log☇︎
158300+ entries in 0.095s
asciilifeform: if we gotta compute on fpga, to do rsa sanely -- then fpga it is. 8192-bit regs.
asciilifeform: dunno what is complicated about this
asciilifeform: because there is demonstrably no difference.
asciilifeform: if idjits want to optimize in a way that results in nonfittinginhead, they may as well install winblowz
mircea_popescu: which is a serious point of alarm in my head at this juncture.
asciilifeform: and that an rsa that is not ptronic is not worth using
mircea_popescu: because optimizations. which may piss you off, but it'll be done anyway ; and the process MUCHLY reminds me of how bitcoin mining degraded irl.
asciilifeform: i hold that it is not meaningful to attempt to separate'em
mircea_popescu: the sadness here is that indeed tmsr-rsa is turning into separate item from p itself.
asciilifeform: ( incidentally reader might ask 'why not do montgomery? you're doing rsa anyway' and answer is not only 'maybe tomorrow, cramer-shoup and not rsa' but also that we do things such as primality testing , and other non-rsa op )
mircea_popescu: so, want a frog you can kiss into housekeeper&cocksucker all you want, for all the good'll do ye.
mircea_popescu: most of which are verboten by the whole "mechanism" view of things.
mircea_popescu: all that's left is little cheats here and there.
asciilifeform: is what i was trying to get across in the beginning
mircea_popescu: anyways. i spent some time where the math lives, and i am satisfied that proving some sort of hard relation between fxy=mod(xy) and a polynomial expression of xy is in fact reality-breaking.
asciilifeform: mircea_popescu: i'm satisfied that it holds, as written. in re knuth, turned out that i was thinking of the 'addition chains' method of mod-exp
a111: Logged on 2017-09-12 22:35 asciilifeform: this btw is also in vol2 of knuth
a111: Logged on 2017-09-12 22:20 asciilifeform: i'ma need to find a proof that this holds for all integers.
mircea_popescu: so in the end what was it, http://btcbase.org/log/2017-09-12#1713104 or http://btcbase.org/log/2017-09-12#1713161 ? cuz i don't expect it can be both dubious and well known at the same time. ☝︎☝︎
asciilifeform: one way or another it will have to appear.
asciilifeform: the saving grace is that indeed i and everybody else can get by without ideal modelf kbd. but on the other hand i ~do~ need a modmulter.
mircea_popescu: at any rate if you put an order for keys they'll be relieved. "really, not pens for once ?! holy shit this is the most exciting this job ever got"
asciilifeform: ( seems to have variant with numpad nao! but STILL no f- )
mircea_popescu: there's even dedicated "investment" stupid money chasing such "ideas". not as many as there were in the 90s, owing to a lot of unfortunate interactions with various "transhuman" tards past 20 years, but still some.
asciilifeform: https://www.modelfkeyboards.com << linked for compleeetness of thread
mircea_popescu: and then after you start using it people fight for it and there.
asciilifeform: recently there was even a d00d who had entire model f made this way, in a run of 1000 or so
asciilifeform: ( it is -- unsuprisingly -- mostly tooling cost )
asciilifeform: there used to be a club where various folx pooled dough and bought.
mircea_popescu: hurr durr, you're out 10k for the run.
mircea_popescu: superficially it seems like omfg lotta money ; but not so bad. people can afford to make eg icecube trays that retail for 3 bux ie cost a quarter each. how many of those sell ? 10k if you're lucky.
mircea_popescu: the people you linked re "here is what dbl injection is" will actually do exactly that for you, also. it's not THAT expensive.
asciilifeform: prolly if i desperately wanted custom keys, i'd laser the letters and then cast into acrylic.
mircea_popescu: asciilifeform because "stainless steel kbd" is an entertainingly stupid notion ; and what's more it's pecularly stupid in the way your stupid works, i can see it relate to the "fuck you guise, ima live on a boat" and so on. spherical cow sorta approach.
mircea_popescu: asciilifeform yes, you first inlay then shape. this is how it's done.
asciilifeform: i dun actually make keyboards. but did once say 'i'd like a stainless steel kbd' and for some reason the reaction is always 'no have THIS instead'
mircea_popescu: and also it's not a matter of " THIS crackpottery of mine - you lot find interesting, but the stubborn boojum". it's a matter of you being more hysterically terrible ad kbd design than at p design.
mircea_popescu: winder/summer/ and the century floods.
asciilifeform: presumably you would inlay 1st then cut the meniscus.
asciilifeform: though i have nfi how one would do the inlay such that surface is smooth to the touch
asciilifeform: but yes i thought about wooden keys. probably would want a custom milling rig to make'em ( something like a lens maker's lathe )
asciilifeform: to what stress is the picture frame subject ?
mircea_popescu: there's all sorts of options in the hardwoods.
mircea_popescu: nevermind the rolex. and nevermind "humidity" bs, wood is not pine.
ben_vulpes: omfg with the moving of goalposts
asciilifeform: let's ask pete_dushenski if there are wooden gears in his rolex
mircea_popescu: dude get out, every shape can be made out of wood cheaper and faster than ~any other way except for ABS injection.
asciilifeform: ( does N subtractions , N nullity tests, and when modulus is maxint ( and therefore at all times ) it reduces to the classical's cost )
ben_vulpes: i find it very interesting, but do not have anything useful to say on it!
asciilifeform: and ftr mircea_popescu your algo takes at least N times more cycles than the classical.
asciilifeform goes 'wtf, THIS crackpottery of mine - you lot find interesting, but the stubborn boojum that keeps 'p' from happening, not interesting somehow '
ben_vulpes: point stands, don't use decorative materials for the precision tracks
asciilifeform: so long as you get the sproing -- worx
asciilifeform: it dun have to be an actual spring, ftr
ben_vulpes: you said piston, i was imagining fancy tiny pistons with overpressure valves!
asciilifeform: yes, that's what a keyboard is
ben_vulpes: granted i have not seen this piston kb design you've mentioned
ben_vulpes: asciilifeform: why use wood for the piston mating face?
shinohai: Wait, this is faux keyboard, merely shapes stuck on top of keys
asciilifeform: so that it can get stuck in the piston when humidity goes up 5%
asciilifeform: ben_vulpes: so why wood then
asciilifeform: how would you make the meniscus ?
asciilifeform: ( and 'redefine the shape' is not an answer )
asciilifeform: ben_vulpes: how do you propose to make 200+ identical wooden keys with the proper shape ?
ben_vulpes: can even get the inset bit asciilifeform slavers for
ben_vulpes: i think that i would like wood keys.
asciilifeform: 95% of the academitards dun even bother with any attempt other than 'how do i montgomery slightly faster'
asciilifeform currently surrounded by tall pile of -- mostly worthless -- literature re mod mult
mircea_popescu: i'd still take silver myself, if i were doing "metal kbd". not that i would.
asciilifeform: good enough for tokamak, good enough for kbd...
asciilifeform: that's quite ok, make whole thing from it
mircea_popescu: anyway, doesn't mix well with other metals is its main thing.
asciilifeform: monel ( and more recent inconel ) is spiffy unreactive nickel alloy, used in aggressive envir (e.g. molten na reactor tubing)
asciilifeform: no moar than steel 'is' carbon
asciilifeform: nickel is prolly the least biocompatible metal
mircea_popescu: i dunno, maybe. i've little experience with the item.
asciilifeform: well thread was re a hypothetical nothing-spared kbd.
mircea_popescu: because very expensive to work, for instance.
mircea_popescu: for your actual needs, silver kbd much better than steel, if you're going to go metallic (which, not great idea in first place).
asciilifeform: i was thinking of machining but yes
mircea_popescu: i ate off my great-grandfather's set, still clean as the day in 1870 it was made.,
asciilifeform: it will tarnish when full enough of acidic finger oil.
mircea_popescu: asciilifeform silver dun tarnish lol, there's such a thing as proper silver. and it has low melting point and easy to work and it doesn't grow fungi.
asciilifeform: ( the thing is widely used in rsatrons which agree to constrain themselves thusly, but is entirely irrelevant in ffa )
asciilifeform: specifically demands that the modulus be odd, and that it must be greater than either multiplicand.
asciilifeform: reason is that it demands special forms and therefor is not a general-purpose modexp
asciilifeform: incidentally i dun think i've put into the logs why montgomery's modular mult algo is unusable
asciilifeform: everything you've seen in ffa to date, is unrollable into iron circuit.
asciilifeform: ( in heathen world, if the upper bit of one comparand is set, and the other's corresponding bit is not, you stop right there )
asciilifeform: this was probably obvious to everybody tuned in, but bears restating.
asciilifeform: comparing (or subtracting) 0 and 0 takes same time as maxint and maxint or maxint and 0 etc
a111: Logged on 2017-09-12 23:11 mircea_popescu: 2. a fine example of how "i work for the web man" rots the brain, is that in an implementation of the above discussed mod-distributiver, the "common" consensus impulse would be to add a test, make sure the list elements respect the condition of <modulus. this however is very much the wrong thing ; and it is a tmsr-graduate level question to explain why and wherefore.
asciilifeform: http://btcbase.org/log/2017-09-12#1713184 << in ffaworld, a < or > or == comparison is not only a subtraction (O(N)) but another O(N) test for nullity (xor all the words together) ☝︎☟︎
a111: Logged on 2017-08-10 19:45 asciilifeform: forn00bz: an, e.g., rsa modexp, in ffa, must be representable by a long roll of paper, on it are ops for ordinary 4function calculator, with very patient slave. and roll ONLY ROLLS FORWARD and has finite # of instructions on it, known in advance when you decide the ffa width.
asciilifeform: ( and http://btcbase.org/log/2017-08-10#1696834 probably being canonical statement thereof ) ☝︎
a111: Logged on 2017-09-12 23:12 mircea_popescu: and finally 3. the item there described is not exactly a function. it rather something i'd call a mechanism, a discrete item that does a fully defined thing. as we're looking more and more through ada eyes and constant time things and so on, a study of these mechanisms as an distinct category will prolly be useful. somewhere between conway's cells and commandline utils, they are.
asciilifeform: http://btcbase.org/log/2017-09-12#1713185 << the 'mechanism' is... algebra ( see also http://btcbase.org/log/2017-08-10#1696309 etc ) ☝︎☝︎
asciilifeform: mircea_popescu: silver tarnishes and has abysmal mechanical properties and why
mircea_popescu: run of the mill pantsuit idiocy, but then suddenly "Es que en Rumanía todos se llaman Mircea Popescu. ¿Sabes?"
mircea_popescu: and finally 3. the item there described is not exactly a function. it rather something i'd call a mechanism, a discrete item that does a fully defined thing. as we're looking more and more through ada eyes and constant time things and so on, a study of these mechanisms as an distinct category will prolly be useful. somewhere between conway's cells and commandline utils, they are. ☟︎