linux-ext4 - Re: [PATCH 0/5] ext4: RFC: Encryption

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Message-ID: <20140723223459.GA29197@amd.pavel.ucw.cz>
Date:	Thu, 24 Jul 2014 00:34:59 +0200
From:	Pavel Machek <pavel@....cz>
To:	Michael Halcrow <mhalcrow@...gle.com>
Cc:	linux-ext4@...r.kernel.org, linux-fsdevel@...r.kernel.org,
	zohar@...ux.vnet.ibm.com, herbert@...dor.apana.org.au,
	hch@...radead.org, lczerner@...hat.com, tytso@....edu,
	tyhicks@...onical.com, serge.hallyn@...onical.com
Subject: Re: [PATCH 0/5] ext4: RFC: Encryption

On Thu 2014-07-24 00:25:06, Pavel Machek wrote:
> Hi!
> > This patchset proposes a method for encrypting in EXT4 data read and
> > write paths. It's a proof-of-concept/prototype only right
> > now. Outstanding issues:
> > 
> >  * While it seems to work well with complex tasks like a parallel
> >    kernel build, fsx is pretty good at reliably breaking it in its
> >    current form. I think it's trying to decrypt a page of all zeros
> >    when doing a mmap'd write after an falloc. I want to get feedback
> >    on the overall approach before I spend too much time bug-hunting.

> Can I keep just a subtree (/home/pavel/.ssh) encrypted?

Ok, as far as I can tell no, this is whole filesystem encryption for
now. I guess encrypting based on some attribute is planned...?

Best regards,
									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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