From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from smtp1.linuxfoundation.org (smtp1.linux-foundation.org [172.17.192.35]) by mail.linuxfoundation.org (Postfix) with ESMTPS id 0148B954 for ; Fri, 2 Sep 2016 05:47:21 +0000 (UTC) X-Greylist: from auto-whitelisted by SQLgrey-1.7.6 Received: from outmail148102.authsmtp.net (outmail148102.authsmtp.net [62.13.148.102]) by smtp1.linuxfoundation.org (Postfix) with ESMTP id 33D7810E for ; Fri, 2 Sep 2016 05:47:19 +0000 (UTC) Received: from mail-c232.authsmtp.com (mail-c232.authsmtp.com [62.13.128.232]) by punt20.authsmtp.com (8.14.2/8.14.2/) with ESMTP id u825lIKo086234; Fri, 2 Sep 2016 06:47:18 +0100 (BST) Received: from petertodd.org (ec2-52-5-185-120.compute-1.amazonaws.com [52.5.185.120]) (authenticated bits=0) by mail.authsmtp.com (8.14.2/8.14.2/) with ESMTP id u825lFkr059716 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Fri, 2 Sep 2016 06:47:16 +0100 (BST) Received: from [127.0.0.1] (localhost [127.0.0.1]) by petertodd.org (Postfix) with ESMTPSA id 5F8FC400B1; Fri, 2 Sep 2016 05:43:53 +0000 (UTC) Received: by localhost (Postfix, from userid 1000) id 8793520528; Fri, 2 Sep 2016 05:47:14 +0000 (UTC) Date: Fri, 2 Sep 2016 05:47:14 +0000 From: Peter Todd To: Johnson Lau , Bitcoin Protocol Discussion Message-ID: <20160902054714.GA1685@fedora-21-dvm> References: <1317364559.64256.1472791258452@privateemail.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="mP3DRpeJDSE+ciuQ" Content-Disposition: inline In-Reply-To: <1317364559.64256.1472791258452@privateemail.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-Server-Quench: b4be5950-70d0-11e6-829e-00151795d556 X-AuthReport-Spam: If SPAM / abuse - report it at: http://www.authsmtp.com/abuse X-AuthRoute: OCd2Yg0TA1ZNQRgX IjsJECJaVQIpKltL GxAVKBZePFsRUQkR aAdMdgAUC1AEAgsB AmAbW1JeVFp7WGU7 bghPaBtcak9QXgdq T0pMXVMcUQ1qBEB3 XVweVxB1dgMIfn9w ZQgwWiIOWU1/dVt6 QhpUCGwHMGF9YGIW BV1YdwJRcQRDe0tA b1YxNiYHcQ5VPz4z GA41ejw8IwAXDilK CissFQBabUsCGj86 SFgdHCkvVUEYQiAi Zwc6I1UfVEsVP0A/ N0dDEVcRNxsfAwdf G0BREUcA X-Authentic-SMTP: 61633532353630.1037:706 X-AuthFastPath: 0 (Was 255) X-AuthSMTP-Origin: 52.5.185.120/25 X-AuthVirus-Status: No virus detected - but ensure you scan with your own anti-virus system. X-Spam-Status: No, score=-2.6 required=5.0 tests=BAYES_00,RCVD_IN_DNSWL_LOW autolearn=ham version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on smtp1.linux-foundation.org Subject: Re: [bitcoin-dev] New BIP: Dealing with dummy stack element malleability X-BeenThere: bitcoin-dev@lists.linuxfoundation.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: Bitcoin Protocol Discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 02 Sep 2016 05:47:21 -0000 --mP3DRpeJDSE+ciuQ Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Fri, Sep 02, 2016 at 12:40:58AM -0400, Johnson Lau via bitcoin-dev wrote: > Deployment >=20 > This BIP will be deployed by "version bits" BIP9 using the same parameter= s for BIP141 and BIP143, with the name "segwit" and using bit 1. >=20 > For Bitcoin mainnet, the BIP9 starttime is midnight TBD UTC (Epoch timest= amp TBD) and BIP9 timeout is midnight TBD UTC (Epoch timestamp TBD). >=20 > For Bitcoin testnet, the BIP9 starttime is midnight 1 May 2016 UTC (Epoch= timestamp 1462060800) and BIP9 timeout is midnight 1 May 2017 UTC (Epoch t= imestamp 1493596800). >=20 > Compatibility >=20 > The reference client has produced compatible signatures from the beginnin= g, and the NULLDUMMY rule has been enforced as relay policy by the referenc= e client since v0.10.0. There has been no transactions violating the requir= ement being added to the chain since at least August 2015. In addition, eve= ry non-compliant signature can trivially be converted into a compliant one,= so there is no loss of functionality by this requirement. This should say "for all scriptPubKey types in actual use, non-compliant signatures can trivially be converted into compliant ones" You can of course create a scriptPubKey where that's not possible, but fortunately no-one appears to do that. Also, as original author of NULLDUMMY, thanks for finally making it into a soft-fork! --=20 https://petertodd.org 'peter'[:-1]@petertodd.org --mP3DRpeJDSE+ciuQ Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- iQEcBAEBCAAGBQJXyRJfAAoJEGOZARBE6K+yRJAH/0ffhDA5HGGQs20pHOlocQPS 7Jot5/SJVelIocLuCosNGhZAaUkNRjgEK/bNEz3aC8MENJEG3fSXfie7AYql1aS3 a1FOD+vszP6gWQBvu7Zyty1bTqrXMNfrW2kt1/EFeiIr55AWzeyPhJoJ9j3qOkhx Qx2kzFXYm9Fe6jifM7jGlRoQeV+mH7oLUyyhfGEb7F8BlG3zooHvHV2UPtr6EGex msKGqKqFZTuochsOo2Q9bUb2t6eSm214fCN4mNe9IqqqzOaxUY1d/yWCqEq+e+qM bKcAVYLfcJKcTAiUTQ1DDEQJh3KN1qEf7xyPvz7m5rxHqRWZXW36Y5JtfnlRpQ8= =rFAv -----END PGP SIGNATURE----- --mP3DRpeJDSE+ciuQ--