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From: Gregory Maxwell <gmaxwell@gmail.com>
To: Isidor Zeuner <cryptocurrencies@quidecco.de>
Cc: Bitcoin Development <bitcoin-development@lists.sourceforge.net>
Subject: Re: [Bitcoin-development] Deanonymisation of clients in Bitcoin P2P network paper
Date: Thu, 27 Nov 2014 02:22:35 +0000	[thread overview]
Message-ID: <CAAS2fgRSxBmyDg5R7WgisB-XmhrpGVKHXQpchtL-Ow0xDQAziA@mail.gmail.com> (raw)
In-Reply-To: <20141127020947.A13D2E19A09@quidecco.de>

> Since this attack vector has been discussed, I started making some
> measurements on how effective it is to connect to Bitcoin using Tor,
> and I found that the number of connections dropping to near-zero is
> a situation which occurs rather frequently, which suggests that there
> is still room to improve on the DoS handling.

I'm confused by this, I run quite a few nodes exclusively on tor and
chart their connectivity and have seen no such connection dropping
behaviour.

Can you tell me more about how you measured this?

[As an aside I agree that there are lots of things to improve here,
but the fact that users can in theory be forced off of tor via DOS
attacks is not immediately concerning to me because its a conscious
choice users would make to abandon their privacy (and the behaviour of
the system here is known and intentional). There are other mechanisms
available for people to relay their transactions than connecting
directly to the bitcoin network; so their choice isn't just abandon
privacy or don't use bitcoin at all.]



  reply	other threads:[~2014-11-27  2:22 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-11-26  7:47 [Bitcoin-development] Deanonymisation of clients in Bitcoin P2P network paper Jean-Paul Kogelman
2014-11-26 13:51 ` Jeff Garzik
2014-11-26 17:13   ` odinn
2014-11-27  2:09   ` Isidor Zeuner
2014-11-27  2:22     ` Gregory Maxwell [this message]
2014-11-27 11:06       ` Mike Hearn
2014-11-27 11:27       ` Wladimir
2014-12-08 16:15       ` Isidor Zeuner
2014-12-08 16:59         ` Mike Hearn
2015-01-22  0:44         ` Isidor Zeuner
2015-01-22 13:20           ` Mike Hearn
2014-12-15 13:25       ` Isidor Zeuner
2014-12-01 10:42     ` Isidor Zeuner
2014-11-27 17:44 Mistr Bigs
2014-11-27 20:30 ` Gregory Maxwell
2014-11-28  0:45 Mistr Bigs
2014-11-28  5:30 ` Gregory Maxwell
2014-12-11 11:51 ` Isidor Zeuner

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