Re: [PATCH encrypted swsusp 0/3] encrypted swsusp image

[folkert@vanheusden.com]

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> The following patches allow for encryption of the on-disk swsusp image
> to prevent data gathering of e.g. in-kernel keys or mlocked data after
> resume.
> For this purpose the aes cipher must be compiled into the kernel as
> module load is not possible at resume time.
> A random key is generated at suspend time, stored in the suspend header
> on disk and deleted from the header at resume time. If you don't resume
> a mkswap on the suspend partition will also delete the temporary key.
> Only the data pages are encrypted as only these may contain sensitive data.
> This works on my x86_64 laptop (64bit mode) and probably needs testing
> on other platforms.

What about an option for an user-defined key? One that can be set when
suspending?


Folkert van Heusden

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