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Minutes Webex 12th May 2014, 6TiSCH Security

Taking notes (using Etherpad)

  1. Pascal Thubert

Present (alphabetically)

  1. Giuseppe Piro
  2. Hank Mauldin
  3. Max Pritikin
  4. Michael Behringer
  5. Nancy Cam-Winget
  6. Pascal Thubert
  7. René Struik
  8. Tom Phinney



  1. Look at Join Protocol


  • [07.08] Meeting starts

Discussion on the join process in WirelessHART

René Symmetric is programmed into the device

Michael B: is that the shared network wide secret ?

René : ... <Pascal: I think that means yes>

Tom: Yes, Emerson asked that all devices have a wired interface that is used for that purpose

Max: is the join and key exchange in the clear?

Tom: no, encrypted with symmetric key

Max: then any device that has the symmetric key can read it

René: Yes <Pascal: I think I heard Tom disagree>

René: Single message from untrusted device creates a multihop communication.

René could get a similar result with asym key.

Tom: you still need the network ID in the device when many networks.

Max: An device ID

Tom: taking a device from factory, tag a functional identity in and a network ID, and what have you

Max: touch portion could be alleviated to address scale if policy can allow a device that is not expected.

  • [08.06] meeting ends