[117115] in Cypherpunks

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Re: Project: Hardening Crypto Against Big Brother's "BlackBag"

daemon@ATHENA.MIT.EDU (Sunder)
Thu Aug 26 17:49:43 1999

Message-ID: <37C5B36A.1809A59D@brainlink.com>
Date: Thu, 26 Aug 1999 17:36:42 -0400
From: Sunder <sunder@brainlink.com>
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To: Sean Roach <roach_s@mail.intplsrv.net>
CC: cypherpunks@Algebra.COM
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Reply-To: Sunder <sunder@brainlink.com>



Sean Roach wrote:

> Better.  Use thermite.  Since its only almuminum powder and rust, it
> shouldn't look like more than a large mass of metal, (of which the case has
> a lot of anyway.)

Here's another thought, build your case out of clear plastic filled with
thermite.  Say 1" thick gaps filled with the stuff, and possibly have the LCD
screen, and keyboard above a layer of the stuff.  The LCD will still leak lots
of RF, but at least the CPU RF won't.  (I recently took apart an IBM Thinkpad
keyboard, there are no chips inside, just plastic film with traces that short
out when you hit the keys.)  

Hmmm... If you want to get real gung ho, you could get a bunch of LED's and
use fiber optics to "see" keystrokes.  The fibers would go under the layer of
thermite and mate with phototransistors. Can't tempest sniff that keyboard.
:)  Still a lot of hw work to go through...

It'll look like an iMac (if you don't want that, use an opaque plastic),
provide for some tempesting, and save you lots of room.  You'll still need
something hot enough to start it up...  Not sure if you short out say a large
NiMH battery pack if that will do the trick, but you do want to avoid
conventional explosives as they'll be easily "sniffed."

So, anyone know how hot a pack of NiMH's get if shorted, and if that's
sufficient? :)  

And what company to throw plastic (no Jeff, I didn't spell it plastique you
scumball) plans to and have them make you a case? :)

And how much RF densely packed thermite blocks?  If this is an issue you could
buy that flectron cloth stuff and use it as part of the case, or thick copper
foil, etc...   Make it a real work of art. Heh... :)

IMHO, this can be used to take an off the shelf notebook and build it inside a
new case with these "extra" features...


Hi Gordon, are you reading this?  Of course you are.  Bad Fed. You should
never admit to spying on others.  What wanna throw me in jail for hypothetical
"what if" computer designs?  On what grounds you slimebag?  Oh, Yeah, "he's
planning to build a computer" will really stand up.  

Am I gonna build such a thing?  Fuck no.  But someone else will.  Ha!  But if
I do, I'd bet your spook buddies would snap'em up in a heartbeat, and make
that cypherpunk a millionaire.  Yup.  Wouldn't surprise me if they're already
using the same kind of shit we're thinking up here.

Hope you blow off your fingers picking one of these up... heh...   No you
brainless fuck, that's not a veiled threat.  That's a hope.  The treat is in
the mirror.  Look at the creature you see in it when you shave.


-- 
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they start making vacuum cleaners."


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