Re: [Anima-bootstrap] 6tisch join -01 documented posted

Michael Richardson <mcr+ietf@sandelman.ca> Tue, 15 November 2016 01:02 UTC

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From: Michael Richardson <mcr+ietf@sandelman.ca>
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Comments: In-reply-to Brian E Carpenter <brian.e.carpenter@gmail.com> message dated "Tue, 15 Nov 2016 08:28:25 +1300."
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Date: Tue, 15 Nov 2016 10:02:49 +0900
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Cc: anima-bootstrap <anima-bootstrap@ietf.org>, 6tisch-security <6tisch-security@ietf.org>
Subject: Re: [Anima-bootstrap] 6tisch join -01 documented posted
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Brian E Carpenter <brian.e.carpenter@gmail.com> wrote:
    >> These are the interactions, and I will try to give some names to the various
    >> interactions in a future document, but suggestions most welcome.
    >>
    >> 1) pledge <-> Join Assistant (JA)
    >> Discovery of JA:   mDNS and/or M_FLOOD

    > Is Join Assistant the agreed terminology (instead of Proxy)?

I prefer it, and it's the accepted 6tisch terminology, but I don't think that
ANIMA has agreed to use that term, and is using Proxy.

    >> 2) Join Assistant *discovery* of Registrar
    >> in 6tisch, omitted, will be provisioned
    >> in ANIMA, uses GRASP M_DISCOVERY

    > Is it permissible for the Registrar to act as its own Join Assistant
    > for on-link neighbors? (I can't see why not.)

Yes, these are roles, not machines.

    >> 3) Join Assistant tentative admission control (used in 6tisch, to provide
    >> {optional?} "move along" feedback.).
    >> 6tisch, currently M_REQ_NEG/M_END over *TCP*, need to be fixed.
    >>
    >> 4) pledge <-> Registrar.
    >> in ANIMA, this is pledge---TCP/HTTPS---> Registrar (RFC7030)
    >> in 6tisch-zero-touch, this is Registrar ---CoAP/DTLS--> pledge [maybe EDHOC]
    >> (CoMI: draft-ietf-netconf-keystore-00 )
    >> in 6tisch-minimal-security, this is pledge-->CoAP/EDHOC--> Registrar
    >>

    > Thanks, a useful summary.

I'd like to give a name to each exchange.  BRSKI is clearly covers #4, but
arguably, it covers all four interactions, and #4 is the BRSKI mode of EST.



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