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Re: [Anima] Adam Roach's Discuss on draft-ietf-anima-bootstrapping-keyinfra-22: (with DISCUSS and COMMENT)

Benjamin Kaduk <kaduk@mit.edu> Thu, 11 July 2019 21:49 UTC

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Date: Thu, 11 Jul 2019 16:48:48 -0500
From: Benjamin Kaduk <kaduk@mit.edu>
To: Eliot Lear <lear@cisco.com>
Cc: Michael Richardson <mcr+ietf@sandelman.ca>, draft-ietf-anima-bootstrapping-keyinfra@ietf.org, Adam Roach <adam@nostrum.com>, anima-chairs@ietf.org, The IESG <iesg@ietf.org>, Toerless Eckert <tte+ietf@cs.fau.de>, anima@ietf.org
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Subject: Re: [Anima] Adam Roach's Discuss on draft-ietf-anima-bootstrapping-keyinfra-22: (with DISCUSS and COMMENT)
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On Thu, Jul 11, 2019 at 11:44:55PM +0200, Eliot Lear wrote:
> One thought:
> 
> I think the simplest way to address the bulk of both Adam’s and Warren’s concern is to require the device to emit via whatever management interface exists, upon request, a voucher that it has signed with its own iDevID.  It would have to be nonceless with perhaps a long expiry, and that would cover a number of other use cases as well.  That way if the manufacturer goes out of business, or if the owner wants to transfer the device without manufacturer consent, there is a way forward.

An interesting thought.  Would there be a way (or a need) to usefully audit
such voucher issuance?

-Ben

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