[tor-dev] A Child's Garden of Pluggable Transports

[Lunar]

David Fifield:
> Have you ever wondered what makes the Tor protocol fingerprintable, and
> makes pluggable transports necessary? Have you wondered how obfs3
> obscures byte patterns in Tor? What a flash proxy WebSocket connection
> actually looks like, and why it defeats IP blocking but not DPI?
> 
> Then I have the wiki page for you:
> 
> https://trac.torproject.org/projects/tor/wiki/doc/AChildsGardenOfPluggableTransports
> 
> It's a visualization of different pluggable transports, meant to be an
> aid to understanding. At the top is an ordinary Tor handshake, with some
> fingerprintable data fields highlighted. The following sections, one for
> each transport, show how those fields are hidden--or not. I tried to
> demonstrate aspects of different transports that I think are hard to
> intuit, such as what flash proxy rendezvous looks like, and how
> transports look under the encrypted layer that is visible to a censor.

This is a beautiful and helpful piece of work. Thank you!

-- 
Lunar                                             <lunar at torproject.org>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 836 bytes
Desc: Digital signature
URL: <http://lists.torproject.org/pipermail/tor-dev/attachments/20140521/f22a07f1/attachment-0001.sig>