linux-kernel - Re: [PATCH 0/2] crypto: KEYS: convert public key to akcipher api

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Date:	Thu, 10 Dec 2015 16:56:17 -0500
From:	Mimi Zohar <zohar@...ux.vnet.ibm.com>
To:	Tadeusz Struk <tadeusz.struk@...el.com>
Cc:	herbert@...dor.apana.org.au, dhowells@...hat.com,
	linux-kernel@...r.kernel.org,
	linux-security-module@...r.kernel.org, linux-crypto@...r.kernel.org
Subject: Re: [PATCH 0/2] crypto: KEYS: convert public key to akcipher api

On Thu, 2015-12-10 at 14:37 -0500, Mimi Zohar wrote:
> On Thu, 2015-12-10 at 10:39 -0800, Tadeusz Struk wrote:
> > Hi Mimi,
> > On 12/10/2015 10:25 AM, Mimi Zohar wrote:
> > >> This patch set converts the module verification and digital signature
> > >> > code to the new akcipher API.
> > >> > RSA implementation has been removed from crypto/asymmetric_keys and the
> > >> > new API is used for cryptographic primitives.
> > >> > There is no need for MPI above the akcipher API anymore.
> > >> > Modules can be verified with software as well as HW RSA implementations.
> > > With these two patches my system doesn't even boot.  Digging deeper...
> > > 
> > 
> > It needs RSA implementation built-in.
> > Could you check if you have CONFIG_CRYPTO_RSA=y
> 
> The diff between this config and the previous one:
> < CONFIG_CRYPTO_AKCIPHER=y
> < CONFIG_CRYPTO_RSA=y
> ---
> > # CONFIG_CRYPTO_RSA is not set

FYI, dracut loaded the keys on the IMA keyring properly.  When we try to
pivot root, real root /sbin/init fails appraisal.  The audit subsystem
is showing "invalid-signature".

There's no additional debugging information with the boot command line
options rd.debug or systemd.log_level=debug.

Mimi


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