android-fingerprint-api

I have gone through the android finger print sample provided by Google. https://github.com/googlesamples/android-FingerprintDialog As I am new to security standards, I am unable to understand the following. Why we need to use Keystore, key, CryptoObject... etc? Simply It could be like, ask fingerprint manager to authenticate the user and it can simply return the status(success/failed) Do I need to generate new key every time on each authentication? Why we need to use Keystore, key, CryptoObject... etc? Simply It could be like, ask finger print manager to authenticate the user and it can simply

I'm writing a application feature to authenticate user using Biometric fingerprint authentication API. And it worked as expected with combination of BiometricPrompt API. In general it display own UI dialog so it can be unified across Android device.(Improvement from Fingerprint Manager API) In one of device testing scenario I come across in-display (on screen, e.g. Oneplus 6T device) fingerprint support instead rear biometric hardware option. When I run application on it, on call of biometricPrompt.authenticate(..) instead of dialog it display in-display fingerprint authentication option.

I am testing on Pixel device with Fingerprint Gestures ON from accessibility. I am trying to get the gesture callbacks using FingerprintGestureController but never getting any gestures in return even after I turn the accessibility ON for this app from Settings->Accessibility. isGestureDetectionAvailable() is always returning false to me. Can someone please help. Here is the code: my_gesture_service.xml <accessibility-service xmlns:android="http://schemas.android.com/apk/res/android" android:accessibilityFeedbackType="feedbackGeneric" android:accessibilityFlags="flagDefault" android

I am looking to get started with the Marshmallow Fingerprint Authentication API. I understand that to ask for permission, I must use the following method: ContextCompat.checkSelfPermission(getContext(), Manifest.permission.USE_FINGERPRINT); And I must check if the device is running API level 23 or higher. But before I ask for permission, I would like to check if the device actually has a fingerprint scanner to begin with. I found the following two methods to do this check: FingerprintManager manager = (FingerprintManager) getSystemService(Context.FINGERPRINT_SERVICE); manager

I am trying to decrypt encrypted text after the user is authenticated by the Android M Fingerprint API. I have been mostly trying to follow the Android Security samples , and the examples provided in the KeyGenParameterSpec documentation. I have been able to successfully encrypt the text with the public key, but when I call cipher.doFinal with a Cipher using the private key in DECRYPT_MODE , I get a KeyStoreException "Unknown error": 03-15 10:06:58.074 14702-14702/com.example.app E/LoginFragment: Failed to decrypt password javax.crypto.IllegalBlockSizeException at android.security.keystore

I have generated my SHA1 code from my keystore but when I try to create an OAuth client 2.0, Google game console is giving me the error: "Certificate fingerprint is invalid". Anyone knows why this happens? How do I fix this? I've contacted Google Play Developer Support about this issue (I've got a same problem). Here is their answer : Please ensure the key is set to 2048 bit and is valid for at least 25 years. I've tried it, but sadly my debug.keystore is still not getting accepted, maybe there will be some luck on your side. $ keytool -genkey -v -keystore debug.keystore -storepass android

I am using Android Studio on Mac El Capitan. How do I get the release Certificate Fingerprints? I need it for Firebase. I am not sure exactly how to get it. Evin1_ Just to test it ( with the debug fingerprint ), run the following command in any directory with the terminal. $ keytool -exportcert -alias androiddebugkey -keystore ~/.android/debug.keystore -list -v Then copy the SHA1 value and paste it into your Firebase console. Be careful, the above will work for the debug environment, if you want to set up the release fingerprint you will have to create a keystore, check out this post to see

I am trying to implement FingerPrint Scanner in my app. I followed below tutorial: http://www.techotopia.com/index.php/An_Android_Fingerprint_Authentication_Tutorial In Samsung Note 4, FingerPrintManager's isHardwareDetected() is returned as false even though I successfully registered two fingerprints from Settings. Does anyone of you know what might be the reason? Thanks. I'm afraid the Note 4 doesn't support the Fingerprint API (just the Samsung Fingerprint). You should try your code with another device if possible. The issue is with the implementation of the Fingerprint scanner in some old