Prevent screenshots while showing OTP codes.

monich / harbour-foilauth

Secure OTP (One-Time Password) generator for Sailfish OS

https://openrepos.net/content/slava/foil-auth

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Prevent screenshots while showing OTP codes. #14

Closed ehdis closed 3 years ago

ehdis commented 4 years ago

Hi, I wonder if SFOS provides a feature to prevent making a screenshot while a applications is open.

The problem is generic and must be supported by the UI layer (IPC/DBUS layer?).

The Android OS seems to provide FLAG_SECURE. Example of the problem: https://github.com/google/google-authenticator-android/issues/50

So, to protect the auth code. Does SFOS has such flag? Could this be integrated into foilauth? Any comments on this would be great! Thx.

monich commented 3 years ago

AFAICT there's no such option. However, when a screenshot is taken, the system these days always shows a popup to alert the user that something is going on.