--- Log opened Mon Oct 07 00:00:13 2024
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05:00 < real_or_random> sipa: I've just seen your comment on affine vs jacobi when it comes to constant-time ... crazy, I had never considered this
05:00 < real_or_random> cc nickler_ 
05:02 < real_or_random> I'm still processing this... shouldn't our ctimetests catch this?
05:04 < real_or_random> I guess no because we declassify the entire output of an ecmult?
06:13 < sipa> we shouldn't declassify the gej output
07:11 < nickler_> If a jacobi point is declassified, the ctimetests cannot catch this. But yeah, a potential pitfall.
07:16 < roconnor> what comment?
07:25 < sipa> roconnor: https://github.com/bitcoin-core/secp256k1/pull/1479#discussion_r1790079414
07:35 < sipa> real_or_random: i went over all declassify calls in master + musig2 PR, and don't see any being applied to a gej
07:49 < real_or_random> yeah makes. when I wrote this, I was wrongly assuming that nickler_ had changed the PR already to use batch inversion. but he has not, so it's clear that the tests don't catch anything.
07:55 < sipa> real_or_random: he did, but only in one of the two places (and it's in the other one where it's applied to secret*generator)
07:59 < real_or_random> okay, yes, that's what I meant
08:00 < nickler_> hi
08:00 < real_or_random> hi
08:01 -!- nickler_ is now known as nickler
08:02 < real_or_random> sipa
08:03 < nickler> topic: merge?
08:03 < real_or_random> merge musig?
08:03 < nickler> yes
08:04 < real_or_random> oh yep, even theStack's ACK in :)
08:04 < real_or_random> let's dooo ti
08:04 < real_or_random> it
08:05 < bitcoin-git> [secp256k1] real-or-random pushed 6 commits to master: https://github.com/bitcoin-core/secp256k1/compare/4c57c7a5a953...3660fe5e2a96
08:05 < bitcoin-git> secp256k1/master 85e224d Jonas Nick: group: add ge_to_bytes and ge_from_bytes
08:05 < bitcoin-git> secp256k1/master c8fbdb1 Jonas Nick: group: add ge_to_bytes_ext and ge_from_bytes_ext
08:05 < bitcoin-git> secp256k1/master 0be7966 Jonas Nick: util: add constant-time is_zero_array function
08:05 < bitcoin-git> [secp256k1] real-or-random merged pull request #1479: Add module "musig" that implements MuSig2 multi-signatures (BIP 327) (master...musig2-module) https://github.com/bitcoin-core/secp256k1/pull/1479
08:05 < real_or_random> well, this was a productive meeting
08:06 < real_or_random> now merge silent payment, I guess? :X
08:07 < nickler> topic: anything in particular we should prepare or discuss at the CoreDev meeting (besides Silent Payments)?
08:10 < real_or_random> hm, I'd suggest I "sit down and get some issues/PRs off the desk" session
08:10 < real_or_random> aka kill, shill, merge
08:10 < nickler> good idea
08:11 < real_or_random> but that's a bit hard to prepare. ^^ apart from that, I don't know. and I won't be able to make it
08:12 < sipa> i will be there
08:13 < real_or_random> speaking of getting PRs of the table, this is an easy one. https://github.com/bitcoin-core/secp256k1/pull/1603/files  all it does it is make a VERIFY_CHECK stricter. I'm tempted to merge with my single ACK, it can't hurt
08:14 < nickler> I have no other topics
08:15 < theStack> i'd be very interested to hear more about FROST (both with and without DKG) at coredev; started looking at secp-zkp #278 recently (as it seems to share a lot with musig2), but i'm not aware what the concrete plans are there
08:17 < nickler> Yes, happy to talk about FROST and (BIP) DKG
08:17 < real_or_random> "no other topics" for coredev or for this meeting?
08:18 < sipa> none from me
08:18 < sipa> but yay musig2
08:20 < nickler> for this meeting
08:20 < real_or_random> nickler: wanna go ahead and announce on social media? :P not for the likes, but I think some people were waiting for it
08:20 < real_or_random> well ok, we need a release first
08:21 < sipa> when is our next release roughly scheduled?
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08:23 < real_or_random> https://github.com/bitcoin-core/secp256k1/milestone/6 "Due Nov 1st"
08:23 < sipa> feature freeze for bitcoin core 29.0 is 2025-02-20, which would mean a release a month before that, on 2025-01-20, and one 3 months earlier... which is in 2 weeks?
08:25 < real_or_random> oh sure, I forgot about the optional release in between core releases
08:25 < real_or_random> well that would be a nice opportunity then
08:25 < real_or_random> ah lol no, this is the one
08:25 < real_or_random> nevermind
08:25 < sipa> ?
08:26 < real_or_random> anyway, yeah, before/on Nov 1 sounds nice
08:26 < sipa> I'm going by "We aim to cut a regular release every 3-4 months, approximately twice as frequent as major Bitcoin Core releases. Every second release should be published one month before the feature freeze of the next major Bitcoin Core release, allowing sufficient time to update the library in Core."
08:26 < sipa> yeah
08:27 < nickler> would be nice to release with MuSig2 in November instead of waiting 4 months
08:27 < nickler> real_or_random: announced on social media
08:27 < sipa> fine, i'll log into twitter...
08:28 < nickler> sorry :(
08:29 < real_or_random> lol
08:30 < real_or_random> you mean x :P
08:31 < sipa> real_or_random: i went to twitter.com and entered my twitter.com saved credentials; i'm refusing to look at the URL bar of my browser since
08:32 < real_or_random> jk
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17:09 < bitcoin-git> [secp256k1] real-or-random pushed 2 commits to master: https://github.com/bitcoin-core/secp256k1/compare/3660fe5e2a96...a88aa9350633
17:09 < bitcoin-git> secp256k1/master ef7ff03 Russell O'Connor: f can never equal -m
17:09 < bitcoin-git> secp256k1/master a88aa93 merge-script: Merge bitcoin-core/secp256k1#1603: f can never equal -m
17:09 < bitcoin-git> [secp256k1] real-or-random merged pull request #1603: f can never equal -m (master...f-is-not-neg-modulus_2024-09) https://github.com/bitcoin-core/secp256k1/pull/1603
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--- Log closed Tue Oct 08 00:00:14 2024