Sound card as a random number source ??

[paul at fatmans.demon.co.uk]

> And what if I will use FM receiver, tuned on some channel where is the noise.
> If the potentional attacker don't know the what channel was tuned, he is not
> able to reproduce this IMHO. Of course, maybe it is possible to record the whole
> spectrum to tapes, but I think that the noise will change when recorded and
> played back from tape.


It might possibly be random enough, especially if you use a tape 
recorder of a reasonably poor quality, thus inducing wow and flutter 
noise to the recording before it is sampled. anyone else care to 
comment?

 

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