log☇︎
184200+ entries in 0.055s
asciilifeform: straight from pelevin's 'orcs'
asciilifeform: l0l!
asciilifeform: (modern gpg does not sign only the 16)
asciilifeform: mod6: see thread
asciilifeform: 'spreading works, eating - not yet'
asciilifeform: mod6: neat
asciilifeform only has 1 pet
asciilifeform off for a spell, to play with pet.
asciilifeform: two, in fact.
asciilifeform: it is not a secret, i think, that i am working on a somewhat similar book.
asciilifeform: http://www.openresource.com/news/P/PGPSCI.shtml << notice how mit's site no longer contains it.
asciilifeform: http://www.ka9q.net/export/zimm.html << on the subject.
asciilifeform: i thought this was well-known.
asciilifeform: the book came with instructions re: how to ocr the thing back, and build!
asciilifeform: and famously subject of a court proceeding
asciilifeform: this item was published by mit press to get around clinton's export laws
asciilifeform: realize that this has nothing at all to do with modern gpg...
asciilifeform: phf: zimmerman ?
asciilifeform: reading c is more like being beaten with telephone books, vs cpp's bicycle chains
asciilifeform: just a duller pain
asciilifeform: though i would disagree re: 'pleasure'
asciilifeform: phf: naturally, no cppism
asciilifeform: aha
asciilifeform: at this point anybody can turn the handle
asciilifeform: or hanbot, or mircea_popescu, et al
asciilifeform: ;;later tell mod6 if you regenerate the 'orchestra' patches with new vdiff, i will sign'em. otherwise might have to wait a while
asciilifeform: approximately.
asciilifeform: srsly, fucking 'diff'.
asciilifeform: but does ~everything~ have to break into dust in my hands.
asciilifeform: for use in a certain little device, yes.
asciilifeform has been living with all of this, in today's thread, and more, while working on the inevitable ada bignumtron and rsatron.
asciilifeform: then again, i'm not winning any prizes for knowing the answer to this.
asciilifeform: btw i am still trying to figure out why the existing 'padding' algos are so asininely complex
asciilifeform: (depending on what method of 'padding' - fucking hate this name! - is used)
asciilifeform: in practice, on account of a+b - fewer.
asciilifeform: just pointing out that you can't stuff n bits of payload into signature (or encipherment) with modulus length n.
asciilifeform: 'course not.
asciilifeform: the purpose of 'padding' is to a) never have transform of known input deterministically give same output b) prevent arbitrarily flipped bits of ciphertext from yielding a valid (attempt to eat) message
asciilifeform: easily.
asciilifeform: !s rsa padding
asciilifeform: 'pad' is a bit of a misnomer in the parlance
asciilifeform: (that is, permutation of the item to be signed)
asciilifeform: gotta leave some room for 'pad'
asciilifeform: not as such.
asciilifeform: (but, how many folks would accept signatures that are 2x the length of the payload !)
asciilifeform: and quoted interlocutor answered, 'no but stfu'
asciilifeform: and someone asked, 'but do we ~have~ to rely on hash'
asciilifeform: hence how hash came to be used in asymmetric signing
asciilifeform: using naked rsa.
asciilifeform: he says 'long messages' on account of the impossibility of signing an integer longer than the public modulus
asciilifeform: to know how many bytes to read ?
asciilifeform: in the rfc?
asciilifeform: because lulzy.
asciilifeform: for the record.
asciilifeform: 'well, one could devise methods for signing long messages that don't involve hashing, such as splitting up the message into small segments, tie each segment together with an identifier and a segment sequence number, and sign each individually. However, hashing works so much easier that no one ever considers an alternative.' << quoted verbatim from shit-overflow
asciilifeform: it isn't 'compare' though
asciilifeform prepares vivisection table
asciilifeform: it would mean that an existential signature forgery is trivial
asciilifeform: phf: am i catastrophically missing something, (i didn't sleep much), or is this an even greater clusterfuck than if the 16bit were used ?!!
asciilifeform: what would a counterexample to hypothesis http://log.bitcoin-assets.com/?date=22-08-2015#1247994 look like ? ☝︎
asciilifeform: so no 'have' until firing on the battlefield ?
asciilifeform: l0l
asciilifeform: either the legend of mr cocks is disinfo (i cannot rule this out at all) or usg had rsa before rivest, shamir, adelman.
asciilifeform: what am i missing
asciilifeform: ?#1, ?#2 ?
asciilifeform: can begin to think of attack, without ever actually modularly exponentiating anything
asciilifeform: but for cryptoanalyst, it is actually not useless to 'have' a paper-and-pen unimplementable algo
asciilifeform: no one 'had' in the modern sense until the cheap micro, sure.
asciilifeform: clifford cocks.
asciilifeform did not watch mr cocks discover it, so cannot say that it is a fact
asciilifeform: or what, was disinfo ?
asciilifeform: recall who had rsa transform in 1976 ?
asciilifeform: why?
asciilifeform: how does it help anybody (other than hitler), including mircea_popescu, when hitler knows for certain, but everybody else is left to mathematicize fruitlessly (or, worse, work on faith)
asciilifeform: based on available evidence.
asciilifeform: can't rule out that even 20 yrs ago hitler knew that factoring is np-complete.
asciilifeform: i would like an asymmetric transform whose complexity were provably unknowable. that would be spiffy.
asciilifeform: see, i could even agree re: ~provably unknowable~ (i.e. godelian) unknowns. if these could be had. but 'unknown uknowns' inescapably shed the first 'unknown'
asciilifeform: is the idea that enemy wastes resources on cryptoanalytic derp vs setting up coke machine dungeon ?
asciilifeform: how does this beat 'proven np-complete and the lowliest amoebic scum knows' ?
asciilifeform: hitler rediscovers the proof. then what
asciilifeform 's throat is not big enough for this pill
asciilifeform: l0l!
asciilifeform: does mircea_popescu remember what means 'np-complete' ?
asciilifeform: how;s that work
asciilifeform: ??
asciilifeform: (most academitards neglect the second part!)
asciilifeform: while also proving that none of the 'practical' aspects of employing the transform, leak key.
asciilifeform: to round off the thread, imho the 'holy grail' of asymmetric crypto is to demonstrate ~provably measurable strength~ - that is, prove np-completeness of inverting the transform.
asciilifeform: spiffy bunker
asciilifeform: aha, this.
asciilifeform: mircea_popescu is of course right. snowdenball's chance in hell
asciilifeform: (and would be picking up fields medal or whatever remaining civilized equivalent is)
asciilifeform: could, if could prove np-hard.
asciilifeform: but it is worth understanding what the cost of 'infinitely rigid girder' is.
asciilifeform: nobody said 'go back to latrine', aha.
asciilifeform: this is the 'infinitely rigid girder.' in practice, all girders meaningfully differing from this one have provably finite rigidity.
asciilifeform: then separated.
asciilifeform: not a weakness. generated by two units connected together in sealed, grounded copper container.
asciilifeform: that it is not aesthetically pleasing is not a weakness.