> It's extremely difficult to implement cryptography correctly
The smartest CS undergrad at any vaguely reputable school could probably do this correctly. It shouldn't be a problem at all for one of the biggest companies in America if they actually care.
> then cryptography != security != privacy
Which is a more interesting point and assuming the left side was taken care of we could rapidly approach the right side by doing things like providing more granular permissions to applications.
> The smartest CS undergrad at any vaguely reputable school could probably do this correctly. It shouldn't be a problem at all for one of the biggest companies in America if they actually care.
You are very wrong about this.
> assuming the left side was taken care of we could rapidly approach the right side by doing things like providing more granular permissions to applications
It's actually an unsolved problem. Granular permissions have been tried before.
The smartest CS undergrad at any vaguely reputable school could probably do this correctly. It shouldn't be a problem at all for one of the biggest companies in America if they actually care.
> then cryptography != security != privacy
Which is a more interesting point and assuming the left side was taken care of we could rapidly approach the right side by doing things like providing more granular permissions to applications.