linux-kernel - Re: [PATCH 2/3] binfmt_elf: Verify signature of signed elf binary

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Message-ID: <20130116215551.GB4222@redhat.com>
Date:	Wed, 16 Jan 2013 16:55:52 -0500
From:	Vivek Goyal <vgoyal@...hat.com>
To:	Mimi Zohar <zohar@...ux.vnet.ibm.com>
Cc:	"Eric W. Biederman" <ebiederm@...ssion.com>,
	linux-kernel@...r.kernel.org, pjones@...hat.com, hpa@...or.com,
	dhowells@...hat.com, jwboyer@...hat.com,
	Dmitry Kasatkin <dmitry.kasatkin@...el.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-security-module@...r.kernel.org,
	Ryan Ware <ryan.r.ware@...el.com>
Subject: Re: [PATCH 2/3] binfmt_elf: Verify signature of signed elf binary

On Wed, Jan 16, 2013 at 03:25:57PM -0500, Mimi Zohar wrote:

[..]
> > So irrespective of fact how RPM does it. What are basic commands/steps to
> > generate signature of a file and how to store it later in an extended
> > attribute?
> 
> evmctl calculates and writes out the 'security.evm' and 'security.ima'
> extended attribute.  The ima-evm-utils package README contains some
> directions for getting started.  We should probably move this thread to
> the linux-ima-user mailing list.

Ok, I will go through README file. I think we should still keep this
thread on lkml as it is not yet clear whether IMA is sufficient for
this requirement or not.

Thanks
Vivek
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