[CW] How was message routing done?

[D.J.J. Ring, Jr.]

You made sure you did these after you had your coffee:
https://www.cryptomuseum.com/crypto/usa/kw7/img/301798/052/full.jpg

73

DR

On Tue, Apr 23, 2019 at 9:21 PM <n7dc at comcast.net> wrote:

> Interesting to see the list of cryptographic material seized.  The real
> thing that people do not understand is that NONE of this is as bad as it
> might seem.  The real secret of code/decode of messages with these units is
> the KEY MATERIAL.  At the time, those units were reset with new key
> material at least daily, and sometimes, every time they made contact with a
> new land station.  And, they could only have the same crypto settings, one
> time, and those taken from books issued to just two stations (the boat, and
> another ship or land station).  Early on, most equipment was hand loaded,
> meaning you might have to unplug, then replug each of some 50 or more
> cables, carefully following the crypto books.  I cant remember the exact
> numbers, but it was a situation of getting it right one time in millions.
> Some crypto gear could not be re-keyed in the same set, twice.  If it was,
> it failed to operate, just like if you set it wrong to start with.    Later
> on, there were one time cards, issued . You open a door, insert the key
> card, close the door, and test to see if you both did it right.  NO?  Then
> you opened the door, threw away the cards (in a classified trash box), and
> started over with a new card, on both ends. The card, by the way, would
> often be automatically cut into two pieces, as part of the insertions, so
> never usable again, after the first failure. Even before I left the
> service, and again, as a civilian.  They were all replaced, several times
> with new units.  No telling what they use now, but I would bet it is more
> than just a one chip situation.
>
>
> N7DC at ARRL.NET
> Ex WN5QMX,WA5UKR,ET2US,ET3USA,SV0WPP,VS6DD,N7DC/YV5/G5CTB
> QSL Bureau, DIRECT, LOTW Preferred, eQSL used but upload at a courtesy
> only, as do not use the system for awards.
>
> On April 23, 2019 at 8:58 PM "D.J.J. Ring, Jr." <n1ea at arrl.net> wrote:
>
> The home page is here:
>
> http://jproc.ca/
>
> He has some nice photos of PUEBLO in her new dock in North Korea.
> http://jproc.ca/pueblo/index.html
>
> 73
>
> DR
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