hey martin, On Thu, Mar 13, 2003 at 11:43:54PM +0100, martin f krafft wrote: > 1. is there already a package that enables this?
not that i know of.
> 2. is there a way to inject bytes into the entropy pool of the
> linux kernel?
yeah, at least as a module. don't know about from userland. basically
you declare a device as being able to contribute to the random entropy
pool, and give a means for doing so (i don't recall if you have to actually
patch the kernel or not, i can look into this tomorrow when i have my
hands on a linux kernel book)
> 3. how can i read the data from the microphone? it's being
> amplified by my soundcard, but cat'ing /dev/dsp gives nothing
> really (well, the same byte repeatadly).
you can read from it with rec (in the sox package). i used it a couple
days ago to record audio from a cassette being pumped into the mic jack.
the trouble is, i don't know how to read from it and have it not come out
the speakers (i turned themic up, and the master volume down when recording).
then again, you hardly need the mic on at all for this, because if you're
talking about what i think you're talking about, you get your random entropy
from normalizing the amplified white noise, right?
sean
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