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 1S2mvK-0001EU-0I for bitcoin-development@lists.sourceforge.net; Wed, 29 Feb 2012 17:02:42 +0000 X-ACL-Warn: Received: from nm30-vm5.bullet.mail.ne1.yahoo.com ([98.138.91.252]) by sog-mx-4.v43.ch3.sourceforge.com with smtp (Exim 4.76) id 1S2mvE-0000sl-9B for bitcoin-development@lists.sourceforge.net; Wed, 29 Feb 2012 17:02:41 +0000 Received: from [98.138.90.56] by nm30.bullet.mail.ne1.yahoo.com with NNFMP; 29 Feb 2012 17:02:29 -0000 Received: from [98.138.89.194] by tm9.bullet.mail.ne1.yahoo.com with NNFMP; 29 Feb 2012 17:02:29 -0000 Received: from [127.0.0.1] by omp1052.mail.ne1.yahoo.com with NNFMP; 29 Feb 2012 17:02:29 -0000 X-Yahoo-Newman-Property: ymail-5 X-Yahoo-Newman-Id: 914322.57462.bm@omp1052.mail.ne1.yahoo.com Received: (qmail 4193 invoked by uid 60001); 29 Feb 2012 17:02:29 -0000 X-YMail-OSG: F1OYUs4VM1kGnHo5bVdVDjXrMJ1iYh.qG1gUGbe6ARKZfit xJ3rTUT080Rn9Cd3lTD2MLEcEFpH6LAmTMqG_c6xJrZSOIfI5gt4P.OYDGnD Umdq1MHFqA6ePmkfVF4_eHJFdPgTZcdZRkCBIQSaKlX3SKvcqFvmh6bcA6Fe 4Vbs5879w6QMQvIRQ.o_tj6g2L2UZg8ZXQ0iQshRYLlpV0xoGJ1RQOP0VxtZ IVd8Kf43I7r0Ku1ZIO3Vq1xb0zGiBiJqkHwyhcUWXAfTqrO5lXxMBX0rGr6O b2a9pdeLDR0d5aOBQJHpFsoN3v3AIVD.yoGd3HZLdG08Smu7k0vh_lEbgdAU vRFDEMEaJdczgT2T4RCQs8hLGLzS2fw9Hyk96EoTllYiN2TOGV6GiNAjG04M ehfNNJWNFlWPJ85ph0pGd_d2pE8_IGxdr6ZgugmD0U10MHVxySDOtq820WzK McbU9PZcmYJLk9aD5inibsvTrC7aDeMvkSWL010URAVp4uJ6d3Z9us8o2ZPB 3Jlg30FwIxFsWyY6bTVGYlPVoLCmXh2FEdUWU_5QAjGV1QGLZjbKYJ36gtw- - Received: from [2.97.161.54] by web121004.mail.ne1.yahoo.com via HTTP; Wed, 29 Feb 2012 09:02:29 PST X-Mailer: YahooMailWebService/0.8.116.338427 References: <20120229164747.GA581@vps7135.xlshosting.net> Message-ID: <1330534949.81609.YahooMailNeo@web121004.mail.ne1.yahoo.com> Date: Wed, 29 Feb 2012 09:02:29 -0800 (PST) From: Amir Taaki To: "bitcoin-development@lists.sourceforge.net" In-Reply-To: <20120229164747.GA581@vps7135.xlshosting.net> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="-1562933420-65607732-1330534949=:81609" X-Spam-Score: 0.6 (/) X-Spam-Report: Spam Filtering performed by mx.sourceforge.net. See http://spamassassin.org/tag/ for more details. -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at http://www.dnswl.org/, no trust [98.138.91.252 listed in list.dnswl.org] 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (zgenjix[at]yahoo.com) -0.0 T_RP_MATCHES_RCVD Envelope sender domain matches handover relay domain 1.0 HTML_MESSAGE BODY: HTML included in message -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 -0.3 AWL AWL: From: address is in the auto white-list X-Headers-End: 1S2mvE-0000sl-9B Subject: Re: [Bitcoin-development] Duplicate transactions vulnerability X-BeenThere: bitcoin-development@lists.sourceforge.net X-Mailman-Version: 2.1.9 Precedence: list Reply-To: Amir Taaki List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 29 Feb 2012 17:02:42 -0000 ---1562933420-65607732-1330534949=:81609 Content-Type: text/plain; charset=us-ascii I support BIP 30. I gave it a thought. The other ways of resolving this issue, all have various niggles. This is the best way. ________________________________ From: Pieter Wuille To: Zooko Wilcox-O'Hearn Cc: Bitcoin Dev Sent: Wednesday, February 29, 2012 4:47 PM Subject: Re: [Bitcoin-development] Duplicate transactions vulnerability On Tue, Feb 28, 2012 at 06:41:31PM -0700, Zooko Wilcox-O'Hearn wrote: > Could you spell out the attack explicitly? Presumably there aren't a > lot of people with the "malice energy" to perform the attack but not > to figure it out for themselves. I, however, have the "niceness > energy" to think about it for a few minutes but not to figure it out > for myself. If in your opinion it is realistically dangerous to post > it publicly, would you be so kind as to include me in the private > sharing of the explanation? It's not exactly a secret anymore, as the patch also references it. Russell O'Connor described the attack on his blog: http://r6.ca/blog/20120206T005236Z.html -- Pieter ------------------------------------------------------------------------------ Virtualization & Cloud Management Using Capacity Planning Cloud computing makes use of virtualization - but cloud computing also focuses on allowing computing to be delivered as a service. http://www.accelacomm.com/jaw/sfnl/114/51521223/ _______________________________________________ Bitcoin-development mailing list Bitcoin-development@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bitcoin-development ---1562933420-65607732-1330534949=:81609 Content-Type: text/html; charset=us-ascii
I support BIP 30.

I gave it a thought. The other ways of resolving this issue, all have various niggles. This is the best way.

From: Pieter Wuille <pieter.wuille@gmail.com>
To: Zooko Wilcox-O'Hearn <zooko@zooko.com>
Cc: Bitcoin Dev <bitcoin-development@lists.sourceforge.net>
Sent: Wednesday, February 29, 2012 4:47 PM
Subject: Re: [Bitcoin-development] Duplicate transactions vulnerability

On Tue, Feb 28, 2012 at 06:41:31PM -0700, Zooko Wilcox-O'Hearn wrote:
> Could you spell out the attack explicitly? Presumably there aren't a
> lot of people with the "malice energy" to perform the attack but not
> to figure it out for themselves. I, however, have the "niceness
> energy" to think about it for a few minutes but not to figure it out
> for myself. If in your opinion it is realistically dangerous to post
> it publicly, would you be so kind as to include me in the private
> sharing of the explanation?

It's not exactly a secret anymore, as the patch also references it.
Russell O'Connor described the attack on his blog:
http://r6.ca/blog/20120206T005236Z.html

--
Pieter

------------------------------------------------------------------------------
Virtualization & Cloud Management Using Capacity Planning
Cloud computing makes use of virtualization - but cloud computing
also focuses on allowing computing to be delivered as a service.
http://www.accelacomm.com/jaw/sfnl/114/51521223/
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Bitcoin-development mailing list
Bitcoin-development@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/bitcoin-development


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