Subject: [6tisch] Minutes Webex 12th May 2014, 6TiSCH Security

From: "Pascal Thubert (pthubert)" <[email-masked]>
Date: Mon, 12 May 2014 15:42:33 +0000

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
9.
Recording
·        Webex recording<https://cisco.webex.com/ciscosales/lsr.php?RCID=647fa59f817d41c9943729dcf312c9b3>
Agenda
1.     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

Cheers;

Pascal