--- Log opened Wed Nov 04 00:00:06 2020
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06:00 < ariard> dr_orlovsky: not I'm aware of for the HTLC outputs
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09:27 < dr_orlovsky> ariard: copy of sipa answer from ##miniscript
09:28 < dr_orlovsky> 18:13 darosior: dr_orlovsky there are some on bitcoin.sipa.be/miniscript iirc
09:28 < dr_orlovsky> 18:13 darosior: But they seem to be out of date, don't know if you want an actual or conceptual example :)
09:28 < dr_orlovsky> 18:15 sipa: the site has policies that correspond to the BOLT3 scripts' semantics
09:28 < dr_orlovsky> 18:16 sipa: but they don't compile to the exact same scripts
09:28 < dr_orlovsky> 18:19 sipa: and afaik the actual scripts used aren't valid miniscript, so miniscript can't be used to do LN signing
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09:58 < ariard> dr_orlovsky: good to know, well at least scripts have changed with introduction of anchor outputs
09:59 < ariard> dr_orlovsky: what's are you trying to achieve, signing any kind of miniscript output on a commitment?
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15:49 < ariard> BlueMatt: lmk what's your final thinking on DoS risks & #736, choosing our gossips-sync peers randomly should at least mitigate a bit the spec thorns
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16:53 < BlueMatt> ariard: I strongly disagree that we should merge something that is just a partial implementation that has potential DoS risk once fully implemented, fwiw, but, otherwise, yea, we just need to bound things.
16:58 < BlueMatt> ariard: and, fwiw, I'm not worried about bandwidth as long as we can make sure channel messages go first. If users want to limit bandwidth, they need to limit the tcp send rate - otherwise a peer can still use all our bandwidth with pings.
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18:05 < ariard> BlueMatt: by which DoS are you worried about if it's not upload bandwidth ? I interpreted your comment " In the case the peer is malicious and trying to make us waste upload bandwidth by sending more queries" as such
18:06 < ariard> BlueMatt: the disk IO isn't about our map but your full-node querying the UTXO for `channel_announcement` verification
18:08 < ariard> BlueMatt: also, I'm fine to implement DoS mitigations in this PR. Assuming we already know what we want, I've tried to think about some heuristics, but unless you bound to the whole blockspace, we likely need to answer a) and c)
18:09 < ariard> a) and c) as https://github.com/rust-bitcoin/rust-lightning/pull/736#issuecomment-721480897
18:11 < ariard> BlueMatt: have to go but happy to keep the conv tmrw :) I don't think we agree yet on the DoS vectors
18:12 < BlueMatt> ariard: mostly memory usage.
18:12 < BlueMatt> ie cause if we use too much memory we get OOM killed and the process crashes. not good.
18:13 < BlueMatt> ariard: as for querying for UTXO validation. thats fair, though I presume many users wont have a full node to query and hopefully those who do have a high-performance one :)
18:14 < BlueMatt> ariard: as for upload bandwidth, again, others can just waste ours with ping/pong all day long - the important thing here is that we shouldnt allow upload bandwidth usage to prevent us from eg sending channel message stuff - we already have this in place for peers-syncing-from-us - we only send new sync messages when there are no other messages in the queue :)
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--- Log closed Thu Nov 05 00:00:07 2020