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| ▲ | yndoendo 2 hours ago | parent | next [-] |
| It sounds like a more cleaner method to obtain the keys versus using solvents and a lot of trial and error hardware. As described by Chris Gerlinsky with "How Do I Crack Satellite and Cable Pay TV?" [0] [1] [0] https://simkl.com/tv/33956/chaos-communication-congress/seas... [1] https://media.ccc.de/v/33c3-8127-how_do_i_crack_satellite_an... |
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| ▲ | palmotea 4 hours ago | parent | prev | next [-] |
| > Getting lucky and drilling through a part of the enclosure that isn't directly protected won't help you if a barometric pressure sensor is tripped as a consequence of breaking the hermetic seal. That's interesting. I suppose if that technology is in use, the attack would have to occur in a pressure-controlled chamber, so breaking the seal wouldn't cause a change in pressure. |
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| ▲ | MayeulC 4 hours ago | parent | next [-] | | A more likely measure, which I recall seeing years ago, is to measure the impedance of the enclosure of the thing you want to protect. If someone tampers with it, you would be alerted. It works at many scales, from a protective metal mesh over your IC to a PC case. | |
| ▲ | rcxdude 4 hours ago | parent | prev [-] | | And you'd need to have a way to know what the pressure inside is beforehand. | | |
| ▲ | overfeed 3 hours ago | parent [-] | | You can find the pressure through destructive trial-and-error if money is no object - which it isn't for governments when the target hardware is juicy. | | |
| ▲ | pixl97 21 minutes ago | parent [-] | | Really sounds very very easy for any lab that can measure molecular levels of gas. Even a very sensitive pressure checker in a temp controlled sealed box would do it. |
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| ▲ | stickfigure 3 hours ago | parent | prev | next [-] |
| Are any of these tamper-proof chips in my phone or laptop? |
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| ▲ | throwaway81523 2 hours ago | parent [-] | | I expect typical smart cards like the one in your credit card are harder to crack than the raspberry pi was. Those cards are (or were) also used in TV set-top boxes and back in the day, there was a decades-long arms race between the chip makers and cable TV pirates. The TV pirates were also willing to make large expenditures to crack the chips so they could clone them and sell the clones. There's more about this in Ross Anderson's book "Security Engineering". | | |
| ▲ | ironqcold an hour ago | parent [-] | | I’m actually curious now. Thanks, you’ve given me something to do this evening. |
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| ▲ | EvanAnderson 3 hours ago | parent | prev [-] |
| > You need an optical path to the secure device. Any path can be made into an optical path with a bright enough light. >smile< |
