< draft-hansen-media-type-suffix-regs-00.txt   draft-hansen-media-type-suffix-regs-01.txt >
Network Working Group T. Hansen Network Working Group T. Hansen
Internet-Draft AT&T Laboratories Internet-Draft AT&T Laboratories
Intended status: Standards Track April 05, 2012 Intended status: Standards Track April 06, 2012
Expires: October 05, 2012 Expires: October 06, 2012
Additional Media Type Structured Syntax Suffixes Additional Media Type Structured Syntax Suffixes
draft-hansen-media-type-suffix-regs-00 draft-hansen-media-type-suffix-regs-01
Abstract Abstract
This document defines several Structured Syntax Suffixes for use with This document defines several Structured Syntax Suffixes for use with
media type registrations. In particular, it defines and registers media type registrations. In particular, it defines and registers
the "+json", "+der", "+fastinfoset" and "+wbxml" Structured Syntax the "+json", "+ber", "+der", "+fastinfoset" and "+wbxml" Structured
Suffixes. Syntax Suffixes.
Status of this Memo Status of this Memo
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provisions of BCP 78 and BCP 79. provisions of BCP 78 and BCP 79.
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This Internet-Draft will expire on October 05, 2012. This Internet-Draft will expire on October 06, 2012.
Copyright Notice Copyright Notice
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Table of Contents Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 2 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 2
2. When to Use these Structured Syntax Suffixes . . . . . . . . . 2 2. When to Use these Structured Syntax Suffixes . . . . . . . . . 2
3. The +json Structured Syntax Suffix . . . . . . . . . . . . . . 2 3. The +json Structured Syntax Suffix . . . . . . . . . . . . . . 2
4. The +der Structured Syntax Suffix . . . . . . . . . . . . . . 3 4. The +ber and +der Structured Syntax Suffixes . . . . . . . . . 3
5. The +fastinfoset Structured Syntax Suffix . . . . . . . . . . 3 5. The +fastinfoset Structured Syntax Suffix . . . . . . . . . . 4
6. The +wbxml Structured Syntax Suffix . . . . . . . . . . . . . 3 6. The +wbxml Structured Syntax Suffix . . . . . . . . . . . . . 4
7. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 4 7. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 5
8. Security Considerations . . . . . . . . . . . . . . . . . . . 4 8. Security Considerations . . . . . . . . . . . . . . . . . . . 5
9. References . . . . . . . . . . . . . . . . . . . . . . . . . . 4 9. References . . . . . . . . . . . . . . . . . . . . . . . . . . 5
9.1. Normative References . . . . . . . . . . . . . . . . . . . 4 9.1. Normative References . . . . . . . . . . . . . . . . . . . 5
9.2. Informative References . . . . . . . . . . . . . . . . . . 5 9.2. Informative References . . . . . . . . . . . . . . . . . . 6
Author's Address . . . . . . . . . . . . . . . . . . . . . . . . . 5 Author's Address . . . . . . . . . . . . . . . . . . . . . . . . . 6
1. Introduction 1. Introduction
[RFC3023] created the +xml suffix convention that may be used by [RFC3023] created the +xml suffix convention that may be used by
media types whose representation uses XML underneath, that is, they media types whose representation uses XML underneath, that is, they
could have been successfully parsed as if the media type had been could have been successfully parsed as if the media type had been
application/xml in addition to their being parsed as their media type 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] that is using the +xml suffix. [I-D.ietf-appsawg-media-type-regs]
defines a registry to be used for future Structured Syntax Suffixes. defines a registry to be used for future Structured Syntax Suffixes.
A variety of Structured Syntax Suffixes have already been used in A variety of Structured Syntax Suffixes have already been used in
some Media Type registration, in particular "+json", "+der", some Media Type registration, in particular "+json", "+der",
"+fastinfoset" and "+wbxml". This document defines and registers "+fastinfoset" and "+wbxml". This document defines and registers
these four Structured Syntax Suffixes in the Structured Syntax Suffix these Structured Syntax Suffixes in the Structured Syntax Suffix
registry. registry, along with "+ber".
Discussion of this document should occur in the Apps Area Working Discussion of this document should occur in the Apps Area Working
Group (apps-discuss@ietf.org). Group (apps-discuss@ietf.org).
2. When to Use these Structured Syntax Suffixes 2. When to Use these Structured Syntax Suffixes
Each of the Structured Syntax Suffixes defined in this document are Each of the Structured Syntax Suffixes defined in this document are
appropriate for use when the media type identifies the semantics of appropriate for use when the media type identifies the semantics of
the protocol payload. That is, knowing the semantics of the specific the protocol payload. That is, knowing the semantics of the specific
media type provides for more specific processing of the content than media type provides for more specific processing of the content than
skipping to change at page 2, line 48 skipping to change at page 2, line 48
At the same time, using the suffix provides receivers of the media At the same time, using the suffix provides receivers of the media
types to do generic processing of the underyling representation in types to do generic processing of the underyling representation in
cases where they do not need to handle specially the specific cases where they do not need to handle specially the specific
semantics of the exact media type. semantics of the exact media type.
3. The +json Structured Syntax Suffix 3. The +json Structured Syntax Suffix
[RFC4627] defines the "application/json" media type. The suffix [RFC4627] defines the "application/json" media type. The suffix
"+json" may be used with any media type whose representation follows "+json" may be used with any media type whose representation follows
that established for "application/json". The Structured Syntax that established for "application/json". The Message Type Structured
Suffix registration form follows: Syntax Suffix registration form follows:
Name JavaScript Object Notation (JSON) Name JavaScript Object Notation (JSON)
+suffix +json +suffix +json
References [RFC4627] References [RFC4627]
Encoding considerations Per [RFC4627], JSON may be represented using Encoding considerations Per [RFC4627], JSON may be represented using
UTF-8, UTF-16, or UTF-32. When JSON is written UTF-8, UTF-16, or UTF-32. When JSON is written
in UTF-8, JSON is 8bit compatible. When JSON is in UTF-8, JSON is 8bit compatible. When JSON is
written in UTF-16 or UTF-32, JSON is binary. written in UTF-16 or UTF-32, JSON is binary.
Interoperability considerations n/a Interoperability considerations n/a
Security considerations See [RFC4627] Security considerations See [RFC4627]
Contact Apps Area Working Group (apps-discuss@ietf.org) Contact Apps Area Working Group (apps-discuss@ietf.org)
Author/Change controller The Apps Area Working Group has change Author/Change controller The Apps Area Working Group has change
control over this registration. control over this registration.
4. The +der Structured Syntax Suffix 4. The +ber and +der Structured Syntax Suffixes
The CCITT defined the Distinguished Encoding Rules (DER) message The CCITT defined the Basic Encoding Rules (BER) and Distinguished
transfer syntax in [CCITT.X690.2002]. The suffix "+der" may be used Encoding Rules (DER) message transfer syntaxes in [CCITT.X690.2002].
with any media type whose representation follows the DER message The suffix "+ber" may be used with any media type whose
transfer syntax. The Structured Syntax Suffix registration form representation follows the BER message transfer syntax. The suffix
follows: "+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 Name Distinguished Encoding Rules (DER) message
transfer syntax transfer syntax
+suffix +der +suffix +der
References [CCITT.X690.2002] References [CCITT.X690.2002]
Encoding considerations DER is a binary encoding. Encoding considerations DER is a binary encoding.
Interoperability considerations n/a Interoperability considerations n/a
Security considerations There are no security considerations inherent Security considerations There are no security considerations inherent
in DER. Each individual media type registered in DER. Each individual media type registered
with a +der suffix may have additional security with a +der suffix may have additional security
considerations. considerations.
Contact Apps Area Working Group (apps-discuss@ietf.org) Contact Apps Area Working Group (apps-discuss@ietf.org)
Author/Change controller The Apps Area Working Group has change Author/Change controller The Apps Area Working Group has change
control over this registration. control over this registration.
5. The +fastinfoset Structured Syntax Suffix 5. The +fastinfoset Structured Syntax Suffix
The ITU-T and ISO have defined the Fast Infoset document format as a 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] binary representation of the XML Information Set in [ITU.X891.2005]
and [ISO.IEC.24824-1.2007]. These documents further define the and [ISO.IEC.24824-1.2007]. These documents further define the
"application/fastinfoset" media type. The suffix "+fastinfoset" may "application/fastinfoset" media type. The suffix "+fastinfoset" may
be used with any media type whose representation follows that be used with any media type whose representation follows that
established for "application/fastinfoset". The Structured Syntax established for "application/fastinfoset". The Message Type
Suffix registration form follows: Structured Syntax Suffix registration form follows:
Name Fast Infoset document format Name Fast Infoset document format
+suffix +infoset +suffix +infoset
References [ITU.X891.2005] and [ISO.IEC.24824-1.2007] References [ITU.X891.2005] and [ISO.IEC.24824-1.2007]
Encoding considerations Fast Infoset is a binary encoding. The Encoding considerations Fast Infoset is a binary encoding. The
binary, quoted-printable and base64 content- binary, quoted-printable and base64 content-
transfer-encodings are suitable for use with Fast transfer-encodings are suitable for use with Fast
Infoset. Infoset.
Interoperability considerations n/a Interoperability considerations n/a
Security considerations There are no security considerations inherent Security considerations There are no security considerations inherent
in Fast Infoset. Each individual media type in Fast Infoset. Each individual media type
registered with a +der suffix may have additional registered with a +der suffix may have additional
security considerations. security considerations.
Contact Apps Area Working Group (apps-discuss@ietf.org) Contact Apps Area Working Group (apps-discuss@ietf.org)
Author/Change controller The Apps Area Working Group has change Author/Change controller The Apps Area Working Group has change
control over this registration. control over this registration.
6. The +wbxml Structured Syntax Suffix 6. The +wbxml Structured Syntax Suffix
The WAP Forum has defined the WAP Binary XML (WBXML) document format The WAP Forum has defined the WAP Binary XML (WBXML) document format
as a binary representation of XML in [WBXML]. This document further as a binary representation of XML in [WBXML]. This document further
defines the "application/vnd.wap.wbxml" media type. The suffix defines the "application/vnd.wap.wbxml" media type. The suffix
"+wbxml" may be used with any media type whose representation follows "+wbxml" may be used with any media type whose representation follows
that established for "application/vnd.wap.wbxml". The Structured that established for "application/vnd.wap.wbxml". The Message Type
Syntax Suffix registration form follows: Structured Syntax Suffix registration form follows:
Name WAP Binary XML (WBXML) document format Name WAP Binary XML (WBXML) document format
+suffix +wbxml +suffix +wbxml
References [WBXML] References [WBXML]
Encoding considerations WBXML is a binary encoding. Encoding considerations WBXML is a binary encoding.
Interoperability considerations n/a Interoperability considerations n/a
Security considerations There are no security considerations inherent Security considerations There are no security considerations inherent
in WBXML. Each individual media type registered in WBXML. Each individual media type registered
with a +der suffix may have additional security with a +der suffix may have additional security
considerations. considerations.
Contact Apps Area Working Group (apps-discuss@ietf.org) Contact Apps Area Working Group (apps-discuss@ietf.org)
Author/Change controller The Apps Area Working Group has change Author/Change controller The Apps Area Working Group has change
control over this registration. control over this registration.
7. IANA Considerations 7. IANA Considerations
See the Structured Syntax Suffix registration forms in sections 2-5. See the Message Type Structured Syntax Suffix registration forms in
Section 3 - Section 6.
8. Security Considerations 8. Security Considerations
See the Security considerations sections found in the Structured See the Security considerations sections found in the Message Type
Syntax Suffix registration forms from sections 2-5. Structured Syntax Suffix registration forms from Section 3 - Section
6.
9. References 9. References
9.1. Normative References 9.1. Normative References
[1] Crockford, D., "The application/json Media Type for [RFC4627] Crockford, D., "The application/json Media Type for
JavaScript Object Notation (JSON)", RFC 4627, July 2006. JavaScript Object Notation (JSON)", RFC 4627, July 2006.
[2] International International Telephone and Telegraph [CCITT.X690.2002]
International International Telephone and Telegraph
Consultative Committee, "AASN.1 encoding rules: Consultative Committee, "AASN.1 encoding rules:
Specification of basic encoding Rules (BER), Canonical Specification of basic encoding Rules (BER), Canonical
encoding rules (CER) and Distinguished encoding rules encoding rules (CER) and Distinguished encoding rules
(DER)", CCITT Recommendation X.680, July 2002. (DER)", CCITT Recommendation X.680, July 2002.
[3] International Telecommunications Union, "Information [ITU.X891.2005]
International Telecommunications Union, "Information
Technology - Generic applications of ASN.1: Fast infoset", Technology - Generic applications of ASN.1: Fast infoset",
ITU-T Recommendation X.891, May 2005. ITU-T Recommendation X.891, May 2005.
[4] International Organization for Standardization, [ISO.IEC.24824-1.2007]
International Organization for Standardization,
"Information Technology - Generic applications of ASN.1: "Information Technology - Generic applications of ASN.1:
Fast infoset", ISO Standard 24824-1, May 2007. Fast infoset", ISO Standard 24824-1, May 2007.
[5] Open Mobile Alliance, "Binary XML Content Format [WBXML] Open Mobile Alliance, "Binary XML Content Format
Specification", OMA Wireless Access Protocol Specification", OMA Wireless Access Protocol
WAP-192-WBXML-20010725-a, July 2001. WAP-192-WBXML-20010725-a, July 2001.
9.2. Informative References 9.2. Informative References
[1] Murata, M., St. Laurent, S. and D. Kohn, "XML Media [RFC3023] Murata, M., St. Laurent, S. and D. Kohn, "XML Media
Types", RFC 3023, January 2001. Types", RFC 3023, January 2001.
[2] Freed, N., Klensin, J. and T. Hansen, "Media Type [I-D.ietf-appsawg-media-type-regs]
Freed, N., Klensin, J. and T. Hansen, "Media Type
Specifications and Registration Procedures", Internet- Specifications and Registration Procedures", Internet-
Draft draft-ietf-appsawg-media-type-regs-04, April 2012. Draft draft-ietf-appsawg-media-type-regs-04, April 2012.
Author's Address Author's Address
Tony Hansen Tony Hansen
AT&T Laboratories AT&T Laboratories
200 Laurel Ave. South 200 Laurel Ave. South
Middletown, NJ 07748 Middletown, NJ 07748
USA USA
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