KYU-5, KG-84, KY-54 encryption devices

[David Honig]

At 09:19 AM 2/28/01 -0600, Aimee Farr wrote:
>What are they?

.mil names for en/decrypting boxes; the KG is a key generator IIRC.  The
encryptors
often use classified algorithms and use hardware 'dongles' (bit carriers)
to key them.  




.......
Unbeknown to the latter, Marks had already cracked General de Gaulle's
private cypher 
in a spare moment on the lavatory.