diff options
| author | Jonathan Toomim <j@toom.im> | 2017-04-05 23:24:04 -0700 |
|---|---|---|
| committer | bitcoindev <bitcoindev@gnusha.org> | 2017-04-06 06:24:09 +0000 |
| commit | 1ce708e3e2dbf0ac8e63655cef920d283351070f (patch) | |
| tree | 4312f13c3506fa84a77424faa703e6405332311b /7b | |
| parent | e50ee9a297a28e96dee0a27078fc2af650539ec3 (diff) | |
| download | pi-bitcoindev-1ce708e3e2dbf0ac8e63655cef920d283351070f.tar.gz pi-bitcoindev-1ce708e3e2dbf0ac8e63655cef920d283351070f.zip | |
Re: [bitcoin-dev] BIP proposal: Inhibiting a covert attack on the Bitcoin POW function
Diffstat (limited to '7b')
| -rw-r--r-- | 7b/6ef1f4a43ac079e20656a55ab079b678d1c630 | 112 |
1 files changed, 112 insertions, 0 deletions
diff --git a/7b/6ef1f4a43ac079e20656a55ab079b678d1c630 b/7b/6ef1f4a43ac079e20656a55ab079b678d1c630 new file mode 100644 index 000000000..e7ad8245f --- /dev/null +++ b/7b/6ef1f4a43ac079e20656a55ab079b678d1c630 @@ -0,0 +1,112 @@ +Return-Path: <j@toom.im> +Received: from smtp1.linuxfoundation.org (smtp1.linux-foundation.org + [172.17.192.35]) + by mail.linuxfoundation.org (Postfix) with ESMTPS id 196CB6C + for <bitcoin-dev@lists.linuxfoundation.org>; + Thu, 6 Apr 2017 06:24:09 +0000 (UTC) +X-Greylist: from auto-whitelisted by SQLgrey-1.7.6 +Received: from c.mail.sonic.net (c.mail.sonic.net [64.142.111.80]) + by smtp1.linuxfoundation.org (Postfix) with ESMTPS id A00FB101 + for <bitcoin-dev@lists.linuxfoundation.org>; + Thu, 6 Apr 2017 06:24:08 +0000 (UTC) +Received: from [192.168.1.190] (63.135.62.197.nwinternet.com [63.135.62.197] + (may be forged)) (authenticated bits=0) + by c.mail.sonic.net (8.15.1/8.15.1) with ESMTPSA id v366O5ui018984 + (version=TLSv1 cipher=DHE-RSA-AES128-SHA bits=128 verify=NOT) + for <bitcoin-dev@lists.linuxfoundation.org>; + Wed, 5 Apr 2017 23:24:06 -0700 +Content-Type: multipart/signed; + boundary="Apple-Mail=_86F49DC1-34C4-49E2-83B0-0BFAC4802FA9"; + protocol="application/pgp-signature"; micalg=pgp-sha512 +Mime-Version: 1.0 (Mac OS X Mail 9.2 \(3112\)) +X-Pgp-Agent: GPGMail +From: Jonathan Toomim <j@toom.im> +In-Reply-To: <CAFVRnyrqiNY_JOqhv2ysm2WsBMYsU3tTAASAtHzMbA68_9Yx8g@mail.gmail.com> +Date: Wed, 5 Apr 2017 23:24:04 -0700 +Message-Id: <F5F02B94-E094-4C16-80B6-8B0876E423E4@toom.im> +References: <CAAS2fgR84898xD0nyq7ykJnB7qkdoCJYnFg6z5WZEUu0+-=mMA@mail.gmail.com> + <20170406023123.GA1071@savin.petertodd.org> + <CA+KqGkqSxeAUZFVFqM_QkEWcGFHgZXwGuOE==7HpXp1+D_Tj3Q@mail.gmail.com> + <20170406024910.GA1271@savin.petertodd.org> + <CAFVRnyrqiNY_JOqhv2ysm2WsBMYsU3tTAASAtHzMbA68_9Yx8g@mail.gmail.com> +To: Bitcoin Protocol Discussion <bitcoin-dev@lists.linuxfoundation.org> +X-Mailer: Apple Mail (2.3112) +X-Sonic-CAuth: UmFuZG9tSVY2gXk4XRVhqdFPUGreXxmxDNxgF7on+IyRXToOBnPBn6urR/IggEeoVSI6a1nqH43aFxy61j0SVAdiEAgzWN6e +X-Sonic-ID: C;4DehopEa5xGfL9RbNyX4rQ== M;YqkWo5Ea5xGfL9RbNyX4rQ== +X-Sonic-Spam-Details: 0.0/5.0 by cerberusd +X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,RCVD_IN_DNSWL_LOW, + RCVD_IN_SORBS_SPAM 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: Thu, 06 Apr 2017 11:42:53 +0000 +Subject: Re: [bitcoin-dev] BIP proposal: Inhibiting a covert attack on the + Bitcoin POW function +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: Thu, 06 Apr 2017 06:24:09 -0000 + + +--Apple-Mail=_86F49DC1-34C4-49E2-83B0-0BFAC4802FA9 +Content-Transfer-Encoding: quoted-printable +Content-Type: text/plain; + charset=us-ascii + +Ethically, this situation has some similarities to the DAO fork. We have = +an entity who closely examined the code, found an unintended = +characteristic of that code, and made use of that characteristic in = +order to gain tens of millions of dollars. Now that developers are aware = +of it, they want to modify the code in order to negate as much of the = +gains as possible. + +There are differences, too, of course: the DAO attacker was explicitly = +malicious and stole Ether from others, whereas Bitmain is just = +optimizing their hardware better than anyone else and better than some = +of us think they should be allowed to. + +In both cases, developers are proposing that the developers and a = +majority of users collude to reduce the wealth of a single entity by = +altering the blockchain rules. + +In the case of the DAO fork, users were stealing back stolen funds, but = +that justification doesn't apply in this case. On the other hand, in = +this case we're talking about causing someone a loss by reducing the = +value of hardware investments rather than forcibly taking back their = +coins, which is less direct and maybe more justifiable. + +While I don't like patented mining algorithms, I also don't like the = +idea of playing Calvin Ball on the blockchain. Rule changes should not = +be employed as a means of disempowering and empoverishing particular = +entities without very good reason. Whether patenting a mining = +optimization qualifies as good reason is questionable. + +--Apple-Mail=_86F49DC1-34C4-49E2-83B0-0BFAC4802FA9 +Content-Transfer-Encoding: 7bit +Content-Disposition: attachment; + filename=signature.asc +Content-Type: application/pgp-signature; + name=signature.asc +Content-Description: Message signed with OpenPGP using GPGMail + +-----BEGIN PGP SIGNATURE----- +Comment: GPGTools - https://gpgtools.org + +iQEcBAEBCgAGBQJY5d8FAAoJEIEuMk4MG0P1qagH/0BDweWPcotBCsymosKd9W0q +gLRiHmRhlO8HWxBV01QaUwGID3nHuFxyfLLxMNCPk34EYYoVYNS7GjDNkPk1diHt +SHCp/zqjCJGosz68EI22vgESpOQQVX9NmNVOCl7cWTC4dc/0Vq5ZPtb2B4FDFgqq +3KCnIgmhUfyBPQhXk9kE7l/xJb/aD+aW7YDutUT3mhsrNWXTsFFb8kiwuqi/wAEA +OpiaYVEhv8xTZa55dSP6zgmupY8v8mStgDAODoV2OgwUlB0Gn+j4VIgsAV/BtWS8 +yi8/YugY323QDL+GqPDpxOiP+oTZXh6HfYtyy5XOac57fIEFosF4jjXudpMez+A= +=GsrF +-----END PGP SIGNATURE----- + +--Apple-Mail=_86F49DC1-34C4-49E2-83B0-0BFAC4802FA9-- + |