[tor-dev] Tor HS DHT Research

[Arlo Breault]

On Mon, Mar 3, 2014 at 6:02 AM, Gareth Owen <gareth.owen at port.ac.uk> wrote:

> Dear all
>
> Sorry if this is the wrong list (please tell me if it is).
>
> I'm undertaking research into the tor HS DHT and have a couple of
> questions.  I know at present, a node must be on for 25 hours to
> participate in the DHT; however, periodically I wish to make small code
> changes to Tor and restart the node (aka fairly instantly/within minutes)
> but this causes me to lose the HSDir flag.  So my questions are:
>
> 1) Is there anyway to restart Tor without losing the HSDir flag?
> 2) Is uptime self reporting - e.g. is a node's self reported uptime
> trusted or is it obtained elsewhere - I couldn't find the answer in the
> code.  I guess what I'm getting at, is can I fake the uptime to get the
> HSDir flag?
>

from comment 1 in,
https://trac.torproject.org/projects/tor/ticket/8243
it seems that uptime is self-reported in the descriptor and
that the directory authorities probably shouldn't be trusting it

rather than messing with that, maybe you want to setup an
experiment with shadow
http://shadow.github.io/
and turn on
TestingTorNetwork 1
so that
MinUptimeHidServDirectoryV2 0
https://www.torproject.org/docs/tor-manual.html.en



>
> Best
> Gareth
>
> ---
> Dr Gareth Owen
> School of Computing
> University of Portsmouth
>
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>
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