linux-kernel - Re: [PATCH v2] crypto: AF_ALG - add support for keys/asymmetric-type

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Date:	Wed, 13 Jan 2016 13:45:14 +0000
From:	David Woodhouse <dwmw2@...radead.org>
To:	David Howells <dhowells@...hat.com>
Cc:	Tadeusz Struk <tstruk@...il.com>, herbert@...dor.apana.org.au,
	tadeusz.struk@...el.com, smueller@...onox.de,
	linux-api@...r.kernel.org, marcel@...tmann.org,
	linux-kernel@...r.kernel.org, keyrings@...r.kernel.org,
	linux-crypto@...r.kernel.org, zohar@...ux.vnet.ibm.com,
	Jarkko Sakkinen <jarkko.sakkinen@...ux.intel.com>,
	peterhuewe@....de
Subject: Re: [PATCH v2] crypto: AF_ALG - add support for keys/asymmetric-type

On Wed, 2016-01-13 at 13:36 +0000, David Howells wrote:
> David Woodhouse <dwmw2@...radead.org> wrote:
> 
> > David, is there a way to do that test purely in software without
> > needing hardware support? We know that the data might not actually be
> > present in all cases... is there an easy test for that case?
> 
> I have written a user TPM driver that talks to a userspace TPM implementation
> out of the backend.  It's been pushed to the TPM driver guy but I'm not sure
> what became of it.  I'll chase it up.

I was thinking of something a lot simpler — like a test hack with a key
type that just puts a *pointer* to the key data in the 'payload', to
ensure that nobody is violating the rules about directly touching the
payload (which should be private to the implementation).

-- 
dwmw2


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