[AVTCORE] Paul Wouters' Discuss on draft-ietf-avtext-framemarking-14: (with DISCUSS)

Paul Wouters via Datatracker <noreply@ietf.org> Wed, 12 April 2023 15:36 UTC

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Date: Wed, 12 Apr 2023 08:36:30 -0700
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Subject: [AVTCORE] Paul Wouters' Discuss on draft-ietf-avtext-framemarking-14: (with DISCUSS)
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Paul Wouters has entered the following ballot position for
draft-ietf-avtext-framemarking-14: Discuss

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DISCUSS:
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Thanks to Carl Wallace for their secdir review:
https://datatracker.ietf.org/doc/review-ietf-avtext-framemarking-13-secdir-lc-wallace-2022-04-11
which raises a good point about referencing RFC 8285 and authenticated headers.

Additionally, I wonder why this document has no Privacy Considerations Section.
By exposing previously encrypted information on the outer header, some private
information is exposed. For example, when watching a TV or live event stream,
just by exposing the Independent Frame bit one might be able to deduce the
content being watched. And perhaps advise could be added to not send these bits
all the time, but only when an RTP Switch requests it specifically (and then
deny excessively repeated attempts to foil fingerprinting the stream). Please
consider adding a Privacy Considerations section, or let me know why this would
not be useful