3 ms·
v2 of this will require an Android/iOS app which will make use of the platforms secure storage abilities for the key. On non-rooted devices, those are pretty m
by londons_explore 2y ago
v2 of this will require an Android/iOS app which will make use of the platforms secure storage abilities for the key.
On non-rooted devices, those are pretty much impervious to the user trying to inspect their contents.
- Aachen 2y agoAnd this is why those companies love DRM'd (non-rooted) devices and try to detect when you broke this form of DRM: you can't get at your data, not even to make a backup of it; they're in full control. Also for security (can't grant root to malware if you don't have the permission to grant that), but also for everything else
- dmurray 2y agoYou could extract the barcode at all times in the future by setting the system clock (you can do this on non-rooted phones, and keep it that way at least if you do it in airplane mode). The Android docs mention a "secure timer" in the hardware security module, but I'm not sure that it can be used to prevent this. https://developer.android.com/reference/android/security/keystore/KeyGenParameterSpec.html https://developer.android.com/reference/android/security/key...