biometrics

问题 Cheers, We started implementing biometrics authentication in our web system and came to a doubt. We're going to use a third-party solution for performing it which is going to be called via a web service. There are going to be four kinds of authentication: Regular one: username/password Challenge Fingerprint Cellphone All users will be authenticated using 1 . Optionally, some of them may also require 2 , 3 or 4 . What would be a good way of verifying which authentication type is required for a

问题 It's my final year project, which i'm making using java, and i have to develop one online attendance system for faculty and student. For faculty login, i need fingerprint login authentication, so i googled but i didn't find anything helpful in any case. During my research, i found these sdk neurotechnology, grfinger. But, i'm very confuse how to use these on my web application. My laptop already have one fingerprint hardware, which uses authentec driver for windows login. Please anyone help

问题 :) I have a big problem. I just bought a biometric device (DigitalPersona Fingerprint Recognition Sytem), and my problem is, it does not support PHP. Are there some alternative ways, so that I can still use my hardware device? If I won't be able to use the device, it's just like I throw my P5,000.00. :'( Help please. 回答1: Every biometric device stores info into its local database in the form of xml or flat files. And that biometric will be part of network so via its ip addresss you can read

问题 This question already has answers here : Closed 8 years ago . Possible Duplicate: iso 19794-2 fingerprint format. Hi all, I need to develop a system to match fingerprints. all fingerprints are already converted to ISO 19794-2 format. the input will also be in ISO 19794-2 format. how to check whether the input and the fingerprints in database matches or not. is there any algorithm to implement it? i need an algorithm to compare two fingerprints in ISO 19794-2 format. It would be more helpful

问题 I have a table named Attendancelogs where I am saving the records that I fetch from a biometric device, the table structure is; LogType defines the type of log i.e. Biometric / Manual CheckType defines the type of entry i.e. I or O VerifyMode defines the type of punch i.e. Fingerprint/Password isIgnore is used to exclude an entry from the logs. Now, what I am trying to do is to write a function called sortFunc(); that will process on the already stored records in the Attendancelogs table.

问题 I am trying to remove the recorded fingerprint information from a smartcard using the Windows Biometric Framework. I can delete the recorded fingerprints with the following steps: opening a session WinBioOpenSession logging in using the fingerprint reader WinBioLogonIdentifiedUser read the availabe used fingerprints WinBioEnumEnrollments remove the fingerprint information WinBioDeleteTemplate But this only works when the user is avaliable! Is there a way to remove biometric information as

问题 Suppose i've enrolled 5 fingerprints in my phone. I need to check which of the 5 fingerprint is used for login to my application. Or any way to check the fingerprint if it's not the primary fingerprint. 回答1: Currently this behaviour is not available in fingerprint API as for the API it's just authentication data and receive authenticated result from Android device.. 来源： https://stackoverflow.com/questions/57657816/is-there-anyway-to-identify-which-fingerprint-used-for-unlocking-accessing

问题 if i wanted to perform an iris scan, would i need any additional api's or can i just use whats readily available? 回答1: You don't need any new APIs to do biometrics as such, but specialized biometric APIs do exist. They're typically most helpful if you want to make inter-platform information sharing easier, skip some of the boring parts of writing image acquisition/storing programs, that sort of thing. Writing code that's compatible with all the relevant biometric standards can get pretty gory

问题 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.authenticate(promptInfo) it throws this exception: FragmentManager is already executing transactions . Here is the stacktrace: java.lang.IllegalStateException: FragmentManager is already executing transactions at androidx.fragment.app.FragmentManagerImpl.ensureExecReady(FragmentManager.java:2207) at

问题 Closed . This question needs to be more focused. It is not currently accepting answers. Want to improve this question? Update the question so it focuses on one problem only by editing this post. Closed 2 years ago . I want to build an biometric attendance android application. I want to get the fingerprints of each user and store them and match them accordingly. But i don't want to use the internet for storing the templates i want to store it in sqllite is it possible. If possible can u tell