[Replicant] [PATCH 2/2] freedom-privacy-security-issues: TrustZone: Explain its issues.

Denis 'GNUtoo' Carikli GNUtoo at no-log.org
Mon Dec 18 22:57:40 UTC 2017


On Sat, 16 Dec 2017 16:00:33 +0100
Paul Kocialkowski <contact at paulk.fr> wrote:

> I don't think we should be talking about TrustZone here in particular
> bur rather talk about privileged execution environments in general. We
> could rephrase it like this:
> 
> " This is even more problematic when the bootloader is in charge of
> loading the privileged execution environment, such as TrustZone, as
> that code gives full control of the processor to software that is
> proprietary and cannot be modified."
Here I fully agree with the "execution environment" change.

> Note that if the code cannot be modified, it is proprietary per-se.
For the end user, yes, which is what I care about.

However I prefer and/or as it puts all the bad combination
(proprietary, freely licensed and signed, proprietary and signed) on the
same level, as the result is the same for the end user.

Denis.
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