glass%mica.Berkeley.EDU@ucbvax.berkeley.edu (10/24/89)
I've been asked to write an essay on the Tempest specification -- a document which describes ways to make computer systems less susceptible to snooping by listening to their radiated electric and magnetic fields. I know that Sun and Zenith make computers that conform to Tempest, and am in the process of contacting these companies; however, I need more general info on the sorts of things a manufacturer must do to meet the spec -- and, if possible, a copy of the spec itself. If you have pointers to information on this subject, please send e-mail. Any and all suggestions of sources would be MUCH appreciated.
wolfgang@bbn.com (Wolfgang Rupprecht) (11/04/89)
>>I've been asked to write an essay on the Tempest specification ... >>[need] info on the sorts of things a manufacturer must do to meet the spec -- >>and, if possible, a copy of the spec itself. >Unless the situation has changed of late, the Tempest specification itself >is classified. Unless you have a security clearance and need to know, >nobody can tell you anything very specific. Yes, this is stupid. A good unclassified source of info is "Compliance Engineering" a publication by Dash, Straus + Goodhue, 629 Mass Ave., Boxborough MA. They are an FCC/Tempest advice house, and publish an annual "how-to" guide. The guide is wonderful reading, giving many amazing numbers. For example, in the '89 issue page 338 starts the article which gives the typical E vs. time and I vs. time curves for nuke bursts (50kv/m in a 5-10 nanosecond pulse!!!). Basically you can kiss most of your non-shielded electronic equipment goodby if this ever happens. Wolfgang Rupprecht ARPA: wolfgang@mgm.mit.edu (IP 18.82.0.114) TEL: (703) 768-2640 UUCP: mit-eddie!mgm.mit.edu!wolfgang