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From: Miron <c1.sf-bitcoin@niftybox.net>
To: bitcoin-development@lists.sourceforge.net
Subject: Re: [Bitcoin-development] Tor / SPV
Date: Wed, 15 Jan 2014 20:40:26 -0800	[thread overview]
Message-ID: <1389847226.19590.29.camel@mimiz> (raw)
In-Reply-To: <1389846587.19590.22.camel@mimiz>

On Wed, 2014-01-15 at 20:29 -0800, Miron wrote:
> On Wed, 2014-01-15 at 23:51 +0100, Mike Hearn wrote:
> ...
> > 3) SPV wallets that want to get a good mix of nodes for measuring
> > pending transactions identify nodes on the clearnet via their addr
> > announcements+service flag, in the normal way. They select some of
> > these nodes using the standard clearnet anti-sybil heuristics and
> > connect without using Tor. They proceed to query them for their hidden
> 
> The SPV node could connect to the IP using Tor.  It would preserve the
> privacy of the SPV node - hard to see it's running Bitcoin.  It also
> reduces the ability of an attacker to MITM because the routing varies
> with each exit node.
> 

It would also be good to gossip the mapping of (IP -> onion address).
This would allow detection of a future MITM, since the MITM can't spoof
the onion fingerprint.





      reply	other threads:[~2014-01-16  4:40 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-01-15 22:51 [Bitcoin-development] Tor / SPV Mike Hearn
2014-01-15 23:07 ` Brooks Boyd
2014-01-15 23:32   ` Mike Hearn
2014-01-16  2:26     ` Brooks Boyd
2014-01-16  4:30       ` Miron
2014-01-16 10:25       ` Mike Hearn
2014-01-16  3:54   ` Isidor Zeuner
2014-01-15 23:37 ` Robert McKay
2014-01-16  4:29 ` Miron
2014-01-16  4:40   ` Miron [this message]

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