Browse Prior Art Database

Korean Character Encoding for Internet Messages (RFC1557)

IP.com Disclosure Number: IPCOM000002390D
Original Publication Date: 1993-Dec-01
Included in the Prior Art Database: 2000-Sep-12
Document File: 6 page(s) / 8K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

U. Choi: AUTHOR [+3]

Abstract

This document describes the encoding method being used to represent Korean characters in both header and body part of the Internet mail messages [RFC822]. This encoding method was specified in 1991, and has since then been used. It has now widely being used in Korean IP networks.

This text was extracted from a ASCII document.
This is the abbreviated version, containing approximately 34% of the total text.

Network Working Group U. Choi

Request for Comments: 1557 K. Chon

Category: Informational KAIST

H. Park

Solvit Chosun Media

December 1993

Korean Character Encoding for Internet Messages

Status of this Memo

This memo provides information for the Internet community. This memo

does not specify an Internet standard of any kind. Distribution of

this memo is unlimited.

Introduction

This document describes the encoding method being used to represent

Korean characters in both header and body part of the Internet mail

messages [RFC822]. This encoding method was specified in 1991, and

has since then been used. It has now widely being used in Korean IP

networks.

This document also describes the name of the encoding method which is

to be used in order to match the message header and body format of

MIME [MIME1, MIME2].

This document describes only the encoding method for plain text.

Other text subtypes, rich text and similar forms of text, are beyond

the scope of this document.

Description

It is assumed that the starting code of the message is ASCII. ASCII

and Korean characters can be distinguished by use of the shift

function. For example, the code SO will alert us that the upcoming

bytes will be a Korean character as defined in KSC 5601. To return

to ASCII the SI code is used.

Therefore, the escape sequence, shift function and character set used

in a message are as follows:

SO KSC 5601

SI ASCII

ESC $ ) C Appears once in the beginning of a line

before any appearance of SO characters.

The KSC 5601 [KSC5601] character set that includes Hangul, Hanja

(Chinese ideographic characters), graphic and foreign characters,

etc., is two bytes long for each character.

For more information about Korean character sets please refer to the

KSC 5601-1987 document. Also, for more detailed information about

the escape sequence and the shift function you can look for the ISO

2022 [ISO2022] document.

Formal Syntax

Where this document in its formal syntax does not agree with the

description part, priority should be given to the formal syntax of

the document.

The notations used in this section of the document are according to

those used in STD 11, RFC 822 [RFC822] with the...