[Author Prev][Author Next][Thread Prev][Thread Next][Author Index][Thread Index]

Re: [tor-talk] Reasoning behind 10 minute circuit switch?



:)

Greg Curcio

On Tue, Oct 14, 2014 at 4:31 PM, Jacob Appelbaum <jacob@xxxxxxxxxxxxx>
wrote:

> > It was alas picked arbitrarily. As Nick notes, it used to be 30 seconds,
> > and then when we started getting users, all the relays complained of
> > running at 100% cpu handling circuit handshakes. We changed it to 10
> > minutes, and the complaints went away -- at least until the botnet
> > showed up.
> >
>
> As a side note - from some of my NSA research, we've found that PSC
> (Persona Session Collection) happens in ten minute windows. That means
> that a selector will trigger collection and that the collection on
> related flows will last for around ten minutes.
>
> Might be a good time to reconsider those circuit build times -
> especially if the above is correct. Hard to know for sure but good to
> disclose in any case.
>
> Happy hacking,
> Jacob
> --
> tor-talk mailing list - tor-talk@xxxxxxxxxxxxxxxxxxxx
> To unsubscribe or change other settings go to
> https://lists.torproject.org/cgi-bin/mailman/listinfo/tor-talk
>
-- 
tor-talk mailing list - tor-talk@xxxxxxxxxxxxxxxxxxxx
To unsubscribe or change other settings go to
https://lists.torproject.org/cgi-bin/mailman/listinfo/tor-talk