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 BB59BDC8 for ; Thu, 9 May 2019 16:57:10 +0000 (UTC) X-Greylist: from auto-whitelisted by SQLgrey-1.7.6 Received: from sender-of-o53.zoho.com (sender-of-o53.zoho.com [135.84.80.218]) by smtp1.linuxfoundation.org (Postfix) with ESMTPS id 28E91709 for ; Thu, 9 May 2019 16:57:09 +0000 (UTC) ARC-Seal: i=1; a=rsa-sha256; t=1557421024; cv=none; d=zoho.com; s=zohoarc; b=N9mjP76uz9xr+RH+kV46IYSxglF/w+eir5s6d+bs4Np2BC7FynH4NwCLRg+34dHt5uZEgE/ztcBz6qPXQGpkc2CL+Hr5FZL9iPgoK900MK6veVFD+t7Crv7W7yV/4NGZ/ZeMnBcpE3x580T0fVC+HmzN6noR5b/zUQGLg9RP2zY= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zoho.com; s=zohoarc; t=1557421024; h=Content-Type:Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:MIME-Version:Message-ID:References:Subject:To:ARC-Authentication-Results; bh=WztDf14cueC3l8xXqJ4s5c+g/J8fm2edcbPMMs3iJyg=; b=ks/4pSNComrXNBsVwsSmNT2KBK68SDfq43Kc+xedhMyaqMpbLf7XUjgL34eTj26tPkWZb0vkTRGKb1gMMFf7bXPzMw4GzhaHXcohuZUGvU74Vox0EKZFdJx8OjUFa7QQFjeYKLjjICT07yEi9uIv3NgjGO7VHfuvBvMf/qG478I= ARC-Authentication-Results: i=1; mx.zoho.com; dkim=pass header.i=xbt.hk; spf=pass smtp.mailfrom=jl2012@xbt.hk; dmarc=pass header.from= header.from= Received: from [192.168.1.2] (1-64-133-115.static.netvigator.com [1.64.133.115]) by mx.zohomail.com with SMTPS id 1557421022705726.5921496575028; Thu, 9 May 2019 09:57:02 -0700 (PDT) Content-Type: text/plain; charset=utf-8 Mime-Version: 1.0 (Mac OS X Mail 12.4 \(3445.104.8\)) From: Johnson Lau In-Reply-To: Date: Fri, 10 May 2019 00:56:57 +0800 Content-Transfer-Encoding: quoted-printable Message-Id: References: <201905062017.11396.luke@dashjr.org> To: ZmnSCPxj , bitcoin-dev X-Mailer: Apple Mail (2.3445.104.8) X-ZohoMailClient: External X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00,RCVD_IN_DNSWL_NONE autolearn=ham version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on smtp1.linux-foundation.org X-Mailman-Approved-At: Thu, 09 May 2019 17:31:32 +0000 Cc: Pieter Wuille Subject: Re: [bitcoin-dev] Taproot proposal 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: Thu, 09 May 2019 16:57:10 -0000 >=20 >>=20 >> Some way to sign an additional script (not committed to by the = witness >> program) seems like it could be a trivial addition. >=20 > It seems to me the annex can be used for this, by having it contain = both the script and the signature somehow concatenated. This is not possible since the whole annex is signed. It is possible if = the signed =E2=80=9Cscript=E2=80=9D does not require further input, like = per-input lock-time, relative lock-time, check block hash >=20 > Regards, > ZmnSCPxj > _______________________________________________ > bitcoin-dev mailing list > bitcoin-dev@lists.linuxfoundation.org > https://lists.linuxfoundation.org/mailman/listinfo/bitcoin-dev