Received: from sog-mx-1.v43.ch3.sourceforge.com ([172.29.43.191] helo=mx.sourceforge.net) by sfs-ml-2.v29.ch3.sourceforge.com with esmtp (Exim 4.76) (envelope-from ) id 1WGVHi-0001Tg-AJ for bitcoin-development@lists.sourceforge.net; Thu, 20 Feb 2014 15:11:34 +0000 Received-SPF: pass (sog-mx-1.v43.ch3.sourceforge.com: domain of gmail.com designates 209.85.223.182 as permitted sender) client-ip=209.85.223.182; envelope-from=pieter.wuille@gmail.com; helo=mail-ie0-f182.google.com; Received: from mail-ie0-f182.google.com ([209.85.223.182]) by sog-mx-1.v43.ch3.sourceforge.com with esmtps (TLSv1:RC4-SHA:128) (Exim 4.76) id 1WGVHh-00023j-Du for bitcoin-development@lists.sourceforge.net; Thu, 20 Feb 2014 15:11:34 +0000 Received: by mail-ie0-f182.google.com with SMTP id tp5so1335581ieb.13 for ; Thu, 20 Feb 2014 07:11:28 -0800 (PST) MIME-Version: 1.0 X-Received: by 10.42.97.193 with SMTP id p1mr1849051icn.32.1392909088187; Thu, 20 Feb 2014 07:11:28 -0800 (PST) Received: by 10.50.100.10 with HTTP; Thu, 20 Feb 2014 07:11:27 -0800 (PST) In-Reply-To: References: <52FBD948.906@monetize.io> <201402122252.31060.luke@dashjr.org> <601EE159-9022-4ADF-80AC-7E1C39E86A65@mac.com> <81A62AB7-9EC6-439E-96CF-F064F0151BB9@mac.com> Date: Thu, 20 Feb 2014 16:11:27 +0100 Message-ID: From: Pieter Wuille To: Gavin Andresen Content-Type: text/plain; charset=ISO-8859-1 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 (pieter.wuille[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: 1WGVHh-00023j-Du Cc: Bitcoin Dev Subject: Re: [Bitcoin-development] [RFC] [BIP proposal] Dealing with malleability 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, 20 Feb 2014 15:11:34 -0000 I hereby request a BIP number. On Thu, Feb 20, 2014 at 3:58 PM, Gavin Andresen wrote: > Great, I'm hearing rough consensus to proceed with Pieter's plan. > > RE: far from confident on malleability routes: I'm reasonably confident > that we can squash malleability for IsStandard, SIGHASH_ALL transactions. A > proper proof of DSA signature un-malleability (or an lower bound for how > much work it would be to create a valid doppleganger signature) would be > great, but I don't think it is necessary to proceed. > > > On Thu, Feb 20, 2014 at 9:36 AM, Gregory Maxwell wrote: >> >> On Thu, Feb 20, 2014 at 6:29 AM, Gavin Andresen >> wrote: >> > I think we should get Pieter's proposal done and implemented quickly. I >> > agree with Mike, it doesn't have to take a long time for the core >> > network to >> > fully support this. >> > >> > Getting wallets to start generating transaction.version=3 might take >> > years, >> > but that is OK. >> >> Sure I'm all for doing what Pieter suggested-- it's basically the plan >> we've been executing for some time already but with the version check >> to make it sane to complete. >> >> My reserved sounding comments were relative to the proposals to do >> things with nversion=1 transactions, frankly I think thats completely >> insane. Though while we're on the subject of reservations, I am far >> from confident that we've uncovered all the possible malleability >> routes-- that list gained a new, never before discussed entry, when >> Pieter was writing it a couple weeks ago. We also have no proof of >> the absence of further algebraic malleability in DSA (though I think >> its somewhat unlikely, a solid proof of it has been somewhat elusive). > > > > > -- > -- > Gavin Andresen > > ------------------------------------------------------------------------------ > Managing the Performance of Cloud-Based Applications > Take advantage of what the Cloud has to offer - Avoid Common Pitfalls. > Read the Whitepaper. > http://pubads.g.doubleclick.net/gampad/clk?id=121054471&iu=/4140/ostg.clktrk > _______________________________________________ > Bitcoin-development mailing list > Bitcoin-development@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/bitcoin-development >