[tor-talk] Tor (and other nets) probably screwed by Traffic Analysis by now

[Aymeric Vitte]

Yes: https://github.com/Ayms/node-Tor#convergence

Let's imagine that one Tor circuit reaches a P2P network (here browsers)
and is splitted between different peers (UDP) circuits before
reasynching to a relay or end point, then the reconciliation from the
source to the end point is quite unlikely

Le 02/06/2016 à 18:29, grarpamp a écrit :
> On 6/2/16, Allen <allenpmd at gmail.com> wrote:
>> Another alternative would be to re-architect the services of interest to
>> use a message or packet store-and-forward protocol with a random delay to
>> thwart traffic analysis.
> Perhaps different terms for same derivative thing?
> From other searchable and recent threads...
> Fill traffic needs store and forward with random delay, for low latency
> requirements it could be called reclocking with jitter, rearchitecting
> for higher latency adds additional bounds on time to the interval
> and jitter clocks. Packet / message oriented / UDP seems useful
> to remove constraints of TCP-in-TCP allowing for management
> of fill traffic, multipath traffic spreading, pluggables, and so on.
>
> Ineffective is say rearchitecting web "services" to deliver a tarball
> of a website for offline reading, if said delivery is over a traditional
> non fill network, it will be TA'd.
>
> Fill / chaff seem needed, otherwise in an all wheat network,
> input traffic on one side seems to match output traffic on the
> other side at some point, regardless of storage / delay.
> Fixed packet sizes seem to help.
> Fill ratios up to 100% utilization can mask the wheat.
> Minimum fill is amount needed for plausible deniability
> that single input can't be mapped to a single output.
> ie: 10MiB in, must have at least two outputs that
> received 10MiB.
>
> Is there any group / list that is actively researching
> or developing such networks? Or that wants to?

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