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Re: [6tisch-security] reminder of design team meeting today

Michael Richardson <mcr+ietf@sandelman.ca> Mon, 11 December 2017 14:29 UTC

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From: Michael Richardson <mcr+ietf@sandelman.ca>
to: 6tisch-security@ietf.org
CC: Benjamin Damm <bdamm@silverspringnet.com>, Panos Kampanakis <pkampana@cisco.com>, max pritikin <pritikin@cisco.com>, Göran Selander <goran.selander@ericsson.com>
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Date: Mon, 11 Dec 2017 09:29:25 -0500
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Subject: Re: [6tisch-security] reminder of design team meeting today
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Diagram for discussion:
https://bitbucket.org/6tisch/draft-richardson-6tisch-dtsecurity-secure-join/src/d61cbe958d37626fda9096084ec3906de46ea0fa/technology-components.svg?at=master&fileviewer=file-view-default

and attached.
See in particular the "yellow" section, which I just named for the next
available  nice colour my palette showed me.  I hesitate to give a name to
that constituency.

Perhaps I have mis-represented the desires, and maybe there is yet another
collection.  If "yellow" would be happy with JSON format vouchers, then it
would just be BRSKI over CoAP/DTLS.
(The savings is only a TCP stack, and reuse of CoAP)

On the other hand, I can see if you've bothered to do all of DTLS including
certificate handling, then having CMS is perhaps not that big a deal,
although I note that mbedtls (AFAIK) does not have CMS code.

I'm interested in the part in pink, with the caveat that we need to *try*
with DTLS in order to have enough data to justify OSCORE+EDHOC.


Michael Richardson <mcr+ietf@sandelman.ca> wrote:
    > etherpad:
    > https://etherpad.tools.ietf.org/p/6tisch-security?useMonospaceFont=true

    > Conference audio/video at https://appear.in/6tisch-coap-est-minimal

    > agenda:
    > 1) review of last time.
    > 2) what documents do we need to write?!?
    > 3) where will they be progressed?

    > See illustration of documents in next email.




--
Michael Richardson <mcr+IETF@sandelman.ca>, Sandelman Software Works
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