Maybe. This is how backup services like Carbonite work. I can create a key that they don't have, and if I lose it, I'm locked out, bye bye data. Otherwise, w

Maybe. This is how backup services like Carbonite work. I can create a key that they don't have, and if I lose it, I'm locked out, bye bye data. Otherwise, where there's a key, there's a master key, and we're right back where we started.