[GreenKeys] Help in Understanding Navy Classified Message System 1965-1975

[Steve Garrison]

Thanks Tom!  I was away from my computer when I sent my post and didn’t have the link readily available.

 

Any one interested in “playing” crypto and exchanging emails encrypted with the KL-7?  Can’t do it over the air using amateur radio, even just playing around, but it might be fun to do via email.

 

Actually you can do it via amateur radio if you also send the “keys” need to decrypt the message in the clear before sending the encrypted message, but what fun is that.

 

It will give you a better understanding of just how difficult this task was before the age of computers.  Especially if you do all the typing required instead of just doing a lot of copy and paste.

 

Steve G./N4TTY

 

From: Thomas Tillson <til128 at aol.com> 
Sent: Thursday, April 26, 2018 6:47 AM
To: steve.n4tty at gmail.com; navy.radio at gmail.com
Cc: greenkeys at mailman.qth.net
Subject: Re: [GreenKeys] Help in Understanding Navy Classified Message System 1965-1975

 

FYI:

 

http://users.telenet.be/d.rijmenants/en/kl-7sim.htm

 

TT

 

 

In a message dated 4/26/2018 5:47:03 AM Eastern Standard Time, steve.n4tty at gmail.com <mailto:steve.n4tty at gmail.com>  writes: 

 

Did the Navy use the KL-7 to encrypt traffic?  The AF used them and since it was mechanical as well as electronic it was maintained by TTY repair.

 

There is a good computer simulation of the KL-7 available online.

Steve G./N4TTY

Sent from my iPhone

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