RFC 6885 on Stringprep Revision and Problem Statement for the Preparation and Comparison of Internationalized Strings (PRECIS)

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        RFC 6885

        Title:      Stringprep Revision and Problem Statement 
                    for the Preparation and Comparison of 
                    Internationalized Strings (PRECIS) 
        Author:     M. Blanchet, A. Sullivan
        Status:     Informational
        Stream:     IETF
        Date:       March 2013
        Mailbox:    Marc.Blanchet@viagenie.ca, 
                    asullivan@dyn.com
        Pages:      34
        Characters: 72167
        Updates/Obsoletes/SeeAlso:   None

        I-D Tag:    draft-ietf-precis-problem-statement-09.txt

        URL:        http://www.rfc-editor.org/rfc/rfc6885.txt

If a protocol expects to compare two strings and is prepared only for
those strings to be ASCII, then using Unicode code points in those
strings requires they be prepared somehow.  Internationalizing Domain
Names in Applications (here called IDNA2003) defined and used
Stringprep and Nameprep.  Other protocols subsequently defined
Stringprep profiles.  A new approach different from Stringprep and
Nameprep is used for a revision of IDNA2003 (called IDNA2008).  Other
Stringprep profiles need to be similarly updated, or a replacement of
Stringprep needs to be designed.  This document outlines the issues
to be faced by those designing a Stringprep replacement.

This document is a product of the Preparation and Comparison of Internationalized Strings Working Group of the IETF.

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