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For every single possibility to do something »
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ronpin
Imagine Reality

join:2002-12-06
Nirvana
·AT&T Southwest

reply to Fraoch
Re: Anonymously Track a PC Anywhere on Net

From the cited PDF paper...
...and we show how one might use a Fourier transform on packet arrival times to infer a device’s clock skew.
...

They almost had me believing it. Packet arrival times have random influences that no "Fourier transform" could account for. This is bullshit -- the paper is a fraud -- but I"ll keep reading it just to make sure. Besides, I'm pretty sure that TCP does not waste 32 bits on a time stamp unless there is a real-time/ordering requirement (but that could have changed in the last 5 years since I dealt with it). ICMP request are mentioned -- but don't most router firewalls block those anyway?
--
Lord protect me from your followers
to forum · permalink · · 2005-03-04 14:18:09 · Reply to this


teambnet
Team B Group
Premium
join:2003-05-06
Chicago, IL

 I agree: total BS. It would be impossible for a single deployed solution to parse traffic from a constantly evolving number of arrangements behind customers' public interfaces- especially if LAN side hacks appeared that were designed to overwhelm and not just obscure.
to forum · permalink · · 2005-03-04 15:41:50 · Reply to this

tquade

join:2000-10-14
Regina, SK		 Concur, although, it could be done with a laplace transform, a bit of convolution and a sprinkling of negative phlogiston.

Ted
to forum · permalink · · 2005-03-04 16:11:27 · Reply to this


Shamayim
I already have a Messiah.
Premium
join:2002-09-23		 It's crackers to slip a rozzer the dropsy in snide.

(I don't know what the hell I'm talking about either.)
--
"tick...tick...tick..." »www.jtf.org/
to forum · permalink · · 2005-03-04 18:30:41 · Reply to this

jaxjaguar

join:2001-05-29
Northridge, CA

reply to ronpin
On the BS bandwagon myself. I'm no TCP protocol expert, but doesn't a NAT router change the time stamp when it NAT's the packet? And if it currently doesn't, I'm sure it's just a simple firmware change to add that feature and make the ISP's efforts worthless.

So there's nothing to worry about here.
to forum · permalink · · 2005-03-08 03:34:46 · Reply to this
Forums » Anonymously Track a PC Anywhere on NetFor every single possibility to do something »

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