On Thu, Jul 18, 2024 at 04:04:47PM -0700, Antoine Riard wrote:
> Hi Peter,
>
> In my understanding, the attack efficiency varies widely in function of the 
> hashrate ressources
> of the miner getting the high-feerate double-spend A2 transaction. I think 
> higher are the hashrate
> ressources, lower would have been the transaction B (re)-broadcast 
> bandwidth waste.

I think you need to re-read the attack carefully before we discuss this
further. The % of hash power mining full-rbf does not significantly change the
cost efficiency of the attack as long as the fee-rate of the B transaction(s)
is below the minimum economic fee-rate necessary for miners to mine a
transaction. Above the minimum economic fee-rate, the cost efficiency is an
essentially linear function of % of full-rbf miners.

-- 
https://petertodd.org 'peter'[:-1]@petertodd.org

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