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Minutes Webex 12th May 2014, 6TiSCH Security
Taking notes (using Etherpad)
- Pascal Thubert
Present (alphabetically)
- Giuseppe Piro
- Hank Mauldin
- Max Pritikin
- Michael Behringer
- Nancy Cam-Winget
- Pascal Thubert
- René Struik
- Tom Phinney
Recording
Agenda
- Look at Join Protocol
Minutes
- [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
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