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Date: Thu, 29 Sep 2011 13:40:37 +0200
From: Nils Schneider <nils@nilsschneider.net>
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Cc: bitcoin-development@lists.sourceforge.net
Subject: Re: [Bitcoin-development] Deprecating "midstate" in getwork?
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Yes, that's possible and what
https://github.com/bitcoin/bitcoin/pull/535 does. However, deprecating
midstate (and hash1) would allow for much cleaner code.
A pull request for marking midstate (and hash1) as deprecated can be
found at https://github.com/bitcoin/bitcoin/pull/538
On 29.09.2011 12:23, John Smith wrote:
> Nils,
>
> Sounds good. I'm also doubtful of depending on two crypto libraries when
> OpenSSL does perfectly well.
>
> However, losing compatibility with miners is not very nice. Is there
> really not a way to compute midstate with OpenSSL?
>
> JS
>
> On Mon, Sep 26, 2011 at 7:42 PM, Nils Schneider <nils@nilsschneider.net
> <mailto:nils@nilsschneider.net>> wrote:
>
> Hey,
>
> 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?
>
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