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From: Gregory Maxwell <gmaxwell@gmail.com>
To: Ivan Pustogarov <ivan.pustogarov@uni.lu>
Cc: Bitcoin Development <bitcoin-development@lists.sourceforge.net>
Subject: Re: [Bitcoin-development] Outbound connections rotation
Date: Mon, 18 Aug 2014 12:37:49 -0700	[thread overview]
Message-ID: <CAAS2fgQa1ZURn1M9-LBnSHsE5fHKdatrVbNJbd+E9JYQYH=wFw@mail.gmail.com> (raw)
In-Reply-To: <20140818183721.GD31175@localhost.localdomain>

On Mon, Aug 18, 2014 at 11:37 AM, Ivan Pustogarov
<ivan.pustogarov@uni.lu> wrote:
> the same for a long time, an attacker which does not have any peers at all
> but just listens the Bitcoin network can link together differed BC addresses
> and learn the IP of the client.

I don't understand what you're talking about here; if you have no peer
at all you will learn nothing about the Bitcoin network.

Can you clarify?


> The 8 entry peers are unique per client so if two
> users share the same IP, they can be distinguished.

What mechanism are you referring to specifically?

> Outbound connections are still rotated from time to time due to remote side
> disconnections. Plus outbound connections do not survive BC client restarts
> (unlike Tor Guard nodes).

On our initial connections we do have a preference for nodes we knew
were up recently. This could be made further. That the current
behavior isn't great isn't an argument for making it worse on that
dimension.



  reply	other threads:[~2014-08-18 19:37 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-08-18 16:46 [Bitcoin-development] Outbound connections rotation Ivan Pustogarov
2014-08-18 17:19 ` Jeff Garzik
2014-08-18 17:21 ` Gregory Maxwell
2014-08-18 17:27   ` Mike Hearn
2014-08-18 17:35   ` Pieter Wuille
     [not found]   ` <CAPg+sBgzEMAQ03GTE2j82+K2B+Dia6T0z14ZYWsBQ8z8QSVoLg@mail.gmail.com>
     [not found]     ` <CAAS2fgRT8OQzUkneKwpjD15aLZDivT=hgBMTB63EjN8RBrp+RQ@mail.gmail.com>
2014-08-18 18:13       ` [Bitcoin-development] Fwd: " Gregory Maxwell
2014-08-18 18:38         ` Wladimir
2014-08-18 18:37   ` [Bitcoin-development] " Ivan Pustogarov
2014-08-18 19:37     ` Gregory Maxwell [this message]
2014-08-18 20:33       ` Ivan Pustogarov
2014-08-18 20:43         ` Gregory Maxwell
2014-08-18 21:02           ` Ivan Pustogarov
2014-08-18 23:20             ` Gregory Maxwell
2014-08-20 12:59 ` [Bitcoin-development] Proposal: PoW-based throttling of addresses (was: Outbound connections rotation) Isidor Zeuner
2014-08-20 14:41   ` Mike Hearn
2014-08-23 11:53   ` Isidor Zeuner
2014-08-23 13:03     ` Mike Hearn
2014-11-13 22:52     ` Isidor Zeuner
2014-11-18 12:06       ` Mike Hearn
2014-11-27  3:29   ` Isidor Zeuner

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