tmsr - Search: i

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asciilifeform: ( i do it right here with 10min of work )

asciilifeform: i have a pretty good idea of the power sequencing, from reading the ec and cr50 srcs

asciilifeform: so i'm not sure what you expect to find in a vendor repair book

swiftgeek: so i won't find anything xD

asciilifeform: if i can exploitably crash the thing , my job is done

swiftgeek: and i was wondering why we don't see so much VIA chipsets anymore xD

asciilifeform: i, for instance, would like to know which fpga was their starting point. and where its factory test pads are.

swiftgeek: i finally realized from leftover clues

asciilifeform: it so happens that i know how decapping etc is done.

swiftgeek: sigh i think i lost video about removing layers xD

asciilifeform: i.e. 100% replacement of the old infineon they formerly used

asciilifeform: given as it is a tpm/drm crock of shit, i fully expect false metal masks and the other joys of 'tamper resistence'

asciilifeform: lol i was not speaking of timing xtal

asciilifeform: i mean, asic die.

asciilifeform: i'd luvv to be proven wrong on this subj

asciilifeform: got example of a successful public reversing of any recent (i.e. post-1995) crystal ?

swiftgeek: i doubt it will be below 65nm

asciilifeform: swiftgeek: i intend to send a unit to zeptobars in near future. i do not however expect any interesting result, afaik no 22nm or similar density device has ever been publicly reversed

swiftgeek: asciilifeform: then i would really recommend finding dead one and sending chip to zeptobars

asciilifeform: swiftgeek: given your introduction ( http://btcbase.org/log/2018-06-11#1822589 ) i assume you may be interested in verifying fact that cr50 is not a subfunctionality of the ordinary (i.e. kept in winbond spi ) bootrom or the EC controller ('nuvoton' arm , visible in right hand of photo ). this is very simple to do: ☝︎☟︎☟︎

asciilifeform: currently i am not very interested in intel iron

asciilifeform: thus far i know how to cut power to it, and this suffices for my purpose ☟︎

asciilifeform: at any rate i am not presently concerned with the 80211 card

swiftgeek: i can't guess dimensions properly so let's assume it's the same as with c201pa

swiftgeek: asciilifeform: yeah i only care about board xD

swiftgeek: asciilifeform: so that whole time i was thinking this is c201pa

swiftgeek: i confused the 2 for 1 and this is the thing?

asciilifeform: i uncrated it in end of april

asciilifeform: ( i cannot rule out the possibility that it was built in cooperation with, or at the facility of , infineon; it is stamped 'TWN' so this is at least theoretically hinted )

asciilifeform: personally, i'd consider a box with no trackpad function, to be usable ☟︎

asciilifeform: i also have a sample fw blob

asciilifeform: thus far i know nothing about it aside from the update/reflash mechanism (it is done via the ec)

asciilifeform: swiftgeek: i actually started with attempt to port generic coreboot to c101pa, and ended up finding the cr50 by accident

swiftgeek: asciilifeform: i'm from #libreboot , dev :)

asciilifeform: swiftgeek: i definitely noticed the change.

asciilifeform: ( i do not yet know what is in the 201pa )

asciilifeform: i'm on my 2nd board..

swiftgeek: asciilifeform: e-waste, i'm against it

swiftgeek: asciilifeform: if somebody will end up with dead c201pa in eu then hopefully i will get it for teardown if they remember

asciilifeform: i have a very similar machine

asciilifeform: sadly i am not currently equipped for such an experiment

asciilifeform: swiftgeek: if you'd like to take a c101pa and deball the bga and try this, and post article, i promise to read

swiftgeek: i'm telling you that it will be simpler to do it once and this way confirm every part of it

asciilifeform: sure, but i want 1000+ units, rather than 1 elaborately handcrafted.

swiftgeek: asciilifeform: i'm only speaking about doing it once in history xD ☟︎

swiftgeek: what i mean is

swiftgeek: asciilifeform: that's what i mean by that :D

asciilifeform: swiftgeek: in re cr50, i am specifically interested in whatever factory test pads exist , with which the thing may be filled up with initial fw on manufacture

asciilifeform: all i've been able to find is that 1) it is an arm cortex-m , prolly licensed 2) started life as fpga ( see google's src, comments repeatedly refer to earlier vers as 'fpga' , then , later, 'g-chip' )

swiftgeek: if starts align properly i will be doing something similar for kgpe-d16

|\n: even if something is not clear - hardware is full of shit, supplying any trust towards vendors is as stupid as saying that someone might now have some private keys from whatever, being it an IT or automotive industry (pick any), i believe that is why some papers on standards that might shed light on ways of how proprietary things (that belong to owners) work ☟︎

asciilifeform: i am however accumulating a pile of c101pa boards

asciilifeform: swiftgeek: i do not currently have a 201

swiftgeek: asciilifeform: nope i'm here for fact checking, from #libreboot

swiftgeek: oh now i see that violeet thing

a111: Logged on 2018-06-11 15:35 asciilifeform: http://www.loper-os.org/pub/c101pa/h1.jpg << observe, cr50 has buncha test pads. i bet half a dozen of these, are used for factory fillup.

|\n: good shout, sure i got my miserable excuses, since i'm not media person, i constantly attempt to tell about such things to people who show interest, but the scales are as miserable as my excuses hah

asciilifeform: |\n: i noticed today that there is 0 discussion of cr50/h1 in ru net

|\n: so i doubt theres anything remarkable i could tell about myself heh

|\n: apart from things unspeakable on freenode i love to bring up tor relays and i got a job as an admin of shitty place ☟︎

|\n: i am, russia

|\n: trinque, i'm just a dude that sometimes hears of phuctor and things that include links to the blog, i like what i see, cool pals discuss it, i'd like to track more of it, whatever it is

|\n: well it was fast i admit, now i'd better shut up because it brings too much crap to logs, got my answers, thanks

asciilifeform: |\n: ideally, you go and register gpg key with deedbot. then , let's say i rate you, and then you can speak whenever you have something to say.

|\n: what is the normal channel "flow", meaning how would i even ask a question if i got one

apt-get: I wasn't actually offended or anything, it's just banter

apt-get: I'm more interested in that kind of persona rather than adopting an identity meant to be recognized

apt-get: the reason I keep using this nick is because it's quite handy to have personal info drowned out in a sea of noise when someone tries to look it up ☟︎

apt-get: I see

apt-get: I've been interested in learning it for quite some time though

apt-get: rude tbh, I've been using this one online for quite some time ☟︎

apt-get: I've been doing that a bit yesterday

asciilifeform: apt-get: i recommend to read the logs

apt-get: I just got d/c'd

asciilifeform: ( if he does, i'ma pay for it )

BingoBoingo: asciilifeform: I can ask. Is the PCB already in Uruguay?

mircea_popescu: not where i lived, either. but in the shitplain of southern romania ? very fucking needed.

mircea_popescu: asciilifeform, i recall it too. i was fucking there! the motorola "cell phones" you could maim someone with, and the inductor computers, and so on.

asciilifeform: i recall when it was fashionable to make 'car comp'

asciilifeform: lol i recall that thing, it was, what, 3kg ?

mircea_popescu: no, i know.

a111: Logged on 2018-01-31 13:56 mp_en_viaje: in other "thanks goodness computer means programmable machine", i have here this hp elitebook. it has the backlight permanently welded to "retina cancer". the "function" key bs works for everything else EXCEPT setting the brightness, fn-f9 does 0.

mircea_popescu: but eg why should i throw out http://btcbase.org/log/2018-01-31#1778739 ? even if it's used once in a month, you fixed it for me, it's going in the tmsr museum ☝︎

mircea_popescu: you know it's like >pi per capita here ? i recently counted, it's a scandal.

mircea_popescu: anyway. i'm starting to think i'll simply add a "owns desktop" disqualifier to the list.

asciilifeform: ye olde mk61 is moar of computer. even tho poor orcistan never even invented soldermask, pcb was bare, like if i made it here in my kitchen.

mircea_popescu: "oh, i got my phone".

asciilifeform: ( legendarily, soyuz actually carried mk-52, reportedly, on board, a sort of mk-61 with i/o connector, as backup to main comp )

mircea_popescu: (and for the gandalfs in the peanut gallery : streetwalking is ~hard~. short of infantryman during war, streetwalker has the hardest, most biodemanding job there is. which is why i respect them a lot more than i respect githikipedia contributors)

asciilifeform: and holy fuq the sheer militant uselessness of each new crop of i_came_via_reddit weevils.

mircea_popescu: but, i can see the angle.

asciilifeform: i got various things. problem is that i do not currently have a popped unit where i can see the effect of $manipulation on rng (or any other part, aside from general 'it crashed')

mircea_popescu: anyway, if you can get factory probes on them pads, i would not even be surprised if you can just flash it without further ado.

asciilifeform: http://www.loper-os.org/pub/c101pa/h1.jpg << observe, cr50 has buncha test pads. i bet half a dozen of these, are used for factory fillup. ☟︎

trinque: asciilifeform: https://archive.li/sVoej << I get zero output from the test provided at the bottom using deedbot's gpg

asciilifeform: meanwhile, in the entomological pit : https://en.wikipedia.org/wiki/Talk%3AFritz-chip >> 'I've deleted most of the article. The information here is already presented in a more up-to-date fashion at Trusted Computing, which is the correct title for the technology. "Fritz-chip" was never more than a moniker used by critics of the technology put forth by Sen. Hollings. The article now represents this fact. Warrens 23:24, 29 April 2006 ( ☟︎

mimisbrunnr: Logged on 2018-06-10 16:16 Mocky: !Q later tell lobbes I just got back from uwharrie national forest, ~50km east of Charlotte. ftr, 'deep river' is misnomer, more like 'shallow creek'

lobbes: http://logs.bvulpes.com/trilema?d=2018-6-10#373478 << lol, I believe it. On the bright side, at least it didn't contain any brain-eating amoebas >> http://archive.is/SJSUG

mircea_popescu: tho in retrospect i'm not entirely sure why i thought that.

mircea_popescu: i thought he used his own impl.