Great Circle Associates Firewalls
(August 1995)
 

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Subject: Encripted ftp connections
From: Atkinson-K @ smtpgw . nctsw . navy . mil
Date: Thu, 10 Aug 1995 09:54:40 -0400
To: firewalls @ GreatCircle . com

Lyndon David <lyndond @
 sentinet .
 demon .
 co .
 uk> wrote:

>I have been tasked with setting up an ftp server to
>communicate with a handfull of business partners. We
>wish to have the ability for our partners to be able
>to send and retrieve files from our server. Due to the
>nature of the data the data must be encripted as it passes
>over the Internet and stong authentication must be used
>when they connect. 

>This is a commercial project and the data will cross
>International bounderies, for this reason I do not want
>to use encription technology such as pgp as some of the
>countries will have problems with this.

>Does anyone know of a hardware solution that can operate
>between one local machine and 5 or 6 remote machines?

The Message Security Protocol (don't recall the International Standard name 
for it) will provide the strong authentication and one to many requirements 
you have, but only for messages. In an international environment, you will 
have problems with just about any encryption capability you choose.

>If encription of the data before transmission is mandated
>what commercial encription can be used that will be
>acceptable across International boarders and can anyone
>think of a method where if someone forgot to encript the
>data before transmission this would be caught and the
>transfer stopped?

There are Guards that will be coming available that will prevent 
unencrypted information from leaving an enclave and passing over a Network.
------------------------------

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