From: SINCLAIR DOUGLAS N <sinclai@ecf.toronto.edu>
Date: Wed, 4 Oct 95 09:35:25 PDT
To: roy@cybrspc.mn.org
Subject: Re: About that simple hardware RNG
In-Reply-To: <951003.173054.7O1.rnr.w165w@cybrspc.mn.org>
Message-ID: <95Oct4.075144edt.1878@cannon.ecf.toronto.edu>
MIME-Version: 1.0
Content-Type: text/plain


> The idea:  noise from an avalanching diode is applied to the input of an
> 8 bit shift register.  The SR is clocked at some fairly high sampling
> rate.  The 8 bits are made available on the printer port.
The shift register and timer probably involves 2 microchips.  Why not just
use 8 avalanching diodes, one for each bit.  Infact, you can use 13 if you
use the other printer-port input lines.