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generating noisy samples at a high rate with RTLSDR
On Tue, Sep 10, 2013 at 06:47:28PM +0200, Jens Christian Hillerup wrote:
> On Tue, Sep 10, 2013 at 6:15 PM, Eugen Leitl <[email protected]> wrote:
>
> > Just remembered another cheap option for generating a lot
> > of noisy samples: http://sdr.osmocom.org/trac/wiki/rtl-sd<http://sdr.osmocom.org/trac/wiki/rtl-sdr>
>
>
> Isn't RTLSDR only for *reading* signals?
That's exactly what you need, if you want to get entropy
from the real world. Wide-band white noise generator
circuits up to 300 MHz are very cheap and easy.
This gives you some 1.4 Msamples @ 8 bit. With a wideband
white noise source there will be several bits of entropy
in each sample, estimated.
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