• wim@lemmy.sdf.org
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    1 year ago

    Just FYI, when your drive is encrypted, and the system is up and running, the keys for the encryption are in memory and thus recoverable. And even if they were magically protected by something like SGX or a some secure enclave, you can still interact with the machine and the filesystem while it is running.

    So full disk encryption is NOT a silver bullet to data protection when being raided.

    • Butters@lemmywinks.com
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      1 year ago

      Right, and then these comments about “encrypted database” the server application needs to be able to access that data, so it will have the key in its config somewhere right?

    • dan@upvote.au
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      1 year ago

      Yeah I didn’t realise they’d capture the memory. I though they just unplug the server and take it.

      You could potentially have something that recognizes that the server is being tampered with and automatically shuts it down.

    • algebro@algebro.xyz
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      1 year ago

      AFAIK it’s not that easy to access data on the machine while it’s running unless they can bypass the lock screen. People pick stupid passwords for their user accounts so it’s totally possible to get in in those cases, but otherwise dont you need really sophisticated side channel attacks to get data out of memory on locked system? It’s not like there is some port on the MOBO you can just plug into to get access to RAM

      • HumbleFlamingo@beehaw.org
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        1 year ago

        I did some work on this a decade or so ago in college. Data stays in memory a lot longer than you’d think at room temp, like minutes, not seconds. If you spray the modules down with an upside down compressed air can, you have plenty of time to remove it, and plug it into some that can dump it to persistent storage.