Re: [PATCH v5 01/12] integrity: Introduce a Linux keyring called machine

Jarkko Sakkinen
2021-09-09T13:57:14Z

On Tue, 2021-09-07 at 12:00 -0400, Eric Snowberg wrote:
> Many UEFI Linux distributions boot using shim. The UEFI shim provides
> what is called Machine Owner Keys (MOK). Shim uses both the UEFI Secure
> Boot DB and MOK keys to validate the next step in the boot chain. The
> MOK facility can be used to import user generated keys. These keys can
> be used to sign an end-users development kernel build. When Linux
> boots, both UEFI Secure Boot DB and MOK keys get loaded in the Linux
> .platform keyring.
>
> Add a new Linux keyring called machine. This keyring shall contain just
> MOK CA keys and not the remaining keys in the platform keyring. This new
> machine keyring will be used in follow on patches. Unlike keys in the
> platform keyring, keys contained in the machine keyring will be trusted
> within the kernel if the end-user has chosen to do so.
>
> Signed-off-by: Eric Snowberg <eric.snowberg@oracle.com>

I guess this is somewhat sealed so

Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>

/Jarkko