fingerprint

问题 I'm working on Android FingerPrint native API's for couple of days and there are two things that I'm confused with. The documentation has the examples but doesn't explain why we need to work this way, so please, any security Guru here? I want to understand in depth the authenticate() function of the API's, or to be more specific to understand two of the parameters it takes : CryptoObject and Handler . It is working " perfect " at my POV when passing null to both of these parameters. So there

问题 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 in this version? I saw this as an option. KeyguardManager keyguardManager = (KeyguardManager) getSystemService(KEYGUARD_SERVICE); if that option is ok, how to translate it into xamarin forms for example () FingerprintManagerCompat fpm= FingerprintManagerCompat.From(CrossCurrentActivity.Current

问题 I have been developing my personal android app to store my passwords. (Since lastpass is paid for mobile). I currently use simple password authentication , but i would love to be able to take advantage of my fingerprint scanner . AndroidManifest.xml: <uses-permission android:name="android.permission.USE_FINGERPRINT" /> MainActivity.java: if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) { //Fingerprint API only available on from Android 6.0 (M) FingerprintManager fingerprintManager =

问题 That is my first question here I am currently working on an project Biometric attendance system and I am stuck at the place the fingerprints are saved in the database and when I retrieve fingerprints for verification and it retrieves only first record not others rows of datatable please help me in this regard. This is my code: protected override void Process(DPFP.Sample Sample) { con.Open(); SqlCommand cmd = new SqlCommand("SELECT *FROM EmpRegistration", con); SqlDataAdapter sda = new

问题 This question already has answers here : Closed 8 years ago . Possible Duplicate: Fingerprint authentication for php web app i want to build system that handle saving people value stuff in special store . when any client want to save his stuff in special box system will register his fingerprint so when he want to receive his stuff system will approve his identity by his finger print . note : that i want to save the fingerprint to the database so it can be used in another branch .. so each

问题 Androids 6.0 Fingerprint API cannot detect my fingerprint scanner on Samsung S5. Screen lock is secured with fingerprints I've 2 Fingerprints registered in fingerprint manager My S5 is updated to android 6.0 The fingerprint scanner is working fine, I use it to unlock my phone I cannot find anything to do with fingerprints in the Security Settings (Was told to allow Apps to have access to fingerprint here, but its not on it) In App Info of each app, is says Permissions: No Permissions

问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 5 years ago . The company has a web-based punch card application, but my boss wants to make employees punch in and out using their fingerprint rather than sharable passwords. Is there any free/open source/commercial SDKs that can be used? With a Java or ActiveX based embeddable component? Thanks in advance. 回答1: Most of the

问题 I want to login to my asp.net web application using fingerprint. That means I don't want to use any login id and password. I just want to login with my fingerprint. I have got a 3m cogent device and the device works fine but I don't know how to integrate the device with my software. I am using ActiveX. My Javascript code is: <script type="text/javascript"> $(document).ready(function () { $('#scan').click(function () { $('#dicscan').addClass('scanning'); setTimeout(function () { $('#dicscan')

问题 I have purchased a simple biometric fingerprint reader that is usually used for laptop security through a USB connection. It is just called biomentric finger print reader, not branded! It came with the software for creating security for laptop, and it works great. However, I had a different idea for it: I am intending to create a database of users fingerprints so that I can identify which user swiped their fingers on it, ie, to use it for different users' authentication using fingerprints . I

问题 I want to create one application which can match fingerprint form my server existing fingerprints, on my server side some fingerprints saved with the help of external fingerprint scanner. can i match with saved fingerprint? 回答1: Match in database You cannot match fingerprint in database, please read this : https://en.wikipedia.org/wiki/Fingerprint_recognition You have to match templates, thanks to a specific algorithm. To match on server, you need AFIS solution: https://en.wikipedia.org/wiki