Re: [tor-dev] Reachability testing brainstorming. (OONI, metrics, pluggable-transports)

[Aaron <aagbsn@xxxxxxxxxxxxxx>]

On Fri, Jul 20, 2012 at 3:08 PM, Aaron <aagbsn@xxxxxxxxxxxxxx> wrote:
> BridgeDB was extended to filter bridges that are blocked in a
> specified country from its response. BridgeDB needs a list of what is
> blocked, and where, for this to work.
>
> We want to answer the question "What is blocked, and where", with the
> constraint that the list of bridges should not become public.
>
> Here are a few questions to kick off the discussion. Any insight, more
> questions (or answers) are appreciated.
>
> 1. Do we want active or passive reachability testing (or both)?
> 2. For active scanning, OONI comes to mind. Do we trust operators with
> the list of bridges? A partial list of bridges?
> 3. Does an open TCP port mean that a bridge is 'reachable' or should
> the test complete a full handshake?
> 4. What about pluggable transports (PT)? Will the Bridge Authority do
> independent reachability testing of PTs?
> 5. What concerns are there regarding detectability of active scanning?
> 6. For passive censorship detection, are there other indicators other
> than relay/bridge usage-by-country over time?
> 7. Should relays report per-country usage by address/transport? What
> are the upsides? Downsides?
>
> Thanks in advance!
> --Aaron

Looks like the discussion should be continued here instead:
https://trac.torproject.org/projects/tor/ticket/6414

Thanks
--Aaron
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