batch mode lack of randomness FreeBSD
wk at gnupg.org
Tue Mar 21 15:52:19 CET 2006
On Thu, 16 Mar 2006 01:10:25 -0500 (EST), Stef Caunter said:
> I've started a child process that continually writes to a disk file during
> the --gen-key --batch job...
That won't help much. A better thing is
find /usr -type f | xargs cat >dev/null
> Is this just the way it is on FreeBSD (4.11-RELEASE)? There is plenty of
> randomness in /dev/urandom, and none in /dev/random...
There is no randomness (well, entropy) in /dev/urandom at all if you
read too much of it. Instead of blocking on low entropy as
/dev/random does, /dev/uranmdom simply falls back into a pseudo random
mode. Further, reading from /dev/urandom depletes the inetranl random
pool and thus a read on /dev/random will block untilo you stop using
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