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| author | Bryan Bishop <kanzure@gmail.com> | 2016-02-25 19:34:24 -0600 |
|---|---|---|
| committer | bitcoindev <bitcoindev@gnusha.org> | 2016-02-26 01:34:25 +0000 |
| commit | 065f6f595f6aff5189b866bf40c6726464cb60c7 (patch) | |
| tree | c543697eacd60fee827904b79b02936876af82c8 | |
| parent | 10a8b62a2a6540f0866e2346067c6966fc5ae1d7 (diff) | |
| download | pi-bitcoindev-065f6f595f6aff5189b866bf40c6726464cb60c7.tar.gz pi-bitcoindev-065f6f595f6aff5189b866bf40c6726464cb60c7.zip | |
Re: [bitcoin-dev] SIGHASH_NOINPUT in Segregated Witness
| -rw-r--r-- | 12/936ef7034d9e9dbc1650e4a5ff4098c8b15a62 | 107 |
1 files changed, 107 insertions, 0 deletions
diff --git a/12/936ef7034d9e9dbc1650e4a5ff4098c8b15a62 b/12/936ef7034d9e9dbc1650e4a5ff4098c8b15a62 new file mode 100644 index 000000000..d90d741f7 --- /dev/null +++ b/12/936ef7034d9e9dbc1650e4a5ff4098c8b15a62 @@ -0,0 +1,107 @@ +Return-Path: <kanzure@gmail.com> +Received: from smtp1.linuxfoundation.org (smtp1.linux-foundation.org + [172.17.192.35]) + by mail.linuxfoundation.org (Postfix) with ESMTPS id E6D9EC70; + Fri, 26 Feb 2016 01:34:25 +0000 (UTC) +X-Greylist: whitelisted by SQLgrey-1.7.6 +X-Greylist: whitelisted by SQLgrey-1.7.6 +Received: from mail-oi0-f52.google.com (mail-oi0-f52.google.com + [209.85.218.52]) + by smtp1.linuxfoundation.org (Postfix) with ESMTPS id 6F06B20D; + Fri, 26 Feb 2016 01:34:25 +0000 (UTC) +Received: by mail-oi0-f52.google.com with SMTP id x21so52711213oix.2; + Thu, 25 Feb 2016 17:34:25 -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:to + :content-type; bh=xzpDFnWxVn+xs77Uvl06d9qhtN9gb0zlYwtYi1YrlmQ=; + b=rbTCcVysBLUbChPbUSF4JTWCFwCur4hbjeuqAMoxvseTMWYOTRWf6/Ov6Lvgqr/bGp + b0xDJygNFjEvATsR0W/ycl6y+p9j9/BQdcmMQUn2+kxKuhARAGo40V3wha+Jt2cf++VU + +LT8UxHG5u8kbl1LAa4KyBaLrezhYd5k/6hN6tztKN1MSYe+TjxBpmxG3a9s3ML6buJ2 + OIRdZ0g7GDVQcI98tSgbonAnA3shyFaSrN5QILnYSk+QCuEGiBW2cQmJBdFIYbTBjBUQ + uzyGOzXXhV/d0zbtMjYJ9F2Y8ewTFQZ5J7QRQRkNLLorMKxX62MlRUuVElUxCsmlmDh8 + P+wQ== +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:to:content-type; + bh=xzpDFnWxVn+xs77Uvl06d9qhtN9gb0zlYwtYi1YrlmQ=; + b=LpKkvcLiLLZAP2UqkcAsqTA8tZO57SNcll4b2NXnp2uKSRyLZKe5OGFJDJkshXEtel + JxvJtkSpdhxV5qQilCD5jh+tLxF/iJ4j3O+Ot1gBbtlb0L3WnbtRbDxTHCa8aWHHxEW8 + xY6eXxQuOftt8k1W2QJdsbUkcrJEvn+uPNik8R8UQxydsGuOqVkt9ejhJEFRb8+fZllH + PKi114IzXfhYD26n2ASNg2fSM1NH1RKs10aD6SZMayRNCCdlw8XF5LwGr/s/OZ+p+yJy + r2elL5Mq/meX0olFK7cy3Lxldf7LQACcMAAJygKPQ71s0k45wholI0oH77mEisSnwx/1 + K8/w== +X-Gm-Message-State: AG10YOR17V6demUKUd22nVpngnLfVLIQFEePmNu8sMCu2VnIe221IcRikofGlQeMyZJi9LiYibvqN/TbnLy8OQ== +MIME-Version: 1.0 +X-Received: by 10.202.172.149 with SMTP id v143mr37346032oie.121.1456450464779; + Thu, 25 Feb 2016 17:34:24 -0800 (PST) +Received: by 10.157.17.117 with HTTP; Thu, 25 Feb 2016 17:34:24 -0800 (PST) +In-Reply-To: <20160226010746.GB10295@lightning.network> +References: <20160226010746.GB10295@lightning.network> +Date: Thu, 25 Feb 2016 19:34:24 -0600 +Message-ID: <CABaSBayZ3+UjuzMSuOypiMzB7_5iE3ssD6Pfu3oA0Nnm5tWMPw@mail.gmail.com> +From: Bryan Bishop <kanzure@gmail.com> +To: Joseph Poon <joseph@lightning.network>, + Bitcoin Dev <bitcoin-dev@lists.linuxfoundation.org>, + lightning-dev <lightning-dev@lists.linuxfoundation.org>, + Bryan Bishop <kanzure@gmail.com> +Content-Type: text/plain; charset=UTF-8 +X-Spam-Status: No, score=-2.0 required=5.0 tests=BAYES_00,DKIM_SIGNED, + DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FROM 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: Fri, 26 Feb 2016 01:35:35 +0000 +Subject: Re: [bitcoin-dev] SIGHASH_NOINPUT in Segregated Witness +X-BeenThere: bitcoin-dev@lists.linuxfoundation.org +X-Mailman-Version: 2.1.12 +Precedence: list +List-Id: Bitcoin Development Discussion <bitcoin-dev.lists.linuxfoundation.org> +List-Unsubscribe: <https://lists.linuxfoundation.org/mailman/options/bitcoin-dev>, + <mailto:bitcoin-dev-request@lists.linuxfoundation.org?subject=unsubscribe> +List-Archive: <http://lists.linuxfoundation.org/pipermail/bitcoin-dev/> +List-Post: <mailto:bitcoin-dev@lists.linuxfoundation.org> +List-Help: <mailto:bitcoin-dev-request@lists.linuxfoundation.org?subject=help> +List-Subscribe: <https://lists.linuxfoundation.org/mailman/listinfo/bitcoin-dev>, + <mailto:bitcoin-dev-request@lists.linuxfoundation.org?subject=subscribe> +X-List-Received-Date: Fri, 26 Feb 2016 01:34:26 -0000 + +On Thu, Feb 25, 2016 at 7:07 PM, Joseph Poon wrote: +> This would be achieved using a SIGHASH flag, termed SIGHASH_NOINPUT. It +> does not include as part of the signature, the outpoint being spent +> (txid and index), nor the amount. It however, would include the spent +> outpoint's script as part of the signature. Note that this is just a + +Well if you are bothering to draft up a BIP about that SIGHASH flag, +then perhaps also consider some other SIGHASH flag types as well while +you are at it? + +Various proposed sighash types: +http://lists.linuxfoundation.org/pipermail/bitcoin-dev/2015-August/010759.html + +"Build your own nHashType" proposal draft: +https://github.com/scmorse/bitcoin-misc/blob/master/sighash_proposal.md + +jl2012's reply: +http://lists.linuxfoundation.org/pipermail/bitcoin-dev/2015-August/010779.html + +petertodd's reply about OP_CODESEPARATOR linked back to this thread +regarding "Build your own nHashType": +http://lists.linuxfoundation.org/pipermail/bitcoin-dev/2015-April/007771.html +http://lists.linuxfoundation.org/pipermail/bitcoin-dev/2015-April/007802.html +http://gnusha.org/bitcoin-wizards/2014-12-09.log + +((That particular thread had other replies which can be viewed here: +http://lists.linuxfoundation.org/pipermail/bitcoin-dev/2015-April/thread.html +)) + +Also, there was a draft implementation of SIGHASH_NOINPUT: +https://github.com/Roasbeef/bitcoin/commit/4b3c3f1baf7985208ceb6887261ee150ab6e3328 +https://github.com/Roasbeef/btcd/commit/67830e506fa135d5239177340918cea39909e6a4 + +FWIW there was some concern about replay using SIGHAHS_NOINPUT or something: +http://gnusha.org/bitcoin-wizards/2015-04-07.log + +- Bryan +http://heybryan.org/ +1 512 203 0507 + |