ChanServ changed the topic of #bitcoin-core-dev to: Bitcoin Core development discussion and commit log | Feel free to watch, but please take commentary and usage questions to #bitcoin | Channel logs: http://www.erisian.com.au/bitcoin-core-dev/, http://gnusha.org/bitcoin-core-dev/ | Weekly Meeting Thursday @ 14:00 UTC | Meeting topics http://gnusha.org/bitcoin-core-dev/proposedmeetingtopics.txt
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<vasild> What about p2p encryption for Tor/I2P/CJDNS peers? Does that make sense? I guess no?
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<vasild> There is an unencrypted link between bitcoind and the (e.g.) Tor daemon, but that is usually running on the same machine.
<vasild> How much is the overhead of BIP324 wrt to network traffic volume and CPU load?
<vasild> sipa: ^
<sipa> depending on CPU architecture, the overhead of BIP324 v2 connections is actually less than v1
<sipa> (because v1's double-SHA256 for the checksum is dumb)
<sipa> on systems with SHA256 hardware acceleration it's faster than chacha20poly1305, though
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<sipa> i do agree that there is not much point to the encryption in tor hidden service, and i2p settings
<vasild> ha!
<vasild> and traffic volume?
<sipa> v2 uses slightly less bandwidth
<vasild> do you have numbers?
<sipa> v1 has an overhead of 24 bytes per message; v2 has 21 bytes when shortids are in use, 33 bytes otherwise
<dviola> sipa, furszy: migration went well here, thanks a lot
<vasild> I guess that if we listen on e.g. Tor and support both and somebody connects to us and starts speaking v2, then let it be, talk v2.
<vasild> hmm, I guess we will by default use shortids
<sipa> yeah, they're assigned for all currently used message types, except ones that are only sent once per connection
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<vasild> interesting, so it looks like it would be easier to do nothing special and go with p2p encryption also for tor/...
* vasild afk...
<sipa> i think so - it'd in theory be possible to define yet another transport that is more lightweight than v1 and has the bandwidth savings of v2 but not the encryption... but i don't think it's worth the logistical complexity of having yet another transport
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<vasild> I agree
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<dviola> surprised how smooth the migration process went (bdb -> sqlite)
<dviola> well, not really, bitcoin core is one of those things that never gave me any issues
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<achow101> real_or_random: hwi could probably switch to using github actions, I just don't have the time to do that yet
<achow101> it doesn't get much activity either, so I can just turn off the cronjob for now and it basically won't run for a while
<hebasto> achow101: mind enabling GHA in HWI repo with the same allowed actions as for Bitcoin Core? I'll try to migrate CI, if you agree
<achow101> sure
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