fingerprint

问题 I'm working on a flutter application using firebase authentication system and Firestore. I worked for 3 months and I didn't encounter this error before. Now I published my application on play store and I found this error also for debug version with the emulator. I think to have configured properly the system because firebase worked for a while. I think that this error occurs for all the apk that I builded after the upgrade of flutter. Some suggestion to solve my problem? Thanks I enter my

问题 I'm working on a flutter application using firebase authentication system and Firestore. I worked for 3 months and I didn't encounter this error before. Now I published my application on play store and I found this error also for debug version with the emulator. I think to have configured properly the system because firebase worked for a while. I think that this error occurs for all the apk that I builded after the upgrade of flutter. Some suggestion to solve my problem? Thanks I enter my

问题 I have a biometric USB fingerprint sensor for android devices. I want to develop an application that reads a user's fingerprint via sensor and store it into an SQLite database so that it can be verified when the user login. So, Are there any tutorials or code samples that explain how to do that? Thanks In Advance. 回答1: Reading users biometric materials and storing them in an SQLite database seems a suspect usage of biometrics on Android. Normally quite a bit of security measures go into

问题 I have implemented JWT token generator library from Here, and i am able to get RS256 Token (Payload). But i am having issue with Header data: I need one header value "x5t", which is not generated from the given library. I need header data like: { "typ": "JWT", "alg": "RS256", "x5t": "COm8ON2SD2MTc5jwcxZ0vE3-XJo" } I am getting first two parameter successfully, but not able to get valid third parameter. My Sample code is : $fingerprint = str_replace("SHA1 Fingerprint=", '', system('openssl

问题 I'm going to provide the fingerprint authentication from server side via WebAPI. The below code is the fingerprint comparison part. var allFingerprints = container.Fingerprints.OrderByDescending(p=>p.FingerprintID); List<Fmd> fmdList = new List<Fmd>(); foreach (var fp in allFingerprints) { fmdList.Add(Fmd.DeserializeXml(fp.FMD)); } IdentifyResult identifyResult = Comparison.Identify(customerFmd, 0, fmdList, thresholdScore, 2); If the small amount(<3000) fingerprints are in the DB, I think it

问题 I've been busy with understanding the MusicBrainz database in the past few hours and as I noticed there's no command line application to tag or fingerprint audio files. Are there any CLI implementations on Musicbrainz's fingerprinting? And how can I create those fingerprints? I found some development tools on their website (python-musicbrainz2, libdiscid and the XML webs service) but I couldn't find a simple tool or app which creates those fingerprints (the developments tools only seem to be

问题 I've been busy with understanding the MusicBrainz database in the past few hours and as I noticed there's no command line application to tag or fingerprint audio files. Are there any CLI implementations on Musicbrainz's fingerprinting? And how can I create those fingerprints? I found some development tools on their website (python-musicbrainz2, libdiscid and the XML webs service) but I couldn't find a simple tool or app which creates those fingerprints (the developments tools only seem to be

问题 We have EP300 device working in server mode. I've implemented Anviz Client application in PHP language in accordance with this protocol description. I have noticed some unexpected stuff in a handler for Get record information (0x3C) command: from time to time, with expected response (with ACK 0xBC), I'm receiving additional lines like this: a500000001df00000e000000000a259a2b6501030000001bd9 . Here is complete "parsed" example of such response: STX | CH | ACK | RET | LEN | DATA | CRC16 --- | -

问题 I am a beginner in android development.I want to create an application having Finger authentication.I want to register multiple users(50) finger prints using finger sensor of phone.Also i want to authenticate it when user logins.Can anyone help us? 回答1: FingeprintManager only has these 3 features: authenticate : for authenticating user hasEnrolledFingerprints : Determine if there is at least one fingerprint enrolled. isHardwareDetected : Determine if fingerprint hardware is present and

问题 I am a beginner in android development.I want to create an application having Finger authentication.I want to register multiple users(50) finger prints using finger sensor of phone.Also i want to authenticate it when user logins.Can anyone help us? 回答1: FingeprintManager only has these 3 features: authenticate : for authenticating user hasEnrolledFingerprints : Determine if there is at least one fingerprint enrolled. isHardwareDetected : Determine if fingerprint hardware is present and