encrypt the database, what can be done about this?
You can encrypt each peace of data before putting it to table. Another thing to consider is where to store cypher key
thanks, pretty cool question though, Android keystore system, I suppose it should do the trick well?
Can you recommend a good QR/BAR code scanner library?
Quite possibly. Why do you ask?
I'm asking because some libraries i found on GitHub are no longer supported by the developers or they got issues/bugs. And i don't know if Google official has any support Library for such things
ML Kit is official and super powerful
What you could do, is using username and password as a seed to generate a new encryption key
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