Received: from sog-mx-4.v43.ch3.sourceforge.com ([172.29.43.194]
	helo=mx.sourceforge.net)
	by sfs-ml-4.v29.ch3.sourceforge.com with esmtp (Exim 4.76)
	(envelope-from <timon.elviejo@gmail.com>) id 1Rb671-0001co-KZ
	for bitcoin-development@lists.sourceforge.net;
	Thu, 15 Dec 2011 07:52:19 +0000
Received-SPF: pass (sog-mx-4.v43.ch3.sourceforge.com: domain of gmail.com
	designates 74.125.82.53 as permitted sender)
	client-ip=74.125.82.53; envelope-from=timon.elviejo@gmail.com;
	helo=mail-ww0-f53.google.com; 
Received: from mail-ww0-f53.google.com ([74.125.82.53])
	by sog-mx-4.v43.ch3.sourceforge.com with esmtps (TLSv1:RC4-MD5:128)
	(Exim 4.76) id 1Rb670-0001EB-LT
	for bitcoin-development@lists.sourceforge.net;
	Thu, 15 Dec 2011 07:52:19 +0000
Received: by wgbds1 with SMTP id ds1so3117717wgb.10
	for <bitcoin-development@lists.sourceforge.net>;
	Wed, 14 Dec 2011 23:52:12 -0800 (PST)
MIME-Version: 1.0
Received: by 10.227.197.70 with SMTP id ej6mr1277647wbb.13.1323935532607; Wed,
	14 Dec 2011 23:52:12 -0800 (PST)
Received: by 10.223.81.79 with HTTP; Wed, 14 Dec 2011 23:52:12 -0800 (PST)
In-Reply-To: <4EE9A5A9.3000904@parhelic.com>
References: <CA+QPp0rAJz9wPcrf926q=_c45mCL_67JCyacvM79CWcic9AL2w@mail.gmail.com>
	<1323929094.37881.YahooMailClassic@web120902.mail.ne1.yahoo.com>
	<CACwuEiPbLdpgYCcTHH_GCHcwGcGj5HnOMFKkQf860D4Xn0mLsQ@mail.gmail.com>
	<4EE9A5A9.3000904@parhelic.com>
Date: Thu, 15 Dec 2011 08:52:12 +0100
Message-ID: <CAGQP0AGJ4-nhSfhBXKWcDY_JdPp_RQdinLVO7NXf4JWub51oFw@mail.gmail.com>
From: =?ISO-8859-1?Q?Jorge_Tim=F3n?= <timon.elviejo@gmail.com>
Cc: bitcoin-development@lists.sourceforge.net
Content-Type: text/plain; charset=ISO-8859-1
X-Spam-Score: -0.6 (/)
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
	(timon.elviejo[at]gmail.com)
	-0.0 SPF_PASS               SPF: sender matches SPF record
	1.2 MISSING_HEADERS        Missing To: header
	-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
	-0.2 AWL AWL: From: address is in the auto white-list
X-Headers-End: 1Rb670-0001EB-LT
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: <bitcoin-development.lists.sourceforge.net>
List-Unsubscribe: <https://lists.sourceforge.net/lists/listinfo/bitcoin-development>,
	<mailto:bitcoin-development-request@lists.sourceforge.net?subject=unsubscribe>
List-Archive: <http://sourceforge.net/mailarchive/forum.php?forum_name=bitcoin-development>
List-Post: <mailto:bitcoin-development@lists.sourceforge.net>
List-Help: <mailto:bitcoin-development-request@lists.sourceforge.net?subject=help>
List-Subscribe: <https://lists.sourceforge.net/lists/listinfo/bitcoin-development>,
	<mailto:bitcoin-development-request@lists.sourceforge.net?subject=subscribe>
X-List-Received-Date: Thu, 15 Dec 2011 07:52:19 -0000

2011/12/15, Jordan Mack <jordanmack@parhelic.com>:
> 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.

You're right. Then servers should not use a different address with
every lookup. Maybe don't change it more than once per
min/hour/whatever, maybe wait to see a payment to that address to
start giving another one...