The IESG has approved the following document: - 'Stringprep Revision and PRECIS Problem Statement' (draft-ietf-precis-problem-statement-09.txt) as Informational RFC This document is the product of the Preparation and Comparison of Internationalized Strings Working Group. The IESG contact persons are Pete Resnick and Barry Leiba. A URL of this Internet Draft is: http://datatracker.ietf.org/doc/draft-ietf-precis-problem-statement/ Technical Summary If a protocol expects to compare two strings and is prepared only for those strings to be ASCII, then using Unicode codepoints 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. Working Group Summary The document records the consensus from discussion at the NEWPREP BoF (IETF 77, March 2010) and the resulting PRECIS WG regarding the problem to be solved in developing a replacement for the Stringprep technology in application protocols other than IDNA. There has not been controversy about the nature of the problem to be solved, and consensus was not rough. Document Quality The document has provided a clear basis for work on the proposed PRECIS framework, and thus has served its purpose. Personnel The Document Shepherd is Peter Saint-Andre. The Responsible Area Director is Pete Resnick.
