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Re: [Iot-onboarding] How to locate the EST server on a network?

Michael Richardson <mcr+ietf@sandelman.ca> Tue, 14 January 2020 21:20 UTC

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From: Michael Richardson <mcr+ietf@sandelman.ca>
To: "M. Ranganathan" <mranga@gmail.com>, iot-onboarding@ietf.org
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Date: Tue, 14 Jan 2020 16:20:01 -0500
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Subject: Re: [Iot-onboarding] How to locate the EST server on a network?
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Toerless Eckert <tte@cs.fau.de> wrote:
    > If you want to use BRSKI, you would use the DNS-SD service name
    > brski-registrar, see BRSKI draft section 8.6. If you just want to do
    > EST alone (again, that would only result in insecure "duckling" initial
    > enrolment but sufficient for renewal/rekeying), the service name in DNS
    > is "est". The ACP draft specifies the service names for discovery via
    > GRASP, which i guess might not be your fist choice outside of ANIMA
    > today ;-).

DNS-SD is an optional thing for BRSKI!
The MTI is a GRASP DULL message to find the join proxy.

If you don't have a device->network trust issue (because your wires carry
implicit trust), then you can use EST with IDevID to do enrollment of an LDevID.
DNS-SD is a very good way.

Owen and Rifaat's Cloud Registrar document provides a number of other
interesting options too.

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

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