log☇︎
94500+ entries in 0.056s
asciilifeform: ( so far errything he said, such that asciilifeform was able to probe, turned out to be troo. if he's a liar, he's a very high-quality liar )
asciilifeform: the 'PINMUX' bit suggests that the informant d00d was telling the truth, thing indeed controls vreg bringup, at least the 3.3v rail
asciilifeform: https://chromium.googlesource.com/chromiumos/platform/ec/+/master/board/cr50/gpio.inc << claims to be the i/o mapping .
asciilifeform: i have reasons to suspect that if it indeed has anything to do with the physical item, it is only partial picture.
asciilifeform: https://chromium.googlesource.com/chromiumos/platform/ec/+/master/board/cr50/ << for threadcompleteness -- the purported src.
mircea_popescu: holy shit i'm not waiting that long for nudies.
phf: worse case he'll just fail, but probably at the limit of what he can do
mircea_popescu: let those "warrants" fly
phf: i'm sure a russian with an electron microscope would love nothing more than do a careful job on a bonafide fritz chip
asciilifeform: but know what, i'ma lift it before throwing out whole board, for phf
phf: asciilifeform: no need to, i have all the relevant bits, just need to package them for you
asciilifeform: and bolix is a 2um; this thing is prolly 22nm
asciilifeform: phf: they ever did the bolix?
mircea_popescu: understand, the cost of failure here is minimal.
mircea_popescu: something like that.
phf: asciilifeform: smash it out carefully, could mail it to zeptobars, maybe get some idea what sort of beast we're dealing with..
asciilifeform: it's the kbd cobtrolr
mircea_popescu: usb kbd ? short the powerline ?
a111: Logged on 2018-06-07 20:47 mircea_popescu: pshaw. i'm willing to pay for the board this is tested on.
mircea_popescu: yes. which is also why i think this is where the levee should break
asciilifeform: ( why even keep the orig ec )
asciilifeform: has the appearance of a hasty and gnarly glue job
asciilifeform: pretty strange, that they put the kbd through both
asciilifeform: hard to say without schems or xray
asciilifeform: not single line, seems to handle the keyboard matrix also ( for reset combo ) and possibly vregs also
asciilifeform: vertical integration is a thing, google bought a few power plants; but afaik not fab yet
mircea_popescu: anyway, back to it : the cp50's point of interest is, that it has a connection to power button. this is a single line, is it ?
asciilifeform: stamp reads TWN , taiwan
mircea_popescu: they exist out of "mandating" ie, posturing what the actual people should od.
mircea_popescu: nor either of these has the mental acuity to fab.
mircea_popescu: neither of these have fabs.
asciilifeform: quite likely, the fella was telling the truth, it's a google.nsa die
asciilifeform: but this tells us ~nothing to narrow it
phf: this is the kind of stuff phrack was supposed to talk about, but meanwhile the community was gutted..
asciilifeform: fw (or what claims to be the fw, i cannot verify re actual iron) is a c proggy, for what looks like an arm
mircea_popescu: i was hoping maybe the firmware might indicate.
asciilifeform: i've been looking for it since it was first mentioned in last wk's thread with the d00d
phf: right, i did try mouser/digikey first
asciilifeform: google had various crapola fabbed in the past, it wouldn't be a first
asciilifeform: if it's a shelf chip with title sanded off, neither i nor apparently anybody else knows which
mircea_popescu: so then cr50 is the firmware, and the hardware is actually some kind of bulk chip ?
a111: Logged on 2018-06-07 21:03 asciilifeform: it is called cr50. also seems to go by 'h1 secure microcontroller'
phf: no no, i'm trying to clarify the sort of embarrassed i felt when i read his blog. but in the case of russians it was misunderstanding, in this case though it's something else entirely..
phf: i mean, it's a different scenario, but that must be the feeling americans felt in the situations like that
phf: it reminded me of how sometimes russian academics had problems with their american peers: some of those russians learned english from VHS, so found it acceptable to use ebonics in speech.
mircea_popescu: scoff all you want, but as burl ives put it, "it's always there in the morning, ain't it".
a111: Logged on 2018-06-07 20:50 deedbot: http://trilema.com/2018/martin-cracauer-is-a-fucking-moron/ << Trilema - Martin Cracauer is a fucking moron.
phf: "hey guys why don't we publish the secret chip bypass? -- what are you, some kind of terrorist/tinfoil??"
phf: and as much as i sometimes scoff at the lizard hitler suggestion, the whole narrative, tacitly supported by the relevant designer, is very much it.
a111: Logged on 2018-06-07 20:41 asciilifeform: ok, d00d left; https://archive.li/FFROT << whole thread snapshot.
phf: http://btcbase.org/log/2018-06-07#1821238 << crafty little strategy "we built a device with an open EC" "..." "we now have a sikrit cheap making sure our EC is not too open" ☝︎
asciilifeform: anyway it is asciilifeform's teatime, and so i'ma bbl, inclined folx can puzzle over this puzzler .
asciilifeform: even supposing that cr50 were cleanly removable (the designers would have to be idiots, to make it cleanly removable, really)
asciilifeform: this approach threatens to turn the project into 'phd assembly line', sorta half the point of this machine was that it could be conjured up from the konsoomer shelf version with 10min of effort and 100% yield
asciilifeform: i can heat it to 400C and pull it off the board and see if power still goes ( chances are , it won't, d00d was telling the truth re other boobytraps previously ) , but that's about it.
asciilifeform: the problem is that i cannot answer any useful question about it other than at brainmelting expense ( see the bolix thread ).
asciilifeform: at any rate, if d00d was telling even half the truth re 'we had a cpld, in prev machines, and moved it, among else, to cr50 when we got to make own die' then it prolly is not a standard konsoomer loltron.
asciilifeform: the #1 choice of tardano vendors, certainly
mircea_popescu: which, afaik, is the most widely deployed fritzchip in empire.
mircea_popescu: hey, at least it mentions the atmels insistently.
asciilifeform: mircea_popescu: link is generic sad, orcish technicum curriculum, doesn't seem to have any useful connection with subj
asciilifeform: the chip itself does not match the description of any old fritztron familiar to asciilifeform (e.g. infineon's, intel's)
mircea_popescu: interesting link btw. what is this, the indians are taking over the usg "compliance" part altogether ? to the point the blather is taught in india but not us ?!
asciilifeform: they also distribute a ball of src which they ~claim~ (unverifiably, afaik, see thread) runs in it.
mircea_popescu: and there's not THAT much to buy.
mircea_popescu: i do not beleive it is. i expect they just bought something.
asciilifeform: ( they dun have, afaik, a fab, the 'TWN' suggests they contracted out to e.g. infineon )
mircea_popescu: are you basically saying this is not an ennumerable class ?
mircea_popescu: i went through list of jtag-sitters, saw that and whatever atmel bs.
mircea_popescu: i dunno, i'm trying to figure.
asciilifeform: it is called cr50. also seems to go by 'h1 secure microcontroller' ☟︎
mircea_popescu: what's the full name of this cr50 item btw ?
asciilifeform: let's recall that the whole thing is an exercise in junkyard wars, i can only stomp the obvious cockroaches
mircea_popescu: i don't explain the cockoraches, mr alfstein. i just exterminate them.
mircea_popescu: asciilifeform, my suspicion is that your "no cr 50" will simply mean "they put it in the die of a diff ic, and you can't find it"
asciilifeform: or is the idea that the 2015 is fraudulently labeled, and really made last month ?
asciilifeform: why would 2015 box have it in the die, but 2017 external ?
mircea_popescu: "oh, use this other one instead, terrorist, as you seem hell bent on breaking the chip off. this other one has it in the die, so you can't see it, will be all good"
asciilifeform: recall thread where mircea_popescu explained to a n00b, 'even when typhus epidemic rages, does not excuse you from washing hands' ?
asciilifeform: afaik most simply shove it into the cpu die.
mircea_popescu: so no, you're not going to find "a board without". you might find one where it's poorly attached and can be hammered off. but that's all.
asciilifeform: erry device maker gets own variant, to keep life interesting
mircea_popescu: i expect they're mandated in all usg-"technology" since many years back.
asciilifeform: very tellingly, 0 datashit on the net, 0 mentions of the part anywhere
mircea_popescu: reason he made the suggestion is that he bets on your failing to accurately test it.
asciilifeform: should be able to test the truth of the allegation tho.
mircea_popescu: generally these go like "darling, this is maybe an assfuckin chair you don't object to ?"
deedbot: http://trilema.com/2018/martin-cracauer-is-a-fucking-moron/ << Trilema - Martin Cracauer is a fucking moron. ☟︎
asciilifeform: which seems to be an almost exactly same machine ( i had it confused with c100 original ) but sans the cr50
asciilifeform: prolly worth examining the c100pa 1st
mircea_popescu: all this switching bs... not like power needs state.
mircea_popescu: you'll figure out how to perma-on it and that's that.
asciilifeform: ugh how do you intend to switch the thing on ?
mircea_popescu: a de-alphabet'd item that has no functioning power button is actually acceptable.
asciilifeform: mircea_popescu: i'ma definitely lift it, prior to throwing out board, but suspect that d00d was telling the truth re the power button, it doesn't seem to be routed though the old ec controller any moar
asciilifeform: ( and will point out, if i have to cut traces on these, the units will be produces at the rate of one per month, likely )
mircea_popescu: rip the fucking ic off the board.
asciilifeform: mircea_popescu: i'd happily cut it, but looking at the board, i suspect that they buried the traces
mircea_popescu: pshaw. i'm willing to pay for the board this is tested on. ☟︎
asciilifeform: they rerouted the power button and voltage regulator sequencing, through it.