entropy

[Roberto Ragusa]

Luca wrote:
> Hi all,
>  if I simply write to /dev/random, will that increase the entropy of my
> system? (I'm assuming that the data I'm writing are random and that
> somehow I got them).

Wikipedia says so.

My tests say no.

In particular this brutal approach does not increase the entropy
  cat /dev/urandom >/dev/random
(it is stupid to do that, I know, but it's just a test)

You could investigate on how rngd works.

-- 
   Roberto Ragusa    mail at robertoragusa.it