[tor-dev] Tor proposals implemented in Tor 0.2.3.x

Ian Goldberg iang at cs.uwaterloo.ca
Sun Jul 1 16:24:57 UTC 2012

On Sun, Jul 01, 2012 at 05:29:04PM +0200, Fabian Keil wrote:
> >                                       So if only a handful of clients
> > have upgraded to a TBB that supports it (none does at this time),
> > they'll stand out.  That's why the default is "use the consensus value",
> > which is currently off.  The consensus value can be turned on later,
> > when "enough" people can support it.
> The default can be changed, though, and while the man page
> contains recommendations and even strong recommendation for
> other parameter values, there's no recommendation for or against
> changing the OptimisticData settings and the risks aren't
> mentioned either.
> The TorBrowser isn't the only client that could optimistically send
> data and other clients (like Privoxy) will need an option for this,
> that the user has to explicitly enable.
> It's inappropriate for Privoxy's documentation to make recommendations
> for or against modifications of Tor's OptimisticData option, therefore
> it would be great if the Tor man page contained such a recommendation
> so the Privoxy documentation can link to it without putting the user
> at risk of changing the option after reading Tor's man page without
> understanding the consequences.

Does Privoxy support optimistic data?  SOCKS clients (TBB, Privoxy, IM
clients, etc.) need to be modified in order to use this feature of Tor,
as it entails the client sending the data to the SOCKS proxy (the Tor
OP) *before* receiving the SOCKS connection response from it.

   - Ian

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