RFC 1922 (rfc1922) - Page 1 of 27

Chinese Character Encoding for Internet Messages

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Network Working Group                                            HF. Zhu
Request for Comments: 1922                                    Tsinghua U
Category: Informational                                           DY. Hu
                                                              Tsinghua U
                                                                ZG. Wang
                                                                    CITS
                                                                 TC. Kao
                                                                     III
                                                              WCH. Chang
                                                                     III
                                                              M. Crispin
                                                            U Washington
                                                              March 1996


            Chinese Character Encoding for Internet Messages

Status of this Memo

   This memo provides information for the Internet community.  It does
   not specify an Internet standard.  Distribution of this memo is
   unlimited.

Abstract

   This memo describes methods of transporting Chinese characters in
   Internet services which transport text, such as electronic mail
   [RFC-822], network news [RFC-1036], telnet [RFC-854] and the World
   Wide Web [RFC-1866].

Introduction

   As the use of Internet covers more and more Chinese people in the
   world, the need has increased for the ability to send documents
   containing Chinese characters on the Internet.  The methods described
   in this document provide means of transporting existing Chinese
   character sets as well as leaving space for future extension.

   This document describes two encodings, ISO-2022-CN and
   ISO-2022-CN-EXT.  These are designed with interoperability in mind
   and are encouraged in this document for current Chinese interchange;
   they are 7-bit, support both simplified and traditional characters
   using both GB and CNS/Big5, and do not impose any unusual quoting
   requirements on ASCII characters.

   As important related issues, this document gives detailed
   descriptions of the two encodings CN-GB and CN-Big5, and a brief
   description of ISO/IEC 10646 [ISO-10646].  CN-GB and CN-Big5 are



Zhu, et al                   Informational
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