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[liberationtech] [tor-talk] Network diversity [was: Should I warn against Tor?]

Eugen Leitl eugen at
Thu Jul 11 05:00:35 PDT 2013

----- Forwarded message from coderman <coderman at> -----

Date: Wed, 10 Jul 2013 19:00:56 -0700
From: coderman <coderman at>
To: tor-talk at
Subject: Re: [tor-talk] Network diversity [was: Should I warn against Tor?]
Reply-To: tor-talk at

On Mon, Jul 8, 2013 at 11:24 AM, grarpamp <grarpamp at> wrote:
> ...
> And about a decade ago there was a researcher who compiled
> fiber right-of-way maps from public sources and wrote a paper
> discussing vulnerability of Internet structure to physical attack.
> The details were omitted due to 'security' ...

you're likely thinking of Sean Gorman's dissertation:

"Networks, complexity, and security: the role of public policy in
critical infrastructure protection"

> yet crowdrecreating/finding
> that work/paper would yield similar IX locations for discussion.

path diversity at the physical layer would be useful to consider, and
you could do this without the fine grained location and capacity
details that makes the above critical infrastructure vulnerabilities
less a concern.

detailed and specific plats/maps akin to what Sean aggregated and
analyzed get you unwelcome scrutiny ;)

> Big fiber junctions are often not in giant buildings with telecom
> logos on them.

c.f. cable landing sites in US:

see also:

and telegeography's submarine cable map:
tor-talk mailing list
tor-talk at

----- End forwarded message -----
Eugen* Leitl <a href="">leitl</a>
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