Talk:KG-84

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When was this first put into service? Is it obsolete? (it looks like it is, judging from the pictures) As of when? What crypto system did it use? linas 16:18, 16 Apr 2005 (UTC)
 * If nobody here knows, you might consider posting a query to the "cryptocollectors" group on Yahoo!: . However, it's quite unlikely that the details of the algorithms used in the device are publically known (or will be publically known for a few decades still...). &mdash; Matt Crypto 23:12, 16 Apr 2005 (UTC)
 * According to the Navy Infosec page they date back at least to 1986 and are no longer in production. It would seem they are still in use with legacy systems. At least one newer device, HAYFIELD, supports KG-84. . The jproc site  says it could be used with a variety of fill devices which suggests it does not use the newer, longer 128-bit keys. Compare with the KG-40A entry at the Navy site. --agr 11:59, 18 Apr 2005 (UTC)
 * Regarding whether it's still in use, it is. It's still a staple of COMSEC, at least in the Navy. --JimDanger 16:36, 9 September 2005 (UTC)