Re: [Suit] WG Last Call for draft-ietf-suit-information-model-03

[Brendan Moran <[e-mail]>]

Hi Dave,

Thank you very much for your review of the information model. I have incorporated your comments and I have added some additional information regarding the end-to-end security model. The changes are in a Pull Request on the suit-wg GitHub:

https://github.com/suit-wg/information-model/pull/4

Input is welcome!

Brendan

> On 21 Aug 2019, at 02:57, Dave Thaler <dthaler=[e-mail]> wrote:
>
> My comments on this document are in the marked up PDF copy at
> https://www.microsoft.com/en-us/research/uploads/prod/2017/05/draft-ietf-suit-information-model-03.pdf
> Most are simple editorial nits.
>
> Other comments include:
> * The UUID RFC (4122) does not use a "prefix".  Instead it uses namespace IDs, which is what I think the draft is talking about.
> * Need to address the issue of how UUIDs are "matched".   I recommend saying binary match (regardless of whether they're serialized as strings or 16-octet fields, since serialization is out of scope for this doc).  Point is that it would be a problem if a format serialized as strings and said to compare case insensitively.  This doc is acting as the security requirements/threat model and so needs to state this as the requirement in 3.3 and 3.4.
> * Various terminology ("root of trust", "firmware authority", etc.) needs updating to be consistent with the arch doc.
> * Sections 4.2.11 and 4.4.3 are, in my opinion, about a Device Operator role, not a Network Operator role as the text currently says.
> * Section 4.4.3 is about a network operator but the language needs tweaking to actually apply to that role.
> * COSE and CMS are only used informatively, not normatively, and so should be moved to the Informative References.
>
> See the PDF for the full context and details of my comments above, but that's a quick summary.
>
> Dave
>
> -----Original Message-----
> From: Suit <[e-mail]> On Behalf Of Russ Housley
> Sent: Monday, August 12, 2019 10:30 AM
> To: suit <[e-mail]>
> Subject: [Suit] WG Last Call for draft-ietf-suit-information-model-03
>
> This is the SUIT WG Last Call for "Firmware Updates for Internet of Things Devices - An Information Model for Manifests” <draft-ietf-suit-information-model-03>.  Please review the document and send your comments to the list by 6 September 2019.  This is longer than usual to accommodate vacation season.
>
> The datatracker page for the document is https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fdatatracker.ietf.org%2Fdoc%2Fdraft-ietf-suit-information-model%2F&amp;data=02%7C01%7Cdthaler%40microsoft.com%7C8f95a824d19c4eae363608d71f7565f1%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C637012461397594909&amp;sdata=hKlq9oUNqEz5XrOre3mYa8QdCoYshPQIeQqHkMqZH5I%3D&amp;reserved=0
>
> Thanks,
> Russ & Dave & Dave
>
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