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Questions tagged [biometrics]

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

Biometric recognition is the process of recognizing a person's identity by analyzing some data derived from their body (physical traits, like fingerprint, iris or face) or behaviour (like gait or, to some extent, voice).

The Wikipedia page on Biometrics has more complete information.

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Handling a Biometric Fingerprint Attendance Device by using socket

I am trying to connect with a Biometric Fingerprint Attendance Device using a Java program. The device I am using is a Biocom Fingerprint attendance system. However, I am search and reading about that and I see the SDK could used which based on…
Maheera Jazi
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How to implement Face Recognition in Java using images?

How can I compare two face images, whether they belong to same person or not. Let me explain: The code will get two images as input and recognize it and compare them. If it belongs to same person (even though takes at different time) it will return…
Good Elephant
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can android phone be used as biometric finger print device

Possible Duplicate: Is fingerprint supported in android devices? Is it possible to use an android phone as a biometric finger print device?
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BiometricManager.canAuthenticate(BIOMETRIC_STRONG) == BIOMETRIC_SUCCESS but KeyPairGenerator.initialize() => java.lang.IllegalStateException on API 29

Sorry for such a long question. I've tried to include all relevant information and it is quite a lot. I've been working on this issue for a few weeks now and am in desperate need of help. General info I am developing a flutter app that requires…
molundb
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Face Id, biometry, face recognition unlock on Android devices in React Native

Currently I'm using expo-local-authentication and it works properly when Android device has touch id / fingerprint unlock possible also. Normal behaviour is when fingerprint is added and face registered then user can decide which biometry option…
Piotr Witkoś
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How can I implement fingerprint login authentication on a website application

I got an issue about implementing the login system that supports fingerprint recognition on a website for mobile phones, but I got stuck because I can't find any way to access customers' fingerprint sensor devices on their phones. I have searched on…
BlueCake
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Why do I get "Key user not authenticated" after removing a fingerprint from Pixel phone?

Summary On my Pixel 4a I cannot use a cryptographic key any longer after removing a fingerprint in the Android settings. Details To enhance my app's security I want to have its signing key invalidated once any biometric features (e. g. fingerprints)…
Landschaft
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I want to store Zk4500 fingerprint reader template in k50 biometric attendance machine both are from zktecho

I want to store Zk4500 fingerprint template in k50 biometric attendance machine . I am using java for zk4000 scanner and python for communicating with attendance machine(k 50). public void onAccept(){ if (count == 1){ …
Muzamil
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Show authentication prompt with only device credential option on Android 10 and lower

I can display biometric prompt with device credentials using 'androidx.biometric:biometric:1.2.0-alpha03' as, val promptInfo = BiometricPrompt.PromptInfo.Builder() .setTitle("Login to My App") .setSubtitle("Log in using your…
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When Prompting for Biometric Permissions on iOS: Will I ever need to ask for TouchID to be enabled?

Purpose: I am working on implementing biometrics as a means of validation in app and I want to get the permission flow as minimally invasive as possible. Problem: I know that FaceID requires an explicit permission and I understand that Apple made a…
LurkingNoob2587
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Standard scaler produces different values before PCA

I am doing a classification problem in biometrics. I am comparing with the euclidean distance each probe in the testing set with the gallery. Everytime I run the code I get different results. If I remove the scaler I get always the same results. Why…
user11543965
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Android - Is biometric information tied to a specific user on a device, or the device in general?

I want to enable a user to log in to my app using their biometric information. However, I'm aware that there is multi-user functionality for Android devices, where you can register multiple users on a single device. I don't want a different user on…
Chris Davis
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Multiple apps based on the same code base fails biometric authentication on iOS device

I have multiple apps based on the same code base. And we are having features called biometric authentication on the app when the app is opened. When I have the App-1 installed and then installing any other apps of mine like the App-2 app my…
Chandan Anand
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Flutter local_auth issues on android certain devices

I'm currently having issues with local_auth on certain devices: LG-G6 (Android 7.0) and Samsung Galaxy J7 Pro (Both running on android 7), and i believe there's more android devices having this issue. Authentication always fails on the…
Tshepo Sibiya
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Android - BiometricPrompt detect whether is a face id or touch id

In my Android app, I use this code to ask user for biometrical authentication: val title = "..." val subtitle = "..." BiometricPrompt.PromptInfo.Builder() .setTitle(title) .setSubtitle(subtitle) .build() My case…
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