http://www.ietf.org/internet-drafts/draft-santesson-tls-ume-04.txt says:
This document does not specify how the server stores the
user_principal_name, or how exactly it might be used to locate a
certificate. For instance, it might be appropriate to do a case-
insensitive lookup. It is RECOMMENDED that the server processes the
user_principal_name with a stringprep profile [N7] appropriate for
the identity in question, such as Nameprep [N8] for the portion
domain portion of UPN, SASLprep [N9] for the user portion of the UPN
and stringprep appendix B.3 [N7] as mapping table for case folding.
Given that the first and second sentence make it clear that the use of
StringPrep is not required, I suggest using MAY instead of RECOMMENDED
in the third sentence. RECOMMENDED is the same as SHOULD according to
RFC 2119, and is a fairly strong recommendation. Its use seem
misplaced here.
It may be better to avoid RFC 2119 language completely here, because
the entire paragraph is merely an example of what you can do.
Thanks,
Simon
The IESG <iesg-secretary(_at_)ietf(_dot_)org> writes:
The IESG has received a request from an individual submitter to consider the
following documents:
- 'TLS User Mapping Extension'
<draft-santesson-tls-ume-04.txt> as a Proposed Standard
- 'TLS Handshake Message for Supplemental Data'
<draft-santesson-tls-supp-00.txt> as a Proposed Standard
The previous Last Call on draft-santesson-tls-ume-03.txt has finished.
However, to resolve some comments that were received during the
previous Last Call, the document has been updated and
draft-santesson-tls-supp-00.txt was written. Due to the significant
changes in one area of the document, the IESG is making a second
call for comments. This comment period is shorter since the majority
of the document is unchanged.
The IESG plans to make a decision in the next few weeks, and solicits
final comments on this action. Please send any comments to the
iesg(_at_)ietf(_dot_)org or ietf(_at_)ietf(_dot_)org mailing lists by
2006-04-11.
The file can be obtained via
http://www.ietf.org/internet-drafts/draft-santesson-tls-ume-04.txt
http://www.ietf.org/internet-drafts/draft-santesson-tls-supp-00.txt
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