Additional Media Type Structured Syntax Suffixes
draft-hansen-media-type-suffix-regs-01
The information below is for an old version of the document.
| Document | Type | Active Internet-Draft (appsawg WG) | |
|---|---|---|---|
| Author | Tony Hansen | ||
| Last updated | 2012-04-16 (Latest revision 2012-04-05) | ||
| Replaced by | draft-ietf-appsawg-media-type-suffix-regs, RFC 6839 | ||
| Stream | Internet Engineering Task Force (IETF) | ||
| Formats | plain text xml htmlized pdfized bibtex | ||
| Stream | WG state | (None) | |
| Document shepherd | (None) | ||
| IESG | IESG state | I-D Exists | |
| Consensus boilerplate | Unknown | ||
| Telechat date | (None) | ||
| Responsible AD | (None) | ||
| Send notices to | (None) |
draft-hansen-media-type-suffix-regs-01
Network Working Group T. Hansen
Internet-Draft AT&T Laboratories
Intended status: Standards Track April 06, 2012
Expires: October 06, 2012
Additional Media Type Structured Syntax Suffixes
draft-hansen-media-type-suffix-regs-01
Abstract
This document defines several Structured Syntax Suffixes for use with
media type registrations. In particular, it defines and registers
the "+json", "+ber", "+der", "+fastinfoset" and "+wbxml" Structured
Syntax Suffixes.
Status of this Memo
This Internet-Draft is submitted in full conformance with the
provisions of BCP 78 and BCP 79.
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This Internet-Draft will expire on October 06, 2012.
Copyright Notice
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 2
2. When to Use these Structured Syntax Suffixes . . . . . . . . . 2
3. The +json Structured Syntax Suffix . . . . . . . . . . . . . . 2
4. The +ber and +der Structured Syntax Suffixes . . . . . . . . . 3
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5. The +fastinfoset Structured Syntax Suffix . . . . . . . . . . 4
6. The +wbxml Structured Syntax Suffix . . . . . . . . . . . . . 4
7. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 5
8. Security Considerations . . . . . . . . . . . . . . . . . . . 5
9. References . . . . . . . . . . . . . . . . . . . . . . . . . . 5
9.1. Normative References . . . . . . . . . . . . . . . . . . . 5
9.2. Informative References . . . . . . . . . . . . . . . . . . 6
Author's Address . . . . . . . . . . . . . . . . . . . . . . . . . 6
1. Introduction
[RFC3023] created the +xml suffix convention that may be used by
media types whose representation uses XML underneath, that is, they
could have been successfully parsed as if the media type had been
application/xml in addition to their being parsed as their media type
that is using the +xml suffix. [I-D.ietf-appsawg-media-type-regs]
defines a registry to be used for future Structured Syntax Suffixes.
A variety of Structured Syntax Suffixes have already been used in
some Media Type registration, in particular "+json", "+der",
"+fastinfoset" and "+wbxml". This document defines and registers
these Structured Syntax Suffixes in the Structured Syntax Suffix
registry, along with "+ber".
Discussion of this document should occur in the Apps Area Working
Group (apps-discuss@ietf.org).
2. When to Use these Structured Syntax Suffixes
Each of the Structured Syntax Suffixes defined in this document are
appropriate for use when the media type identifies the semantics of
the protocol payload. That is, knowing the semantics of the specific
media type provides for more specific processing of the content than
that afforded by generic processing of the underlying representation.
At the same time, using the suffix provides receivers of the media
types to do generic processing of the underyling representation in
cases where they do not need to handle specially the specific
semantics of the exact media type.
3. The +json Structured Syntax Suffix
[RFC4627] defines the "application/json" media type. The suffix
"+json" may be used with any media type whose representation follows
that established for "application/json". The Message Type Structured
Syntax Suffix registration form follows:
Name JavaScript Object Notation (JSON)
+suffix +json
References [RFC4627]
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Encoding considerations Per [RFC4627], JSON may be represented using
UTF-8, UTF-16, or UTF-32. When JSON is written
in UTF-8, JSON is 8bit compatible. When JSON is
written in UTF-16 or UTF-32, JSON is binary.
Interoperability considerations n/a
Security considerations See [RFC4627]
Contact Apps Area Working Group (apps-discuss@ietf.org)
Author/Change controller The Apps Area Working Group has change
control over this registration.
4. The +ber and +der Structured Syntax Suffixes
The CCITT defined the Basic Encoding Rules (BER) and Distinguished
Encoding Rules (DER) message transfer syntaxes in [CCITT.X690.2002].
The suffix "+ber" may be used with any media type whose
representation follows the BER message transfer syntax. The suffix
"+der" may be used with any media type whose representation follows
the DER message transfer syntax. The Message Type Structured Syntax
Suffix registration forms follows:
Name Basic Encoding Rules (BER) message transfer
syntax
+suffix +ber
References [CCITT.X690.2002]
Encoding considerations BER is a binary encoding.
Interoperability considerations n/a
Security considerations There are no security considerations inherent
in BER. Each individual media type registered
with a +ber suffix may have additional security
considerations.
Contact Apps Area Working Group (apps-discuss@ietf.org)
Author/Change controller The Apps Area Working Group has change
control over this registration.
Name Distinguished Encoding Rules (DER) message
transfer syntax
+suffix +der
References [CCITT.X690.2002]
Encoding considerations DER is a binary encoding.
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Interoperability considerations n/a
Security considerations There are no security considerations inherent
in DER. Each individual media type registered
with a +der suffix may have additional security
considerations.
Contact Apps Area Working Group (apps-discuss@ietf.org)
Author/Change controller The Apps Area Working Group has change
control over this registration.
5. The +fastinfoset Structured Syntax Suffix
The ITU-T and ISO have defined the Fast Infoset document format as a
binary representation of the XML Information Set in [ITU.X891.2005]
and [ISO.IEC.24824-1.2007]. These documents further define the
"application/fastinfoset" media type. The suffix "+fastinfoset" may
be used with any media type whose representation follows that
established for "application/fastinfoset". The Message Type
Structured Syntax Suffix registration form follows:
Name Fast Infoset document format
+suffix +infoset
References [ITU.X891.2005] and [ISO.IEC.24824-1.2007]
Encoding considerations Fast Infoset is a binary encoding. The
binary, quoted-printable and base64 content-
transfer-encodings are suitable for use with Fast
Infoset.
Interoperability considerations n/a
Security considerations There are no security considerations inherent
in Fast Infoset. Each individual media type
registered with a +der suffix may have additional
security considerations.
Contact Apps Area Working Group (apps-discuss@ietf.org)
Author/Change controller The Apps Area Working Group has change
control over this registration.
6. The +wbxml Structured Syntax Suffix
The WAP Forum has defined the WAP Binary XML (WBXML) document format
as a binary representation of XML in [WBXML]. This document further
defines the "application/vnd.wap.wbxml" media type. The suffix
"+wbxml" may be used with any media type whose representation follows
that established for "application/vnd.wap.wbxml". The Message Type
Structured Syntax Suffix registration form follows:
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Name WAP Binary XML (WBXML) document format
+suffix +wbxml
References [WBXML]
Encoding considerations WBXML is a binary encoding.
Interoperability considerations n/a
Security considerations There are no security considerations inherent
in WBXML. Each individual media type registered
with a +der suffix may have additional security
considerations.
Contact Apps Area Working Group (apps-discuss@ietf.org)
Author/Change controller The Apps Area Working Group has change
control over this registration.
7. IANA Considerations
See the Message Type Structured Syntax Suffix registration forms in
Section 3 - Section 6.
8. Security Considerations
See the Security considerations sections found in the Message Type
Structured Syntax Suffix registration forms from Section 3 - Section
6.
9. References
9.1. Normative References
[RFC4627] Crockford, D., "The application/json Media Type for
JavaScript Object Notation (JSON)", RFC 4627, July 2006.
[CCITT.X690.2002]
International International Telephone and Telegraph
Consultative Committee, "AASN.1 encoding rules:
Specification of basic encoding Rules (BER), Canonical
encoding rules (CER) and Distinguished encoding rules
(DER)", CCITT Recommendation X.680, July 2002.
[ITU.X891.2005]
International Telecommunications Union, "Information
Technology - Generic applications of ASN.1: Fast infoset",
ITU-T Recommendation X.891, May 2005.
[ISO.IEC.24824-1.2007]
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International Organization for Standardization,
"Information Technology - Generic applications of ASN.1:
Fast infoset", ISO Standard 24824-1, May 2007.
[WBXML] Open Mobile Alliance, "Binary XML Content Format
Specification", OMA Wireless Access Protocol
WAP-192-WBXML-20010725-a, July 2001.
9.2. Informative References
[RFC3023] Murata, M., St. Laurent, S. and D. Kohn, "XML Media
Types", RFC 3023, January 2001.
[I-D.ietf-appsawg-media-type-regs]
Freed, N., Klensin, J. and T. Hansen, "Media Type
Specifications and Registration Procedures", Internet-
Draft draft-ietf-appsawg-media-type-regs-04, April 2012.
Author's Address
Tony Hansen
AT&T Laboratories
200 Laurel Ave. South
Middletown, NJ 07748
USA
Email: tony+sss@maillennium.att.com
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