>They show that assuming some adversary can read Threema messages would entail that the Gap-Diffie-Hellman problem can be solved in polynomial time. Since this is something no efficient adversary is believed to be able to do, no adversary can read Threema messages. Hence, Ibex provides provable security, and confidentiality is guaranteed.<p>The whole point of the movie Sneakers was to remind the world that if someone does solve P = NP Hard problem they wouldn't tell anyone about it for the exact reason Threema is promoting it's secure methods. Not that anyone has solved the problem, but who really knows.