01:42:25 has this paper been mentioned here yet? https://eprint.iacr.org/2023/318 01:42:41 would be relevant if we're still using stealth addresses in the long run 01:52:21 hyc: not yet, thanks 05:29:32 tevador: Dalek bulletptoofs was forked into a curve trees impl 07:36:05 "A simple standard test for..." <- Fishtest uses something called the x^2 test, which is very similar in essence to the chi test I think 07:36:26 (fishtest being some testing framework that has to deal with abnormalities) 07:37:26 Oh, I think it is the exact same, just a different name 07:41:46 Well then, there's a reference implementation (in python). They also have improved upon sprt generalizing into gsprt (well generalized sprt) using mle (maximum likelihood estimation) to, well, estimate unknown variables of the null hypothesis. I think I have an implementation of that in rust sitting around, but not sure if it is finished (I vaguely remember being annoyed I wasn't able to get rid of a lot of clones, even though 07:41:46 it is only 5 doubles in this case lol) 07:48:36 (saying, if you need for some reason a gsprt reference...) 10:12:47 xmrack[m]: i wonder why they chose to define 'untraceability' and 'unlinkability', as opposed to leaning on existing definitions of traceability and linkability, and then measuring against those 14:48:32 ECIP calculations: https://agorism.dev/uploads/ecip_calculations.ipynb 14:48:38 i also posted it on the github 14:49:50 liam sent me this sage worksheet 18:51:10 midipoet: not sure 18:51:10 ghostway: x^2 is supposed to be ASCII for χ² probably. χ is the Greek letter chi. 18:56:25 Oh, indeed. Never looked at the x too closely lol 18:56:25 Confusing part: By convention, "the" chi-squared test tests whether the frequency of discrete values is equal. However, if we are being 100% correct, there are many different chi-squared tests. Chi-squared is a statistical distribution that results from computing the product of two independent normal random variables. If we have the sum of k such products, it is "chi-squared with k degrees of freedom". 18:58:25 Interesting, I think this was mentioned somewhere I read. Too much time has passed to remember heh 18:58:25 So you can have a statistical test whose _test statistic_ has a chi-squared distribution when the test's null hypothesis is true. That test is not necessarily the "canonical" chi-squared test. So maybe the test you mentioned is "the" chi-squared test. Or many the test statistic just is ch-squared distributed under the null hypothesis. 18:59:11 You also sometimes have "the" F statistic. F is a specific distribution. The same confusion applies. 19:07:40 I'm quite sure what I mentioned is what you call by "the" chi-squared test 19:07:40 If I understand correctly 19:07:41 But with k degrees of freedom 19:07:41 Well that's in the regular test anyway 20:17:16 "big new paper analyzing ringct..." <- I reached out, on twitter, to the authors of the security audit and asked if they would join the next MRL meeting on Wednesday to discuss their work and answer any questions. They accepted and will be joining! 20:19:05 Thank you, xmrack . So we will have tx_extra, MRL issue #100 (trustless zk-SNARKs), and RingCT rigorous security proofs next meeting. Good luck, koe 20:22:52 xmrack[m]: nice thanks 20:23:11 xmrack: thanks for reaching out to them! This is very thorough. 20:25:46 UkoeHB: if I may suggest, put tx_extra at the tail end of Wednesday's agenda so that we don't end up in a situation where all the time gets eaten up by it and the authors of the paper won't have the chance to answer questions. 20:26:49 yes I will do that 20:27:27 ❤️ 22:40:02 https://research.kudelskisecurity.com/2023/03/06/polynonce-a-tale-of-a-novel-ecdsa-attack-and-bitcoin-tears/ 23:01:20 xmrack[m]: interesting