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[Anima-bootstrap] alternate to domain-certificate-identifier missing from voucher yang

Michael Richardson <mcr+ietf@sandelman.ca> Fri, 24 March 2017 18:55 UTC

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From: Michael Richardson <mcr+ietf@sandelman.ca>
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Date: Fri, 24 Mar 2017 11:09:00 -0500
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Subject: [Anima-bootstrap] alternate to domain-certificate-identifier missing from voucher yang
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The MASA can use the combination of:
    trusted-ca-certificate plus
      (domain-certificate-identifier.subject xor cn-id xor dns-id)

to indirectly point at the JRC's certificate. There could be a series of
certificates in the chain between the trusted-ca-certificate and the
thing the voucher staples down, clearly.

In the yang, we write about trusted-ca-certificate:

            This field is optional because it may not be needed by all
            bootstrapping protocols.

So I was looking for the other way, where one points right at the
JRC's public key.  I didn't find it.  So I thought: OH, of course,
one could specify a certificate chain of zero length, by putting
the JRC's subjectKeyInfo into trusted-ca-certificate!

Or can I?  I don't think we got the reference in trusted-ca-certificate
correct (and I don't have 5280 on the plane with me. Bad me, disk space is
cheap) to check.  I think that:
       An X.509 v3 certificate structure as specified by RFC 5280,
       Section 4

is too much, I think we just wanted the subjectKeyInfo as suggested
by Sean Turner.

(Okay, I will follow up to my email and check)

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

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