[tor-dev] Special-use-TLD support

[Jeremy Rand]

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On 09/27/2015 05:47 PM, Jeff Burdges wrote:
> 
> This is the first of two torspec proposals to help Tor work with
> Sepcial-Use TLDs, like the GNU Name system or NameCoin.  The second
> part will be an anycast facility.   - Jeff

Hi Jeff,

Thanks for working on this; Namecoin is definitely interested in this
effort.  I have one comment.  SPV-based Namecoin clients will, under
some circumstances, generate network traffic to other Namecoin P2P
nodes containing names being looked up.  To avoid linkability, stream
isolation should be used so that different Namecoin lookups go over
different Tor circuits if the lookups correspond to TCP streams that
go over different Tor circuits.  (Also, the choice of Namecoin nodes
to peer with should be different for each identity.)  Therefore, it
seems to me that there should be a mechanism for Tor to provide stream
isolation information to the naming systems that it calls, along with
"new identity" commands.

The above issue doesn't affect full Namecoin clients, or SPV Namecoin
clients that download the full unspent domain name set.  I don't know
enough about the GNU Name System to know how this issue affects it, if
at all.

Thoughts on this?

Also, trivial spelling nitpick: "Namecoin" is typically spelled with a
lowercase "c", like "Bitcoin".

Thanks again for working on this!

Cheers,
- -Jeremy Rand
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