From owner-freebsd-security Tue Sep 7 8:27:59 1999 Delivered-To: freebsd-security@freebsd.org Received: from bsdie.rwsystems.net (bsdie.rwsystems.net [209.197.223.2]) by hub.freebsd.org (Postfix) with ESMTP id C95C214C28 for ; Tue, 7 Sep 1999 08:27:53 -0700 (PDT) (envelope-from jwyatt@rwsystems.net) Received: from bsdie.rwsystems.net([209.197.223.2]) (1685 bytes) by bsdie.rwsystems.net via sendmail with P:esmtp/R:bind_hosts/T:inet_zone_bind_smtp (sender: ) id for ; Tue, 7 Sep 1999 10:21:58 -0500 (CDT) (Smail-3.2.0.106 1999-Mar-31 #1 built 1999-Aug-7) Date: Tue, 7 Sep 1999 10:21:50 -0500 (CDT) From: James Wyatt To: David Miner Cc: dmp@aracnet.com, "Rodney W. Grimes" , ck@adsu.bellsouth.com, bryan@valiant.cis.hcc.cc.il.us, freebsd-security@FreeBSD.ORG Subject: Re: Layer 2 ethernet encryption? In-Reply-To: Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-security@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org There are nice 10bT to fiber (fibre in the UK) converters in the BlackBox catalog (catalogue). You chould put these oh-so-close to the router or switch in the equipment space - maybe even braid the 10bT cables to confuse any listeners there. Then 10bF cards in the machines ensure no EMI emitted in the unsecure area. - Jy@ On Tue, 7 Sep 1999, David Miner wrote: > In regards to the other problem of EM from the UTP, have your uses given > thought to running the lines through shielded conduit. Are they running > TEMPEST tested boxes for the problem of radiation from the monitors? Is > each end in a shielded, grounded room? If they are that parinoid about a > sniffer from an authorized machine, they should be worried about the > radiation of unecrypted information after the data has been passed to the > destination machine. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-security" in the body of the message