On Thu, Apr 14, 2005 at 01:31:19AM -0700, Andy Isaacson wrote:
>
> Does dmcrypt have a simple operation mode like OpenBSD's encrypted swap?
> I want to be able to 'sysctl -w kernel.swap_crypt=1' and get
It's not that easy however the distros can make it so that it's as
simple as running one command to enable/disable it.
> * pages are encrypted as they're written to swap
Yep.
> * the key is automatically regenerated every 2 hours (or whatever); as
> pages encrypted under the old key age out, it can be freed eventually
This'll require changes to dmcrypt but it's doable.
> * I don't have to manage keys, choose algorithms, futz with /etc/fstab,
> figure out complex configs for /dev/loopN, etc
You don't need to worry about keys unless you want to read from the swap
after a reboot, i.e., swsusp.
Cheers,
--
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