Last Call Review of draft-presuhn-rfc2482-historic-
review-presuhn-rfc2482-historic-secdir-lc-kaufman-2010-07-30-00

I have reviewed this document as part of the security directorate's ongoing
effort to review all IETF documents being processed by the IESG.  These
comments were written primarily for the benefit of the security area directors.
 Document editors and WG chairs should treat these comments just like any other
last call comments.

This is an easy one. It proposes reclassifying an Informational RFC to
Historic. There are no non-trivial security considerations.

RFC2482 is an informational RFC describing an escape sequence in UTF* character
encodings to embed language tags. While the history of the feature is not
clearly stated in the document, it appears that this was an up-and-coming
feature in the ISO10646 / UNICODE world at the time RFC2482 was submitted, but
that it since has fallen on hard times and is now The UNICODE Consortium
strongly recommends against its use. The original proposal had no security
considerations, and this document notes correctly that not using the feature
can only improve security. The authors of the new document include the authors
of the old, so this is unlikely to be some sort of turf war.

Other notes:

RFC2482 said:

   This document has been accepted by ISO/IEC JTC1/SC2/WG2 in meeting
   #34 to be submitted as a recommendation from WG2 for inclusion in
   Plane 14 in part 2 of ISO/IEC 10646.

It would be good to note whether WG2 ever accepted the proposal and whether
either ISO/IEC JTC1/SC2/WG2 or WG2 have officially deprecated it to reassure
the reader that there is no controversy over its status in those communities.