[net.crypt] Nedd info on Ethernet Security

spaf@gatech.UUCP (08/25/83)

Georgia Tech is moving towards the installation of a campus-wide Net/One
network to connect our various terminals and computers.  Due to the number
of inquisitive, inventive, intelligent, adept students that Georgia Tech
has enrolled, we are all a bit concerned about security issues.  Specifically,
we are worried about interception and forging of data packets, and with
the possible methods of preventing physical interference with the
operation of the network.

Has anybody out there had experience with a large-scale Ethernet setup
in a potentially insecure environment?  Any tips, pointers, papers or
suggestions about how to protect our system?  We're interested in
anything that would give us some more background or ideas -- including
information about hardware encryption, physical security, software
checking, etc.

The environment will eventually consist of 10-30 computer systems, including
a Cyber 830 and Cyber 850, Vaxen, IBM 4341's, Primes, IBM Series I's,
an HP 3000, an HP 1000, a Symbolics machine, several Perq's, and heaven
knows what else.  We will also have a large number of IBM PC's (and
similar micros) hooked into the network, as well as numerous phone lines.
The network will be 10Mb, standard Net/One protocol.

Please mail responses directly to me.  If there is enough interest
I will be glad to summarize. I will not summarize to the net any information
that might lead to someone breaking security on a system.  Thanks in
advance.

-- 
The soapbox of Gene Spafford
CSNet:	Spaf @ GATech		ARPA:	Spaf.GATech @ UDel-Relay
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