[695] in cryptography@c2.net mail archive
Re: Random numbers from the '60's...
daemon@ATHENA.MIT.EDU (Phil Karn)
Mon May 5 23:27:29 1997
Date: Mon, 5 May 1997 19:16:34 -0700 (PDT)
From: Phil Karn <karn@qualcomm.com>
To: pgut001@cs.auckland.ac.nz
CC: cryptography@c2.net
In-reply-to: <86287842606742@cs26.cs.auckland.ac.nz>
(pgut001@cs.auckland.ac.nz)
>I looked at this some time ago for use with SFS/cryptlib (or at least I got a
>friend of mine to do it for me since I don't have a SB), with no mike
>connected all you get is the LSB's toggling in a fairly non-random manner,
Was this a 8-bit or a 16-bit soundblaster?
I should have said at the start that you need a 16-bit soundblaster for
this scheme to work. 8-bit A/Ds just don't have the dynamic range needed
to see the preamp noise.
Phil
