Alexey Dokuchaev wrote this message on Sat, Jul 25, 2015 at 14:36 +0000:
> On Fri, Jul 24, 2015 at 07:59:35AM +0100, Mark R V Murray wrote:
> > [...]
> > > Heck, piping in mic data to /dev/random is a good way to seed the
> > > rng on many machines.
> >
> > Well, sure, but what if you don't have microphone? I want lots
> > of choices, in anticipation of only a subset being usable.
>
> I like the microphone idea. Not just it adds another hard-to-mess-with
> (?) entropy source, it can also be a nice "reference" example for people
> wanting to write their own sources and plug them into the RNG framework.
Shouldn't be done in kernel, just do it from userland, by adding the
following to cron:
3 * * * * root sleep $(jot -r 1 120 1); dd
if=/dev/dsp bs=512 count=5 2>/dev/null | sha512 > /dev/random
--
John-Mark Gurney Voice: +1 415 225 5579
"All that I will do, has been done, All that I have, has not."
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