678 questions
-2
votes
1
answer
33
views
Capacitor biometry unwanted call
We have CapacitorJS 6.0.0 Angular 18.2.2 app which uses capacitor-native-biometric 4.2.2.
During new version release Android version was/is fine but Testflight/iOS version since this release calls ...
- 343
0
votes
0
answers
16
views
How to use biometrics with an existing OAuth system
My mobile app has this (fairly common) authentication user experience:
user signs in with email and password
user is prompted to enable biometrics for faster access next time
when user returns to app ...
- 1,295
0
votes
0
answers
22
views
Get real time Fingerprint log from zkteco speedface v5l to c# winform
I attempted to integrate my Winform application with real-time attendance.
I have used the zkemkeeper class. devices connected.
can read other data. but cannot get real-time log.
private void ...
- 103
0
votes
1
answer
47
views
Checking if user has enrolled facial recognition
I have an application that checks if the user has facial recognition and fingerprint recognition for biometric purposes.
I have to do two checks for each type of biometric.
Check 1 - Check if the ...
- 361
0
votes
0
answers
40
views
Implement Biometric Passkey Login for Smart Contract Authentication Using X and Y Coordinates in React Native?
We attempted various approaches using different npm packages, such as react-native-passkey and @turnkey/react-native-passkey-stamper, but these solutions didn't fully address our requirements for ...
0
votes
0
answers
22
views
Getting Missing biometric data as specified in “Uses” error with finguer print authntication
I'm taking finguerprint data with JS code and pass to UIDI for validation but it's sending back below error
Missing biometric data as specified in “Uses”
How to resolved this error ?
var XML = ' <...
0
votes
0
answers
29
views
Is it possible to access and store biometric data from IOS and Android devices into my own database for analysis? [duplicate]
I am doing a project for my school FYP. So my topic is to develop an mobile app to collect users' biometric data for vulnerability assessment/analysis. And suggest mitigation strategy to mitigate ...
- 1
-1
votes
1
answer
168
views
How do apps properly validate Face-id or biometrics before important actions on the backend?
I have a theoretical question, how is a mobile app supposed to handle Face-id or biometrics being required before certain task.
Let's say a banking app asks for Face ID on iPhone before making a ...
- 858
0
votes
0
answers
50
views
MAUI and IFingerprint: how to authenticate the user after a resume?
In my NET8 MAUI application, I added the IFingerprint in order to authenticate the user via biometrics. It is working if the app displays a login page.
What I like to do is authenticate the user when ...
- 5,998
0
votes
0
answers
58
views
Started a project on Visual Studio2022 using C++, but error 'C3861' appears on my .cpp when using Windows Biometric Framework sample code
This is the Output:
1>------ Rebuild All started: Project: WindowsProject01, Configuration: Debug x64 ------
1>WindowsProject01.cpp
1>C:\\Users\\user\\source\\repos\\WindowsProject01 - Copy\\...
0
votes
0
answers
31
views
Is fingerprints biometric authentication supported in flutter web?
I'm building a web verification system with flutter. And it requires biometric data capturing like fingerprints, but the problem is no biometric (fingerprints) package support flutter web. Is there a ...
1
vote
0
answers
358
views
Reading Digital PErsona HId 4500 Reader in python using C types
im new into programming, im using a sample c# code from SDK Digital persona, in python.
I read SDK and didn't found the exact conversion, im excepting the Code to read the USB finger reader and ...
- 11
2
votes
0
answers
423
views
Using Plugin.Fingerprint for Face ID Authentication in .NET MAUI
I'm working on a .NET MAUI project and trying to implement Face ID authentication using the Plugin.Fingerprint library. However, it seems the library prompts for fingerprint authentication instead of ...
- 101
0
votes
1
answer
247
views
EXC_BAD_ACCESS KERN_INVALID_ADDRESS swiftui
After reading and trying several solutions like enabling zombie,adding exception breakpoint etc didnt worked for me to find the actual reason of my crash. Below is the stack trace for the crash.
In my ...
- 33
0
votes
1
answer
66
views
CORS error when using a biometric device API with React
I have an API that initiates scans for biometric data via a biometric device connected through USB and verifies the same data from the biometric device. This API has been installed on my Windows ...
- 95
0
votes
0
answers
25
views
How to create an Android SecretKey that is invalidated when a new finger print is enrolled
I've been strugling to achieve the following scenario:
I want to authenticate my user via biometrics, and when the user enroll a new biometry I want to invalidate the key or get an exception.
I've got ...
0
votes
1
answer
52
views
Prevent Username Autofill in Incorrect UITextField with Biometric Authentication
I'm encountering an issue with the autofill behavior in one of my iOS applications. On an action confirmation screen, users can enter a reason in the first text field and their account password in the ...
0
votes
1
answer
245
views
WebAuthn API not returning expected challenge token
I am currently trying to integrate biometric logins to my webapp. I've been using the WebAuthn API to accomplish this. According to the spec and other docs I've read the server needs to provide a ...
- 803
0
votes
0
answers
58
views
How to compare two different HASHES that correspond to a single person
hope y'all doin awesome.
I've been struggling with some HASH stuff, and I've come to a point where I don't really know what to do, so I'm really hoping stackoverflow could give me a hand.
I've ...
- 1
0
votes
0
answers
36
views
biometric web authentication js
How to implement biometric web authentication in JavaScript web applications.
I ran my web application on an Android device, but encountered an error stating 'passkey not available. where store ...
0
votes
0
answers
41
views
IOS: Why doesn't the native Face ID alert show more than once?
Can anyone clarify (with a source) why when a user attempts to enable Face ID for an app, they only see the native alert prompt to activate it, if it's the first time they try to enable it?
Why do ...
- 1
0
votes
0
answers
189
views
How could I use BiometricAuthentication in MAUI?
Note. This question only refers to Android, for now. I will leave IOs for a later date.
I have the following situation in MAUI (which means C# in Visual Studio). I need to allow fingerprint ...
- 359
1
vote
0
answers
102
views
how i can implementation faceId in react-native in android with react-native-keychain?
"I am working on a project where I am implementing biometric login using React Native. I am using the react-native-keychain library, which supports Face ID and Touch ID on iOS. However, it seems ...
- 21
0
votes
1
answer
14
views
How to calculate TDR @ % FDR 0.02?
how do I calculate TDR (%) @ FDR = 0.02% in Python?
I have found the ROC curve and stored the fprs, tprs , threshold and interpret the value of tpr at different fpr values but the problem is there a ...
- 1
0
votes
0
answers
278
views
Store refresh token securely with a biometric authentication
I am building a Mobile app that uses Identity server for login cycle, after a successful login from the user, I want to store user's refresh token for future logins to be able to login with his ...
- 1,772
0
votes
0
answers
168
views
Getting Private Key with biometric authentication in react native, expo, native module, Android app
The plan is to open the app and get a list of approvals that need to be made. Authentication would not be required to open the app but in order to approve or reject, the user would have to provide a ...
- 137
0
votes
0
answers
20
views
Android biometrics auth with only fingerprint
I'm trying to make biomertics authentication on my app.
is there any way to restrict user to use only fingerprint?
I saw fingerprintmanager deprecated and new biometrics plugin doesn't divide face and ...
- 1
0
votes
1
answer
72
views
Issue with Windows Biometric Framework Capture Sample for Capacitive Touch Fingerprint Sensor
I am currently working on an application that involves capturing fingerprint images using the Windows Biometric Framework Capture Sample. The application works fine with optical sensors found in ...
0
votes
0
answers
72
views
Not getting option for biometric face authentication
I am using biometric authentication for getting into the app, but the problem is I am not getting option for face-authentication.
This is the gradle dependency
implementation "androidx.biometric:...
- 23
0
votes
0
answers
51
views
Can I use my own biometric authentication to the autofill extension?
Problem: The aim to the post is to find any way to use biometric verification(no system default) in autofill extension.
I've tried using ImagePicker, AVFoundation and AVCapture to open the camera, and ...
- 1
0
votes
1
answer
390
views
Azure B2C Face id, touch id biometric authentication
We are migrating to B2C. Current native solution uses libraries to do biometrics and calls APIs to authenticate with legacy IDP. We want to use web view for B2C on the native implementation and I read ...
- 627
0
votes
1
answer
52
views
com.futronic.SDKHelper cannot be resolved
i received a challenge on my job, that consists in develope a desktop system using java for collect biometrics data.
I decided to compile the java example they have on its own drive, but I'm not able ...
0
votes
0
answers
111
views
how to validate fingerprints in angular?
I am working on an Angular web application that uses the DigitalPersona 4500 fingerprint reader device u are u. The application aims to register fingerprints and store them in a database for later ...
0
votes
0
answers
15
views
how to pull data automatically from iFace 702 and update it in the database?
how to pull data automatically from iFace 702 and update it in the database?
i only tried the manual backup. im using vb.net. it is already displaying in my system but i want it to be automatically ...
0
votes
0
answers
105
views
ZK-Teco Get SMS from device in JAVA
I am encountering issues while trying to fetch SMS information from a ZK-Teco device using Java code. Although I can manually convert the response byte code to a string and display the content ...
0
votes
0
answers
192
views
Biostar 2 suprema hidden database
Hellow devs, I kind of develop an app to get reports from the sql biometric biostar 2 suprema in python i get this project for an uncompleted project in job and i had to make it work, i saw a ...
- 77
0
votes
1
answer
371
views
When to use BIOMETRIC_STRONG (Class 3), BIOMETRIC_WEAK (Class 2) and DEVICE_CREDENTIAL?
I am working on the biometrics authentication, but I have no idea about which biometric level to use. Can Someone help me understand when should I use BIOMETRIC_STRONG (Class 3), BIOMETRIC_WEAK (Class ...
- 21
0
votes
0
answers
110
views
WinBioEnrollBegin gives "DuplicateTemplate" error when try to begin fingerprint enrollment
I have a Windows service runs under LocalSystem account. Service can identify fingerprint correctly. My problem is when i start enrollment it gives "DuplicateTemplate" error despite i delete ...
- 165
0
votes
1
answer
196
views
Flutter BioAuth how to detect user changed bio info
I'm using package local_auth to do the bio auth in my flutter project, but im facing a issue that when user change the bio info, then app should detect the changes and notify user that the bio info ...
0
votes
1
answer
416
views
How to handle user credentials in biometric user sign in using firebase authentication in a flutter mobile app?
I want to add biometric user sign in to my flutter app. Currently I have implemented the email/password type firebase authentication in the app. Along with that, I would like to add the biometric sign ...
0
votes
0
answers
263
views
Biometric Attendance Device with Direct Real Time Nodejs VPS Server Connectivity
I am planning to develop a custom, real-time attendance system using Node.js and I'm looking for recommendations on both the architecture and biometric devices that can integrate smoothly with a Node....
1
vote
0
answers
516
views
Windows Hello Biometrics with Python
Is it possible to use windows hello with python? For example, if anyone has ever used dashlane (password manager), you can use windows hello to unlock your account or retrieve passwords. Is it ...
- 1,318
0
votes
1
answer
252
views
Android biometrics login add additional non controlable text
I found out strange behaviour of Android Biometrics Login dialog. Android add additional text (which I don't even have in my app strings) which I cannot change. As you see on picture below when I try ...
- 980
3
votes
0
answers
330
views
Flutter local_auth package: number of failed attempts to login
I am using local_auth package in Flutter, where i am using mostly finger print as a biometric way to authenticate and login. I noticed local_auth has a built-in mechanism of only 5 wrong attempts to ...
- 99
1
vote
0
answers
68
views
Decrypt data in web app only if device unlock solved (biometrics, PIN)
In a web app I can encrypt data via web crypto:
https://developer.mozilla.org/en-US/docs/Web/API/SubtleCrypto/encrypt
I can store the key as non-extractable CryptoKey in indexed db.
Since the device ...
- 35
1
vote
0
answers
163
views
Attach biometric data from Wacom STU SDK to a PDF document
I need to implement Wacom tablet handwriting in my Java software and I'm using the STU SDK for Linux.
In the samples that are present in the SDK it is shown how to acquire the PenData and transform ...
0
votes
1
answer
106
views
Is there a security or other reason that we can only trigger biometrics from the web via webauthn?
I would like to add biometrics capability to my web app.
It seems to me that the only way to trigger device unlock (biometrics, PIN etc.) is with webauthn API through navigator.credentials.get():
...
- 322
0
votes
0
answers
41
views
Capturing Fingeprint on Mobile Apps
Is it possible to capture and store the fingerprint scanned by mobile apps, then store the captured data to a server? I want to make an authentication using fingeprint biometrics, but the fingerprint ...
- 21
0
votes
0
answers
351
views
Aadhar Authentication RD Service for fingerprint IOS
I am developing app with Aadhaar payment which needs fingerprint authentication using Aadhaar UIDAI. but in market there are lot of fingerprint scanner devices. each device has their own rd service ...
- 107
2
votes
1
answer
747
views
Android biometric - How to detect biometric is lockout?
I am developing a app with biometric.
I try 5 attempts and biometric sensor is locked and I get errorCode 7 from AuthenticationCallback.
biometricPrompt = BiometricPrompt(this,
executor!!, ...
- 21