Re: partially encrypted filesystem

[Phillip Lougher]

Linus Torvalds wrote:
> Encryption does have a few extra problems, simply because of the intent.
> In a compressed filesystem it is ok to say "this information tends to be
> small and hard to compress, so let's not" (for example, metadata). While
> in an encrypted filesystem you shouldn't skip the "hard" pieces..

Squashfs is I think the only Linux filesystem that does compress the 
metadata.  I did this more as a technical challenge, but the extra 
compression is sometimes worthwhile, especially with filesystems with 
lots of small files.  Normally, however, it probably isn't worth the effort.

Phillip

> (Encrypted filesystems also have the key management issues, further
> complicating the thing, but that complication tends to be at a higher
> level).
>
> 		Linus



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