log☇︎
416400+ entries in 0.281s
assbot: Prepare for the Playa Police [Update] | Burners.Me: Me, Burners and The Man ... ( http://bit.ly/1PrtJtw )
shinohai: I hope that somewhere in the AM data, it is revealed Josh Duggar snorted coke off of a tranny's cock.
punkman: shadowsocks makes your tunnels look like traffic that's not blocked
punkman: mircea_popescu: is that trolling ? << chinese problems
mircea_popescu: "A totalitarian society which succeeded in perpetuating itself would probably set up a schizophrenic system of thought, in which the laws of common sense held good in everyday life and in certain exact sciences, but could be disregarded by the politician, the historian, and the sociologist."
mircea_popescu: is that trolling ?
assbot: [Guide] Surviving the fork, or How to double your bitcoins (or save fiat) ... ( http://bit.ly/1UZiOLr )
mircea_popescu: you know, they speak casually of how the bitches they know're gonna introduce the new ones. except... all this is a work of feverish imagination.
mircea_popescu: http://www.gutenberg.org/files/4281/4281-h/4281-h.htm turns out it's from the us, an early attempt at mommy blogging.
mircea_popescu: da fuck is this, never heard of it.
mircea_popescu: "The reappearance of HELEN'S BABIES, in its day one of the most popular books in the world–within the British Empire alone it was pirated by twenty different publishing firms, the author receiving a total profit of £40 from a sale of some hundreds of thousands or millions of copies–will ring a bell in any literate person over thirty-five."
mircea_popescu: not that experience to date indicates this as likely.
mircea_popescu: cuz i might want to be able to distinguish orwell from orlov
asciilifeform: see also the 'rating folks not in wot?' and 'branding a snake' thread
asciilifeform: (also serial #s tend to work poorly unless reliably tattooed on.)
asciilifeform: let the rousseaus bite one another's ears off, fighting over who is rousseau.
asciilifeform: what next, serialize the ants in the anthill ?
asciilifeform will soon learn what, if anything, ru academiderpers did re: crypto in '90s, among other things.
asciilifeform learned, perhaps to his grief, on account of phf (shame on you!) that 'ozon' now takes shitpal. now bought a container of fresh b00kz, aha.
asciilifeform: orcs only need to be distinguishable from one another quickly & reliably.
asciilifeform: orcs can grunt to one another whatever names they like, but only men get unique name
asciilifeform: (were issued serial #s, tatooed on)
mircea_popescu: because it's where it's headed anyway, and why the fuck wait.
mircea_popescu is tempted to deed a list of key,values of names of various people and start referring to people as "Primitive Man AFMrikO2o3Ka2pcpZ" instead of "Obama" or "Jean Jacques Rousseau" or whatever.
phf: for the curious ftp://ftp.pgpi.org/pub/pgp/2.x/doc/pgformat.txt, http://www.spinnaker.com/crypt/pgp/pgp26ui/pgp26uis.zip (src/crypto.c:1289)
phf: g the wrong RSA key." message format spec explains "First 2 bytes of the Message Digest inside the RSA-encrypted integer, to help us figure out if we used the right RSA key to check the signature."
phf: so to continue this archaeological dig, GPG 2.6 clarifies the usage of 2 octets. reads the header, reads the rsa ciphertext, decrypts rsa. rsa contains a digest of some fields from header and the body of message. so first thing he does next is check the first 2-octets of digest againts the 2-octets in header. if the two don't match program bails with "Error: RSA-decrypted block is corrupted. This may be caused either by corrupted data or by usin
asciilifeform: (modern gpg does not sign only the 16)
asciilifeform: mod6: see thread
mod6: asciilifeform: ... if you regenerate the 'orchestra' patches with new vdiff, i will sign'em. otherwise might have to wait a while << hey, no problem. I'll start in on this sometime tomorrow probably.
thestringpuller: dunno if asciilifeform is talking about human female, or some random puppy he has.
phf: i actually forgot that you were working on gnupg source for cardano
asciilifeform off for a spell, to play with pet.
phf: oh? i missed that, i think that's before i started to read closely
asciilifeform: it is not a secret, i think, that i am working on a somewhat similar book.
phf: surprisingly hard to get a copy
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: this item was published by mit press to get around clinton's export laws
phf: yes, trying to see what he was doing with signatures there
asciilifeform: realize that this has nothing at all to do with modern gpg...
asciilifeform: reading c is more like being beaten with telephone books, vs cpp's bicycle chains
phf: incidentally after bitcoind gnupg source is pleasure to read
phf: (so it's not compare. they run a digest on payload while reading (or separately if detached), then they run digest on own reconstruction of header, then they finalize the digest and do sig verification of provided signature against the digest that they calculated)
asciilifeform: at this point anybody can turn the handle
asciilifeform: ;;later tell mod6 if you regenerate the 'orchestra' patches with new vdiff, i will sign'em. otherwise might have to wait a while
mircea_popescu: ;;google "pentru ca esti o vita spastica si te uraste soarta"
asciilifeform: but does ~everything~ have to break into dust in my hands.
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
mircea_popescu: and if youy for some incomprehensible reason MUST use a hybrid scheme, use the following : 1. generate random 4096 hash ; 2. cut your message up into N chunks of size up to 2048 ; 3. xor the chunks with 1; encrypt each chunk via rsa
asciilifeform: (depending on what method of 'padding' - fucking hate this name! - is used)
asciilifeform: just pointing out that you can't stuff n bits of payload into signature (or encipherment) with modulus length n.
mircea_popescu: yes. but none of these actually requires a hybrid scheme
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
mircea_popescu: (and i maintain that in all context hybrid encryption is retarde dwithout exception. either fuck or get off the woman.)
mircea_popescu: i wasn't at any point contemplating "rsa encryption = rsa run once over the message herp"
asciilifeform: 'pad' is a bit of a misnomer in the parlance
mircea_popescu: hash is also the pad
asciilifeform: (that is, permutation of the item to be signed)
mircea_popescu: make the damned thing match throughout. bapg = 4096 rsa, 4096 hash, etc.
mircea_popescu: actually. is there a 4096 bit hash function of any merit ?
asciilifeform: (but, how many folks would accept signatures that are 2x the length of the payload !)
asciilifeform: and someone asked, 'but do we ~have~ to rely on hash'
asciilifeform: hence how hash came to be used in asymmetric signing
asciilifeform: he says 'long messages' on account of the impossibility of signing an integer longer than the public modulus
mircea_popescu: no in the quote.,
asciilifeform: to know how many bytes to read ?
asciilifeform: in the rfc?
mircea_popescu: wtf is that
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
phf: logic looks like "read a bunch of things", "hash data", "put relevant bits into an in memory copy of the header", "hash in memory copy", "compare"
phf: i'm mostly curious if my guess about the purpose of the field was correct, but no insight from gpg
phf: asciilifeform: i'm failing to see the clusterfuck part
asciilifeform prepares vivisection table
asciilifeform: it would mean that an existential signature forgery is trivial
mircea_popescu: "let's do things to things for reasonds"
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 ?!!
mircea_popescu: phf yeah it's not actually as bad as it seemed on the basis of the snippet. still crud.
phf: so for the curious it doesn't look like 1.4.19 uses the two-byte hash value anyway. it reads it from disk, it populates it during sign and it can write it to disk, but no actual logic done using it
assbot: Logged on 22-08-2015 01:11:30; mircea_popescu: never, inb the entire history of reichs, was this the case. not once.
asciilifeform: what would a counterexample to hypothesis http://log.bitcoin-assets.com/?date=22-08-2015#1247994 look like ? ☝︎
mircea_popescu: only some may have. government's not on the list.
asciilifeform: so no 'have' until firing on the battlefield ?
mircea_popescu: it "had" it. suppose there's madonna burried in your back yard
mircea_popescu: i dunno dood. but once i figure it out i'll make the computer do what you mean.
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: can begin to think of attack, without ever actually modularly exponentiating anything
mircea_popescu: no. that wasn't their problem.
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.
mircea_popescu: that dumbfuck rice "had" the airplane thing, too.
asciilifeform did not watch mr cocks discover it, so cannot say that it is a fact
asciilifeform: recall who had rsa transform in 1976 ?
mircea_popescu: never, inb the entire history of reichs, was this the case. not once. ☟︎
mircea_popescu: your notion that hitler's ahead of the curve is spurious.