[RFC PATCH] efi_loader: add sha384/512 on certificate revocation

Stuart Yoder stuart.yoder at arm.com
Mon May 2 23:51:55 CEST 2022



On 4/11/22 3:40 AM, Ilias Apalodimas wrote:
> Hi Akashi-san,
> 
>> On Mon, Apr 11, 2022 at 05:31:08PM +0900, AKASHI Takahiro wrote:
>> On Mon, Apr 11, 2022 at 10:56:22AM +0300, Ilias Apalodimas wrote:
>>> Currently we don't support sha384/512 for the X.509
>>> certificate To-Be-Signed contents.  Moreover if we come across such a
>>> hash we skip the check and approve the image,  although the image
>>> might needs to be rejected.
>>
>> Are you sure? You seem to be talking about efi_signature_check_revocation() here.
>> Please be more specific.
> 
> Arm has a security ACS testsuite [1].  The whole checking fails exactly on
> this bug.

[cut]

> 
> [1] https://github.com/ARM-software/arm-systemready/tree/security-extension-acs
> 
> Thanks
> /Ilias

Note, the above link is from the alpha release.  Please use the EAC
release branch:

https://github.com/ARM-software/arm-systemready/tree/security-interface-extension-acs

Thanks,
Stuart



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