linux-kernel - Re: [PATCH RFC 00/12] Enroll kernel keys thru MOK

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Date:   Wed, 7 Jul 2021 10:45:19 -0600
From:   Eric Snowberg <eric.snowberg@...cle.com>
To:     Christoph Hellwig <hch@...radead.org>
Cc:     keyrings@...r.kernel.org,
        linux-integrity <linux-integrity@...r.kernel.org>,
        Mimi Zohar <zohar@...ux.ibm.com>,
        David Howells <dhowells@...hat.com>,
        David Woodhouse <dwmw2@...radead.org>,
        herbert@...dor.apana.org.au, davem@...emloft.net,
        jarkko@...nel.org, jmorris@...ei.org, serge@...lyn.com,
        keescook@...omium.org, gregkh@...uxfoundation.org,
        torvalds@...ux-foundation.org, scott.branden@...adcom.com,
        weiyongjun1@...wei.com, nayna@...ux.ibm.com, ebiggers@...gle.com,
        ardb@...nel.org, nramas@...ux.microsoft.com, lszubowi@...hat.com,
        linux-kernel@...r.kernel.org, linux-crypto@...r.kernel.org,
        linux-security-module@...r.kernel.org,
        James.Bottomley@...senpartnership.com, pjones@...hat.com,
        glin@...e.com, "konrad.wilk@...cle.com" <konrad.wilk@...cle.com>
Subject: Re: [PATCH RFC 00/12] Enroll kernel keys thru MOK


> On Jul 7, 2021, at 10:28 AM, Christoph Hellwig <hch@...radead.org> wrote:
> 
> On Wed, Jul 07, 2021 at 10:23:04AM -0600, Eric Snowberg wrote:
>> 
>>> On Jul 7, 2021, at 12:46 AM, Christoph Hellwig <hch@...radead.org> wrote:
>>> 
>>> On Tue, Jul 06, 2021 at 10:43:51PM -0400, Eric Snowberg wrote:
>>>> This is a follow up to the "Add additional MOK vars" [1] series I 
>>>> previously sent.  This series incorporates the feedback given 
>>>> both publicly on the mailing list and privately from Mimi. This 
>>>> series just focuses on getting end-user keys into the kernel trust 
>>>> boundary.
>>> 
>>> WTF is MOK?
>> 
>> MOK stands for Machine Owner Key.   The MOK facility can be used to 
>> import keys that you use to sign your own development kernel build, 
>> so that it is able to boot with UEFI Secure Boot enabled. Many Linux 
>> distributions have implemented UEFI Secure Boot using these keys 
>> as well as the ones Secure Boot provides.  It allows the end-user 
>> a choice, instead of locking them into only being able to use keys 
>> their hardware manufacture provided, or forcing them to enroll keys 
>> through their BIOS.
> 
> Please spell this out in your cover letters and commit logs.

I will add it in the future, thanks.