David Honig writes:
> Even if I had the same hardware, perhaps the tolerances on my ADCs are
> different from yours.
>
> And illumination levels will affect certain kinds of noise.
Sure, but the entropy generation rate will be in any case higher than
stuff coming from /dev/dsp
> The point: Measure it.
>
> Use Shannon's entropy formula, for instance.
I'm not very well versed in such matters, and pressed for time in my
day/night job.
> >I wouldn't mind any pointers to sources extracting, say, LSB from
> >grabbed frames.
>
> Distill (irreversibly compress, e.g., by xor'ing several words together)
> your data. Measure again; distill again until 1 bit/baud. Hash before use.
I was looking for sources performing such steps. And I wouldn't want
to crypto-hash lest the raw entropy gets debased by hidden algorithmic
order.
> Any OTP tool should facilitate or automate these steps.
