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When I decrypt / view a gpg file it is:

  • decrypted in the terminal / console and thus gets into history
  • the decryption goes into video memory
  • and into normal memory
  • and into the swap (if not enough memory)
  • and into the hibernation file (if you hibernate after loading) ...

Basically when someone takes my laptop and knows what he/she is doing it's easy to get the dece

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  • 2
    That's why you don't lend your stuff to people you don't trust.
    – Shadok
    Nov 23, 2012 at 14:53
  • 2
    There is a reason why one of the basic tenets of security is "given unrestricted physical access, all bets are off". Why bother with going through all that when they can just, for example, install a key logger and borrow your laptop again later?
    – user
    Nov 23, 2012 at 15:36
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    As a side note the first point is totally false: stdout doesn't go to your history.
    – Shadok
    Nov 30, 2012 at 16:18
  • Linux has been able for years to use encrypted swap. It's completely transparent.
    – b0fh
    Jun 16, 2017 at 11:52

1 Answer 1

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2
  1. Use full disk encryption.
  2. Disable hibernation.
  3. Always shut down your system when you're not actively using it.
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    Even with all this, a determined enough opponent could theoretically still compromise the system and gain access. I agree this is reasonable, but security is not an absolute, as I'm sure you know.
    – Chris S
    Nov 23, 2012 at 15:40

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