←2021-04-15 2021-04-16 2021-04-17→ ↑2021 ↑all
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00:27:47 * pikhq waves
00:51:09 <op_4> hey pikhq
01:02:16 * pikhq has had a fruitful day of professional computer-touching
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01:52:24 <esowiki> [[STOD]] https://esolangs.org/w/index.php?diff=82203&oldid=75117 * Mercerenies * (+38)
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03:44:36 <zzo38> Can you use hashes for random numbers? My idea is that the random number seed consists of two parts (which can contain arbitrary data), being the sequence number and the hash; use the hash of that as the random numbers, and then the next seed is the next sequence number (the initial sequence number can be any number, not necessarily zero) and the previous hash.
04:02:52 <imode> I don't see why not.
04:08:31 <zzo38> Does the method I suggested work?
04:36:08 <pikhq> that seems like it's basically just constructing a stream cipher out of a hash function?
04:37:04 <pikhq> while i wouldn't be confident without a cryptographer looking into it, there probably is an acceptable construction that looks something kind of like that
04:51:52 <zzo38> (The sequence number does not start at zero, because if it does, then it is possible to predict the random numbers.)
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06:18:05 <esowiki> [[Esolang:Sandbox]] https://esolangs.org/w/index.php?diff=82204&oldid=81574 * ColorfulGalaxy * (+1873) /* C */
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07:08:12 <esowiki> [[Esolang:Sandbox]] https://esolangs.org/w/index.php?diff=82205&oldid=82204 * ColorfulGalaxy (disambiguation) * (+223) /* C */
07:10:38 <esowiki> [[Hello world program in esoteric languages]] https://esolangs.org/w/index.php?diff=82206&oldid=81930 * ColorfulGalaxy (disambiguation) * (+2129)
07:11:37 <esowiki> [[Hello world program in esoteric languages]] M https://esolangs.org/w/index.php?diff=82207&oldid=82206 * ColorfulGalaxy (disambiguation) * (+17)
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10:59:27 <b_jonas> quick question. does git still only use sha-1 checksums, and how easy is it for a motivated attacker to mess up your repository by causing you to commit files with sha-1 collisions?
11:07:07 <fizzie> They did some sort of a pinpoint mitigation for the shattered.io attack that I forget the details of, but I don't think the more ambitious plan of moving entirely out of SHA-1 has happened yet.
11:08:03 <fizzie> https://git-scm.com/docs/hash-function-transition/ "Git v2.13.0 and later subsequently moved to a hardened SHA-1 implementation by default, which isn’t vulnerable to the SHAttered attack, but SHA-1 is still weak."
11:13:03 <b_jonas> I'm mostly asking because someone wants to use git for storing certain some data in the future, where I think it would be a bad idea to use git, not only because of the sha-1 but for other reasons too, and want to give arguments to change their mind
11:13:28 <b_jonas> fizzie: thanks
11:33:07 <nakilon> should use git if data is binary
11:33:11 <nakilon> for example
11:33:48 <nakilon> btw, wanted to ask
11:34:06 <nakilon> has anyone of you ever seen the accidental md5 collision?
11:34:15 <nakilon> in reality
11:34:47 <nakilon> in your real projects, not brought to you by upvoted funny blog posts
11:35:25 <nakilon> *should not
11:35:32 <nakilon> (typo in my first message)
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14:17:33 <int-e> Ah puzzles. https://paste.debian.net/1193985/ :)
14:19:14 <nakilon> the "(X moves first)" is tautology here
14:19:26 <int-e> I know that it can be inferred :)
14:20:32 <int-e> though it's not *quite* tautological... in Othello, O might have had the first move, but been forced to pass
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14:22:37 <int-e> And it actually turns out that the shortest Reversi games are one move shorter than the shortest Othello games.
14:24:34 <int-e> because in these positions with O to move, the game just ends: https://paste.debian.net/1193986/
14:28:42 <nakilon> oh, didn't know
14:29:17 <int-e> I had to check Wikipedia on the precise rules.
14:30:48 <int-e> Finally resolving a bit of cognitive dissonance that I've been suffering for a few decades :-P (because I learned the Reversi rules as a kid, and then I played Othello a lot on Windows, and the fixed starting pattern as well as the passing rule felt kind of wrong)
14:35:49 <int-e> (A possible solution is https://paste.debian.net/1193987/ ...not sure how feasible this is without a computer. But I liked the diamond shape, that was unexpected.)
14:37:44 <fizzie> Out of those, I've just played Reversi on Windows 1.02. Not sure whether its exact rules match the name.
14:38:14 <nakilon> there was reversi on zx spectrum
14:38:19 <nakilon> couldn't beat it
14:38:37 <nakilon> actually there were all kinds of games with difficulty levels we couldn't beat
14:38:44 <nakilon> chess, gomoku
14:40:15 <fizzie> The Windows 1.02 version has a "Skill" level selector (Beginner/Novice/Expert/Master), but I've no idea which one (if any) I could beat.
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14:43:25 <nakilon> we had this https://www.youtube.com/watch?v=ZyDSL_iJx2o
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14:45:34 <nakilon> my favourite logic game on spectrum was...
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14:51:40 <nakilon> can't find it (
14:51:51 <nakilon> it was like reversi on hexagonal field
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14:52:41 <nakilon> and you have not to make more pieces of your color but fill more triangle sectors in between the hexagonal field lines
14:53:05 <nakilon> every time you surround a triangle you permanently draw it to your color
15:01:38 <nakilon> found it; the only video unfortunately https://www.youtube.com/watch?v=b7mtrim1u94
15:01:54 <nakilon> it does not show the second player to draw any triangles
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17:37:40 <esowiki> [[Toki pi ilo nanpa]] M https://esolangs.org/w/index.php?diff=82208&oldid=82188 * Olus2000 * (+22) /* Verb sentences */ kipisi argument description update
17:38:11 <esowiki> [[Toki pi ilo nanpa]] M https://esolangs.org/w/index.php?diff=82209&oldid=82208 * Olus2000 * (+6) /* Verb sentences */ grammar in kipisi description
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18:13:52 <esowiki> [[Duocentehexaquinquagesimal]] https://esolangs.org/w/index.php?diff=82210&oldid=82183 * Makonede * (+82)
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22:02:48 <fizzie> https://en.wikipedia.org/wiki/Meat_raffle "Care must be taken with seafood trays given the propensity for the contents to spoil in the heat as the lucky winner continues drinking; often a friendly publican will store the tray in the fridge until the winner is sufficiently refreshed and ready to head home.[citation needed]"
22:02:53 <fizzie> Ah, Wikipedia, never change.
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←2021-04-15 2021-04-16 2021-04-17→ ↑2021 ↑all