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The fact that they didn't pot it is interesting. I hadn't thought about that. Potting seems to be on the decline over the last 10 years from what I've seen.
by 18pfsmt 15y ago
The fact that they didn't pot it is interesting. I hadn't thought about that. Potting seems to be on the decline over the last 10 years from what I've seen.
- kwiens 15y agoI had to drill it open. There's a video of the process here: http://www.wired.com/threatlevel/2011/05/gps-video/ http://www.wired.com/threatlevel/2011/05/gps-video/ Re: software—we linked to the reference design, which includes a lot of information about the software. There should be plenty of information available to start investigating their implementation.
- joezydeco 15y agoPotting is still used heavily in industrial electronics and a lot of appliance work (think of washing machine control boards). I would think the military uses it a lot as well.
- mey 15y agoFIPS 140-2 Level 4 http://en.wikipedia.org/wiki/FIPS_140-2 http://en.wikipedia.org/wiki/FIPS_140-2 Level 2-4 are used in commercial and military grade hardware security Modules.
- joezydeco 15y agoI remember finding a teardown of an IBM 4765 module somewhere. That was badass.
- nitrogen 15y agoIs that the PCIe crypto module shown in Google searches for IBM 4765? Please share the link if you have it, as I couldn't find a teardown in my brief search. I'd like to see how one would dismantle a potted circuit.
- joezydeco 15y agoYeah it's the crypto module. I think the teardown involved shaving the part down layer by layer and examining all the parts like the fine wire meshes that would instantly blow the chip if disrupted and etc. Wish I could remember where I saw it.