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Preparation and Comparison of Internationalized Strings Representing Simple User Names and Passwords

Document type: Replaced Internet-Draft (individual)
Document stream: No stream defined
Last updated: 2013-02-19 (latest revision 2012-09-23)
Intended RFC status: Unknown
Other versions: (expired, archived): plain text, pdf, html

Stream State:No stream defined
Document shepherd: No shepherd assigned

IESG State: Replaced by draft-ietf-precis-saslprepbis
Responsible AD: (None)
Send notices to: No addresses provided

This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found here:


This document describes how to handle Unicode strings representing simple user names and passwords, primarily for purposes of comparison. This profile is intended to be used by Simple Authentication and Security Layer (SASL) mechanisms (such as PLAIN and SCRAM-SHA-1), as well as other protocols that exchange simple user names or passwords. This document obsoletes RFC 4013.


Peter Saint-Andre <>
Alexey Melnikov <>

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid)