linux-kernel - Re: [PATCH 2/3] crypto: add output feedback mode

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Message-ID: <20181005023138.dg22cn4salb3p6zl@gondor.apana.org.au>
Date:   Fri, 5 Oct 2018 10:31:38 +0800
From:   Herbert Xu <herbert@...dor.apana.org.au>
To:     Ard Biesheuvel <ard.biesheuvel@...aro.org>
Cc:     Gilad Ben-Yossef <gilad@...yossef.com>,
        "David S. Miller" <davem@...emloft.net>, ofir.drang@....com,
        "open list:HARDWARE RANDOM NUMBER GENERATOR CORE" 
        <linux-crypto@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 2/3] crypto: add output feedback mode

On Fri, Sep 28, 2018 at 12:06:29PM +0200, Ard Biesheuvel wrote:
> On 20 September 2018 at 15:18, Gilad Ben-Yossef <gilad@...yossef.com> wrote:
> > Add a generic version of output feedback mode. We already have support of
> > several hardware based transformations of this mode and the needed test
> > vectors but we somehow missed adding a generic software one. Fix this now.
> >
> > Signed-off-by: Gilad Ben-Yossef <gilad@...yossef.com>
> 
> I couldn't find any users of OFB in the kernel. Any idea who is using
> it and for what?

Yes this shouldn't have been accepted however the driver did go
in with OFB and it's been there for a while so that's why I'm
making this exception.

Cheers,
-- 
Email: Herbert Xu <herbert@...dor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt