authenticate multiple users

I am looking to create app to authenticate users using facial recognition. I checked Android provides Biometric prompt to authenticate the user but I am not sure if This API can be used for my use case. Also, if I can use this API, how many facial…
Kanika
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Fingerprint overlay in samsung interupt

for some reason if i want to listen to the Fingerprint sensor, the overlay of the Samsung fingerprint(in front fo the device) is display on the screen and prevent from me to reach the screen below the fingerprint , when i remove the listening of the…
AndroidMan
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Certificate fingerprint is invalid?

I have generated my SHA1 code from my keystore but when I try to create an OAuth client 2.0, Google game console is giving me the error: "Certificate fingerprint is invalid". Anyone knows why this happens? How do I fix this?
Yaniv Haber
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Android Keystore that requires authentication, not unlocked by fingerprint but by pin only?

EDIT: This appears to be device specific. I have one emulator that this occurs on and one that it works how i'd expect. Would love a universal answer, but maybe there isn't one? Experiencing something which I think is a little odd. I've created an…
Kyle
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Do I need CryptoObject object, or null for the following use case during FingerprintManager.authenticate

When we call mFingerprintManager .authenticate(cryptoObject, 0 /* flags */, mCancellationSignal, this, null); I notice that it is completely fine to pass null for cryptoObject. According to FingerprintManager…
Cheok Yan Cheng
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BiometricPrompt and AccessibilityService

Previously, FingerprintManager could be used to handle fingerprint authentication, and did not depend on an Activity in order to go through a system dialog. It could be used from anywhere, as any of the sensor managers. Now, Google have released the…
SirKnigget
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Transferring Fingerprint image from android to PHP

I am working on attendance application using Android, PHP and MySQL, I want to transfer the result of the fingerprint scan capture to PHP then match the result of the fingerprint scan capture in the database if the fingerprint result is already…
John Aldrin Tayag
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How to implement external fingerprint device SDK in android?

I am making a app which registers fingerprint of the employees for registration. However I am facing difficulty in implementing the external fingerprint device SDK in my app. I have imported it as module but the gradle keeps on giving me error on…
Rahul Purti
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How to trigger KeyPermanentlyInvalidatedException when scanning new fingerprint

As mentioned here. I'm trying to trigger KeyPermanentlyInvalidatedException when new finger print was added to the device but this exception was not triggering. MyCode FingerprintActivity.java import android.Manifest; import…
Bahu
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Finger print authentication is not working after too many attemps

On button i'm showing dialog that requesting finger print after too many attempts and dialog still showing after 30 seconds finger pint wont listen, but if i dismiss dialog and go back and come on the fragment that has code for finger print…
blackHawk
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FingerPrint userauthenticate delay issue - Samsung S8 Device

Finger print authenticate issue occur only in Samsung S8 device running in Android Oreo 8.0.0 OS version. App in S8 takes 3 to 4 seconds to authenticate the user if setUserAuthenticatedRequired(true). 03-08 16:20:47.955 E/Log-6 (30285): 3 03-08…
Gopinath S
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Create an android studio activity that just compares the stored fingerprint with the fingerprint input by the user

Here is what i am really stuck at.. Everywhere that i searched i found out about the Google sign-in and passwords and various stuff but all i want is a simple activity where the user puts the finger on the fingerprint sensor, it checks whether it…
Chintan Mehta
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In which format fingerprint scanner stores fingerprint?

i am working working on project that involves fingerprint Scanner, i wanted that fingerprint to be stored in something, say a database. I searched the web, but there was no substantial information regarding this topic. It might be stored in an image…
Yousha Arif
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How to conditionally import a few dependencies?

I am facing a peculiar issue. Our app used to use the fingerprint sdk from Samsung for fingerprint authentication. Now from android M android came out with its fingerprint API's. So we moved to android libraries for all devices >= android M. However…
Sid
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