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Mon, 11 Jul 2022 17:56:55 -0400 (EDT) Received: by localhost (Postfix, from userid 1000) id 8BA035F7C1; Mon, 11 Jul 2022 17:56:53 -0400 (EDT) Date: Mon, 11 Jul 2022 17:56:53 -0400 From: Peter Todd To: Bitcoin Protocol Discussion Message-ID: References: MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="iemoTjpKqZetSllg" Content-Disposition: inline In-Reply-To: Subject: Re: [bitcoin-dev] Security problems with relying on transaction fees for security X-BeenThere: bitcoin-dev@lists.linuxfoundation.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Bitcoin Protocol Discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 11 Jul 2022 21:56:57 -0000 --iemoTjpKqZetSllg Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Mon, Jul 11, 2022 at 05:36:52PM -0400, Peter Todd via bitcoin-dev wrote: > On Mon, Jul 11, 2022 at 04:35:02PM -0400, Russell O'Connor via bitcoin-de= v wrote: > > > What happens after that I'm not sure. > > > > >=20 > > Miners will learn to create anyone-can-spend outputs to bribe other min= ers > > to build on their block rather than reorg it. (Due to the coinbase > > maturity, this will require some amount of floating capital.) >=20 > ...and that's a disaster for mining centralization, because the smaller m= iners > need to pay larger bribes than larger miners. Not to mention having to ke= ep > capital around to do it. Also, note how from a practical point of view, we'll need to add a new type= of tx that's only valid in a specific block, or other miners will just reorg t= hose anyone-can-spend outputs to steal them. It's not all that trivial to actual= ly do that... you'd have to have a signature that commits to the non-segwit pa= rt of the coinbase outputs. Ugh. --=20 https://petertodd.org 'peter'[:-1]@petertodd.org --iemoTjpKqZetSllg Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAEBCgAdFiEE0RcYcKRzsEwFZ3N5Lly11TVRLzcFAmLMnKMACgkQLly11TVR LzeqGBAArf0ZwPyAYRupmeV72aBDicUo4UE5AQAuOsIfjG8QnR8ccUiLhwBNE7u/ z/YHmClXc+XlRh8aD69nBzZ26TJc9HB+KqntQ4TajkW6kIcYtblHXkliZTf00Rk4 NWyWntfHK1HUPaiq4Fgh/ysmfoJ7/TJVUCuwnVU8sDWaAcdCb9vSdigIdCkRq/wr mMWEGjjNE9dciteBBptv5ckvvp2a6DTrZtn8Eca5M5WoAVaMVGolqHKgpFUo5gbL v4h0k+FOkbqirJHrRWWXmcEJrKteAUj0h1caw5b91GNYo4F8Xt8O+LgKlzjVyVgG XsF5hZL+yTev8PUX/ekr0pXY3tOITef2Zh3B6qZyxxyB+5t56fr1DyU+guVEY4Vm IRwewtIDuf2NYI6SQT1h3LY8ufmp2qUOcilyJ3IyZfY4eu9IXkDIhYR04yoT6fj3 vlWNtawH4+ijHNzzV58xbL1PZSTG48P45FgNAr7OEIc62qPSb1MzPY5tuIZU3E9q 7l3jQaYg06CybtBqr+ETaqZLYDA91/GUaNBm2g71grGS6MtKxorOBWBOFbT7NUGA uh8/hPCN6B1zuMG4NntScPX2z+2igOkOwaHiQ06K5ayBD9HzlXI4OFxugD7sVkne 6Ro/c1rZNA5lXbtnlbH0ffDURqb8bXHiyF+vWiI5mMv4cNxD5LY= =wUtm -----END PGP SIGNATURE----- --iemoTjpKqZetSllg--