Folks,

There has recently been discussion about the need to have the -base
specification include instructions for IANA, concerning the creation and
operation of a number of registries, to cover some of the extensible lists
defined in the spec.

Attached is some basic, skeleton text intended to move towards that necessary 
text.

(It is in the format of a separate document, but it is intended to get
incorporated into the base.)

d/
-- 

  Dave Crocker
  Brandenburg InternetWorking
  bbiw.net

IANA Registration Procedures for DKIM Attributes
draft-crocker-dkim-ianareg-00

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Copyright Notice

Abstract

The DKIM specification provides for a number of extensible list. This document is intended to provide basic text, to be added to the dkim -base document, to specify the IANA instructions for establishing an operating registries, to be associated with those list.

1. Introduction
2. IANA Considerations
- 2.1 DKIM Tag-List Registry
- 2.2 DKIM Query Method Registry
- 2.3 DKIM Hash Algorithms Registry
- 2.4 DKIM Key Type Registry
3. References -- Informative
Author's Address
Intellectual Property and Copyright Statements

Figure 1: DKIM Query Method Registry Initial Values
Figure 2: DKIM Hash Algorithms Initial Values
Figure 3: DKIM Key Type Initial Values

1. Introduction

2. IANA Considerations

2.1 DKIM Tag-List Registry

The list of <tag-spec> is extensible. Should we specify an IANA registry for it?

2.2 DKIM Query Method Registry

The "q=" tag-spec, as specified in section 3.5 of the DKIM base document provides for a list of query methods.

IANA is requested to establish the DKIM Query Method Registry, for mechanisms that can be used to retrieve the key that will permit validation processing of a message signed using DKIM and have been specified in any published RFC.

The initial entry in the registry comprises:

                        TYPE     OPTION    RFC
                        ====     ======    ========
                        dns      txt       draft-ietf-dkim-base-03.txt

Figure 1: DKIM Query Method Registry Initial Values

2.3 DKIM Hash Algorithms Registry

The "h=" <key-h-tag> list, specified in section 3.6.1 of the DKIM base document provides for a list of mechanisms that can be used to produce a digest of message data.

IANA is requested to establish the DKIM Hash Algorithms Registry, for such mechanisms that have been specified in any published RFC.

The initial entries in the registry comprise:

                        TYPE     RFC
                        ====     ========
                        sha1     ???
                        sha256   ???

Figure 2: DKIM Hash Algorithms Initial Values

2.4 DKIM Key Type Registry

The "k=" tag-spec, as specified in section 3.6.1 of the DKIM base document provides for a list of mechanisms that can be used to decode a DKIM signature.

IANA is requested to establish the DKIM Key Type Registry, for such mechanisms that have been specified in any published RFC.

The initial entries in the registry comprise:

                        TYPE     RFC
                        ====     ========
                        rsa      RFC3447

Figure 3: DKIM Key Type Initial Values

3. References -- Informative

Author's Address

Dave CrockerBrandenburg InternetWorking675 Spruce Dr.Sunnyvale, CA 94086USAPhone: +1.408.246.8253EMail: dcrocker(_at_)bbiw(_dot_)netURI: http://bbiw.net/

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[ietf-dkim] draft text for specify IANA instructions