171 sats \ 2 replies \ @petertodd 20 Oct 2023 \ parent \ on: Large lightning vulnerability concern bitcoin
Since this attack requires the channel to be closed to work, a simple mitigation is to just reduce the maximum amount that can be in flight in HTLCs to some %, eg 10%. I don't know off the top of my head if LND can do that. But it should if it doesn't.
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70 sats \ 1 reply \ @DarthCoin 20 Oct 2023
Yes LND and CLN can do that. Here I explained in my routing fees experiment that is even indicated to do that (limit min/max HTLC) and also Rene Pickhardt came to the same conclusion in his latest study (link is in my article)
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172 sats \ 0 replies \ @petertodd 20 Oct 2023
Not quite. I'm not suggesting that a single HTLC be limited in size. I'm suggesting that the sum of all simultaneous HTLCs for a given channel be limited.
Of course, setting the maximum HTLC value and the maximum number of HTLCs does that indirectly. But not as efficiently as a max HTLC sum limit.
Also, in your article you have links to specific lines in files on GitHub. Those links are broken because you linked to master, rather than a specific git commit. You can hit the "y" key to get a stable URL for a specific git commit in GitHub.
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