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Re: files
by pmetzger＠shearson.com 17 Dec '92

17 Dec '92

> From: treason(a)gnu.ai.mit.edu > Of course half the problems with realistic discussions are aroused > by idiots flaming without checking their sources.... > > treason Gee, who's the fool claiming that its illegal to RF shield your computer... .pm

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INFO: TEMPEST companies
by yanek＠novavax.nova.edu 17 Dec '92

17 Dec '92

Lindgren RF Enclosures 400 Gigh Grove Blvd. Glendale Heights, IL 60139 Contact: Wayne Martin 708-307-7200 FAX: 708-307-7571 "LT" Series Shielding System is a complete line of modular enclosures, equipment cabinets and custom enclosures available in virtually all shielding materials. The system features exclusive Double Electrically Isolated construction for maximum attenuation. All enclosures are fully tested and guaranteed. Aplication assistance available. Secure Systems & Services Div. of The R/H Factor Corp. 13990 Goldmark Dr., Ste.401 Dallas, TX 75240 Contact: Ray Helsop 214-907-9288 FAX: 214-669-9160 TEMPEST Products, Systems & Services are for Military/Industrial firms concerned with threat of information security and protection by [sic] electronic eavesdroppoing; also commercial EMI/RFI, reduced emissions products. We provide TEMPEST service and support, data encryption, F.I.S.A. Facility Information Security Assessment Studies, site planning, installation design, facility upgrades, etc. International Paper Co. Longmeadow Rd. Tuxedo, NU 10987 Contact: Larry Fahy 914-577-7247 SAF'N SHIELDED (tm) International Paper provides a unique wallcovering that prevents electromagnetic interference (EMI), wireless electronic espionage, and other forms of electromagnetic eavesdropping. The new wallcovering, a composite structure that incorporates a nonwoven mat of metallic fibers, has been TEMPEST-tested by the U.S. government and can achieve attenuation levels over 100dB. The material, which eliminates the added costs of "hardening" or adding protective shielding to individual pieces of electronic equipment, is being used both in primary applications and to upgrade facilities to higher levels of protection. It also provides a way to plug EMI leaks quickly and effectively. Unlike woven or sheet metal, which typically require gutting entire rooms, this flexible, lightweight material goes up as quickly as wallpaper. No special tools are needed, and downtime is minimal. Transaction Security, Inc. 21 Industrial Ave. Upper Saddle River, NJ 07458 Contact: O. Mark Hastings 201-573-1150 Steel TEMPEST-type enclosures for any size computer hardware. -- Yanek Martinson mthvax.cs.miami.edu!safe0!yanek uunet!medexam!yanek this address preferred -->> yanek(a)novavax.nova.edu <<-- this address preferred Phone (305) 765-6300 daytime FAX: (305) 765-6708 1321 N 65 Way/Hollywood (305) 963-1931 evenings (305) 981-9812 Florida, 33024-5819

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files
by treason＠gnu.ai.mit.edu 17 Dec '92

17 Dec '92

Of course half the problems with realistic discussions are aroused by idiots flaming without checking their sources.... treason

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tempest file
by treason＠gnu.ai.mit.edu 16 Dec '92

16 Dec '92

I don't know what is in the file entirely, but it looked like the one I have read on the legality of using tempest shields and such. I have other files on the issue as well, I would like you guys to tell me whats you think, and if I should post the others as well. treason@gnu - You have free will, but you will go to hell if you use it!

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Re: tempest devices and use
by karn＠qualcomm.com 16 Dec '92

16 Dec '92

>It is illegal to use any device as a tempest shield, including lead, >tesla coils or any other materials that can possibly interfere with tempest >reception! You need a government license to use these, and then you must have >reason to have such a device(this is how banks can use such things.) Eh? The specific purpose of TEMPESTing a computer that handles classified information is to contain any incidental information- bearing electromagnetic emissions so they cannot be received at a distance. But shielding is not only a security issue, it is also highly desirable to minimize interference to users of the radio spectrum (e.g., broadcast TV sets and radios). Now the FCC Part 15 rules (which govern "incidental radiation devices" such as computers) are much less stringent than TEMPEST, but this is only an economic tradeoff because full TEMPEST-level shielding of a computer can be very expensive. In fact, many classified shops have instead built "screen rooms" (or entire screened buildings, such as those at the NSA) so they can use standard commercial-grade computer hardware. Anyone is free to add as much shielding to their computer equipment or their entire buildings as they want. There's absolutely nothing illegal about it; in fact it's highly commendable to do so. The FCC (and your neighbors) will thank you for it. Now if you wanted to "mask" your computer's RF emanations with some sort of RF noise source (such as a Tesla coil) that's another story. Most transmitters require licenses for the obvious reason that they can interfere with other users of the radio spectrum. But this has nothing to do with your right (or even duty) to shield your computers. Unfortunately the TEMPEST rules themselves are classified, so we really don't know how much shielding is necessary, or what one can pick up from an unshielded system, or exactly how you'd do it. Obviously this is an attempt to protect NSA's own SIGINT methods. But there is, to coin a phrase, "equal protection under the laws of physics". Star Warriors' claims notwithstanding, they're the same for everyone, black (classified) or white, and they're open for all to discover and apply on their own. Phil

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Re: tempest devices and use
by pmetzger＠shearson.com 16 Dec '92

16 Dec '92

> From: treason(a)gnu.ai.mit.edu > > For those who are interested in tempest devices and such... > > It is currently legal to create/buy and use tempest devices for any citizen > under any circumstances. It is also legal to sell such devices, with the > exception of selling to non US citizens and governments. This is the good > news. > > The bad news is: > > It is illegal to use any device as a tempest shield, including lead, > tesla coils or any other materials that can possibly interfere with tempest > reception! You need a government license to use these, and then you must have > reason to have such a device(this is how banks can use such things.) > > I have a few tempests, one with a range of about 200 yards using aricraft > vdo's. If anyone wants a file discussing the legal issues of the tempest, > please ask, and I'll forward it here. This particular bit of garbage is so malodorous that it can't be left unchallenged. There are no rules saying that you can't shield your computer equipment; in fact, there are FCC rules that say that you HAVE to shield it, though you aren't required to do as well as tempest specs, which, to my knowledge, are not even public knowledge. Put up or shut up, Mr. "Treason". Give us one lick of evidence that you know what you are talking about. Perry

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tempest devices and use
by treason＠gnu.ai.mit.edu 16 Dec '92

16 Dec '92

For those who are interested in tempest devices and such... It is currently legal to create/buy and use tempest devices for any citizen under any circumstances. It is also legal to sell such devices, with the exception of selling to non US citizens and governments. This is the good news. The bad news is: It is illegal to use any device as a tempest shield, including lead, tesla coils or any other materials that can possibly interfere with tempest reception! You need a government license to use these, and then you must have reason to have such a device(this is how banks can use such things.) I have a few tempests, one with a range of about 200 yards using aricraft vdo's. If anyone wants a file discussing the legal issues of the tempest, please ask, and I'll forward it here. treason@gnu

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remailers
by treason＠gnu.ai.mit.edu 16 Dec '92

16 Dec '92

I don't know if this message got through, but I'll repost it just in case... What I would like is a list of remailers with maybe a description of the fucntions(non-standard mail) like pgp abilities or whatever. A list of remailers would be good in itself. treason

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remailers
by treason＠gnu.ai.mit.edu 16 Dec '92

16 Dec '92

Does anyone have a ongoing list of remailers addresses and functions that they could send me? I haven't had time to compile a list myself, but would appreciate itt greatly if I could get one. Treason

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Inf0
by wendtj＠jplpost.Jpl.Nasa.Gov 16 Dec '92

16 Dec '92

Does anyone know of companies that will sell Tempest shielding to a private citizen, and if so; what regulations and licensing are required to own this equipment. Thanks in advance, JPW ----------------------------------------------------------- JPL: 03-90 - 12-31-92. Goldin + Peace + Politics = Layoff Anyone out there looking for an AA? -----------------------------------------------------------

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