Received: from sog-mx-3.v43.ch3.sourceforge.com ([172.29.43.193] helo=mx.sourceforge.net) by sfs-ml-3.v29.ch3.sourceforge.com with esmtp (Exim 4.76) (envelope-from ) id 1Z6SKH-0006LC-Rv for bitcoin-development@lists.sourceforge.net; Sat, 20 Jun 2015 23:37:29 +0000 Received-SPF: pass (sog-mx-3.v43.ch3.sourceforge.com: domain of riseup.net designates 198.252.153.129 as permitted sender) client-ip=198.252.153.129; envelope-from=justusranvier@riseup.net; helo=mx1.riseup.net; Received: from mx1.riseup.net ([198.252.153.129]) by sog-mx-3.v43.ch3.sourceforge.com with esmtps (TLSv1:AES256-SHA:256) (Exim 4.76) id 1Z6SKG-0003TP-Mu for bitcoin-development@lists.sourceforge.net; Sat, 20 Jun 2015 23:37:29 +0000 Received: from berryeater.riseup.net (berryeater-pn.riseup.net [10.0.1.120]) (using TLSv1 with cipher ECDHE-RSA-AES256-SHA (256/256 bits)) (Client CN "*.riseup.net", Issuer "COMODO RSA Domain Validation Secure Server CA" (verified OK)) by mx1.riseup.net (Postfix) with ESMTPS id D18884183B; Sat, 20 Jun 2015 23:37:22 +0000 (UTC) Received: from [127.0.0.1] (localhost [127.0.0.1]) (Authenticated sender: justusranvier) with ESMTPSA id AF41B41FB1 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Date: Sat, 20 Jun 2015 18:37:22 -0500 From: justusranvier@riseup.net To: =?UTF-8?Q?Jorge_Tim=C3=B3n?= In-Reply-To: References: <20150619103959.GA32315@savin.petertodd.org> <04CE3756-B032-464C-8FBD-7ACDD1A3197D@gmail.com> <812d8353e66637ec182da31bc0a9aac1@riseup.net> <1727885.UUNByX4Jyd@crushinator> <83A7C606-B601-47D2-BE10-2A1412D97514@gmail.com> Message-ID: <8a49c53a032503eeca4f51cdef725fe1@riseup.net> X-Sender: justusranvier@riseup.net User-Agent: Riseup mail X-Virus-Scanned: clamav-milter 0.98.7 at mx1 X-Virus-Status: Clean Content-Transfer-Encoding: quoted-printable X-Spam-Score: -2.0 (--) 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 RCVD_IN_DNSWL_NONE RBL: Sender listed at http://www.dnswl.org/, no trust [198.252.153.129 listed in list.dnswl.org] -0.0 SPF_HELO_PASS SPF: HELO matches SPF record -0.0 SPF_PASS SPF: sender matches SPF record -0.6 RP_MATCHES_RCVD Envelope sender domain matches handover relay domain 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid 0.0 T_DKIM_INVALID DKIM-Signature header exists but is not valid 0.0 UNPARSEABLE_RELAY Informational: message has unparseable relay lines 0.0 AWL AWL: Adjusted score from AWL reputation of From: address X-Headers-End: 1Z6SKG-0003TP-Mu Cc: Bitcoin Dev Subject: Re: [Bitcoin-development] F2Pool has enabled full replace-by-fee 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: Sat, 20 Jun 2015 23:37:29 -0000 -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 2015-06-20 18:20, Jorge Tim=C3=B3n wrote: > On Fri, Jun 19, 2015 at 6:42 PM, Eric Lombrozo =20 > wrote: >> If we want a non-repudiation mechanism in the protocol, we should=20 >> explicitly define one rather than relying on =E2=80=9Cprima facie=E2=80= =9D=20 >> assumptions. Otherwise, I would recommend not relying on the existence= =20 >> of a signed transaction as proof of intent to pay=E2=80=A6 >=20 > Non-repudiation can be built on top of the payment protocol layer. Non-repudiation is an intrinsic property of the ECDSA signatures which=20 Bitcoin uses - it's not a feature that needs to be built. There's no way to accidentally sign a transaction and accidentally=20 announce it publicly. There is no form of third-party error that can=20 result in a payee receiving an erroneous contract. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAEBAgAGBQJVhfkXAAoJECpf2nDq2eYjTwIP/ApsURTKJgAsSYb4/lvoujAE EhOUBfmb+WkrEceASWGgmXFfQBQW7c99sT46cA1HdCPLZMtYhZYPubtYRouSupfF vOfeKLsZsUXCadeLuzxP7av3PJhmvB1CO1Rv8CLBQptKUFkzyM3CypBviNTy33X6 KL2zyAMERpCVOejg7MSP3IUXIjgG1ayEm+mzwqi4j2Ms0h+oT6I/krAKV0J9SwJC PtLq/JRRriVtb2FE+biEqYRYfeOcZDYNbr+/y0HPtqqMxg6azNwx1z2aG5A+ziCd EvVqVJXU3TAINQdIvVS4ACF1J+ttMJ99r8VW0yN7o3fEckuRr3pyymx4I+XExSX5 ujflqadRGUS8ZenUPTPUbLfhARnmBwLM94L+xiQvIwiinxxtOKn3WW1oDv9FNp0l 99fkv9mbV5RnYlkMfWMn2AcwcBv7TSgpFGsZY4wBn/mgFh1PotGc2tA5kU79cz8R +F/k49+GwfgTPML7UhIGtjQjPreeqDyHNtv9XHtyp8LF5vO1na4oHSO6SeU4rIXH 4oIjw+Q6X/2L/fp8QNLB+onmKWobcl1Ec+0H+ZfQBujtew5BHFwcPwFmlC4tofiJ 7r8QjoPsRhJmaxm+MJOK/BIzhZErkMz26AQ/tfY4jtJCuLbEDdMLtC9hYVuiDHIb HBxxif83dALjX1Sgid66 =3Do9dG -----END PGP SIGNATURE-----