Return-Path: Received: from smtp1.linuxfoundation.org (smtp1.linux-foundation.org [172.17.192.35]) by mail.linuxfoundation.org (Postfix) with ESMTPS id 9755BB4C for ; Wed, 26 Apr 2017 21:34:51 +0000 (UTC) X-Greylist: whitelisted by SQLgrey-1.7.6 Received: from mail-vk0-f46.google.com (mail-vk0-f46.google.com [209.85.213.46]) by smtp1.linuxfoundation.org (Postfix) with ESMTPS id 29AA5131 for ; Wed, 26 Apr 2017 21:34:51 +0000 (UTC) Received: by mail-vk0-f46.google.com with SMTP id 198so7793946vkk.2 for ; Wed, 26 Apr 2017 14:34:51 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=blockstream-io.20150623.gappssmtp.com; s=20150623; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :cc; bh=VxMfnzZmm5tjt2/JQ6lMhNqumvlOkN3AGptcsiytPuU=; b=rpBhleZXmLu67EoCXsvSnOIurlA1+D39tt6xztbepKejpSLLalVP0ZrHSiW8zaflzB SVWhPKlkTjz0qm9Lkut23XkPCaYC3DNxpzOvpjJRmosTxuK0y7NqVBRMWdp2jXxyzWjv u8nQLQmZovCkB418SWsM/ousOgkOUZG1zX6g2iq8snLAIsyGNxy1ID0j96w9QD/733tw AS0zxNLNTBLGRBFJntZLsHVhtt+/U1PqCCEFemfbbRTAWOa2lcrfYSLNv/bblpHRdCf7 biVce/z7ozwQZpm98Pbncds3lBOQK7/Xz/PLqnIqM9mDt7lF6t/1gNar7QT+g1SfRLiN gcJg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:in-reply-to:references:from:date :message-id:subject:to:cc; bh=VxMfnzZmm5tjt2/JQ6lMhNqumvlOkN3AGptcsiytPuU=; b=Oja5lnKP9X9IUyvmBAGcLhOvwNWy273IDzS8yVw9/mEMNUkLsY0070GNiY583t23HR ByG1dncobYlRaTNgARvooERqjJ68pbtAn28skOGvqz6Y5E4i+1GgBo5bEQjaO3c57Do9 df9EzxFNYu2CQjZ4uzi4xKvocuF+CbCqrcCZWaO9J4AxIXs4BjQ/NuF89p+HERnp0Zsk BbZdXmWwrDxj5ZEAEkrtoCxegqXYACLRxh2ig4tRRNzGFqk8gf/2yp33ermp0DQUhKjJ kvPB5F4bcp71MNG6rSFuDKucIDwgam+hgT3/9c8QPO6uFAofkVqJ7Kw+XJz2i+eRC3+a Gf/A== X-Gm-Message-State: AN3rC/6hdi9mg94JaQsGFQP2vkmcKlk4FcrLD88Yz34t3o7k5d6mEj+y IZn8xxjyAM1NFwdczumeWDuNoq9X+VlQwiE= X-Received: by 10.31.16.3 with SMTP id g3mr1048812vki.85.1493242490181; Wed, 26 Apr 2017 14:34:50 -0700 (PDT) MIME-Version: 1.0 Received: by 10.176.77.231 with HTTP; Wed, 26 Apr 2017 14:34:29 -0700 (PDT) In-Reply-To: <201704262001.10933.luke@dashjr.org> References: <201704202028.53113.luke@dashjr.org> <06E90C6D-8B4C-40A7-8807-8811A27AE401@xbt.hk> <201704262001.10933.luke@dashjr.org> From: "Russell O'Connor" Date: Wed, 26 Apr 2017 17:34:29 -0400 Message-ID: To: Luke Dashjr Content-Type: multipart/alternative; boundary=001a114364f630f0c1054e189cfd X-Spam-Status: No, score=-1.4 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, HTML_MESSAGE, RCVD_IN_DNSWL_NONE, RCVD_IN_SORBS_SPAM autolearn=no version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on smtp1.linux-foundation.org Cc: bitcoin-dev Subject: Re: [bitcoin-dev] Segwit v2 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, 26 Apr 2017 21:34:51 -0000 --001a114364f630f0c1054e189cfd Content-Type: text/plain; charset=UTF-8 On Wed, Apr 26, 2017 at 4:01 PM, Luke Dashjr via bitcoin-dev < bitcoin-dev@lists.linuxfoundation.org> wrote: > There are things scriptSig can do that witness cannot today - specifically > add > additional conditions under the signature. We can always obsolete scriptSig > later, after segwit has provided an alternative way to do this. > I'm not sure what you are referring to here. The data in the scriptSigs are never signed. The scriptSigs are always stripped from the transaction before the sigHash is made. --001a114364f630f0c1054e189cfd Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
On Wed, Apr 26, 2017 at 4:01 PM, Luke Dashjr via bitcoin-d= ev <bitcoin-dev@lists.linuxfoundation.org> wrote:
There are things scriptSig can do that witness cannot today - specif= ically add
additional conditions under the signature. We can always obsolete scriptSig=
later, after segwit has provided an alternative way to do this.

I'm not sure what you are referring to here.= =C2=A0 The data in the scriptSigs are never signed.=C2=A0 The scriptSigs ar= e always stripped from the transaction before the sigHash is made.
=C2= =A0
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