linux-kernel - Re: [RFC PATCH] crypto: Add IV generation algorithms

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Message-ID: <20161129075011.GA5331@gondor.apana.org.au>
Date:   Tue, 29 Nov 2016 15:50:12 +0800
From:   Herbert Xu <herbert@...dor.apana.org.au>
To:     Binoy Jayan <binoy.jayan@...aro.org>
Cc:     Oded <oded.golombek@....com>, Ofir <Ofir.Drang@....com>,
        "David S. Miller" <davem@...emloft.net>,
        linux-crypto@...r.kernel.org, Mark Brown <broonie@...nel.org>,
        Arnd Bergmann <arnd@...db.de>,
        Linux kernel mailing list <linux-kernel@...r.kernel.org>,
        Alasdair Kergon <agk@...hat.com>,
        Mike Snitzer <snitzer@...hat.com>, dm-devel@...hat.com,
        Shaohua Li <shli@...nel.org>, linux-raid@...r.kernel.org
Subject: Re: [RFC PATCH] crypto: Add IV generation algorithms

On Tue, Nov 29, 2016 at 01:16:46PM +0530, Binoy Jayan wrote:
> 
> No one is using it as of now. It was just a thought to pass context
> information, instead of making it part of the context which is shared
> among dm-crypt and geniv.

OK in that case we should just get rid of it until it's actually
needed.  In any case, if there was a need for such information we
should try to embed it into either the key (per-tfm) or the IV
(per-request) as appropriate.

Thanks,
-- 
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