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Re: [Suit] SUIT rechartering: proposed text

Ira McDonald <blueroofmusic@gmail.com> Tue, 10 August 2021 16:30 UTC

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From: Ira McDonald <blueroofmusic@gmail.com>
Date: Tue, 10 Aug 2021 12:30:04 -0400
Message-ID: <CAN40gSsvPrnMzUrQASo7nmJJKYGjNm=GNtOd9v9+a7Ni1waCCQ@mail.gmail.com>
To: Michael Richardson <mcr+ietf@sandelman.ca>, Ira McDonald <blueroofmusic@gmail.com>
Cc: Brendan Moran <Brendan.Moran@arm.com>, suit <suit@ietf.org>
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Subject: Re: [Suit] SUIT rechartering: proposed text
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Hi,

I suggest that SUIT indeed has potentially much wider utility
than just the initial firmware of an embedded device.

Without displacing other vendor and consortia based software
update solutions, I suggest that SUIT could be used to update
software modules (after initial firmware) in a target device.

Having spent the last two years as a US invited expert in the
ISO 24089 Road Vehicles: Software Update project and the
last eight years addressing OTA firmware/software update
for the automotive industry, I suggest that SUIT has quite a
few advantages over many of the other solutions that were
adapted from the mobile phone industry.

I believe that it would be unfortunate for the SUIT charter to
imply or explicitly say that it's not suitable for the automotive
industry.

Cheers,
- Ira


On Tue, Aug 10, 2021 at 12:16 PM Michael Richardson <mcr+ietf@sandelman.ca>
wrote:

>
> Brendan Moran <Brendan.Moran@arm.com> wrote:
>     > I’m slightly concerned by one paragraph:
>
>     >>> The SUIT WG does not aim to create a standard for a generic
>     >>> application software update mechanism, but instead the SUIT WG is
>     >>> focusing on firmware development practices in the embedded
>     >>> industry. Software update solutions that target updating software
>     >>> other than the firmware binaries (e.g., applications) are also out
> of
>     >>> scope.
>
>     > This is a concern because, in the manifest format, we say that the
>     > primary goal is firmware update, but it’s still usable for software
>     > update. If this paragraph of the charter remains as-is, then the
>     > manifest format appears to go counter to the charter. I would argue
>     > that this paragraph appears to prohibit the development of support
> for
>     > TEEP.
>
> We weren't aiming for software update, but it turns out that we hit the
> mark.
>
> The paragraph, as Russ says, is left over from before.
> The important part about it is that if SUIT Manifest format was found
> lacking
> in some way as a "generic application software update", that wouldn't be
> considered a bug.
>
>
> --
> Michael Richardson <mcr+IETF@sandelman.ca>   . o O ( IPv6 IøT consulting )
>            Sandelman Software Works Inc, Ottawa and Worldwide
>
>
>
>
> _______________________________________________
> Suit mailing list
> Suit@ietf.org
> https://www.ietf.org/mailman/listinfo/suit
>

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