Questions tagged [biometrics]

Biometrics is a set of methods related to unique identification of people based on physiological or behavioural traits

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How to set fingerprint lock screen from adb?

I am trying to enroll fingerprint to android emulator with adb command line. I know I can set PIN with this command: adb shell locksettings set-pin 1111 I can enter security settings with this: ...
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Why does not the fingerprint reader recognize when uploading the application to the server?

I am developing a web application to read the traces with java and wilfly, the application runs correctly locally and the trace is saved correctly, but when I upload the war file to the server and ...
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Android Biometric Authentication return “unique id” and encrypt with it

i am having problem. I have searched google for biometric authentication but all example apis just returns me "authentication success" with boolean value. Example: https://proandroiddev.com/5-steps-...
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37 views

WinBioCaptureSample() is not able to capture samples from touch type fingerprint device

WinBioCaptureSample() works perfectly for swipe type device Synaptics FP(Swipe) and UPEK devices. In case of Synaptics WBDI(Touch) device WinBioCaptureSample() always returns fail reasons How can ...
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How to use sample from WinBioCaptureSample to identify user?

Currently i can capture biometric sample using WinBioCaptureSample and identify user using WinBioIdentify. This required two independent bio-metric device scan for getting sample and other for ...
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iOS Face ID/Touch ID Lock Screen Conflict in willEnterForegroundNotification

I have code that puts a blurred UIVisualEffectView over the current window when the didEnterBackgroundNotification notification is fired. It then tries to reverse this when ...
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41 views

Fingerprint image to ANSI/ISO template

My requirement is to: Develop an android app which capture fingerprint images. Grayscale captured images Extract minutiae from each grayscale image and get ANSI and ISO template. Problem I am ...
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FragmentManager is already executing transactions when Executing biometricPrompt?.authenticate(promptInfo) inside a Fragment

If you create biometricPrompt and promptInfo in the activity, it works fine. But I can't manage to make it work inside a fragment. This is inside of a fragment and it gets called inside OnViewCreated....
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How to change the configurations of Device programtically?

I am using Nitgen Hamster DX (HFDU06) biometric fingerprint device in my application. In production environment I am getting false matches continuously with this. I want to increase the security level,...
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1answer
27 views

Android Biometric hit FINGERPRINT_ERROR_LOCKOUT how to reset without waiting 30seconds

Android 6.0 above, not using Samsung library. Using android-google biometric library, when user hit maximum attempts it will throw FINGERPRINT_ERROR_LOCKOUT. I know that after 30seconds user is allow ...
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1answer
85 views

How to remove wrapped/custom event handler added from an instance of a class VB.NET

I need to create multiple instance of zkemkeeper.CZKEM to create active (250+) connections to multiple biometrics devices with events at a time. I created a class to do my desired output: Public ...
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Problem connecting with zkeco k40 biometric attendance

I want to connect ZKteco k40 with php on xammp localhost to get attendance data what I'm doing write now Given ip address to zk40 192.168.0.201, subnet mask 255.255.255.0, gateway 192.168.0.1, DHCP ...
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Trying trigger biometric prompt without authentication

Im working on an app that requires a PIN to allow certain tasks (purchasing, dealing with credit cards, etc). I would like to add the ability to use biometrics. I want to be able to ask for ...
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1answer
115 views

Android crashed after updating androidx biometric to 1.0.0-alpha04

Everything works fine with 'androidx.biometric:biometric:1.0.0-alpha03', however when I build my project with the latest 'androidx.biometric:biometric:1.0.0-alpha04' and call myBiometricPrompt....
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1answer
29 views

When connect fingerprint scanner /zk9500/ to tablet, doesn't ask permission

I'm using this fingerprint scanner /zk9500/ first time. i compile jar files. implementation files('libs/zkandroidcore.jar') implementation files('libs/zkandroidfpreader.jar') So i write this code. ...
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100 views

BiometricPrompt crashes on Samsung S9 with Face unlock

I am using the new BiometricPrompt API in Android P (API 28) in my application. (I am actually using it inside a wrapper based on this project so that it functions on older devices too, but that is ...
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26 views

python identify WSQ image from oracle blobs

I need to identify from a set of blob rows in an oracle table which is an image of type WSQ (biometric printing). In this table there are images in different formats. So far, I've been using the PIL ...
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1answer
50 views

Biometrics - FingerprintManager Xamarin forms on Android PIE - 9

FingerprintManager#isHardwareDetected() and FingerprintManager#hasEnrolledFingerprints(). Both of which are deprecated in Android 28. What else could I use in order to see if fingerprints are enrolled ...
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27 views

ZK Teco Finger Print PHP

I tried to get the attendance data using tad-php library but I got an error error to connect, tried following all tutorial and troubleshot i found on the git or google but still cannot connect. My ...
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1answer
73 views

login using fingerprint authentication with name and password

I have been trying to implement a login screen that takes a username and password. Once the user has logged in once I want him to have the ability to login with the device owner's fingerprint. I was ...
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1answer
34 views

Getting a unique id after biometrics authentication in flutter

In flutter, the local_auth plugin provides a way to authenticate users using biometrics. But it only returns a Future<bool> response: var localAuth = LocalAuthentication(); bool ...
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1answer
52 views

How to connect to zk ua300 using password with Connect_Net?

I use VBA to communicate with ZK UA300 and everything is fine, but the problem is that anyone has the device's IP Add., can do anything they want to the device. I do not want anyone to be able to ...
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146 views

Customize biometricPrompt

I have problem with customization biometricPrompt in android devices. I use only authorization with fingerprint, but some devices with android 9.0 (for example Samsung Galaxy S10+) for authorization ...
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16 views

AndroidX biometrics force fingerprint

Is it possible to force the AndroidX biometrics library to make use of fingerprint, rather than other mechanisms? Right now, some Samsung devices are forcing our app to use Iris instead of fingerprint,...
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1answer
182 views

Fingerprint BiometricPrompt on android P from a View

I am using FingerprintManager to authenticate my app with fingerprint. I have and android View with the fingerprint ui and when the FingerprintManager.authenticate callbacks are called I handle the ...
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1answer
84 views

Can we use Face Tracking on Swift Playgrounds?

So basically the Delegation method func renderer(_ renderer: SCNSceneRenderer, nodeFor anchor: ARAnchor) -> SCNNode? aren't called on Swift Playgrounds. I'm using an iPad Pro 11 (with Truedepth ...
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40 views

How to check if the biometric scanner is available and initialized in Xamarin android BiometricPrompt

Failed biometric(fingerprint) scan attempts are handled by OnAuthenticationFailed() callback of BiometricPrompt.AuthenticationCallback class. The behavior I noticed is, it lets the user attempt 5 ...
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35 views

Xamarin android BiometricPrompt.AuthenticationCallback OnAuthenticationError not available

There is no override method for 'OnAuthenticationError' callback in Xamarin android version of BiometricPrompt.AuthenticationCallback class. How can I handle any error callbacks in that case? Native ...
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3answers
56 views

Is there any way to use same fingerprint authentication for android and iOS once it registered?

I want to use same fingerprint that user registered while signing up to app when he signed up than can I use that fingerprint for ios / android if user is registered to app form android / ios?
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1answer
88 views

Face-ID enabled without info.plist key?

So I have an application currently on the store that supports Touch-ID login, A user with an iPhone X iOS: 12.1.4 sent me a video that he can login using his face ID and as i recall i never ...
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36 views

Need liitle help in matching two isotemplates in java

Function is used to capture fingerprint and saving to file. new Thread(new Runnable() { @Override public void run() { SetTextonuiThread(""); try { FingerData fingerData = ...
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36 views

What is the usage of biometrics(Touch ID/Face ID) API that cannot identify multiple users?

[Question] I understand biometrics API(Touch ID/Face ID) is for authenticating if the birometrics are registered to the device and not for identifying multiple users. I think this behavior is ...
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30 views

Php Zklib Epoch Date issue in get attendence using ZEM500 device

I am using php_zklib in order to connect to bio metric devices, I am facing issue in retrieving checkout details in get attendance and the timestamp of the attendance is coming as 1-01-200 00:00:00,01-...
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1answer
111 views

Enable or disable the biometric login in Swift 4

I'm developing an iPhone application in swift. In my app, its provide users to login by using the faceID or touchID. And it is working fine. Also in my app settings page, there is a switch button to ...
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Fingerprint Manager or Biometrics ? for android M and above

I want to know which one is better to use, Fingerprint Manager or new Biometrics introduced in android pie 9. So, I have creating a chat app, and I came across this feature called Fingerprint Manager....
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208 views

Samsung Devices OS 9.0 throw 'android.security.KeyStoreException: Key user not authenticated', when the “Preferred Biometric” is 'Face recognition'

We implemented new android.hardware.biometrics.BiometricPrompt replacing the existing android.hardware.fingerprint. The new Biometrics API works as expected until we have the 'Preferred Biometric' as '...
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44 views

SIDEKIT i-vectors data partitioning

I have been (loosely) following the SIDEKIT tutorial on speaker identification using i-vectors (see Run an i-vector system for details). The tutorial mentions that: The lists (for i-vectors) needed ...
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49 views

API to setup Face unlock (only if feature provided by the Device) for a particular app in versions below 9.0

I am trying to support Android OS face unlock only for my particular app if User opts to. As I browse, I could find that there was an API called FingerPrintManager and now a new API called Biometric ...
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62 views

When multiple biometric sensors are available, how to select preferred type to use?

I am using BiometricPrompt in this way: val biometricPrompt = BiometricPrompt.Builder(this) .setNegativeButton("Cancel", executor, cancelListener) .build() ...
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4answers
358 views

How to make KeyDown and KeyUp on android device?

I have a question. Im making Keystroke dynamics app on android devices. For now, i make an activity with measure string and EditText. I want to catch KeyDown and KeyUp events on software keyboard. ...
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1answer
40 views

Is there a way to login to the server using voice ID when verification happens locally?

If voiceprint verification happens locally in a mobile app, how would you let the server securely know that the user is verified? I thought about using an API key of sorts, maybe generating a random ...
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42 views

Insisting on biometric authentication only

I'm building an authentication mechanism where I want a certain level of confidence around the user's identity. Biometric authentication is fine, but I have challenges around use of password / PIN. ...
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2answers
88 views

What means [unowned self] and what are the benefits?

I´m trying to integrate Face/Touch ID Login but i saw in apples documentation [unowned self] in a closure. What is that and what are the benefits? Example code: let context = LAContext() var ...
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87 views

Web Based FIngerprint verification System using Digital Persona

Hello Guys I want to implement a web based fingerprint verification system .I have done a pretty comprehensive research and all I see is for desktop which I have already implemented but system ...
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1answer
132 views

Check FaceID is enabled or not

I want to get the string for the current lock type used in the device, whether it is FaceID, touchID or PassCode. Below is my code :- func getBiometricType() -> String { var biometricType: ...
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1answer
43 views

Can I Use Smartphone Biometric Sensor to scan Public Fingerprint

Can I use the Bio-metric sensor provided by my Smartphone to be used as a public scanner to scan and store them in my Back-end Server through API calls? The Libraries that I've found (in Native codes ...
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2answers
92 views

Fingerprint FMDs compatibility

I'm designing a c# application for an access control turnstile with biometric verification. The turnstile uses the ZKTeco SF300 (IP) fingerprint scanner. For registration (at a receptionist's desk a ...
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1answer
99 views

How to built client android app to scan fingerprint form morpho scanner device

I am new to Android, I have to build a biometric fingerprint scanner using morpho fingerprint device which scans and authenticate the user's and allow to do some operation in my app. If there any way ...
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1answer
48 views

Create own software for biometric devices

I have a question: I want to know if I have biometric device of zkteco company and I want to create my own software for this device by using c# then how can I do this? Actually I am a newbie and ...
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1answer
32 views

How to know if face id is enabled

First of all, why is touch id "enabled" to every app but not face id. So if you have touch id set up every app can use it, but face id requires for user to accept it for every app. How to find if ...