Okay --- I'll iterate the algorithm a thousand times. Now I'm back to respectable strength. Besides, any selective "break glass" scheme is going to be vulnerab

Okay --- I'll iterate the algorithm a thousand times. Now I'm back to respectable strength. Besides, any selective "break glass" scheme is going to be vulnerable to arguments about the need for urgent access to prevent terror or something. Either the population has access to strong crypto or it doesn't --- and technological prohibition never actually works. You may be able to make it easy to crack phones used by the naive, but you can't stop determined people writing and running software.