Even if Moore's Law holds up that long, Second Law of Thermodynamics says you can't brute-force 256-bit keys[1]. However, it's entirely possible (though unlike

Even if Moore's Law holds up that long, Second Law of Thermodynamics says you can't brute-force 256-bit keys[1]. However, it's entirely possible (though unlikely) that actual, significant progress will be made either in DLP or in attacking AES/RC4 -- at which case, yeah, that data is as good as clear. [1]https://www.schneier.com/blog/archives/2009/09/the_doghouse_cr.html https://www.schneier.com/blog/archives/2009/09/the_doghouse_...