Messages in this thread | | | Subject | Re: encrypted swap (was Re: [PATCH encrypted swsusp 1/3] core functionality) | From | Arjan van de Ven <> | Date | Thu, 14 Apr 2005 10:49:51 +0200 |
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> > > * 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.
but it's not useful since linux actually generally keeps the pages also in swap even when they're back in memory (so that if there's memory pressure again they can just be swapped out cheap again), this leads to very very long lived swap pages
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