Return-Path: Received: from smtp1.linuxfoundation.org (smtp1.linux-foundation.org [172.17.192.35]) by mail.linuxfoundation.org (Postfix) with ESMTPS id E1262E51 for ; Fri, 12 Feb 2016 10:05:09 +0000 (UTC) X-Greylist: whitelisted by SQLgrey-1.7.6 Received: from mail-io0-f173.google.com (mail-io0-f173.google.com [209.85.223.173]) by smtp1.linuxfoundation.org (Postfix) with ESMTPS id C5D56163 for ; Fri, 12 Feb 2016 10:05:08 +0000 (UTC) Received: by mail-io0-f173.google.com with SMTP id 9so86981158iom.1 for ; Fri, 12 Feb 2016 02:05:08 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:cc :content-type; bh=l2pGj1a/TRGedOi54qas2F6XuozVyaaxmtRaS9VJbag=; b=uJjUR0cvzHzGY7PCVSY4Q8QV43fevuK0+mskYwjVLxEm3whQ6BW5l9ioq9Eisj71v0 jfl/P8lrsu/nuhFdjniqsm3hfa1cYwnlWp5623Wh01flVabMbXPQlpJ/Vchyrsu2nHIm JP/FkNEc2PqkVwajKH1NsB4/DhXX/wdrb/95WBaYJnLe2VLfll4yGhFnF+Md9cQYJSyh ryU37VvxjaB+SJPWM6D6+Yolh2bYJLqcuZV+vmUeJOkBEo4L4e9/zHG3ZFyiEl1/Zn73 6iouWemSaPSvyT/W0ZbdltIFmtqXr9X7Ot11lLPGWdZIanisL86vXpRreYJss1iU9ye3 whJA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:in-reply-to:references:date :message-id:subject:from:cc:content-type; bh=l2pGj1a/TRGedOi54qas2F6XuozVyaaxmtRaS9VJbag=; b=R7iUj2sbYSl9FAJn+Ued1MG8Em/5DKwKBBxRvy9ToXvxelas7LqFdlwAwIpguIEFzk Ji51A/PCgDKUU9VF/Iz1bz9/dSP78joh+O1nd8nsfpnE/uuS8fxfrC+Oj/vaujOfynDU kSzOYsSzFlMTBpfCgke7hSwa9D7FRf6G/eHoaHGwgp754fIuUjGyA67vPisl9cTOMip2 Sg8UEQi4oCOD3XzsaQZQtjPzwB60zJsLj4J/nH6qf6F55Ylqzz3yI7OHd1vbgk3WYHxc nEirOzN8gVneURy1qfgtq8z/SEG/3nb3rOMZCgRuc1waMuRR298y/pfib6MAOJykEG9H wtCA== X-Gm-Message-State: AG10YOR/NzPuZJNEO3prkjuYbmT6VDbrOVOT7fOqgvE9A/1h1pDFXxgcIvWgZCbEVLrZ5AG/5s0kHvqx8kk7OA== MIME-Version: 1.0 X-Received: by 10.107.17.147 with SMTP id 19mr2253673ior.109.1455271508216; Fri, 12 Feb 2016 02:05:08 -0800 (PST) Received: by 10.79.77.65 with HTTP; Fri, 12 Feb 2016 02:05:08 -0800 (PST) In-Reply-To: <23e401d16552$996546d0$cc2fd470$@xbt.hk> References: <23e401d16552$996546d0$cc2fd470$@xbt.hk> Date: Fri, 12 Feb 2016 10:05:08 +0000 Message-ID: From: Tier Nolan Cc: Bitcoin Dev Content-Type: multipart/alternative; boundary=001a113ff3264c9944052b8fcd64 X-Spam-Status: No, score=-1.7 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FROM,HTML_MESSAGE,MISSING_HEADERS, RCVD_IN_DNSWL_LOW autolearn=no version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on smtp1.linux-foundation.org Subject: Re: [bitcoin-dev] BIP CPRKV: Check private key verify X-BeenThere: bitcoin-dev@lists.linuxfoundation.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: Bitcoin Development Discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 12 Feb 2016 10:05:10 -0000 --001a113ff3264c9944052b8fcd64 Content-Type: text/plain; charset=UTF-8 On Fri, Feb 12, 2016 at 5:02 AM, wrote: > Seems it could be done without any new opcode: > The assumption was that the altcoin would only accept standard output scripts. Alice's payment in step 2 pays to a non-standard script. This is an improvement over the cut and choose, but it will only work for coins which allow non-standard scripts (type 2 in the BIP). I guess I was to focused on maintaining standard scripts on the altcoin. --001a113ff3264c9944052b8fcd64 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
On F= ri, Feb 12, 2016 at 5:02 AM, <jl2012@xbt.hk> wrote:
<= div>

Seems it could be done without an= y new opcode:


The as= sumption was that the altcoin would only accept standard output scripts.=C2= =A0 Alice's payment in step 2 pays to a non-standard script.

This is an improvement over the cut and choose, but it will only wo= rk for coins which allow non-standard scripts (type 2 in the BIP).=C2=A0
I guess I was to focused on maintaining standard scripts on the altco= in.
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