[Suit] Mapping draft-birkholz-rats-suit-claims system properties
Dave Thaler <dthaler@microsoft.com> Wed, 26 January 2022 19:31 UTC
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From: Dave Thaler <dthaler@microsoft.com>
To: "rats@ietf.org" <rats@ietf.org>, "suit@ietf.org" <suit@ietf.org>
CC: "TEEP@ietf.org" <teep@ietf.org>
Thread-Topic: Mapping draft-birkholz-rats-suit-claims system properties
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Date: Wed, 26 Jan 2022 19:31:19 +0000
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Subject: [Suit] Mapping draft-birkholz-rats-suit-claims system properties
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As requested at the end of the joint interim meeting, below is my (now updated with the latest section numbers) table mapping properties between draft-birkholz-rats-suit-claims and draft-ietf-rats-eat, and by extension draft-ietf-sacm-coswid which EAT references for format within some claims like swevidence.
The mapping isn't exactly 1:1 but my reading is things do map. For example,
EAT separates hw and sw properties into separate claim ids in hw vs sw claimsets, whereas draft-birkholz-rats-suit-claims combines them by proposing the same claim id in both claimsets.
SUIT EAT CoSWID
===== === ======
3.1.1 3.6 (hw)
vendor-identifier oemid
3.21 (sw) 2.6
swevidence reg-id
3.1.2
class-identifier (no mapping)
3.1.3 3.4
device-identifier ueid
3.1.4 3.21 2.6
image-digest swevidence thumbprint
3.1.5 3.21 2.9.2
image-size swevidence size
3.1.6 3.7 (hw)
version hardware-version-claims
3.9 (sw)
sw-version-type
Please check my work, as I believe all of above except
class-identifier can be deleted from the SUIT document
and just use the corresponding claims in the EAT document.
Dave