Messages in this thread | | | Date | Mon, 11 Apr 2005 01:19:09 +0200 | From | Andreas Steinmetz <> | Subject | [PATCH encrypted swsusp 0/3] encrypted swsusp image |
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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. -- Andreas Steinmetz SPAMmers use robotrap@domdv.de
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