Data security

[Marco Martin]

Hi all,

there is a thing that is still missing pretty much completely, and was part of 
the feature plan since the beginning...

it's an (admittely) pretty vague security model for the data stored on the 
device.

now, this can mean different things:
* security of the device itself against stealing: how much can be done about 
is kinda limited, apart some usual, as low level as possible things such as 
full disk encryption (and possibly some way to shut it down remotely). This is 
something that would add a real value compared to other mobile platforms 
around

* security model of the data even against the applications:  should be the 
nepomuk store doing some sort of authentication on who can access it and what 
data? this could be desiderable as well, not sure about the technical 
feasability tough, in part because all our stuff communicates with the easily 
eavesdroppable dbus (nepomuk, contour, activity manager), in part because 
whatever you can really sandbox an installed c++ app is a bit questionable.

probably at least some form of authentication for qml only stuff to the 
metadata model and the dataengines is desiderable *and* feasible tough.
maybe with a derivation of the remote plasmoid authorization?

Cheers,
Marco Martin