I'm not too familiar with the math involved with the exchange of keys, I've read it over several times, but math isn't my strong point. My understanding is that smart people are hard at work to overcome the difficulty of factoring the shared secret.
So assuming that quantum processors overcome the current implementations and 'brute-factor' the keys involved, can the exchange be scaled up similarly to other forms of encryption?
Is there a way to scale up the effort of required to brute-factor the shared key so that not even a Quantum Computer could efficiently compute it, while still maintaining acceptable performance for the good-guys with consumer-grade non-quantum computers?
Sorry if this has already been asked, but like I said math isn't my strong point, I'm not even sure how to identify if its been asked.