7 Jan
2012
7 Jan
'12
11:18 p.m.
On 01/07/2012 12:25 AM, Brent Hilpert wrote:
For those who might be following this peripherally,
the cryptography key
was the random thermal noise from mercury-vapor tubes, digitised and
recorded using FSK onto phonograph records. These key records were used
as a one-time pad and had to be synchronised to a few mS at the two ends
of the communication link. The whole system was a fascinating amalgam of
theory and then-state-of-the-art techniques.
[gape]
Ok, that is AWESOME. I've done some work with entropy sources
(primarily P-N junction noise) to feed random number generators, but
this is a technique I've never heard of. My mind is blown.
-Dave
--
Dave McGuire
New Kensington, PA