A New Internet-Draft is available from the on-line Internet-Drafts directories.
Title : PRECIS Framework: Handling Internationalized Strings in Protocols
Author(s) : Marc Blanchet
Peter Saint-Andre
Filename : draft-blanchet-precis-framework-01.txt
Pages : 24
Date : 2011-05-17
Application protocols that make use of Unicode code points in
protocol strings need to prepare such strings in order to perform
comparison operations (e.g., for purposes of authentication or
authorization). In general, this problem has been labeled the
"preparation and comparison of internationalized strings" or
"PRECIS". This document defines a framework that enables application
protocols to prepare various classes of strings in a way that depends
on the properties of Unicode code points. Because this framework
does not depend on large tables of Unicode code points as in
stringprep (RFC 3454), it is more agile with regard to changes in the
underlying Unicode database and thus provides improved flexibility to
application protocols. A specification that reuses this framework
either can directly use the base string classes defined in this
document or can subclass the base string classes as needed. This
framework uses an approach similar to that of the revised
internationalized domain names in applications (IDNA) technology (RFC
5890, RFC 5891, RFC 5892, RFC 5893, RFC 5894) and thus adheres to the
high-level design goals described in RFC 4690, albeit for non-IDNA
technologies. This document obsoletes RFC 3454.
A URL for this Internet-Draft is:
http://www.ietf.org/internet-drafts/draft-blanchet-precis-framework-01.txt
Internet-Drafts are also available by anonymous FTP at:
ftp://ftp.ietf.org/internet-drafts/
This Internet-Draft can be retrieved at:
ftp://ftp.ietf.org/internet-drafts/draft-blanchet-precis-framework-01.txt
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