[tor-talk] passive analysis of encrypted traffic and traffic obfuscation

[vecna]

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Brandon Wiley wrote:
> This is
> an interesting method of obfuscation as it seems like it would interfere to
> some extent with the three most popular DPI techniques: string matching,
> packet lengths, and packet timings. However, like most obfuscation methods
> this method seems like it would not be effective once the censor was aware
> of the method as they could just add more filtering rules to filter out the
> fake packets.
I belive (or i hope, only the research will make a definitive answer)
Not. because sniffjoke use only plausible packets in the network,
exploiting the "ambiguity" that every sniffer found to face, when choose
if accept a packets or not as part of the streams under tracking.

so there are not a pattern of "fake packets", also because all the
"good" packets are modified too expecting to confound statistical analysis.

> I'd like to know more about the details of how sniffjoke works, so please
> let me know if you can provide any additional details.
> 
> [1]
> http://www.delirandom.net/sniffjoke/sniffjoke-howto-usage/sniffjoke-howto-details

sorry, my documentations really sucks :) anyway the evening I've drank a
lot of yerba mate, and the sleep deprivation has results in a totally
new amount of contents.

in logic order:

http://www.delirandom.net/sniffjoke/sniffjoke-howto-usage/sniffjoke-how-does-work
http://www.delirandom.net/sniffjoke/sniffjoke-howto-usage/
http://www.delirandom.net/sniffjoke/sniffjoke-howto-usage/sniffjoke-locations
http://www.delirandom.net/sniffjoke/sniffjoke-howto-usage/sniffjoke-howto-packet-scrambling
http://www.delirandom.net/sniffjoke/sniffjoke-howto-usage/sniffjoke-howto-tcp-hacks

p.s. sorry for my poor english, I wish the technical information will be
understandable beside the grammar damages :P

cheers,
vecna
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