问题描述:

I would like to know if there is a way for me to perform encryption of a file (not the data, that is possible).. say an entire sqlite db, at the file level.. in Android and in iOS.

Well, the intent is to decrypt the entire db file when the app is launched and encrypt it when the app goes to background (similar to the device lock/passcode, but just for the resources of the app)

PS: I'm not looking for commercial tools.

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