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NETWORK WORKING GROUP                                        N. Williams
Internet-Draft                                                       Sun
Expires: July 2, 2005                                       January 2005


     Namespace Considerations and Registries for GSS-API Extensions
            draft-ietf-kitten-gssapi-extensions-iana-00.txt

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Copyright Notice

   Copyright (C) The Internet Society (2005).  All Rights Reserved.

Abstract

   This document describes the ways in which the GSS-API may be extended
   and directs the creation of IANA registries for various GSS-API
   namespaces.










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Table of Contents

   1.  Conventions used in this document  . . . . . . . . . . . . . .  3
   2.  Introduction . . . . . . . . . . . . . . . . . . . . . . . . .  3
   3.  Extensions to the GSS-API  . . . . . . . . . . . . . . . . . .  3
   4.  Generic GSS-API Namespaces . . . . . . . . . . . . . . . . . .  3
   5.  Language Binding-Specific GSS-API Namespaces . . . . . . . . .  4
   6.  Extension-Specific GSS-API Namespaces  . . . . . . . . . . . .  4
   7.  Registration Form(s) . . . . . . . . . . . . . . . . . . . . .  4
   8.  Initial Namespace Registrations  . . . . . . . . . . . . . . .  6
   9.  Security Considerations  . . . . . . . . . . . . . . . . . . .  6
   10. Normative  . . . . . . . . . . . . . . . . . . . . . . . . . .  6
       Author's Address . . . . . . . . . . . . . . . . . . . . . . .  6
       Intellectual Property and Copyright Statements . . . . . . . .  7





































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1.  Conventions used in this document

   The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
   "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
   document are to be interpreted as described in [RFC2119].

2.  Introduction

   There is a need for generic and mechanism-specific extensions to the
   Generic Security Services Application Programming Interface
   (GSS-API).  As such extensions are designed and standardized, both at
   the IETF and elsewhere, there is a non-trivial risk of namespace
   pollution and conflicts.  To avoid this we set out guidelines for
   extending the GSS-API and create IANA registries of GSS-API
   namespaces.

   The registration of name prefixes and constant value ranges is
   allowed so as to save the IANA the trouble of registering every
   GSS-API name and constant, and to allow for reservation of portions
   of some GSS namespaces for private extensions or extensions which
   lack IETF Standards-Track extensions.

3.  Extensions to the GSS-API

   Extensions to the GSS-API can be categorized as follows:
   o  Generic
   o  Implementation-specific
   o  Mechanism-specific
   o  Language binding-specific
   o  Any combination of two or all three of the last three

   Extensions to the GSS-API may be purely semantic, without effect on
   the GSS-API's namespaces.  Or they may introduce new functions,
   constants, types, etc...; these clearly affect the GSS-API
   namespaces.

   Extensions that affect the GSS-API namespaces should be registered
   with the IANA.

4.  Generic GSS-API Namespaces

   All the function, constant and type names, as well as all the
   constant values specified in the base GSS-API specification for the
   basic generic GSS-API namespace.

   The generic GSS-API namespaces are:
   o  Type names
   o  Function names



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   o  Constant names for each type
   o  Constant values for each type
   o  Mechanism OIDs
   o  Name Type OIDs
   o  Mechanism Attribute OIDs (see [EXTENDED-INQUIRY])

5.  Language Binding-Specific GSS-API Namespaces

   <Add text; discuss header, module, library, class, method namespaces
   and whatever else comes up that is language-specific and appropriate
   for registration with the IANA.>

6.  Extension-Specific GSS-API Namespaces

   Extensions to the GSS-API may create additional namespaces.
   Instructions to the IANA should included for the handling of such
   namespaces.

7.  Registration Form(s)

   Registrations for GSS-API namespaces SHALL take the following form:

   +----------------------+----------------------+---------------------+
   | Registration Field   | Possible Values      | Description         |
   +----------------------+----------------------+---------------------+
   | Registration type    | 'Individual',        | Indicates whether   |
   |                      | 'Prefix', 'Range'    | this entry reserves |
   |                      |                      | a given symbol name |
   |                      |                      | or constant value   |
   |                      |                      | or whether it       |
   |                      |                      | reserves an entire  |
   |                      |                      | sub-namespace (the  |
   |                      |                      | name is a "prefix") |
   |                      |                      | or constant value   |
   |                      |                      | range.              |
   | Bindings             | 'Generic',           | Indicates the       |
   |                      | 'C-bindings',        | language bindings   |
   |                      | 'Java', 'C#', etc... | that this           |
   |                      |                      | registration is     |
   |                      |                      | for, or, if         |
   |                      |                      | 'Generic', that     |
   |                      |                      | this is an entry    |
   |                      |                      | for the generic     |
   |                      |                      | GSS-API, not        |
   |                      |                      | specific to any     |
   |                      |                      | programming         |
   |                      |                      | language.           |
   | Object Type          | 'Symbol',            | Indicates whether   |



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   |                      | 'Constant-Value'     | this registration   |
   |                      |                      | is for a symbol     |
   |                      |                      | (e.g., function,    |
   |                      |                      | constant name(s))   |
   |                      |                      | or constant value.  |
   | Object Programming   | 'Data-Type',         | Indicates the type  |
   | Type                 | 'Function',          | of the object(s)    |
   |                      | 'Method', 'Integer', | whose symbolic name |
   |                      | 'String', 'OID'      | or constant value   |
   |                      |                      | is this entry       |
   |                      |                      | registers.          |
   | Object Name          | <Symbol name or name | The name(s) of      |
   |                      | prefix>              | symbols or values   |
   |                      |                      | being registered.   |
   | Object Value         | <Constant value> or  | [Only for           |
   |                      | <constant value      | Constant-Value      |
   |                      | range>               | registrations.] The |
   |                      |                      | value(s)            |
   |                      |                      | registered.         |
   | Description          | <Text>               | Description of      |
   |                      |                      | object(s) being     |
   |                      |                      | registered.         |
   | Reference            | <Reference>          | Reference to        |
   |                      |                      | document that       |
   |                      |                      | describes the       |
   |                      |                      | object(s) being     |
   |                      |                      | registered.         |
   | Status               | 'Standards-Track',   |                     |
   |                      | 'Informational',     |                     |
   |                      | 'Experimental',      |                     |
   |                      | 'Obsolete'           |                     |
   +----------------------+----------------------+---------------------+

   The IANA should create a single GSS-API namespace registry, or
   multiple registries, one for symbolic names and one for constant
   values, or it may create a registry per-programming language, at its
   convenience.

   Entries in these registries should consist of all the fields from
   their corresponding registration entries.

   Entries SHOULD be sorted by object type, proggamming language, symbol
   name.

   <Add text on guidelines for IANA consideration of registration
   applications, particularly with respect to entries lacking normative
   references, "magic" entries (e.g., special values of 'time' types
   which indicate something other than absolute or relative time, such



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   as GSS_C_INDEFINITE), expert review requirements (if any) for
   registrations lacking normative references, etc....>

8.  Initial Namespace Registrations

   <Add registration entries for namespaces (name prefixes) for RFC2743/
   RFC2744/RFC2853.>

   <Add registration entries for private namespaces (name prefixes) for
   implementation- and/or platform-specific extensions.>

9.  Security Considerations

   This document has no security considerations.

10  Normative

   [EXTENDED-INQUIRY]
              Williams, N., "Extended Generic Security Service Mechanism
              Inquiry APIs",
              draft-ietf-kitten-extended-mech-inquiry-00.txt (work in
              progress).

   [RFC2119]  Bradner, S., "Key words for use in RFCs to Indicate
              Requirement Levels", BCP 14, RFC 2119, March 1997.

   [RFC2743]  Linn, J., "Generic Security Service Application Program
              Interface Version 2, Update 1", RFC 2743, January 2000.

   [RFC2744]  Wray, J., "Generic Security Service API Version 2 :
              C-bindings", RFC 2744, January 2000.


Author's Address

   Nicolas Williams
   Sun Microsystems
   5300 Riata Trace Ct
   Austin, TX  78727
   US

   EMail: Nicolas.Williams@sun.com









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