asciilifeform: otp has precisely three weaknesses even in principle: generation of key (solved by civilized rng); reuse of key (solved by erasing each bit immediately after it is used in a xor); capture of key by enemy (in common with any other cipher! and solved with grenade pin)

asciilifeform: !s antifuse

asciilifeform: plugged into the 'grenade pin' of course.

asciilifeform: to complete this story, i will add a diode on each antifuse and a collective rail to blow'em all

asciilifeform: why not mail straight to hitler.

asciilifeform: phf: mailing, wtf

asciilifeform: unless operator is a moron, and uses it other than as prescribed, device is a true otp.

asciilifeform: call it, if you like, 'read-once' ram.

asciilifeform: problem solved.

asciilifeform: use a bit once, then blow the antifuse it lived in.

asciilifeform: mircea_popescu: practice, fortunately, is not hard to fix.

asciilifeform: (otp, or however it is called in each of our kindergarten textbooks.)

asciilifeform: the closest thing we have is the vernam pad.

asciilifeform has searched for such a girder for quite some time.

asciilifeform: even in rsa.

asciilifeform: hence we have no mega-magicalgirder.

asciilifeform reminds mircea_popescu that factoring has not been proven np-hard much less np-complete

asciilifeform: phf, mircea_popescu: how, if the layers use distinct keys, each en-rsa'd separately ?

asciilifeform: but not infinitely rigid.

asciilifeform: can make thicker, or thinner

asciilifeform: block cipher gets 'solved' no more than steel girders can be 'solved.'

asciilifeform: (for separate layers)

asciilifeform: tards use same key, yes

asciilifeform: (knowing weak keys in aes does not break the message if under it is, e.g., twofish, with DISTINCT KEY)

asciilifeform: it helps in precisely the same way as multiple parachutes

asciilifeform: 'why the fuck is there no provision for multilayer use of multiple blockciphersystems'

asciilifeform: while we're at it, copying in from my handwritten 'pgp is retarded' notebook,

asciilifeform: mircea_popescu: weren't you the one with the 'why do we need block cipher at all' concept ?

asciilifeform: nobody wants to see what is under that garden.

asciilifeform: this is likely why so few with the shovels

asciilifeform always, always regrets what he finds.

asciilifeform: 'Most OpenPGP software use 64-bit keyids internally, and rely on 64-bit keyids present in issuer id packets.' < ahaha.

asciilifeform: punkman: aha, old nyooz

asciilifeform: mircea_popescu: l0l, i get this: http://webkind.ru/text/989416971_946024927p581069957_text_pesni_n-ai-fost-acolo.html

asciilifeform: 'The concatenation of the data being signed and the signature data from the version number through the hashed subpacket data (inclusive) is hashed. The resulting hash value is what is signed. The left 16 bits of the hash are included in the Signature packet to provide a quick test to reject some invalid signatures.'

asciilifeform: (with some success, as i gather)

asciilifeform: fingerprint collision diddles, entirely other castle wall scaled by orcs

asciilifeform retreats to the mathematical room

asciilifeform: but can now formulate the equation.

asciilifeform: not trivially, no.

asciilifeform: but i can think of a pretty good illegitimate one.

asciilifeform: me neither.

asciilifeform: punkman, mircea_popescu: can you think of any ~legit~ reason to store only 16 bits of the hash that was signed ?

asciilifeform: mats: and this is still done in mechanical hdd design, see 'elevator' algo.

asciilifeform: !s minuteman

asciilifeform: mats: see also:

asciilifeform: mircea_popescu: think.

asciilifeform: punkman: think.

asciilifeform: actually coincident

asciilifeform: in my head, with pencil

asciilifeform: slowly scribbling on it, laying out out

asciilifeform: i've been walking around with a bound hardcopy of that thing for most of a year

asciilifeform: but yes, you can guess how i arrived at this tidbit.

asciilifeform: i will wait for one of you lot to point out where i somehow am mistaken.

asciilifeform brainmelt

asciilifeform: sit and think about this for a minute.

asciilifeform: in effect.

asciilifeform: motherfuckers.

asciilifeform: WE'VE BEEN SIGNING 16-BIT HASHES

asciilifeform: or do i have to draw the picture here.

asciilifeform: obvious yet?

asciilifeform: rfc4480 sayeth, '5.2.3. Version 4 Signature Packet Format.... [buncha crud snipped] ... Two-octet field holding the left 16 bits of the signed hash value. One or more multiprecision integers comprising the signature. ...'

asciilifeform: since nobody said it...

asciilifeform: http://log.bitcoin-assets.com/?date=21-08-2015#1247703 << court did not impose peine forte et dure ?! that's how it used to work.. ☝︎

asciilifeform: and terrifying.

asciilifeform: incidentally there is an implication of this, which ought to be obvious

asciilifeform: (it lacks the complete hash!)

asciilifeform: where a pgp signature is so retardedly structured that it cannot be verified at all without the original matter

asciilifeform: i spoke of this earlier today;

asciilifeform: the only way to sign without imposing structure on the matter signed, is detach.

asciilifeform: can read detach-signed document.

asciilifeform: http://log.bitcoin-assets.com/?date=21-08-2015#1247726 << it's concept-broken, not implementation-broken ☝︎

asciilifeform: http://therealbitcoin.org/ml/btc-dev/2015-August/000152.html << congrats mod6 on signing the ~correct~ genesis

asciilifeform: l0l!!!

asciilifeform: !up ascii_field

asciilifeform: !up ascii_field

asciilifeform: !up ascii_field

asciilifeform: !up ascii_field

asciilifeform: !up ascii_field

asciilifeform: !up ascii_field

asciilifeform: !up ascii_field

asciilifeform bbl

asciilifeform: what a peculiar fishwrap. i read, for instance, the linked piece, http://motherboard.vice.com/read/how-bitcoin-could-make-distributing-a-universal-basic-income-actually-possible -- and kept waiting for the mention of where they plan to steal it... didn't see one

asciilifeform: http://motherboard.vice.com/read/bitcoin-core-devs-in-civil-war-insist-were-not-getting-the-whole-story << mega-lulz

asciilifeform: (or to start ?)

asciilifeform: ;;later tell mircea_popescu http://bitcoinist.net/bitpay-favor-merging-bip-101-bitcoin-core << >> time to stop feeding them ?

asciilifeform: l0l!

asciilifeform: at this may be an emergent behaviour.' ☟︎

asciilifeform: 'We describe three new occurrences of the sexual coercion of king penguins (Aptenodytes patagonicus) by Antarctic fur seals (Arctocephalus gazella) on sub-Antarctic Marion Island. These recurrent observations follow a common pattern where the seal chases, captures and mounts the penguin, followed by copulation attempts. These observations are similar to a previously published observation from the same island, and we suggest th

asciilifeform: kakobrekla: i see garbage

asciilifeform: nah it's him hammering the ground with his face (falling down drunk)

asciilifeform: complain to them, not me, l0l

asciilifeform: mircea_popescu: http://log.bitcoin-assets.com/?date=21-08-2015#1246988 >> i was taught that english call this item 'macaronic poem.' in my mind, the iconic instance is pelevin's 'my sister, do you still recall как Ельцин бился мордой в пол ?' ☝︎

asciilifeform: and ask 'what closes circuit' ?

asciilifeform: it is lulzy to show this gadget to students/n00bz with a piece of metal uncontacted by any ground on the other side, and nice tall spark

asciilifeform: as in, while tesla still lived.

asciilifeform: BingoBoingo: the basic concept was introduced in early '40s and not changed since.

asciilifeform: just picture trying this in usa!!

asciilifeform: ^ 'toy. for children 8-16 years.'

asciilifeform: l0l!!!!