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, -- Visit Openswan at http://www.openswan.org/ Email: Herbert Xu ~{PmV>HI~} <[EMAIL PROTECTED]> Home Page: http://gondor.apana.org.au/~herbert/ PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
