From: /dev /fd0 <alicexbtong@gmail•com>
To: Bitcoin Development Mailing List <bitcoindev@googlegroups.com>
Subject: Re: [bitcoindev] Consensus Cleanup BIP draft
Date: Thu, 27 Mar 2025 10:54:45 -0700 (PDT) [thread overview]
Message-ID: <e32b5d5c-1326-451c-b2eb-d7a92c50d9ban@googlegroups.com> (raw)
In-Reply-To: <CAGL6+mFQqTS21cQZ_aU=hXtMaKkw5ygAk2PT9hQpdB4THz9X_A@mail.gmail.com>
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Hi Chris,
I agree with separation.
Also I need more details as some of them could be CIA proxy and introduce
another bug. Any change in consensus code need more discussion.
/dev/fd0
floppy disk guy
On Thursday, March 27, 2025 at 5:49:30 PM UTC+5:30 Chris Stewart wrote:
> Hi Antoine,
>
> First off, concept ACK. My concerns are procedural rather than objections
> to the individual security fixes themselves.
>
> The "Great Consensus Cleanup" is a fantastic brand for communicating these
> protocol changes to non-technical users. However, since this is a technical
> forum and we are producing BIPs intended for technical audiences, I believe
> we should document these changes in separate BIPs.
>
> The proposed security fixes are largely unrelated from a technical
> standpoint:
>
> 1.
>
> Timewarp attack mitigation
> 2.
>
> Worst-case block validation constraints
> 3.
>
> Disallowing 64-byte transactions
> 4.
>
> Avoiding duplicate transactions
>
> We should absolutely retain the "Great Consensus Cleanup" branding while
> independently documenting each security enhancement.
>
> A common concern I’ve heard about splitting this BIP is that deploying
> soft forks is difficult, so all changes should be bundled together. While
> soft fork deployment is indeed challenging, we've successfully activated
> multiple BIPs within a single soft fork in the past—e.g., BIP141 and BIP143
> in Segwit, as well as BIP341, BIP342, and BIP343 in Taproot. If the
> community reaches consensus, we can still deploy all these changes
> together, even if they are documented separately.
>
> This approach also provides flexibility: if one of the proposed changes
> turns out to be controversial, we could remove it without holding up the
> rest of the improvements. Additionally, once these fixes are deployed,
> there will likely be significant research and documentation to incorporate,
> and maintaining independent BIPs will make it easier to manage that growth.
>
> I do see merit in implementing all the security fixes in a single PR for
> Bitcoin Core. More active contributors to the project may have stronger
> opinions on the best approach there.
>
> -Chris
> ------------------------------
>
>
>
>
> On Wed, Mar 26, 2025 at 1:23 PM 'Antoine Poinsot' via Bitcoin Development
> Mailing List <bitco...@googlegroups•com> wrote:
>
>> Hi everyone,
>>
>> About two months ago i shared an update on this list about my (and
>> others', really) work on the
>> Consensus Cleanup [0]. I am now ready to share a BIP draft for a
>> Consensus Cleanup soft fork.
>>
>> The BIP draft can be found here:
>> https://github.com/darosior/bips/blob/consensus_cleanup/bip-cc.md
>>
>> It includes the following fixes:
>> - a restriction on the timestamp of the first and last blocks of a
>> difficulty adjustment period to
>> address the Timewarp and Murch-Zawy attacks;
>> - a limit on the number of legacy signature operations that may be
>> executed in validating a single
>> transaction to address long block validation times;
>> - making 64 bytes transactions invalid to address weaknesses in the block
>> Merkle tree construction;
>> - mandating coinbase transactions be timelocked to their block height to
>> prevent future transaction
>> duplication without resorting to BIP30 validation.
>>
>> This BIP draws on the 2019 Great Consensus Cleanup proposal from Matt
>> Corallo [1]. A number of
>> people contributed ideas, testing, data or useful discussions. This
>> includes Ava Chow, Matt Corallo,
>> Mark Erhardt, Brian Groll, David A. Harding, Sjors Provoost, Anthony
>> Towns, Greg Sanders, Chris
>> Stewart, Eric Voskuil, @0xb10c and others.
>>
>> Antoine Poinsot
>>
>> [0]
>> https://gnusha.org/pi/bitcoindev/jiyMlvTX8BnG71f75SqChQZxyhZDQ65kldcugeIDJVJsvK4hadCO3GT46xFc7_cUlWdmOCG0B_WIz0HAO5ZugqYTuX5qxnNLRBn3MopuATI=@protonmail.com
>> [1]
>> https://github.com/TheBlueMatt/bips/blob/7f9670b643b7c943a0cc6d2197d3eabe661050c2/bip-XXXX.mediawiki
>>
>> --
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>> https://groups.google.com/d/msgid/bitcoindev/uDAujRxk4oWnEGYX9lBD3e0V7a4V4Pd-c4-2QVybSZNcfJj5a6IbO6fCM_xEQEpBvQeOT8eIi1r91iKFIveeLIxfNMzDys77HUcbl7Zne4g%3D%40protonmail.com
>> .
>>
>
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next prev parent reply other threads:[~2025-03-31 20:50 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-03-26 17:14 'Antoine Poinsot' via Bitcoin Development Mailing List
2025-03-27 10:46 ` Chris Stewart
2025-03-27 17:54 ` /dev /fd0 [this message]
2025-03-27 19:05 ` 'Antoine Poinsot' via Bitcoin Development Mailing List
2025-03-27 20:45 ` jeremy
2025-03-27 21:38 ` 'Antoine Poinsot' via Bitcoin Development Mailing List
2025-03-28 9:23 ` Sjors Provoost
2025-03-28 11:02 ` Chris Stewart
2025-03-28 12:48 ` Sjors Provoost
2025-03-28 13:54 ` Chris Stewart
2025-03-28 14:07 ` Sjors Provoost
2025-03-28 19:53 ` eric
2025-03-29 11:02 ` Sjors Provoost
2025-03-31 11:00 ` Anthony Towns
2025-03-31 15:29 ` 'Antoine Poinsot' via Bitcoin Development Mailing List
2025-03-31 20:09 ` eric
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