[Cryptography] "DarkHotel" APT routinely breaking RSA512

[Jon Callas]

> Factoring RSA 512 is well within earthy resources as of now.
> Probably modest botnet (for sieving) + good machines for linear
> algebra will factor RSA 512 in moderate time.
> 
> The interesting question is:  did they some crypto breakthrough?
> 
> btw, RSA cancelled their monetary challenges even for >512...

One can factor RSA 512 with less than earthly resources. One friend of mine back in 2009 was factoring RSA 512 with a single tower machine in about two weeks. He upgraded the machine in 2011 and could do it in about ten days.

	Jon