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1993-11-08 - Re: tapping hardware? (was re: Mark Abene (Phiber Optik) sentenced)

Header Data

From: Timothy Newsham <newsham@wiliki.eng.hawaii.edu>
To: kovar@nda.com (David Kovar)
Message Hash: aaf49047cd60c2dc5628d60e1771140c01a9cfb1ebf35299728aa544b911e990
Message ID: <9311080705.AA15339@toad.com>
Reply To: <199311080426.XAA29294@nda.nda.com>
UTC Datetime: 1993-11-08 07:08:17 UTC
Raw Date: Sun, 7 Nov 93 23:08:17 PST

Raw message

From: Timothy Newsham <newsham@wiliki.eng.hawaii.edu>
Date: Sun, 7 Nov 93 23:08:17 PST
To: kovar@nda.com (David Kovar)
Subject: Re: tapping hardware? (was re: Mark Abene (Phiber Optik) sentenced)
In-Reply-To: <199311080426.XAA29294@nda.nda.com>
Message-ID: <9311080705.AA15339@toad.com>
MIME-Version: 1.0
Content-Type: text/plain


> 
>   I'd just copy everything to tape as I'd been doing for years. You don't
> need anything new to tap the phone line to pick up the data. After that,
> you just need to figure out the baud rate, parity, and data compression
> (which could be done by trial and error pretty quickly) and then just
> play the tape into a modem that was set up correctly. 
> 
>   Unless I'm missing something, it seems pretty simple.

I have heard that tapping high speed modems can be a little tricky
because of the adaptive filtering done.  The modems both have
adaptive filters that adjust to the line as they see it.  If you
are tapping at some other point the filtering will not be optimimal
for your case.  I believe these filters take care of smearing and
echos and things of that nature.

Maybe someone in the know can elaborate and clear up all the
bad data I probably just spewed :)   

Phil?

> -David

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