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Mon, 17 Jun 2024 15:25:09 -0700 (PDT) X-Received: by 2002:a05:690c:398:b0:62d:a29:537e with SMTP id 00721157ae682-63222565d7emr36150967b3.4.1718663108883; Mon, 17 Jun 2024 15:25:08 -0700 (PDT) Received: by 2002:a0d:f244:0:b0:620:26bb:319f with SMTP id 00721157ae682-6321bacb6c0ms7b3; Mon, 17 Jun 2024 15:15:53 -0700 (PDT) X-Received: by 2002:a05:690c:6712:b0:61b:1dbf:e3f with SMTP id 00721157ae682-63222b54cfdmr31605987b3.4.1718662552801; Mon, 17 Jun 2024 15:15:52 -0700 (PDT) Date: Mon, 17 Jun 2024 15:15:52 -0700 (PDT) From: Eric Voskuil To: Bitcoin Development Mailing List Message-Id: <72e83c31-408f-4c13-bff5-bf0789302e23n@googlegroups.com> In-Reply-To: References: Subject: [bitcoindev] Re: Great Consensus Cleanup Revival MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="----=_Part_15648_368106650.1718662552445" X-Original-Sender: eric@voskuil.org Precedence: list Mailing-list: list bitcoindev@googlegroups.com; contact bitcoindev+owners@googlegroups.com List-ID: X-Google-Group-Id: 786775582512 List-Post: , List-Help: , List-Archive: , List-Unsubscribe: , X-Spam-Score: -0.7 (/) ------=_Part_15648_368106650.1718662552445 Content-Type: multipart/alternative; boundary="----=_Part_15649_335122652.1718662552445" ------=_Part_15649_335122652.1718662552445 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Hi Antoine, Regarding potential malleability pertaining to blocks with only 64 byte=20 transactions, why is not a deserialization phase check for the coinbase=20 input as a null point not sufficient mitigation (computational=20 infeasibility) for any implementation that desires to perform permanent=20 invalidity marking? Best, Eric ref: Weaknesses in Bitcoin=E2=80=99s Merkle Root Construction=20 --=20 You received this message because you are subscribed to the Google Groups "= Bitcoin Development Mailing List" group. To unsubscribe from this group and stop receiving emails from it, send an e= mail to bitcoindev+unsubscribe@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/= bitcoindev/72e83c31-408f-4c13-bff5-bf0789302e23n%40googlegroups.com. ------=_Part_15649_335122652.1718662552445 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Hi Antoine,

Regarding potential malleability pertaining to block= s with only 64 byte transactions, why is not a deserialization phase check = for the coinbase input as a null point not sufficient mitigation (computati= onal infeasibility) for any implementation that desires to perform permanen= t invalidity marking?

Best,
Eric

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