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Minutes Webex 09 December 2014, 6TiSCH Security Task Force

=== Dial-in information ===

English : New York Time 6tisch security
Tuesday, December 9, 2014 | 9:00 am Eastern Standard Time (GMT-05:00)
Meeting number:   641 709 118
Meeting password: joinjoin
Audio connection:
      1-877-668-4493 Call-in toll free number (US/Canada)
      1-650-479-3208 Call-in toll number (US/Canada)

Access code: 641 709 118
Meeting link:
        https://ietf.webex.com/ietf/j.php?MTID=m1aa12258a83109b4ae291fb0c2bd92d6

The etherpad we have used is at:
       http://etherpad.tools.ietf.org:9000/p/6tisch-security-6top-xml.txt

=== Agenda ===

0) Agenda bashing

1) Join protocol details

    a) desired properties
    b) realizable properties

    #1a-b) focus on routing/communication flow related aspects join protocol (we discussed MAC-related join-relevant
    aspects during the conf call of Tue Dec 2, 2014, 9am EST). For slides, see
    https://drive.google.com/folderview?id=0B2a6Ilxu1XfCNF9JaXR1ZXlzZlU&usp=sharing (same slides as sent out
    prior to Dec 2, 2014, 9am EST call) Relevant slides: Slides 23-25 (contained in entire slide deck
    (ppt), but also in excerpt (pdf))

2) Next steps:
    a) consensus on 1#a and 1#b
        #2a): confirm consensus on MAC (as discussed last week) and routing/communication flow aspects
        #2c) {as consequence of two items above} what to squeeze into architecture draft
    b) form tiger team to work out details
        - project phases
        - communication of sub-results
    c) what to squeeze into architecture draft, etc.

=== Slides ===

=== Attending ===

  • Rene Struik
  • Guiseppe Piro
  • Michael Richardson
  • Mike Seewald
  • Pascal Thubert

=== Action item ===

  • ask Pat Kinney (whether in 2012 | to make sure that in 2015 ) we can send the Schedule IE in a data message e.g. an RA message from the JA to the KN, after the node obtained a key and sent a RS.

=== Minutes ===

  • Rene brings up Yoshi's e-mail on whether some piece of the beacon is encrypted. Can a joining node get enough information?
  • Ambiguous text in IEEE802.15.4. Rene brings up IEEE802.15.4-2012 TSCH with list of parameters. Time Slot IE is in the payload. If encrypted, a joining node will not see it.
  • Discussion about security vulnerability of exposing schedule to attacker. Pascal suggests that only enough schedule be exposed for join needs.

Updated