From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from sog-mx-3.v43.ch3.sourceforge.com ([172.29.43.193] helo=mx.sourceforge.net) by sfs-ml-1.v29.ch3.sourceforge.com with esmtp (Exim 4.76) (envelope-from ) id 1R8lDs-0000u3-Ku for bitcoin-development@lists.sourceforge.net; Wed, 28 Sep 2011 03:54:16 +0000 X-ACL-Warn: Received: from zinan.dashjr.org ([173.242.112.54]) by sog-mx-3.v43.ch3.sourceforge.com with esmtp (Exim 4.76) id 1R8lDr-0002X4-Q1 for bitcoin-development@lists.sourceforge.net; Wed, 28 Sep 2011 03:54:16 +0000 Received: from ishibashi.localnet (fl-184-4-160-40.dhcp.embarqhsd.net [184.4.160.40]) (Authenticated sender: luke-jr) by zinan.dashjr.org (Postfix) with ESMTPSA id 81364204031; Wed, 28 Sep 2011 03:54:07 +0000 (UTC) From: "Luke-Jr" To: bitcoin-development@lists.sourceforge.net Date: Tue, 27 Sep 2011 23:54:00 -0400 User-Agent: KMail/1.13.7 (Linux/2.6.39-gentoo; KDE/4.6.5; x86_64; ; ) References: <4E80D591.2080100@nilsschneider.net> In-Reply-To: X-PGP-Key-Fingerprint: CE5A D56A 36CC 69FA E7D2 3558 665F C11D D53E 9583 X-PGP-Key-ID: 665FC11DD53E9583 X-PGP-Keyserver: x-hkp://subkeys.pgp.net MIME-Version: 1.0 Content-Type: Text/Plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Message-Id: <201109272354.02695.luke@dashjr.org> X-Spam-Score: -0.5 (/) X-Spam-Report: Spam Filtering performed by mx.sourceforge.net. See http://spamassassin.org/tag/ for more details. -0.5 RP_MATCHES_RCVD Envelope sender domain matches handover relay domain X-Headers-End: 1R8lDr-0002X4-Q1 Subject: Re: [Bitcoin-development] Deprecating "midstate" in getwork? X-BeenThere: bitcoin-development@lists.sourceforge.net X-Mailman-Version: 2.1.9 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 28 Sep 2011 03:54:16 -0000 On Tuesday, September 27, 2011 11:45:48 PM Jeff Garzik wrote: > On Mon, Sep 26, 2011 at 3:42 PM, Nils Schneider wrote: > > I'd like to simplify the internal reference miner and remove all > > dependencies on cryptopp (it's the only place we use cryptopp instead of > > OpenSSL). > > > > Unfortunately, cryptopp is also used to calculate getwork "midstate". > > This field is redundant and the miner could easily calculate it from the > > blockheader so I'd like to remove it. > > > > Any thoughts? Where should such a change should be announced so all > > miners can be upgraded? > > I think one of the pools was already working on something like that? > I'm pretty sure it can be removed, and I'm pretty sure somebody has > already field-tested that guess. I tested removing midstate myself, and found at least one miner (cpuminer IIRC) requires it.