Re: [Anima-bootstrap] DRAFT minutes up to 2016-09-13

Michael Richardson <mcr+ietf@sandelman.ca> Thu, 15 September 2016 01:32 UTC

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From: Michael Richardson <mcr+ietf@sandelman.ca>
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Date: Wed, 14 Sep 2016 21:32:24 -0400
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Subject: Re: [Anima-bootstrap] DRAFT minutes up to 2016-09-13
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Michael Richardson <mcr+ietf@sandelman.ca> wrote:
    > We had some significant discussions about the advantage of the NETCONF
    > "call-home" role reversal, and explained in this time sequence diagram that
    > has the TCP and TLS activities:

...

    > It was noting:  By flipping the TLS connection the handshake works out nicely
    > in our favor: the TLSCertificate payload is the 802.1AR cert and then
    > *after* it is authenticated the client could respond with the ownership
    > voucher cert  assuming the necessary extension could be defined.

having just read more TLS1.3 stuff...

ADDITIONALLY, TLS 1.3 is much more IKEv2 like, in that it does privacy first
              using an optional DH, and the client is expected to guess what
              the server wants, and if it gets it wrong, the server will use
              HelloRetryRequest to tell it what it wants.

So by reversing the things, we remove a bunch of guessing on the part of the
new pledge, and let the Registrar deal with supporting all ciphers/groups
under the sun, with the new pledge being deployed with only the latest useful
things (plus whatever gets defined as SHOULD+).

--
Michael Richardson <mcr+IETF@sandelman.ca>ca>, Sandelman Software Works
 -= IPv6 IoT consulting =-