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sandtest
2005 Mar 07
2
New entropy source proposal.
Hi.
I've been playing a bit with "use sound card as an entropy source" idea.
This simple program does what I wanted:
http://people.freebsd.org/~pjd/misc/sndrand.tbz
The program is very simple, it should be run with two arguments:
% sndtest /dev/dspW 1048576 > rand.data
This command will generate 1MB of random data.
With my sound card:
pcm0: <Intel ICH3 (82801CA)> port 0xe100-0xe13f,0xe000-0xe0ff irq 11 at device 31.5 on pci0
pcm0: [GIANT-LOCKED]
pcm0: <Cirrus Logic CS4299 AC97 Codec>
It produce very good entropy. I...