Éric Vyncke has entered the following ballot position for
draft-ietf-cose-tsa-tst-header-parameter-05: No Objection

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COMMENT:
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# Éric Vyncke, INT AD, comments for draft-ietf-cose-tsa-tst-header-parameter-05
CC @evyncke

Thank you for the work put into this document.

Please find below some non-blocking COMMENT points.

Special thanks to Michael Jones for the shepherd's write-up including the WG
consensus but the justification of the intended status is rather light.

Other thanks to Alexey Melnikov, the IoT directorate reviewer (at my request),
please consider this int-dir review:
https://datatracker.ietf.org/doc/review-ietf-cose-tsa-tst-header-parameter-05-iotdir-telechat-melnikov-2025-04-30/
(and I have read Thomas' reply)

I hope that this review helps to improve the document,

Regards,

-éric

## COMMENTS (non-blocking)

### Fit the COSE charter ?

I support Roman's DISCUSS on this I-D not fitting the COSE charter.

### Section 1.1

Please expand "TSA" at first use.

Add reference(s) for TSA (RFC 3161 ?) & "Transparency Service".

### Section 2

Isn't 'boxes' unclear in `by allowing multiple private-key boxes` ?

### Section 2.1

Thanks for using SVG graphics, much cleaner.

Should clock also be considered as input in the TSA box in figure 1 ? The
graphics seems to indicate that the private key is feeded in the clock...



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