bogus random entropy sources
Posted Oct 5, 2010 15:51 UTC (Tue) by jzbiciak
(✭ supporter ✭
In reply to: bogus random entropy sources
Parent article: Solid-state storage devices and the block layer
I don't understand why more processors don't include a proper hardware random number generator. It's a classic case of something that is significantly easier to do in hardware, I'd think.
I mean, sure, you could try to derive a few bits of entropy here, an few bits there from what is otherwise a deterministic system. It's maddeningly frustrating, though, and you have to apply new thought and new techniques every time your system assumptions change. Your case is just such a case, and it sounds like you just punted to a dedicated hardware solution.
Modern CPUs have accelerators for all sorts of things as standard equipment. Why not random numbers? We spend countless millions of transistors on ever larger caches and datapaths. Surely they could spare a few for a really high quality true random number generator.
to post comments)