RFC 
 2158 
 TOC 
Network Working GroupH. Alvestrand
Request for Comments: 2158UNINETT
Category: Standards TrackJanuary 1998


X.400 Image Body Parts

Status of this Memo

This document specifies an Internet standards track protocol for the Internet community, and requests discussion and suggestions for improvements. Please refer to the current edition of the “Internet Official Protocol Standards” (STD 1) for the standardization state and status of this protocol. Distribution of this memo is unlimited.

Copyright Notice

Copyright © The Internet Society (1998). All Rights Reserved.


 RFC 
 2158 
 TOC 

Table of Contents

1.  Introduction
2.  Newly defined X.400 body parts
    2.1.  The JPEG body part
    2.2.  The GIF body part
3.  Defined equivalences with MIME types
    3.1.  image/jpeg - jpeg-body-part
    3.2.  image/jpeg - FTAM EMA JPEG
    3.3.  image/gif - gif-body-part
    3.4.  image/gif - FTAM EMA GIF
4.  Security Considerations
5.  References (BOILERPLATE)
6.  Author's Address (BOILERPLATE)
7.  Full Copyright Statement (BOILERPLATE)
§  Author's Address
§  Intellectual Property and Copyright Statements




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1.  Introduction

This document contains the body parts defined in RFC 1495 for carrying image formats that were originally defined in MIME through an X.400 system.

It also documents the OIDs assigned to these data formats as FTAM body parts, which allow the MIME types to be converted to FTAM body parts; this will probably be more useful than the new body parts defined here.



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2.  Newly defined X.400 body parts



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2.1.  The JPEG body part

The following Extended Body Part is defined for JPEG data streams. It has no parameters.

       jpeg-body-part EXTENDED-BODY-PART-TYPE
         DATA            OCTET STRING
         ::= mime-jpeg-body

       mime-jpeg-body OBJECT IDENTIFIER ::=
               { mixer-bp-data 3 }

The content is as defined in [MIME].



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2.2.  The GIF body part

The following Extended Body Part is defined for GIF data streams. It has no parameters.

       gif-body-part EXTENDED-BODY-PART-TYPE
         DATA            OCTET STRING
         ::= mime-gif-body

       mime-gif-body OBJECT IDENTIFIER ::=
               { mixer-bp-data 4 }

The content is as defined in [MIME].



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3.  Defined equivalences with MIME types



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3.1.  image/jpeg - jpeg-body-part

X.400 Body Part: Extended Body Part, OID jpeg-body-part MIME Content-Type: image/jpeg Conversion: None



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3.2.  image/jpeg - FTAM EMA JPEG

X.400 Body Part: FTAM EMA JPEG MIME Content-Type: image/jpeg Conversion: None

The OID assigned to JPEG by EMA in [MAWG] is

   { ema objects(2) messaging (2) attachments(1) jpeg-image(6) }

while EMA's OID is

   { joint-iso-ccitt(2) country(16) us(840) organization(1)
   ema(113694) }

making the total OID, numeric only

   { 2 16 840 1 113694 2 2 1 6 }


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3.3.  image/gif - gif-body-part

X.400 Body Part: Extended Body Part, OID gif-body-part MIME Content-Type: image/gif Conversion: None



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3.4.  image/gif - FTAM EMA GIF

   X.400 Body Part: FTAM EMA GIF
   MIME Content-Type: image/jpeg
   Conversion: None

The OID assigned to JPEG by EMA in [MAWG] is

   { ema objects(2) messaging (2) attachments(1) gif-image(4) }


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4.  Security Considerations

Security issues are not considered in this memo.



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5.  References (BOILERPLATE)

This RFC contained boilerplate in this section which has been moved to the RFC2223-compliant unnumbered section "References."



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6.  Author's Address (BOILERPLATE)

This RFC contained boilerplate in this section which has been moved to the RFC2223-compliant unnumbered section "Author's Address."



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7.  Full Copyright Statement (BOILERPLATE)

This RFC contained boilerplate in this section which has been moved to the RFC2223-compliant unnumbered section "Full Copyright Statement."



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Author's Address

  Harald Tveit Alvestrand
  UNINETT
  Postboks 6883 Elgeseter
  N-7002 TRONDHEIM
Phone:  +47 73 59 70 94
Email:  Harald.T.Alvestrand@uninett.no


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Full Copyright Statement

Intellectual Property