[Cryptography] RIP Claude Shannon

[Dave Horsfall]

On Tue, 23 Feb 2016, Jerry Leichter wrote:

> There were completely independent technologies to deal with voice and 
> with Morse code.  (I'm not sure what other modes of electronic 
> communication existed at the time. [...]

RTTY (Radio Teletype)?  'Twas 5-bit Baudot code (and is still being used 
by Amateur "ham" operators).

-- 
Dave Horsfall DTM (VK2KFU)  "Those who don't understand security will suffer."