Re: secure boot

[Tobias Platen]

That would be interesting, even on a Talos II, which has owner
controlled secure boot. There will be no need to sign with a Microsoft
key as most UEFI implementations do. There are two Microsoft keys, one
for Windows and one for all other OSes.

On Sat, 2022-08-20 at 13:23 +0200, Antonio Carlos Padoan Junior wrote:
> Hello,
> 
> I hope my question makes sense. It concerns Guix grub UEFI
> bootloaders.
> 
> I would like to understand in which extent Guix functional approach
> helps to secure the computer with regards to an early boot malicious
> code/malware infection.
> 
> As far as I understand, Guix doesn't provide means to automatically
> sign
> bootloaders and kernels in order to use UEFI secure boot after each
> system
> reconfigure (assuming a PKI is properly implemented).  Hence, using
> secure boot with Guix is currently not viable (am i correct?).
> 
> In this context, can I assume that the risk of not having secure boot
> is
> minimized by the fact that in each system reconfiguration, the early
> boot chain is overwritten is such a way that, if a malicious is
> introduced somehow, it will be also overwritten? Am I correct?
> 
> In addition, how much more difficult it is to introduce such
> malicious
> code in a Guix system giving its functional approach and store
> system?
> (in comparison with others Linux distributions).
> 
> I know that Guix provides an amazing approach to secure software
> supply
> chain, but I as wondering if not having secure boot can be considered
> a major drawback for Guix.
> 
> Best regards