10 Sep
2013
10 Sep
'13
4:55 p.m.
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 <eugen@leitl.org> 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.