UTA Virtual Interim Meeting

23 April 2020 21:00-22:00 UTC

Chairs:
    Leif Johansson
    Valery Smyslov

AD:
    Barry Leiba

WebEx: https://ietf.webex.com/ietf/j.php?MTID=m4fb15602d48d5eebfb9b3a3a0da58fc1

Meeting Slides: https://datatracker.ietf.org/meeting/interim-2020-uta-01/session/uta

Etherpad: https://etherpad.ietf.org:9009/p/notes-ietf-interim-2020-uta01?useMonospaceFont=true

Jabber: xmpp:uta@jabber.ietf.org?join
  * For the virtual microphone queue, you may want to say "help q"
  * To add your name to the queue send "q+"
  * To remove yourself from the queue send "q-"

Note takers: Alexey Melnikov
Jabber relay:
Queue manager: Valery Smyslov

Agends:
1. Administrivia and agenda bashing
   - 5 min
2. WG documents status update
   - 5 min
3. Recommendations for Secure Use of 
   Transport Layer Security (TLS) 
   and Datagram Transport Layer Security (DTLS)  
   (draft-sheffer-uta-bcp195bis-00)
   - 15 min (Peter)
4. TLS/DTLS 1.3 Profiles for the Internet of Things 
   (draft-tschofenig-uta-tls13-profile-04)
   - 15 min (Hannes)
5. CBOR compression of RFC 7925 Certificates 
   (draft-mattsson-tls-cbor-cert-compress-00, 
   draft-raza-ace-cbor-certificates-04)
   - 15 min (John)
6. Open Mic

*******************************
Notes:

Leif presenting Chairs' slides: rules of the virtual interim, Note Well, etc.

One RFC ("Require TLS SMTP extension") was published since Singapore

draft-ietf-uta-tls-for-email-05 stuck in RFC Editor's queue on a Normative Reference

Peter Saint-Andre presented draft-sheffer-uta-bcp195bis-00

 John Mattsson suggested that recommendations about cipher lengths should be tightened
 PSA: good idea if this is adopted by the WG

 Leif noted that there have been proposed errata and we should look at those
 PSA: good idea

 Some support in Jabber to adopt (7 people including 2 authors) 

 Leif: either this version or next one is likely to be adopted

 The document name should be draft-ietf-uta-rfc7525-bis (not -bcp195bis)

Hannes talked about draft-tschofenig-uta-tls13-profile-04 (TLS/DTLS 1.3 profile for IoT devices)

 Hannes is asking for adoption

 Alexey: supportive of adopting this in UTA. Need to make sure thast it is aligned with the previously presented document.
 Alexey: cTLS work will delay this? How long do you want to wait?
 Hannes: good point. Not sure if we want to do a quick update or longer update.
 Alexey: do a quick revision just for TLS/DTLS 1.3 and then another one for cTLS later
 Leif: +1
 
 About 7 people in favour of adopting this in the WG. Stephen is ambivalent, due to cTLS
 

John Mattsson is presenting draft-mattsson-tls-cbor-cert-compress-00 (CBOR compression of RFC 7925 Certificates)

 Current plan to submit this to COSE WG, which is rechartering to include this work
 
 This is going to register a new [special purpose] compression algorithm for TLS.
 
 Hannes: sounds cool. Looking forward to this being used.
 Hannes: what is ASN.1 schema here?
 
 Leif: just to confirm: you are not asking for adoption, but want to make sure that UTA participants are aware of this work?
 John: right
 
 Leif: is this work only limited to cTLS?
 John: this is not limited to cTLS. This is more input on Hannes' draft-tschofenig-uta-tls13-profile-04 draft.
 
 Valery: are you going to present this in TLS WG?
 John: I haven't asked TLS yet.
 Valery: It needs new codepoint from TLS WG.
 John: TLS WG participants know about this work.

*****************************

WebEx: 17 participants
Jabber: 9 participants

Virtual bluesheets:

1. Leif Johansson/SUNET
2. Yaron Sheffer, Intuit
3. Valery Smyslov, ELVIS-PLUS
4. Michael Breuer, ilSF
5. Alexey Melnikov, Isode Ltd
6. Yoshiro YONEYA, JPRS
7. tim costello, BT
8. Jim Fenton, Altmode Networks
9. Thomas Fossati, arm
10. Peter Yee, AKAYLA
11. Peter Saint-Andre, Mozilla
12. Stephen Farrell, Trinity College Dublin
13. Russ Housley, Vigil Security, LLC
14. Dmitry Belyavskiy, TCI
15. John Mattsson, Ericsson
16. Hannes Tschofenig, Arm