On Sun, Oct 14, 2007 at 07:46:31AM +0200, Alon Bar-Lev wrote: > On 10/14/07, Michael Halcrow <[EMAIL PROTECTED]> wrote: > > On Sun, Oct 14, 2007 at 01:52:05AM +0200, Alon Bar-Lev wrote: > > > Just a minor question... > > > Why not implement eCryptfs as fuse? > > > > 1. No shared memory mappings. > > Are you thinking users will execute libraries from eCrypfs?
Absolutely. I know of users who are mounting their entire root under eCryptfs. > > > > 2. Extra context switching between kernel and userspace on every page > > read/write syscall. > > But decryption is slow anyway... :) Not always. Architectures like the s390 with CPACF instructions can do the symmetric encryption very quickly; the extra constant context switching would result in a significant performance degredation. Mike
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