From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from sog-mx-1.v43.ch3.sourceforge.com ([172.29.43.191] helo=mx.sourceforge.net) by sfs-ml-3.v29.ch3.sourceforge.com with esmtp (Exim 4.76) (envelope-from ) id 1Rb60w-0006ex-ES for bitcoin-development@lists.sourceforge.net; Thu, 15 Dec 2011 07:46:02 +0000 Received-SPF: pass (sog-mx-1.v43.ch3.sourceforge.com: domain of gmail.com designates 209.85.213.175 as permitted sender) client-ip=209.85.213.175; envelope-from=jordanmack1981@gmail.com; helo=mail-yx0-f175.google.com; Received: from mail-yx0-f175.google.com ([209.85.213.175]) by sog-mx-1.v43.ch3.sourceforge.com with esmtps (TLSv1:RC4-MD5:128) (Exim 4.76) id 1Rb60v-0006sW-PS for bitcoin-development@lists.sourceforge.net; Thu, 15 Dec 2011 07:46:02 +0000 Received: by yenm12 with SMTP id m12so1408711yen.34 for ; Wed, 14 Dec 2011 23:45:56 -0800 (PST) Received: by 10.236.197.99 with SMTP id s63mr4010374yhn.14.1323935156458; Wed, 14 Dec 2011 23:45:56 -0800 (PST) Received: from [192.168.0.50] (c-67-188-239-72.hsd1.ca.comcast.net. [67.188.239.72]) by mx.google.com with ESMTPS id a7sm8073032ana.5.2011.12.14.23.45.54 (version=SSLv3 cipher=OTHER); Wed, 14 Dec 2011 23:45:55 -0800 (PST) Sender: Jordan Mack Message-ID: <4EE9A5A9.3000904@parhelic.com> Date: Wed, 14 Dec 2011 23:45:45 -0800 From: Jordan Mack User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:8.0) Gecko/20111105 Thunderbird/8.0 MIME-Version: 1.0 To: bitcoin-development@lists.sourceforge.net References: <1323929094.37881.YahooMailClassic@web120902.mail.ne1.yahoo.com> In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Spam-Score: -1.4 (-) 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 (jordanmack1981[at]gmail.com) -0.0 SPF_PASS SPF: sender matches SPF record 0.1 FREEMAIL_ENVFROM_END_DIGIT Envelope-from freemail username ends in digit (jordanmack1981[at]gmail.com) 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: 1Rb60v-0006sW-PS Subject: Re: [Bitcoin-development] Fwd: [BIP 15] Aliases 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: Thu, 15 Dec 2011 07:46:02 -0000 I believe it is also worth mentioning the possible susceptibility of a DOS attack on a publicly available alias system. Assuming that an alias lookup triggers the creation of a new Bitcoin address, the private key would need to be retained indefinitely. If gone unnoticed, this could consume considerable resources over time. Unlike system logs and such, this is not something that can be so easily pruned.