122   Ambiguous reference to “Key Alg” at page 93 clause 8.5.8

Created: 30 Jul 2025

Status: Conformance Test Verification

Part: Part 9 (2023, Edition2)

Links:

Page: 93

Clause: 8.5.8

Paragraph: second bullet point in the page

Issue

In the bullet point specifying the "keyLength", a non-unambiguously defined reference to "Key Alg" is used.

Proposal

Provide a definition "Key Alg", prior to its usage in the document.

Discussion Created Status
Progress as discussed. 15 Oct 25 Conformance Test Verification
Progress the tissue as discussed 15 Oct 25 Conformance Test Preparation
Clarification in the utilized algorithm information is intended to avoid backward compatibility problems by providing a more precise wording. 15 Oct 25 Analysis Of Compatibility
Progressing the tissue as discussed 15 Oct 25 Verify Draft Implementation
As aligned progressed as draft implementation as outlined in the attachment. 03 Sep 25 Drafting Implementation
Yes. Then I would also propose to go further as "Draft Implementation" 03 Sep 25 Discussion (red)
My understanding is future improvement goes to the next edition while progressing as "Draft Implementation" enables faster adoption through the TISSUE ballot process. Maybe it is good to progress as "Draft Implementation" to have clarity in the formulation.

To address the comment regarding the missing text:
OLD
The key length shall be determined through the used Key Alg of the SA TEK GDOI Payload.
NEW
The key length shall be determined through the used IntegrityAlgTyp signaled in the SA TEK GDOI Payload. 		25 Aug 25 Discussion (red)
Does "future improvement" mean in the next version of the standard? Or, can we also handle it with an amendment at some point in time?

Further, there is something missing in the proposed text, particularly in the part "...in the of the ..." 		12 Aug 25 Discussion (red)
Proposal to make this a future improvement and change the sentence from
OLD
The key length shall be determined through the used Key Alg of the SA TEK GDOI Payload.
NEW
The key length shall be determined through the used IntegrityAlgTyp signaled in the of the SA TEK GDOI Payload.

See also attachement withintegrated proposed resolution.

30 Jul 25 Discussion (red)
Key Alg. actually refers to the utilized algorithm for the integrity check. This should be stted more clearly. 30 Jul 25 Accepted

 

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