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Simple safe encryption for a server?
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this post was submitted on 07 Aug 2024
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Yeah, you're right, if it's meant as disks-only, then TPM is the easy solution.
I think SSH unlocked LUKS at boot might be a decent compromise, with the SSH server at a different physical location.
I mean, TPM-locked machine with all the other parts configured correctly should be reasonably secure. It would boot without interaction and be available on the network. It would require a sophisticated and motivated actor to find a vulnerability in one of the systems in the boot chain to get in. That's probably good enough for preventing data leaks from theft. But the user has to make sure the whole boot chain is configured securely.
Yeah, and the threat actor here is probably less 'guy who knows Linux, LUKS, and how to bypass this' and more 'dude who wants to sell this for $5 on craigslist for more meth', which pretty much means if the data is encrypted at rest and generally not accessible without logging in with a password they don't have then it's... probably fine?