[cryptography] [FORGED] Re: Kernel space vs userspace RNG
jaromil at dyne.org
Tue May 17 05:29:36 EDT 2016
On Tue, 17 May 2016, Peter Gutmann wrote:
> The Doctor <drwho at virtadpt.net> writes:
> >It took me an afternoon to write some Python to measure the times in between
> >particles hitting the tube, hash them, and cat them into /dev/urandom.
> A geiger counter is really a whiteboard-only source of entropy, it's a nice
> textbook example but not really practical for real-world use.
how about a lavalamp :^)
in a remote slashdot thread from 15yrs ago
"actually, I read about a group who was doing just that (in some old
issue of wired, I think). they used a bank of video cameras set up in
front of lava lamps (good for random input) then hashed the video
feeds into a string of nice random noise. "
back then I got a private email from someone at Sun confirming they
were using hasciicam on lavalamps and sharing read-only text dumps via
NFS. Not sure this was in Portland, but I'm quite sure this is the
dream of the 90's :^D
Denis Roio aka Jaromil http://Dyne.org think &do tank
CTO and co-founder free/open source developers
加密 6113 D89C A825 C5CE DD02 C872 73B3 5DA5 4ACB 7D10
More information about the cryptography