From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from sog-mx-4.v43.ch3.sourceforge.com ([172.29.43.194] helo=mx.sourceforge.net) by sfs-ml-2.v29.ch3.sourceforge.com with esmtp (Exim 4.76) (envelope-from ) id 1X7Qi2-0007q5-BA for bitcoin-development@lists.sourceforge.net; Wed, 16 Jul 2014 15:01:30 +0000 Received-SPF: pass (sog-mx-4.v43.ch3.sourceforge.com: domain of gmail.com designates 209.85.214.182 as permitted sender) client-ip=209.85.214.182; envelope-from=mh.in.england@gmail.com; helo=mail-ob0-f182.google.com; Received: from mail-ob0-f182.google.com ([209.85.214.182]) by sog-mx-4.v43.ch3.sourceforge.com with esmtps (TLSv1:RC4-SHA:128) (Exim 4.76) id 1X7Qhz-0005EJ-5g for bitcoin-development@lists.sourceforge.net; Wed, 16 Jul 2014 15:01:30 +0000 Received: by mail-ob0-f182.google.com with SMTP id wm4so1064586obc.27 for ; Wed, 16 Jul 2014 08:01:21 -0700 (PDT) MIME-Version: 1.0 X-Received: by 10.182.115.134 with SMTP id jo6mr26725775obb.70.1405522881046; Wed, 16 Jul 2014 08:01:21 -0700 (PDT) Sender: mh.in.england@gmail.com Received: by 10.76.35.234 with HTTP; Wed, 16 Jul 2014 08:01:20 -0700 (PDT) In-Reply-To: References: Date: Wed, 16 Jul 2014 17:01:20 +0200 X-Google-Sender-Auth: 5if3ZX7zsAJAeFIkPVNgAhyw00Q Message-ID: From: Mike Hearn To: Gregory Maxwell Content-Type: multipart/alternative; boundary=089e0102fb060c7e0504fe50cc14 X-Spam-Score: -0.5 (/) X-Spam-Report: Spam Filtering performed by mx.sourceforge.net. See http://spamassassin.org/tag/ for more details. -1.5 SPF_CHECK_PASS SPF reports sender host as permitted sender for sender-domain 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (mh.in.england[at]gmail.com) -0.0 SPF_PASS SPF: sender matches SPF record 1.0 HTML_MESSAGE BODY: HTML included in message 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature X-Headers-End: 1X7Qhz-0005EJ-5g Cc: Bitcoin Dev Subject: Re: [Bitcoin-development] Draft BIP for geutxos message X-BeenThere: bitcoin-development@lists.sourceforge.net X-Mailman-Version: 2.1.9 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 16 Jul 2014 15:01:30 -0000 --089e0102fb060c7e0504fe50cc14 Content-Type: text/plain; charset=UTF-8 > > In particular, can this document > specifically call out that a local network attacker can MITM all the > peers. It already does, last sentence of the authentication section is: Querying multiple nodes and combining their answers can be a partial solution to this, although as nothing authenticates the Bitcoin P2P network a man in the middle could still yield incorrect results > (If Mike would prefer, I can send a diff with proposed changes) > Yes please. --089e0102fb060c7e0504fe50cc14 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
In particular, can this document
specifically call out that a local network attacker can MITM all the
peers.

It already does, last sentence of th= e authentication section is:

Querying multiple nodes and combining their answers can b= e a partial solution to this, although as nothing authenticates the Bitcoin= P2P network a man in the middle could still yield incorrect results=
=C2=A0
=C2=A0
(If Mike would prefer,= I can send a diff with proposed changes)

Yes please.=C2=A0

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