The synonyms were introduced some time ago, and, indeed, the names are
non-normative, and may not even be unambiguous. Only the numbers matter
in an OID in an encoding.
However, the recent introduction of Unicode labels, as normative and
unambigous names gives a new naming scheme to the (same) OID tree that
enables names (Unicode labels) to be used in machine communication if
desired. The ASN.1 type is called OID_IRI and provides for node
identification using Unicode labels. Unicode labels with names similar
to the old ASCII names have been assigned for many of the top-level
arcs, and more will be added over time.
The OID_IRI type is related to (but not dependent on) the application
for an "oid" IRI scheme, but for consistency this is desired. See I-D
Alfred � wrote:
Folks / to whom it concerns,
during recent reviews of active I-Ds containing ASN.1 related
to the X.500 framework, I found that a couple of these do not
consistently employ the revised name of the top-level OID branch
but instead use the outdated/legacy name
Some drafts use a mix of both names.
I suggest that the modern version joint-iso-itu-t(2) be used
consistently within all new drafts / draft versions, unless
intentionally and explicitely for historical evidence reference
has to be made to the old name.
Prof John Larmouth
Larmouth T&PDS Ltd
(Training and Protocol Design Services Ltd)
1 Blueberry Road
Tel: +44 161 928 1605