linux-kernel - Re: [PATCH v11 0/6] KEYS: Measure keys when they are created or updated

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Date:   Thu, 12 Dec 2019 08:58:05 -0800
From:   Lakshmi Ramasubramanian <nramas@...ux.microsoft.com>
To:     Mimi Zohar <zohar@...ux.ibm.com>, linux-integrity@...r.kernel.org
Cc:     eric.snowberg@...cle.com, dhowells@...hat.com,
        mathew.j.martineau@...ux.intel.com, matthewgarrett@...gle.com,
        sashal@...nel.org, jamorris@...ux.microsoft.com,
        linux-kernel@...r.kernel.org, keyrings@...r.kernel.org
Subject: Re: [PATCH v11 0/6] KEYS: Measure keys when they are created or
 updated

On 12/12/19 6:28 AM, Mimi Zohar wrote:

> Hi Lakshmi,
> 
> On Wed, 2019-12-11 at 08:47 -0800, Lakshmi Ramasubramanian wrote:
>> Keys created or updated in the system are currently not measured.
>> Therefore an attestation service, for instance, would not be able to
>> attest whether or not the trusted keys keyring(s), for instance, contain
>> only known good (trusted) keys.
>>
>> IMA measures system files, command line arguments passed to kexec,
>> boot aggregate, etc. It can be used to measure keys as well.
>> But there is no mechanism available in the kernel for IMA to
>> know when a key is created or updated.
>>
>> This change aims to address measuring keys created or updated
>> in the system.
> 
> Thank you!  This patch set is now queued in the next-integrity-testing
> branch of https://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-
> integrity.git/.
> 
> Mimi
> 

Thanks Mimi.

  -lakshmi