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

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Date:	Mon, 06 Oct 2014 15:39:48 -0400
From:	Mimi Zohar <zohar@...ux.vnet.ibm.com>
To:	James Morris <jmorris@...ei.org>
Cc:	David Howells <dhowells@...hat.com>,
	Dmitry Kasatkin <d.kasatkin@...sung.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 Mon, 2014-10-06 at 23:44 +1100, James Morris wrote: 
> 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.

Thanks Dmitry, David.  Everything now seems to be working properly with
the patchset David posted today.

Mimi 

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