2013-10-18 00:01 <DocScrutinizer05> I'm sure a DamnSmallLinux will run happily as DHCP/NAT on that thing, even with its 128MB RAM
2013-10-18 00:03 <DocScrutinizer05> just the ethernet is crap, damn
2013-10-18 00:04 <DocScrutinizer05> maybe 2 PCI cards will do
2013-10-18 00:05 <DocScrutinizer05> roh: how's about your milling skills and opportunities?
2013-10-18 00:37 <wpwrak> DocScrutinizer05: considering to go from "case buyer" to "case maker" ?
2013-10-18 00:37 <DocScrutinizer05> kinda
2013-10-18 00:37 <DocScrutinizer05> spacer layer
2013-10-18 00:37 <DocScrutinizer05> 3mm ABS
2013-10-18 00:37 <DocScrutinizer05> should be "easy"
2013-10-18 00:39 <wpwrak> constant height ? or with variations along the Z axis ?
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2013-10-18 01:49 <roh> DocScrutinizer05: depends... rather a question of mounting it
2013-10-18 01:50 <roh> dunno about abs.. never milled it. what about delrin? (POM)
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2013-10-18 02:12 <DocScrutinizer05> whatever works
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2013-10-18 02:12 <DocScrutinizer05> wpwrak: needs some 3D modelling as well
2013-10-18 02:14 <roh> if you have any cad data, send a mail, and i'll see whats possible or if it needs more work
2013-10-18 02:23 <wpwrak> yeah, i can generate STL now ;-) not entirely sure if it's correct - in meshlab, the colors don't look right, but that could be just meshlab having a problem
2013-10-18 02:24 <wpwrak> this one: http://downloads.qi-hardware.com/people/werner/anelok/tmp/top-mesh.png
2013-10-18 02:24 <wpwrak> http://downloads.qi-hardware.com/people/werner/anelok/tmp/top-mesh.stl.bz2
2013-10-18 02:25 <wpwrak> this is something i can run on my mill. just need to find time to go buy some more acrylic - this needs 7 mm and i only have 5 mm at home
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2013-10-18 04:21 <roh> wpwrak: / DocScrutinizer05 upload to camgeeks.de - recieve a quote ;)
2013-10-18 04:23 <roh> .s
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2013-10-18 09:06 <wpwrak> roh: your 3D prints look surprisingly smooth. they didn't come out of the machine like this, did they ?
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2013-10-18 10:48 <roh> wpwrak: most of them did.. which picture exactly do you mean?
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2013-10-18 12:47 <wpwrak> both the white holder on the pole and the "OH". that's really without surface treatment ?
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2013-10-18 14:18 <roh> wpwrak: basically yes
2013-10-18 14:18 <roh> i'm not sure these pics were printed here, but there is so much going on that its hard to keep up
2013-10-18 14:19 <roh> but yes, thats both fdm stuff without chemical rework
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2013-10-18 14:19 <roh> usually you use a cutter and remove some supportstruts which need to be made to build overhangs and such stuff like stringing, but the surfaces get quite nice
2013-10-18 14:20 <roh> depends a lot on layer thickness setting s etc
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2013-10-18 15:50 <piyush_prl> sir plz help me out
2013-10-18 15:51 <piyush_prl> today my pen driver got wet in water
2013-10-18 15:51 <piyush_prl> what to do
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2013-10-18 16:00 <kyak> make it dry
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2013-10-18 16:40 <DocScrutinizer05> wtf is a pen driver?
2013-10-18 16:59 <DocScrutinizer05> pen drive == flash stick?
2013-10-18 17:00 <DocScrutinizer05> we'll prolly never know. (s)He's gone
2013-10-18 17:12 <wpwrak> penetration drive ? maybe some kind of drilling machine ?
2013-10-18 17:14 <DocScrutinizer05> I already wondered if that's been a carefully crafted social bot standard opening
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2013-10-18 18:55 <wpwrak> just had an idea for improving random number generation: since we have nearly infinite storage (in relation to what we actually need), let the user add a file with random bits. then use bits from that file.
2013-10-18 18:56 <larsc> rand() { return 4; /*choosen by fair diceroll */ }
2013-10-18 18:56 <wpwrak> (and mix them into the RNG we already use. so even if that one is - unknown to us - is compromised/weak, we can still get decent entropy)
2013-10-18 18:57 <wpwrak> well, worst case is that the user gives us a string of zeroes or such. in which case we're not worse off than with using the existing RNG.
2013-10-18 18:58 <larsc> how hard is it to integrate a real hw rng?
2013-10-18 18:58 <wpwrak> there's one in the transceiver
2013-10-18 18:58 <larsc> but it's too slow?
2013-10-18 18:59 <wpwrak> it's about 1 Mbps. that should be sufficient, i guess.
2013-10-18 19:00 <wpwrak> the question is whether it's truly random. there's always the risk that a RNG is biased, be it by defect, by design flaw, or by NSA.
2013-10-18 19:01 <eintopf> you need a webcam and a lavalamp
2013-10-18 19:01 <eintopf> for a hw random generator
2013-10-18 19:01 <roh> does that really matter on such a soc?
2013-10-18 19:01 <roh> with no real protetion against hw level attacs
2013-10-18 19:01 <roh> +c
2013-10-18 19:02 <wpwrak> you could still attack things other than the physical device. e.g., RF or backups of your password data
2013-10-18 19:03 <roh> jup. so at some point it makes no sense making one part of the crypto toolchain perfect, as long as the other parts aren't on the same level
2013-10-18 19:03 <wpwrak> you can also harden physical security. e.g., by adding a seal between top and bottom shell.
2013-10-18 19:04 <roh> i guess as long as the rng is working well and has no known or measureable defects one would need to worry about physical security measure before going further
2013-10-18 19:04 <wpwrak> attackers may not have uniform preferences for their attacks
2013-10-18 19:05 <wpwrak> and you could always wear your anelok on your body, making it difficult to mess with it. leave it in a safe when you go to the gym :)
2013-10-18 19:08 <wpwrak> (attackers) e.g., a pickpocket in the subway will find a physical attack easy but will probably despair on the crypto. on the other hand, the autistic blackhat somewhere in his mother's basement in utah is very unlikely to even want to leave the house, let alone travel to berlin to steak your anelok
2013-10-18 19:09 <wpwrak> but he may have all the resources needed to break your weak IVs
2013-10-18 19:09 <wpwrak> (plus the knowledge that goes with it)
2013-10-18 19:13 <wpwrak> what doesn't make sense is to add weak obstacles in paths where attackers will already have overcome much stronger obstacles of a similar nature. so don't rot13 your twofish-encrypted conspiracy memoirs
2013-10-18 19:15 <wpwrak> that is, sometimes even such a thing could help, if the attack is not against elements in the crypto chain but the entire chain. e.g., if the attack is based on guessed plaintext, a rot13 may shift you out of the profile the attacker assumes
2013-10-18 19:16 <wpwrak> of course, once they find out that you were using rot13, it's trivial for them to generate another set of vectors that will fit this time
2013-10-18 19:17 <roh> well.. if you got any files for us to print or try mill...
2013-10-18 19:20 <wpwrak> for now, i'll try to make do with what i can make at home. i expect this to be good enough for prototypes quantities. i can even run small batches of a few dozen units, if needed. my mill doesn't mind working at night ;-)
2013-10-18 19:21 <wpwrak> of course, there are numerous limitations to that approach. but after that, i need to look into higher-volume processes anyway.
2013-10-18 19:28 <roh> heh. i just got spammend by http://www.dgmtmold.com/ some weeks ago
2013-10-18 19:28 <roh> how fitting
2013-10-18 19:33 <wpwrak> yeah, that's the sort i'll eventually want :)
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