Reducing relays = reducing anonymity ? Tortunnel.

Damian Johnson atagar1 at gmail.com
Wed May 19 17:02:11 UTC 2010


>
> Does anybody use tortunnel ?
>

Never heard of it before, so doubt it.

Is tortunnel evil since it maybe hacks Tor-cirucits to reduce the number
> of relays ?
>

We discourage people from reducing the circuit length since it cripples the
anonymity tor provides, makes exit nodes more tasty targets since they can
correlate users to exit traffic, etc. There's been several discussion of
this in the archives.

Where is the security/anonymity reduction since tortunnel also uses
> Tor ?
>

It's equivalent to using a single hop proxy.

Can Tor itself reduce the number of relays (like tortunnel) ?
>

No, nor do we want it to.

Cheers! -Damian

On Wed, May 19, 2010 at 9:06 AM, Attac Heidenheim <heidenheim at attac.de>wrote:

> Hi everybody,
> I just tried a little tool called "Tortunnel" which allows a user to
> "tunnel" Tor via Privoxy/Polipo to any selected exitnode. Just one hop
> instead of three relays.
> Of course, if the exitnode ist evil, you're lost, but it really speeds
> up the whole thing on the other hand.
> Website: http://www.thoughtcrime.org/software/tortunnel/
>
> My questions:
> Does anybody use tortunnel ?
> Is tortunnel evil since it maybe hacks Tor-cirucits to reduce the number
> of relays ?
> Where is the security/anonymity reduction since tortunnel also uses
> Tor ?
> Can Tor itself reduce the number of relays (like tortunnel) ?
>
> Greetings,
> Niklas
>
>
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