Android Question need a library for secure and validate an apk from a own server

[ocalle]

Hi, I was reading this topic on Android Developer, exist some solution to secure my app? , ill not use google play, have my own server for registration and download the apk. Is intended for a closed market

Need validate the apk, revoke a license if the customer no pay and so on

I was read this about Attestation Api but its playstore related

https://developer.android.com/training/safetynet/


Well any idea, aproach, suggestion or info are wellcomed

Thanks!

 

[Erel]

Does your app depend on the server to function or the server is only used for verification?

 

[ocalle]

The idea is to validate the user, example cell phone number, gmail, imei etc, so that every so often if someone does not pay their license can be revoked, i use sqlite with tables locally with the possibility of exporting to csv, in the future i will use a mysql server so that the user can access from his pc.

 

[Erel]

Check FirebaseAuth: https://www.b4x.com/android/forum/threads/firebaseauth-authenticate-your-users.67875/#content

You can then send the token to your server and verify it: https://www.b4x.com/android/forum/t...rification-for-signed-in-users.68672/#content