DTLS-SRTP Handling in SIP Back-to-Back User Agents
RFC 7879
Yes
No Objection
Note: This ballot was opened for revision 08 and is now closed.
Alvaro Retana No Objection
(Ben Campbell; former steering group member) Yes
(Alia Atlas; former steering group member) No Objection
(Alissa Cooper; former steering group member) (was Discuss) No Objection
Thanks for handling my DISCUSS points.
(Barry Leiba; former steering group member) No Objection
I support at least some of Alissa's and Stephen's DISCUSS points.
In particular, I'm not fully in agreement with Alissa on her point 1: We do sometimes (and should) make normative statements about how protocols should work and should be used, even with knowledge that those statements may (will) be ignored. Sometimes it's to keep the protocol tight; sometimes it's to provide a lever ("The IETF has a standard that says that what you're doing is wrong!").
Because of that, Alissa's point 2 is particularly important: We have to stop the general practice of watering down normative statement in protocols as a way of mollifying people who don't like them. If the right thing is to say "MUST do X", we should not say "SHOULD do X" because we know that some implementations don't and won't do X. In particular, here, if there's any value in this, it's necessary to be strict and clear to expose that value.
(Benoît Claise; former steering group member) No Objection
(Deborah Brungard; former steering group member) No Objection
(Jari Arkko; former steering group member) No Objection
(Joel Jaeggli; former steering group member) No Objection
Dan Romascanu performed the opsdir review
(Kathleen Moriarty; former steering group member) (was No Record, Yes) No Objection
I like the idea of documenting the methods used for MiTM to provide ways to avoid that in practice, but support Alyssa'a discuss points to make this point more clear (purpose of this documentation) and her concerns about what happens in actual implementations. I'd like to hear more on whether this should be standards track or informational as well and will follow along with her discuss thread.
(Spencer Dawkins; former steering group member) No Objection
(Stephen Farrell; former steering group member) (was Discuss) No Objection
Thanks for addressing my discuss points. You still have a reference to 3.1.1 in section 5.1.2, which I guess should now be a reference to 5.1.1. I didn't check if there are any other similar internal references that need fixing.
(Terry Manderson; former steering group member) No Objection