linux-kernel - Re: [PATCH 0/4] KEYS: validate key trust with owner and builtin keys only

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Message-ID: <1402489820.612.58.camel@dhcp-9-2-203-236.watson.ibm.com>
Date:	Wed, 11 Jun 2014 08:30:20 -0400
From:	Mimi Zohar <zohar@...ux.vnet.ibm.com>
To:	Matthew Garrett <mjg59@...f.ucam.org>
Cc:	Dmitry Kasatkin <dmitry.kasatkin@...il.com>,
	Josh Boyer <jwboyer@...hat.com>,
	David Howells <dhowells@...hat.com>,
	Dmitry Kasatkin <d.kasatkin@...sung.com>,
	keyrings <keyrings@...ux-nfs.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	linux-security-module <linux-security-module@...r.kernel.org>
Subject: Re: [PATCH 0/4] KEYS: validate key trust with owner and builtin
 keys only

On Wed, 2014-06-11 at 04:23 +0100, Matthew Garrett wrote: 
> Yes. Wouldn't having a mechanism to allow userspace to drop keys that 
> have otherwise been imported be a generally useful solution to the issue 
> you have with that?

There are issues removing a key from both the local system(eg. cache,
running apps) and the attestation server (eg. ima-sig template
verification) perspectives.  We would need to address these concerns
before supporting key removal.

Mimi

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