103600+ entries in 0.024s
mircea_popescu: let's consider the case where i want to exchange a 1kb letter. i won't actually use 1mb to feed the tape, but i will use 4kb.
mircea_popescu: the thing here however is, that incremental improvement may actually be useful. ie, a ~better~ encryption scheme, even if not ~provably the best~.
mircea_popescu: no, we're clear on the part where it's pretty expensive.
mircea_popescu: suppose you actually use the payload itself sqrt(payloadsize) times.
mircea_popescu: ok, let's go at it another insane way. suppose you pad the message by using... the message as the tape.
mircea_popescu: this is also true. problem with it is that it's so damned long.
mircea_popescu: well, because this way T.p is slightly but not much longer than T.
mircea_popescu: i will now proceed to create a string S += hash(S+1011101011) three times. << i mean.
mircea_popescu: i will now use S as a tape for the automaton to be applied to T.
mircea_popescu: i will now proceed to create a string S += hash(1011101011) three times.
mircea_popescu: message you want padded is T. i roll a random number, it comes out 1011101011 10
mircea_popescu: i dunno, i have no actual math to show, but intuitively it seems to me the above "take 64 bytes of rng, iterate hash over the first 60 last 4-times and then use that as tape to pad message, then put padded message + 64 bytes in question in rsatron" is practically useful and theoretically strong.
mircea_popescu: and the tendency is to move towards whole thingers, hence eg the keccak preference
mircea_popescu: the whole discussion of blocks vs whole thing is all about this.
mircea_popescu: if your blocks are of known size, then they're of known size.
mircea_popescu: the problem is it bloats the message to an incredible size ; which plays poorly with rsa's weakness (slow)
mircea_popescu: it seems to me you can ~actuyally implement~ extant padding schemes in this automaton.
mircea_popescu: asciilifeform but that's my question, the above is actually what rsa currently uses.
mircea_popescu: asciilifeform what if i use the following scheme : message padded + 60 bytes of padding key + 4 bytes of iteration count. the tape is producing by doing sha recursively on the padding key and its results iteration count times.
mircea_popescu: to my mind the only reason to have 1d is if you're going to try and emulate block cyphers ie make it fixed size.
mircea_popescu: asciilifeform let me ask you this : suppose the tape is byte-sized, and the 8 bits are as follows : 2 bits x movement ; 2 bits y movement ; 2 bits z movement ; stop and flip bits for a total of 8. the tape is now a space.
mircea_popescu: but the space gets pretty narrow. 3n, you shoot n^(1/2) messages you're suddenly losing
mircea_popescu: if the message is n long, does the pad-machine tape need to be n^2 ?
mircea_popescu: asciilifeform would this be better if tape were circular and of size to match our blocks ?
mircea_popescu: so wait, the plan is a) make integer ; b) convert to automaton tape ; c) use that tape as padding ?
mircea_popescu: the diophantine approach above + the "transfinite induction" / von neumann set are pretty much the scylla and charybdis of this sea.
mircea_popescu: anyway, practice of programming, especially in a reasonably clean environment, possesses one of a notion of recursion that is then a fertile ground for mathematical scamming.
mircea_popescu: the general point being, that the mind is not particularly adept to ~counting sets~ (including and especially in the sense of "Evaluating complexity") which is why it's very easy for it to misjudge the reach and power of recursive methods.
mircea_popescu: nah, it's just to my mind the next logical step after wtf are null sets anyway.
mircea_popescu: asciilifeform the whole thing was "extension of discussion of basic logic to set theory for the eager minds"
mircea_popescu: (it was proven sometime recently omdeed diophantine sets is ~ recursively ennumerable sets, making this a semidecidable problem)
mircea_popescu: ie, that it ~feels~ like the problem should have a recursive solution.
mircea_popescu: asciilifeform it's exactly that, restated to discourage googling. the point being that it is difficult to correctly set the limits of recursion's utility intuitively
mircea_popescu: individually. like the list could be x^2 = 4 ; x = 1 ; x ^ 3 + 5 = 6 - in which case your arbitrary equation may be a polynomial in x but not in x y
mircea_popescu: 1) you can have a list of equations that do have solutions ; 2) that if your list only contains X Y and Z unknowns, then the arbitrary item won't contain Q unknown
mircea_popescu: table stakes keep increasing ; but the good news is they also keep diversifying.
mircea_popescu: the most amusing jewish joke in all this - lo, trump MADE A GOOD JEWISH JOEK. this is infinitely harder than the supposed "witty self-deprecation" imbeciles gathering in new york think funny
mircea_popescu: (laugh but this happened - TWICE. both national socialism and leninist socialism did this.)
mircea_popescu: he already has a house there. most of these are appointments of convenience, like making serial rapist head of rape dept.
mircea_popescu: best way to handle bureaucracy is to force it to spend its time handling itself.
mircea_popescu: it's not just that the guy's ~not~ part of embassy usg. it's that he's a) pissed publicly on the very faces of the kids of the helicopter moms that make up embassy usg and b) is independently wealthy / intelligent enough to not give the slightest shit about them and their wine parties.
mircea_popescu: well the cheapest thing is to not use one in the first place
mircea_popescu: anyway, usually it's glass laminate / policarbonate in layers.
mircea_popescu: in fact the most dangeroius rounds aren't the outer (ie, very fast) but the inner (ie, just slow enough to spall the shit out of you)
mircea_popescu: you can jump into a pool ; but if you go fast enough it's concrete not water. same thing with shooting - adding speed does not actually help. even if you can drill it.
mircea_popescu: so no, sabot or no sabot you're not shooting through the (tiny ass btw) windows.
mircea_popescu: the thing with it is it's layered, no matter the impact energy you get refraction because of the medium variance.
mircea_popescu: the reason is that same old mc^2 ; there's no better heat dampener than water nor better energy dampener than mass.
mircea_popescu: in bulletproofing there's really no substitute for mass.
mircea_popescu had bulletproof car, cost ~3.5x what same exact car make and everything cost.
mircea_popescu: asciilifeform bulletproof is extremely expensive logistically.
mircea_popescu: pete_dushenski hey, they're on the path of recreating a post-enlightenment history in which females actually matter, what's a movie compared.