Re: [PATCH v4] certs: Add EFI_CERT_X509_GUID support for dbx entries
From: Jarkko Sakkinen
Date: Wed Sep 16 2020 - 14:10:47 EST
On Tue, Sep 15, 2020 at 08:49:27PM -0400, Eric Snowberg wrote:
> The Secure Boot Forbidden Signature Database, dbx, contains a list of now
> revoked signatures and keys previously approved to boot with UEFI Secure
> Boot enabled. The dbx is capable of containing any number of
> EFI_CERT_X509_SHA256_GUID, EFI_CERT_SHA256_GUID, and EFI_CERT_X509_GUID
> Currently when EFI_CERT_X509_GUID are contained in the dbx, the entries are
> Add support for EFI_CERT_X509_GUID dbx entries. When a EFI_CERT_X509_GUID
> is found, it is added as an asymmetrical key to the .blacklist keyring.
> Anytime the .platform keyring is used, the keys in the .blacklist keyring
> are referenced, if a matching key is found, the key will be rejected.
> Signed-off-by: Eric Snowberg <eric.snowberg@xxxxxxxxxx>
Looks good to me.
Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@xxxxxxxxxxxxxxx>