From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from sog-mx-3.v43.ch3.sourceforge.com ([172.29.43.193] helo=mx.sourceforge.net) by sfs-ml-4.v29.ch3.sourceforge.com with esmtp (Exim 4.76) (envelope-from ) id 1XBawv-0001aN-I0 for bitcoin-development@lists.sourceforge.net; Mon, 28 Jul 2014 02:46:05 +0000 Received-SPF: pass (sog-mx-3.v43.ch3.sourceforge.com: domain of gmail.com designates 209.85.213.179 as permitted sender) client-ip=209.85.213.179; envelope-from=gmaxwell@gmail.com; helo=mail-ig0-f179.google.com; Received: from mail-ig0-f179.google.com ([209.85.213.179]) by sog-mx-3.v43.ch3.sourceforge.com with esmtps (TLSv1:RC4-SHA:128) (Exim 4.76) id 1XBawu-0006r4-K2 for bitcoin-development@lists.sourceforge.net; Mon, 28 Jul 2014 02:46:05 +0000 Received: by mail-ig0-f179.google.com with SMTP id h18so3066481igc.12 for ; Sun, 27 Jul 2014 19:45:59 -0700 (PDT) MIME-Version: 1.0 X-Received: by 10.50.33.100 with SMTP id q4mr27532493igi.8.1406515559127; Sun, 27 Jul 2014 19:45:59 -0700 (PDT) Received: by 10.107.14.67 with HTTP; Sun, 27 Jul 2014 19:45:59 -0700 (PDT) In-Reply-To: <20140728024030.GA17724@savin> References: <20140728024030.GA17724@savin> Date: Sun, 27 Jul 2014 19:45:59 -0700 Message-ID: From: Gregory Maxwell To: Peter Todd Content-Type: text/plain; charset=UTF-8 X-Spam-Score: -1.6 (-) 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 (gmaxwell[at]gmail.com) -0.0 SPF_PASS SPF: sender matches SPF record -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain 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: 1XBawu-0006r4-K2 Cc: Bitcoin Dev , alex@stamos.org Subject: Re: [Bitcoin-development] Abnormally Large Tor node accepting only Bitcoin traffic 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: Mon, 28 Jul 2014 02:46:05 -0000 On Sun, Jul 27, 2014 at 7:40 PM, Peter Todd wrote: > Anyway, just goes to show that we need to implement better incoming > connection limiting. gmaxwell has a good scheme with interactive > proof-of-memory - where's your latest writeup? Or its a complete snipe hunt, I'm unable to find any nodes with it connected to them. Does anyone here have any? Last discussion on the measures for anti-global-resource-consumption was at https://bitcointalk.org/index.php?topic=310323.0 but it hasn't seemed to be a huge issue such that adding more protocol surface area was justified.