summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorPeter Todd <pete@petertodd.org>2017-05-22 09:33:35 -0400
committerbitcoindev <bitcoindev@gnusha.org>2017-05-22 13:33:44 +0000
commitc41beaa1d60c5f06ee45a1c90c8c62ee3b7dddcd (patch)
tree073c987c4685c8bee6fdda1d86ef3803e3604d8b
parent2413918c00e0b43f31ca62dcbdd1b37ed0fa1874 (diff)
downloadpi-bitcoindev-c41beaa1d60c5f06ee45a1c90c8c62ee3b7dddcd.tar.gz
pi-bitcoindev-c41beaa1d60c5f06ee45a1c90c8c62ee3b7dddcd.zip
Re: [bitcoin-dev] Drivechain -- Request for Discussion
-rw-r--r--a5/c571e3743344ea63738962d6f8094513abf6a2133
1 files changed, 133 insertions, 0 deletions
diff --git a/a5/c571e3743344ea63738962d6f8094513abf6a2 b/a5/c571e3743344ea63738962d6f8094513abf6a2
new file mode 100644
index 000000000..b6a3f5580
--- /dev/null
+++ b/a5/c571e3743344ea63738962d6f8094513abf6a2
@@ -0,0 +1,133 @@
+Return-Path: <pete@petertodd.org>
+Received: from smtp1.linuxfoundation.org (smtp1.linux-foundation.org
+ [172.17.192.35])
+ by mail.linuxfoundation.org (Postfix) with ESMTPS id 3F7BAB3F
+ for <bitcoin-dev@lists.linuxfoundation.org>;
+ Mon, 22 May 2017 13:33:44 +0000 (UTC)
+X-Greylist: from auto-whitelisted by SQLgrey-1.7.6
+Received: from outmail148161.authsmtp.com (outmail148161.authsmtp.com
+ [62.13.148.161])
+ by smtp1.linuxfoundation.org (Postfix) with ESMTPS id 424031CE
+ for <bitcoin-dev@lists.linuxfoundation.org>;
+ Mon, 22 May 2017 13:33:42 +0000 (UTC)
+Received: from mail-c232.authsmtp.com (mail-c232.authsmtp.com [62.13.128.232])
+ by punt24.authsmtp.com (8.14.2/8.14.2/) with ESMTP id v4MDXeUS075910;
+ Mon, 22 May 2017 14:33:40 +0100 (BST)
+Received: from petertodd.org (ec2-52-5-185-120.compute-1.amazonaws.com
+ [52.5.185.120]) (authenticated bits=0)
+ by mail.authsmtp.com (8.14.2/8.14.2/) with ESMTP id v4MDXcCO024377
+ (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO);
+ Mon, 22 May 2017 14:33:39 +0100 (BST)
+Received: from [127.0.0.1] (localhost [127.0.0.1])
+ by petertodd.org (Postfix) with ESMTPSA id DD423400DE;
+ Mon, 22 May 2017 13:33:37 +0000 (UTC)
+Received: by localhost (Postfix, from userid 1000)
+ id 142E420101; Mon, 22 May 2017 09:33:35 -0400 (EDT)
+Date: Mon, 22 May 2017 09:33:35 -0400
+From: Peter Todd <pete@petertodd.org>
+To: Paul Sztorc <truthcoin@gmail.com>
+Message-ID: <20170522133335.GA17194@fedora-23-dvm>
+References: <24f2b447-a237-45eb-ef9f-1a62533fad5c@gmail.com>
+MIME-Version: 1.0
+Content-Type: multipart/signed; micalg=pgp-sha256;
+ protocol="application/pgp-signature"; boundary="gKMricLos+KVdGMg"
+Content-Disposition: inline
+In-Reply-To: <24f2b447-a237-45eb-ef9f-1a62533fad5c@gmail.com>
+User-Agent: Mutt/1.5.23 (2014-03-12)
+X-Server-Quench: 43caff52-3ef3-11e7-829f-00151795d556
+X-AuthReport-Spam: If SPAM / abuse - report it at:
+ http://www.authsmtp.com/abuse
+X-AuthRoute: OCd2Yg0TA1ZNQRgX IjsJECJaVQIpKltL GxAVKBZePFsRUQkR
+ aAdMdAAUFVQNAgsB AmEbWlBeU157Wmo7 bghPaBtcak9QXgdq
+ T0pMXVMcUgEVdXRS dWEeUB1xcAIIfnh1 ZwhmXSMKChJ/d1t+
+ FxhXCGwHMGB9YGIW Bl1YdwJRcQRDe0tA b1YxNiYHcQ5VPz4z
+ GA41ejw8IwAXBD5U XAwGLVsTRw5OW3YG SgkfEC4zVUMCXW0f
+ LgctN0UHHUEXWgAA
+X-Authentic-SMTP: 61633532353630.1037:706
+X-AuthFastPath: 0 (Was 255)
+X-AuthSMTP-Origin: 52.5.185.120/25
+X-AuthVirus-Status: No virus detected - but ensure you scan with your own
+ anti-virus system.
+X-Spam-Status: No, score=-2.6 required=5.0 tests=BAYES_00,RCVD_IN_DNSWL_LOW
+ autolearn=ham version=3.3.1
+X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on
+ smtp1.linux-foundation.org
+Cc: Bitcoin Dev <bitcoin-dev@lists.linuxfoundation.org>
+Subject: Re: [bitcoin-dev] Drivechain -- Request for Discussion
+X-BeenThere: bitcoin-dev@lists.linuxfoundation.org
+X-Mailman-Version: 2.1.12
+Precedence: list
+List-Id: Bitcoin Protocol 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: Mon, 22 May 2017 13:33:44 -0000
+
+
+--gKMricLos+KVdGMg
+Content-Type: text/plain; charset=utf-8
+Content-Disposition: inline
+Content-Transfer-Encoding: quoted-printable
+
+On Mon, May 22, 2017 at 02:17:07AM -0400, Paul Sztorc via bitcoin-dev wrote:
+> This work includes the relatively new concept of "Blind Merged Mining"
+> [2] which I developed in January to allow SHA256^2 miners to merge-mine
+> these "drivechains", even if these miners aren't running the actual
+> sidechain software. The goal is to prevent sidechains from affecting the
+> levelness of the mining "playing field". BMM is conceptually similar to
+> ZooKeeV [3] which Peter Todd sketched out in mid-2013. BMM is not
+> required for drivechain, but it would address some of the last remaining
+> concerns.
+
+Thanks for the credit, although I think the security properties of what you=
+'re
+proposing are very different - and much weaker - than what I proposed in
+Zookeyv.
+
+As you state in [2] "if miners never validate sidechains at all, whoever bi=
+ds
+the most for the chain (on a continuous basis), can spam a 3-month long str=
+eam
+of invalid headers, and then withdraw all of the coins deposited to the
+sidechain." and "Since the mining is blind, and the sidechain-withdrawal
+security-level is SPV, miners who remain blind forever have no way of telli=
+ng
+who =E2=80=9Cshould=E2=80=9D really get the funds."
+
+Finally, you suggest that in this event, miners *do* have to upgrade to a f=
+ull
+node, an expensive and time-consuming operation (and one that may be imposs=
+ible
+for some miners if necessary data isn't available).
+
+It's unclear to me what the incentive is for miners to do any of this. Could
+you explain in more detail what that incentive is?
+
+
+> [2] http://www.truthcoin.info/blog/blind-merged-mining/
+> [3] https://s3.amazonaws.com/peter.todd/bitcoin-wizards-13-10-17.log
+
+--=20
+https://petertodd.org 'peter'[:-1]@petertodd.org
+
+--gKMricLos+KVdGMg
+Content-Type: application/pgp-signature; name="signature.asc"
+Content-Description: Digital signature
+
+-----BEGIN PGP SIGNATURE-----
+
+iQEcBAEBCAAGBQJZIuitAAoJECSBQD2l8JH7JvMH/iapcbd5y+yV7S2FcfrzBpvg
+2OUVrivXwrlDRPO51dqsW0IiUt2eX+zqVvL7pX7zYxWh5kPshzz4g5OmEI6qA6jA
+VCYL230ieRkCg1WUGTC6xChK9I0GGvsxUvYpMpSHhXYMYdwhMrj/paVIxoMQ1eH0
+7jHMwZbsSvfXsUShAg8MCprGsF4/8XPLCnXh/jrLOhCvYzhxPpSKcv9xtSBe78gS
+HKiyn7ccKPskTuq3xT7x1j9gOBxULmIXESp62G1YziqQdTMAEp3+cdLUiDjySdcT
+r6jpmCSToG/xnOpHhFF4LiF0NRTb4/WqufB6drXpFdwGTmJpy128pTC8ohy/5nM=
+=p8L2
+-----END PGP SIGNATURE-----
+
+--gKMricLos+KVdGMg--
+