Update to the IANA SSH Protocol Paremeters Registry Requirements
draft-yee-ssh-iana-requirements-00

Internet Engineering Task Force                                   P. Yee
Internet-Draft                                                    AKAYLA
Updates: 4250, 4716, 4819, 8308 (if approved)            10 January 2022
Intended status: Standards Track                                        
Expires: 14 July 2022

    Update to the IANA SSH Protocol Paremeters Registry Requirements
                   draft-yee-ssh-iana-requirements-00

Abstract

   This specification updates the requirements for adding new entries to
   the IANA Secure Shell (SSH) Protocol Parameters registry.  Currently,
   the requirement is generally for "IETF Review", as defined in RFC
   8126, although a few portions of the registry require "Standards
   Action".  This specification will change that former requirement to
   "Expert Review".

Status of This Memo

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   provisions of BCP 78 and BCP 79.

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   This Internet-Draft will expire on 14 July 2022.

Copyright Notice

   Copyright (c) 2022 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

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   Please review these documents carefully, as they describe your rights
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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
     1.1.  Requirements Language . . . . . . . . . . . . . . . . . .   2
   2.  SSH Protocol Parameters Affected  . . . . . . . . . . . . . .   2
   3.  Designated Expert Pool  . . . . . . . . . . . . . . . . . . .   4
   4.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .   5
   5.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   5
   6.  Security Considerations . . . . . . . . . . . . . . . . . . .   5
   7.  References  . . . . . . . . . . . . . . . . . . . . . . . . .   5
     7.1.  Normative References  . . . . . . . . . . . . . . . . . .   5
   Author's Address  . . . . . . . . . . . . . . . . . . . . . . . .   6

1.  Introduction

   The IANA Secure Shell (SSH) Protocol Parameters registry was
   populated by several RFCs including [RFC4250], [RFC4716], [RFC4819],
   and [RFC8308].  Outside of some narrow value ranges that require
   Standards Action in order to add new values or are marked for private
   use, all other portions of the registry require IETF Review
   [RFC8126].  This specification changes the requirement for sections
   currently requiring IETF Review to Expert Review.

1.1.  Requirements Language

   The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
   "SHOULD", "SHOULD NOT", "RECOMMENDED", "NOT RECOMMENDED", "MAY", and
   "OPTIONAL" in this document are to be interpreted as described in
   BCP 14 [RFC2119] [RFC8174] when, and only when, they appear in all
   capitals, as shown here.

2.  SSH Protocol Parameters Affected

   The following table lists the SSH protocol parameters that changed
   from IETF Review to Expert Review.  Where this change applies to a
   specific range of values within the particular parameter, that range
   is given in the notes column.

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   +===============================+===========+=======================+
   |         Parameter Name        |    RFC    |         Notes         |
   +===============================+===========+=======================+
   |     Authentication Method     | [RFC4250] |                       |
   |             Names             |           |                       |
   +-------------------------------+-----------+-----------------------+
   |       Channel Connection      | [RFC4250] | 0x00000001-0xFDFFFFFF |
   |      Failure Reason Codes     |           |      (inclusive)      |
   |        and Descriptions       |           |                       |
   +-------------------------------+-----------+-----------------------+
   |     Compression Algorithm     | [RFC4250] |                       |
   |             Names             |           |                       |
   +-------------------------------+-----------+-----------------------+
   |      Connection Protocol      | [RFC4250] |                       |
   |     Channel Request Names     |           |                       |
   +-------------------------------+-----------+-----------------------+
   |      Connection Protocol      | [RFC4250] |                       |
   |         Channel Types         |           |                       |
   +-------------------------------+-----------+-----------------------+
   |      Connection Protocol      | [RFC4250] |                       |
   |      Global Request Names     |           |                       |
   +-------------------------------+-----------+-----------------------+
   |      Connection Protocol      | [RFC4250] |                       |
   |        Subsystem Names        |           |                       |
   +-------------------------------+-----------+-----------------------+
   |     Disconnection Messages    | [RFC4250] |                       |
   |        Reason Codes and       |           |                       |
   |          Descriptions         |           |                       |
   +-------------------------------+-----------+-----------------------+
   |      Encryption Algorithm     | [RFC4250] |                       |
   |             Names             |           |                       |
   +-------------------------------+-----------+-----------------------+
   |     Extended Channel Data     | [RFC4250] | 0x00000001-0xFDFFFFFF |
   |    Transfer data_type_code    |           |      (inclusive)      |
   |            and Data           |           |                       |
   +-------------------------------+-----------+-----------------------+
   |        Extension Names        | [RFC8308] |                       |
   +-------------------------------+-----------+-----------------------+
   |      Key Exchange Method      | [RFC4250] |                       |
   |             Names             |           |                       |
   +-------------------------------+-----------+-----------------------+
   |      MAC Algorithm Names      | [RFC4250] |                       |
   +-------------------------------+-----------+-----------------------+
   |    Pseudo-Terminal Encoded    | [RFC4250] |                       |
   |         Terminal Modes        |           |                       |
   +-------------------------------+-----------+-----------------------+
   |      Public Key Algorithm     | [RFC4250] |                       |
   |             Names             |           |                       |

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   +-------------------------------+-----------+-----------------------+
   |      Publickey Subsystem      | [RFC4819] |                       |
   |           Attributes          |           |                       |
   +-------------------------------+-----------+-----------------------+
   |      Publickey Subsystem      | [RFC4819] |                       |
   |         Request Names         |           |                       |
   +-------------------------------+-----------+-----------------------+
   |      Publickey Subsystem      | [RFC4819] |                       |
   |         Response Names        |           |                       |
   +-------------------------------+-----------+-----------------------+
   |         Service Names         | [RFC4250] |                       |
   +-------------------------------+-----------+-----------------------+
   |          Signal Names         | [RFC4250] |                       |
   +-------------------------------+-----------+-----------------------+
   |      SSH Public-Key File      | [RFC4716] |                       |
   |          Header Tags          |           |                       |
   +-------------------------------+-----------+-----------------------+

          Table 1: Secure Shell (SSH) Protocol Parameters Affected

3.  Designated Expert Pool

   Expert Review [RFC8126] registry requests are registered after a
   three-week review period on the <ssh-reg-review@ietf.org> mailing
   list, on the advice of one or more designated experts.  However, to
   allow for the allocation of values prior to publication, the
   designated experts may approve registration once they are satisfied
   that such a specification will be published.

   Registration requests sent to the mailing list for review SHOULD use
   an appropriate subject (e.g., "Request to register value in SSH
   protocol parameters <specific parameter> registry").

   Within the review period, the designated experts will either approve
   or deny the registration request, communicating this decision to the
   review list and IANA.  Denials SHOULD include an explanation and, if
   applicable, suggestions as to how to make the request successful.
   Registration requests that are undetermined for a period longer than
   21 days can be brought to the IESG's attention (using the
   <iesg@ietf.org> mailing list) for resolution.

   Criteria that SHOULD be applied by the designated experts includes
   determining whether the proposed registration duplicates existing
   functionality, whether it is likely to be of general applicability or
   useful only for a single application, and whether the registration
   description is clear.

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   IANA MUST only accept registry updates from the designated experts
   and SHOULD direct all requests for registration to the review mailing
   list.

   It is suggested that multiple designated experts be appointed who are
   able to represent the perspectives of different applications using
   this specification, in order to enable broadly informed review of
   registration decisions.  In cases where a registration decision could
   be perceived as creating a conflict of interest for a particular
   Expert, that Expert SHOULD defer to the judgment of the other
   Experts.

4.  Acknowledgements

   The impetus for this specification was a February 2021 discussion on
   the CURDLE mailing list.

5.  IANA Considerations

   This memo is wholly about updating the IANA SSH Protocol Parameters
   registry.

6.  Security Considerations

   This memo does not change the Security Considerations for any of the
   updated RFCs.

7.  References

7.1.  Normative References

   [RFC2119]  Bradner, S., "Key words for use in RFCs to Indicate
              Requirement Levels", BCP 14, RFC 2119,
              DOI 10.17487/RFC2119, March 1997,
              <https://www.rfc-editor.org/info/rfc2119>.

   [RFC4250]  Lehtinen, S. and C. Lonvick, Ed., "The Secure Shell (SSH)
              Protocol Assigned Numbers", RFC 4250,
              DOI 10.17487/RFC4250, January 2006,
              <https://www.rfc-editor.org/info/rfc4250>.

   [RFC4716]  Galbraith, J. and R. Thayer, "The Secure Shell (SSH)
              Public Key File Format", RFC 4716, DOI 10.17487/RFC4716,
              November 2006, <https://www.rfc-editor.org/info/rfc4716>.

   [RFC4819]  Galbraith, J., Van Dyke, J., and J. Bright, "Secure Shell
              Public Key Subsystem", RFC 4819, DOI 10.17487/RFC4819,
              March 2007, <https://www.rfc-editor.org/info/rfc4819>.

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   [RFC8126]  Cotton, M., Leiba, B., and T. Narten, "Guidelines for
              Writing an IANA Considerations Section in RFCs", BCP 26,
              RFC 8126, DOI 10.17487/RFC8126, June 2017,
              <https://www.rfc-editor.org/info/rfc8126>.

   [RFC8174]  Leiba, B., "Ambiguity of Uppercase vs Lowercase in RFC
              2119 Key Words", BCP 14, RFC 8174, DOI 10.17487/RFC8174,
              May 2017, <https://www.rfc-editor.org/info/rfc8174>.

   [RFC8308]  Bider, D., "Extension Negotiation in the Secure Shell
              (SSH) Protocol", RFC 8308, DOI 10.17487/RFC8308, March
              2018, <https://www.rfc-editor.org/info/rfc8308>.

Author's Address

   Peter E. Yee
   AKAYLA
   Mountain View, Calif. 94043
   United States of America

   Email: peter@akayla.com

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