Hi,
It seems like there is agreement to specify a CBOR tag for a CBOR certificate.
I stated specifying this for the next -07 version, se below.
I started to specify a tag based on Laurance suggestion to tag an array
wrapping the CBOR Sequence. I don't know how to best specify this data item. It
would have been easy before when the CBOR Sequence was specified as a CDDL
group. Now when CBORCertificate is specified as an array with human-readable
text specifying that it is really a CBOR sequence, both CBORCertificate and [
CBORCertificate ] seems wrong....
Would a tag for a chain/bag or both be needed as well? If a tag for COSE_X509
with CBOR certificates is specified, that could potentially be used to tag a
single certificate as well.
Maybe it is confusing to use the COSE_X509 CDDL for CBOR certificates? A new
structure for CBOR certificates could then also be more compact by wrapping the
certs in arrays instead of bstr.
---------
## CBOR Tags Registry {#tags}
This document registers the following entries in the "CBOR Tags" registry under
the "Concise Binary Object Representation (CBOR) Tags" heading.
~~~~~~~~~~~
+------+------------------------------------------------------------+
| Tag | X.509 Public Key Algorithms |
+======+============================================================+
| TDB6 | Data Item: [ CBORCertificate ] |
| | Semantics: The CBORCertificate CBOR sequence wrapped in an |
| | array. |
| | Reference: This document |
+------+------------------------------------------------------------+
| TDB7 | Data Item: COSE_X509 |
| | Semantics: The content of each bstr is the bytes of a CBOR |
| | Certificate. |
| | Reference: This document |
+------+------------------------------------------------------------+
~~~~~~~~~~~
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