The problem with us ex-TEMPEST engineers is that we were sworn to secrecy, and the Department of Defense made sure we would not talk by going around, scaring the daylights out of our neighbors by knocking on their doors, flashing a badge, and asking them personal questions about us when we were getting our clearances.
Beyond saying that TEMPEST was the control of compromising emanations, pretty much everything else in NACSIM 5100 was classified. Best Regards, Don Gies, N.C.E Senior Product Compliance Engineer Alcatel-Lucent Murray Hill, NJ 07974-0636 USA ________________________________ From: Bill Owsley [mailto:[email protected]] Sent: Monday, July 13, 2009 11:48 PM To: [email protected] Subject: Re: FW: WHAT GOES AROUND COMES AROUND Well... TEMPEST as I heard of it, means only intelligible information (none to be found). The device can interfere such that nothing else works, but as long as nothing intelligible can be found in that noise, then it's TEMPEST. The TEMPEST guys can set me straight on this. As for ITE products, I have had a few that were great at self-detecting. The EMI noise was such that the audio circuits picked it up and sent it to the speakers for our listening enjoyment. We got to where the we could recognise by the audio signiture just which part was the problem. - Bill Indecision may or may not be the problem. --- On Mon, 7/13/09, Cortland Richmond <[email protected]> wrote: From: Cortland Richmond <[email protected]> Subject: RE: FW: WHAT GOES AROUND COMES AROUND To: [email protected] Date: Monday, July 13, 2009, 8:54 PM In a company not really far away and only years ago, I was evaluating a computer with a (then new) CD drive. I discovered there was no bypassing on the headset line ("What for?. it's only audio!") and was able to show our Board -- then touring the EMI lab -- that we could hear on the spectrum analyzer's speaker the music being played. IIRC,we shipped that model with plastic rivets glued into the headphone jacks. TEMPEST techniques are merely physics. A lot of folks have worked in the field, but, true to the oath of secrecy, remain close-mouthed about what can be done, has been done -- and might be done. Some day an irate Congressman will explode: "You mean you knew FIFTY YEARS AGO and didn't TELL us?" Yup. Cortland Richmond KA5S GE Aviation Words and opinions my own, not my employer's ----- Original Message ----- From: Price, Edward <http://us.mc396. ail.yahoo.com/mc/[email protected]> To: [email protected] <http://us.mc39 .mail.yahoo.com/mc/[email protected]> Sent: 7/13/2009 6:26:24 PM Subject: FW: WHAT GOES AROUND COMES AROUND From: Price, Edward Sent: Monday, July 13, 2009 10:21 AM To: [email protected] Subject: RE: WHAT GOES AROUND COMES AROUND Bill: Same idea, but a different vulnerability. The prof was Wim Van Eck, and he demonstrated retrieving video images from monitor radiation circa 1985. Again, this was common knowledge among security guys, but he introduced the phenomenon to the public. Ed Price [email protected] WB6WSN NARTE Certified EMC Engineer Electromagnetic Compatibility Lab Cubic Defense Applications San Diego, CA USA 858-505-2780 Military & Avionics EMC Is Our Specialty ________________________________ From: [email protected] [mailto:[email protected]] On Behalf Of Bill Owsley Sent: Monday, July 13, 2009 9:40 AM To: [email protected]; Derek Walton Subject: Re: WHAT GOES AROUND COMES AROUND Around 1980 a guest professor demonstrated that technique using radiated emissions. The receiving equipment fit into a large briefcase. - Bill Indecision may or may not be the problem. --- On Mon, 7/13/09, Derek Walton <[email protected]> wrote: From: Derek Walton <[email protected]> Subject: WHAT GOES AROUND COMES AROUND To: "[email protected]" <[email protected]> List-Post: [email protected] List-Post: [email protected] List-Post: [email protected] Date: Monday, July 13, 2009, 12:30 PM http://news.bbc.co.uk/2/hi/technology/8147534.stm - ---------------------------------------------------------------- This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to <[email protected] <http://us.mc396.mai .yahoo.com/mc/[email protected]> > All emc-pstc postings are archived and searchable on the web at http://www.ieeecommunities.org/emc-pstc Graphics (in well-used formats), large files, etc. can be posted to that URL. 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