Return-Path: Received: from smtp1.linuxfoundation.org (smtp1.linux-foundation.org [172.17.192.35]) by mail.linuxfoundation.org (Postfix) with ESMTPS id D4FE9E68 for ; Wed, 24 Jan 2018 10:31:37 +0000 (UTC) X-Greylist: whitelisted by SQLgrey-1.7.6 Received: from mail-vk0-f44.google.com (mail-vk0-f44.google.com [209.85.213.44]) by smtp1.linuxfoundation.org (Postfix) with ESMTPS id 70C33149 for ; Wed, 24 Jan 2018 10:31:37 +0000 (UTC) Received: by mail-vk0-f44.google.com with SMTP id g186so2201877vkd.8 for ; Wed, 24 Jan 2018 02:31:37 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:sender:in-reply-to:references:from:date:message-id :subject:to:cc; bh=gHEOCcy5F8uTdODeilCZDykEiOC/hbNpHzKCjaJKFCQ=; b=K1wa4zPaUbivm0qBqGbvQekIlMbnzUAgq4QPKZFMT1a2BKZYMxmUGtRqK7BILMUIfw ZTbKsj5UgqAw4q/n2VuLzGZF0+NHDUouPhKTzwz3g72HjioPG9lBNswyfcuxy3klxPrr jLchSSNJu/AyjxBZmHLJ12UzdzDJlrGHnFI8uvhZoLLEwpSkRuS0Kh7ylOnsTux/VzzI GHyF1tLilT3Fpy2atcJsWi3R/Mlr2NyPWSRBxEWTBo9oSyHVGe9FF3DCTit8TkM7NuD0 6wqJYDdg0JX/aO/xa7iXmJMO0e2x59IjVdeowUURxEMxUrh4LK5asYeoAhg8I413E+jW vmdA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:sender:in-reply-to:references:from :date:message-id:subject:to:cc; bh=gHEOCcy5F8uTdODeilCZDykEiOC/hbNpHzKCjaJKFCQ=; b=Y+sA/elbdQIXwAOCoSfeWvnlskc3Xj+VBm/pjNHcNbuo0qzf/Hmefc62p2h8tQnPot ROqfyloIg+G+yYQuFYNn0/N1rTxKCSedMqXK7wfaEG/ZlQQ6ZH6euHa2sYIXvsUM5XJ6 MBYSLMaksDWBsjxVU8MbZtFMYDt62rsOE6Y1AsRngy0d6EOWwrn5igod7PEZgKUwiYtS qbvVCl1bnRxTniD1urlT2Ikogg5DcNgur9Z8ICKoSxqr85sYzmhe5RXlVFzPTzCUeOb8 4xmJcSrl1xdP3aAplZ1xmd9Zl0UC617HQpRwNKBjTemYqMIg/4ZCh3SRZtln3GOiSD9L zatA== X-Gm-Message-State: AKwxytfexGJwgaEbOy09h+FkGyW5j+B/KvauCsBGaeD+os4MyevGS2rJ ZdXOpJUgn12oF/ad4zC/Pg5pk/kWe6MpJi9AMQs= X-Google-Smtp-Source: AH8x226BA8j4AtCZCtFAvVKpOPRbsml4uWCCuDKH++Ya+yCyfpcVmoZickhEg24TaJy1F5hjR/us/DiI6IAjX236xqA= X-Received: by 10.31.168.20 with SMTP id r20mr3989218vke.149.1516789896604; Wed, 24 Jan 2018 02:31:36 -0800 (PST) MIME-Version: 1.0 Sender: gmaxwell@gmail.com Received: by 10.103.78.155 with HTTP; Wed, 24 Jan 2018 02:31:35 -0800 (PST) In-Reply-To: <41d8ff42-106f-45b9-cc70-507982c7336b@gmail.com> References: <41d8ff42-106f-45b9-cc70-507982c7336b@gmail.com> From: Gregory Maxwell Date: Wed, 24 Jan 2018 10:31:35 +0000 X-Google-Sender-Auth: OozYuGJG5RTuAUJPTajc57P2sJo Message-ID: To: Aymeric Vitte Content-Type: text/plain; charset="UTF-8" X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, FREEMAIL_FROM, 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 Cc: Bitcoin Protocol Discussion , =?UTF-8?B?0JDRgNGC0ZHQvCDQm9C40YLQstC40L3QvtCy0LjRhw==?= Subject: Re: [bitcoin-dev] Why is deriving public key from the signature not used in Segwit? 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: Wed, 24 Jan 2018 10:31:37 -0000 On Wed, Jan 24, 2018 at 10:24 AM, Aymeric Vitte wrote: > out the fact that pubkey is there now even for standard p2pkh > transactions and it was not the case some time ago > > But I never got any answer regarding what motivated this change > (compared to the previous behavior) and when, so whether I am missing > something obvious, whether nobody wants to answer No such behaviour ever existed, you are simply mistaken.