Firewall Wizards mailing list archives
Re: NSA coughs up secret TEMPEST specs ... posted on Cryptome
From: solaar () hushmail com
Date: Thu, 11 Jan 2001 10:31:49 -0500 (PST)
Hi Michael, I'm sorry you felt the subject header was a tease and that the information on Cryptome wasn't what you expected. I'm sure that if the Tempest tech specs are ever released Cryptomr will be the first to post them. As for the headline, I was relaying an article from the Register and as such just fowarding it on, I must admit I've seen this before on list, but from now on I'll make it much more precise. Also, I am in no way, shape or form a part of Cryptome, so please don't refer to it as my site. As for my name, I usually do sign it, this morning I forgot. Mea culpa ... solaar (aka elyn) At Thu, 11 Jan 2001 11:22:20 -0600, "Michael Sorbera" <msorbera () rbfcu org> wrote:
Solaar, I commend your efforts to obtain and post information like this on the web. My one suggestion is that you not play the headline game, but be truthful about what is really on the document. Your write-up here lead me to believe that there is actually some real *meat* about how to protect/keep our equip emanations quiet. Once I read the actual referenced document on your site (http://cryptome.org/nstissi-7000.htm), I found that not to be true. The -7000.htm document might seem a little juicy to the untrained eye, but is nothing more than the document saying what measures would be taken where and when. It doesn't say how to do them. No one will now know how to actually do something to make their computer emanations less from reading the article, and that's what you lead us to believe by your narrative below. Bottom line, when you post stuff on this newsgroup, be factual, keep the headline garbage for the tabloids, and we all also sign our names to what we post. Later, Michael Sorbera Ex. TEMPEST inspector "In the land of the clueless, he who has half a clue is King!" and, to quote Sid Ismail, "Remember, amateurs built the Ark, professionals built the Titanic!" ----- Original Message ----- From: <solaar () hushmail com> To: <firewall-wizards () nfr com> Sent: Thursday, January 11, 2001 6:46 AM Subject: [fw-wiz] NSA coughs up secret TEMPEST specs ... posted on CryptomeNSA coughs up secret TEMPEST specs http://www.theregister.co.uk/content/4/15743.html The first of several documents related to the US government's TEMPESTprogramme,obtained by Cryptome.org's John Young under a Freedom of InformationAct(FOIA) request, have been posted on his Web site. His original requestwasdenied, but the persistent Young sought an appeal of that decision,whichwas recently granted in his favour. No one is quite sure what TEMPEST stands for (some say it's an acronymfor:Telecommunications Electronics Material Protected From Emanating Spurious Transmissions". Others say it is a nothing more than a code word),but whatit means is quite simple: electromagnetic and acoustic signals whichcanbe remotely detected and interpreted by a spy. We live in a veritable ocean of electromagnetic radiation, producedby everygizmo we use at home and at work. They all produce signals; and believe it or not, our input to the devices, and their output, create modulations which can be 'read'. The video signals leaking from your monitor change as you type usinga texteditor or word processor. It is (just barely) possible to capturethe signalsand correlate these changes with the actual text, enabling a spy toreadover your shoulder, so to speak. Practically speaking, reading the signals from a person's monitoris nolonger feasible, as they are now well shielded due to health paranoia.Butthen, modems are a notoriously loud class of item, from which the'noise'can easily be overheard and reconstructed. So are speaker phones,intercoms,outdated CRT monitors, much R&D equipment, you name it. They're allloudenough to be monitored without the physical implantation of any bugging device. Electrical wiring and telephone lines can transmit such signals byconduction;walls can vibrate subtly, as can pipes, beams, ducts, and the like.Theonly fix is to silence the equipment, or to actively distort its signal emanations. The NSA's concern, obviously, is any government equipment which process national security information in plain text. Hence its TEMPEST programme, which explains how to shield equipment and buildings against suchexploitation.And now, thanks to Young, we will all soon be able to figure out howtomake our electronic equipment as quiet as the government's. This couldbequite useful to academic and corporate researchers, whose activitiesareof sufficient value to make them targets of TEMPEST-style exploitation. It will also offer great comfort to the many paranoid boneheads whoseegosdispose them to imagine that their deluded rants are of interest tonationalsecurity operators. Many a blissful hour may now be spent pullingdown wallsand ceilings and ripping the guts out of suspect computers, televisions, telephones, stereos, microwave ovens, clocks and radios. Hey, if it keeps them off the streets, we're all for it.
Current thread:
- NSA coughs up secret TEMPEST specs ... posted on Cryptome solaar (Jan 11)
- Re: NSA coughs up secret TEMPEST specs ... posted on Cryptome Michael Sorbera (Jan 12)
- Re: NSA coughs up secret TEMPEST specs ... posted on Cryptome Talisker (Jan 12)
- <Possible follow-ups>
- Re: NSA coughs up secret TEMPEST specs ... posted on Cryptome solaar (Jan 12)
- Message not available
- Re: NSA coughs up secret TEMPEST specs ... posted on Cryptome John Young (Jan 12)
- Re: NSA coughs up secret TEMPEST specs ... posted on Cryptome Webmaster (Jan 18)
- Message not available