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The following archive was created by hippie-mail 7.98617-22 on Fri Aug 21 1998 - 17:16:06 ADT
Douglas Dike (wmage@rahul.net)
Wed, 18 Mar 1998 21:27:18 -0800 (PST)
On Wed, 18 Mar 1998, William H. Geiger III wrote:
> Has anyone done any research on transformers and wether they block 100% of
> any data that may be leaked?
>
> While the risk of data leakage through the local power loop has been known
> for a long time it was commonly assumend that this data could not be
> intercepted once you were past the first transfomer.
>
> After reading about one of the power companies (the name excapes me right
> now) finding a way to do network communications over the power grid I
> started having second thoughts. Does anyone have any references on this?
> Are they using some type of bypass on the transformers or have they found
> a way to pass the data through them?
Well, just from my knowledge from my physics class of how transformers
work, I'd venture a geuss that transformers would provide little to no
obfuscation of the data that's been leaked onto the powergrid.
If I'm not mistaken, data on one side of transformer would be transmitted
to the other, only differing in amperage and voltage (as would be expected
when passing through a transformer). Of course reality may very well
conflict with my simple understanding of transformers, but I expect to a
limited degree.
-- "The society which scorns excellence in plumbing as a humble activity and tolerates shoddiness in philosophy because it is an exalted activity will have neither good plumbing nor good philosophy ... neither its pipes nor its theories will hold water."
The following archive was created by hippie-mail 7.98617-22 on Fri Aug 21 1998 - 17:16:06 ADT