linux-kernel - Re: [PATCH 15/26] ubifs: Implement encrypt/decrypt for all IO

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Message-ID: <78f09113-fcc3-c2d2-9849-ba980cd9c0b4@nod.at>
Date:   Fri, 21 Oct 2016 19:21:04 +0200
From:   Richard Weinberger <richard@....at>
To:     Michael Halcrow <mhalcrow@...gle.com>
Cc:     linux-mtd@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-fsdevel@...r.kernel.org, dedekind1@...il.com,
        adrian.hunter@...el.com, tytso@....edu, jaegeuk@...nel.org,
        david@...ma-star.at, wd@...x.de, sbabic@...x.de,
        dengler@...utronix.de
Subject: Re: [PATCH 15/26] ubifs: Implement encrypt/decrypt for all IO

On 21.10.2016 19:14, Michael Halcrow wrote:
> Compress-before-encrypt is a hazard.
> 
> http://www.iacr.org/cryptodb/archive/2002/FSE/3091/3091.pdf

I'm fully aware of that. But as usual it depends on the use case.
Compression is optional in UBIFS, paranoid users can disable it
when encryption is enabled.

Thanks,
//richard