Re: [PATCH 0/2] Add support for ECDSA-signed kernel modules

[Jarkko Sakkinen]

On Tue, Apr 06, 2021 at 02:53:38PM -0400, Stefan Berger wrote:
> This series adds support for ECDSA-signed kernel modules.
> 
> The first patch in this series attempts to address the issue where a
> developer created an ECDSA key for signing modules and then falls back
> to compiling an older version of the kernel that does not support
> ECDSA keys. In this case this patch would delete that ECDSA key if it is
> in certs/signing_key.pem and trigger the creation of an RSA key. However,
> for this to work this patch would have to be applied to previous versions
> of the kernel but would also only work for the developer if he/she used a
> stable version of the kernel to which this patch was applied. So whether
> this patch actually achieves the wanted effect is not always guaranteed.

Just wondering why the key needs to be removed in the fallback.

/Jarkko