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ObsoletedPROPOSED STANDARDIETF stream

RFC 7564: PRECIS Framework: Preparation, Enforcement, and Comparison of Internationalized Strings in Application Protocols

This RFC has been replaced. Do not implement against it for new work — it was formally obsoleted by RFC 8264.

Current document in this lineage: RFC 8264 — PRECIS Framework: Preparation, Enforcement, and Comparison of Internationalized Strings in Application Protocols

In plain English — editorial summary, not part of the RFC

Application protocols using Unicode characters in protocol strings need to properly handle such strings in order to enforce internationalization rules for strings placed in various protocol slots (such as addresses and identifiers) and to perform valid comparison operations (e.g., for purposes of authentication or authorization). This document defines a framework enabling application protocols to perform the preparation, enforcement, and comparison of internationalized strings ("PRECIS") in a way that depends on the properties of Unicode characters and thus is agile with respect to versions of Unicode. As a result, this framework provides a more sustainable approach to the handling of internationalized strings than the previous framework, known as Stringprep (RFC 3454). This document obsoletes RFC 3454.

Document record

Document ID
RFC7564
Published
May 2015
Authors
P. Saint-Andre; M. Blanchet
Status
PROPOSED STANDARD
Stream
IETF
Area
art
Pages
40
Also known as
—
Obsoletes:
RFC 3454
Obsoleted by:
RFC 8264

Topics

Standards lineage

This document is one revision in a chain of 3 RFCs, each formally replacing the one before it.

  1. RFC 3454 (2003)
  2. RFC 7564 (2015)
  3. RFC 8264 (2017) ✓

Read the full history of PRECIS Framework: Preparation, Enforcement, and Comparison of Internationalized Strings in Application Protocols →

Referenced by

One later RFC formally updates or obsoletes part of this document.

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The document record above — title, authors, date, status, stream, area, relationships, DOI and errata — is imported verbatim from the public RFC Editor index. The “in plain English” section is editorial: written by The metasystema editorial team, not part of the RFC. Where the two differ, the RFC text governs.

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canonical URL: /rfc/7564-precis-framework-preparation-enforcement-and-comparison-of-internationalized-str