[Gen-art] Genart last call review of draft-ietf-avtcore-cryptex-05

[Linda Dunbar via Datatracker <[e-mail]>]

Reviewer: Linda Dunbar
Review result: Ready with Nits

I am the assigned Gen-ART reviewer for this draft. The General Area
Review Team (Gen-ART) reviews all IETF documents being processed
by the IESG for the IETF Chair.  Please treat these comments just
like any other last call comments.

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Document: draft-ietf-avtcore-cryptex-05
Reviewer: Linda Dunbar
Review Date: 2022-04-05
IETF LC End Date: 2022-04-05
IESG Telechat date: Not scheduled for a telechat

Summary:
This document specifies a new mechanism that completely encrypts header
extensions and CSRCs for RTP.

Major issues: None

Minor issues: None

Nits/editorial comments:

a couple of questions:
- Section 4: this document defines a new "a=cryptex" Session Description
Protocol (SDP) [RFC4566] attribute to indicate support. Then the next sentence
states that "This attribute takes no value".  Why "no value"?  The first
statement already says a new "a=cryptex" attribute.  It is confusing.

-  Section 6.3:  what does "region" mean in the statement?   "The decryption
procedure is identical to that of [RFC3711] except for the region to decrypt" 
Do you mean the "header" to be encrypted by the scheme described in this
document?

Thank you,
Linda Dunbar