linux-kernel - Re: [PATCH] crypto: tcrypt: add option to not exit on success

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Message-ID: <20090513132752.GA17262@gondor.apana.org.au>
Date:	Wed, 13 May 2009 23:27:52 +1000
From:	Herbert Xu <herbert@...dor.apana.org.au>
To:	Jarod Wilson <jarod@...hat.com>
Cc:	Neil Horman <nhorman@...driver.com>, linux-crypto@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] crypto: tcrypt: add option to not exit on success

On Wed, May 13, 2009 at 09:12:46AM -0400, Jarod Wilson wrote:
> 
> Hm... FIPS has the requirement that we test all algs before we use any
> algs, self-tests on demand before first use for each alg is
> insufficient. At first blush, I'm not seeing how we ensure this
> happens. How can we trigger a cbc(des3_ede) self-test from userspace?
> I see that modprobe'ing des.ko runs the base des and des3_ede
> self-tests, but modprobe'ing cbc.ko doesn't lead to any self-tests
> being run.

Once we have a user-space interface crypto API you will be able
to instantiate any given algorithm.

For now I suggest that you create your own module to instantiate
these FIPS algorithms.  Or just load tcrypt and ignore the exit
status, or make tcrypt return 0 if we're in FIPS mode.

Cheers,
-- 
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Email: Herbert Xu ~{PmV>HI~} <herbert@...dor.apana.org.au>
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