What's the < $80MM way to break RSA-1024? $80MM of GPUs?
If its just a matter of that amount of money, then the NSA has almost assuredly already broken it, no?
If its just a matter of that amount of money, then the NSA has almost assuredly already broken it, no?
I'm fond of saying that the thing that takes out RSA-2048 is likely to take out RSA altogether, so, over the medium term, look to Elliptic Curve instead of RSA. New systems should be designed with ECC instead of classical IFP/DLP crypto.
Depending on how Moore's law progresses and our understanding of the Universe, you may never need to change (ignoring all other possible ways your key can be acquired).