linux-kernel - Re: [PATCH 3/4] module: search the key only by keyid

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Date:	Mon, 6 Oct 2014 23:44:57 +1100 (AEDT)
From:	James Morris <jmorris@...ei.org>
To:	David Howells <dhowells@...hat.com>
cc:	Dmitry Kasatkin <d.kasatkin@...sung.com>, zohar@...ux.vnet.ibm.com,
	linux-ima-devel@...ts.sourceforge.net,
	linux-security-module@...r.kernel.org, rusty@...tcorp.com.au,
	keyrings@...ux-nfs.org, linux-kernel@...r.kernel.org,
	dmitry.kasatkin@...il.com
Subject: Re: [PATCH 3/4] module: search the key only by keyid

On Fri, 3 Oct 2014, David Howells wrote:

> Dmitry Kasatkin <d.kasatkin@...sung.com> wrote:
> 
> > BTW. But actually why signer is needed to find the key?
> > Every key has unique fingerprint.
> 
> The SKID is by no means guaranteed unique, is not mandatory and has no defined
> algorithm for generating it.
> 
> > Or you say that different certificates might have the same PK?
> > What I would consider strange. But anyway, if PK is the same, then
> > verification succeed.
> 
> Do note: We *do* need to get away from using SKIDs.  We have situations where
> we have to use a key that doesn't have one.
> 

David, I need to push to Linus for 3.17 -- please finalize the fix for 
this and send me a pull request.



-- 
James Morris
<jmorris@...ei.org>

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