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 13:43:44 -0700 [thread overview]
Message-ID: <CAAS2fgR5EEtevfKB2xKwExhtokb8naBH_PsLkJz3ZeJfeW6YFw@mail.gmail.com> (raw)
In-Reply-To: <20140818203343.GA639@localhost.localdomain>
On Mon, Aug 18, 2014 at 1:33 PM, Ivan Pustogarov <ivan.pustogarov@uni•lu> wrote:
> The attack I'm trying to address is described here: https://www.cryptolux.org/index.php/Bitcoin
> It was discussed here: https://bitcointalk.org/index.php?topic=632124.0
>
> It uses the following observation. Each NATed client connects to the Bitcoin network
> through 8 entry peers; he also advertises his public IP address to these peers which
> allows an attacker to make the mapping <8-entry-peers, client-IP-address>.
I'm afraid I'm losing you here. The node advertises himself to
everyone he is connected to and in/or out, those nodes pass along
those advertisements. When I receive an advertisement from a node I
do not know how far away the advertised peers is, presumably I can
accurately exclude it from being 0-hops— itself—) 1 or more should be
indistinguishable. Is there a reason that they're distinguishable that
I'm missing?
Can you explain to me how you propose to produce this mapping?
next prev parent reply other threads:[~2014-08-18 20:43 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-08-18 16:46 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
2014-08-18 20:33 ` Ivan Pustogarov
2014-08-18 20:43 ` Gregory Maxwell [this message]
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
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=CAAS2fgR5EEtevfKB2xKwExhtokb8naBH_PsLkJz3ZeJfeW6YFw@mail.gmail.com \
--to=gmaxwell@gmail$(echo .)com \
--cc=bitcoin-development@lists$(echo .)sourceforge.net \
--cc=ivan.pustogarov@uni$(echo .)lu \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox