RFC 9519 IANA SSH Registry Requirements January 2024
Yee Standards Track [Page]
Stream:
Internet Engineering Task Force (IETF)
RFC:
9519
Updates:
4250, 4716, 4819, 8308
Category:
Standards Track
Published:
ISSN:
2070-1721
Author:
P. Yee
AKAYLA

RFC 9519

Update to the IANA SSH Protocol Parameters Registry Requirements

Abstract

This specification updates the registration policies for adding new entries to registries within the IANA "Secure Shell (SSH) Protocol Parameters" group of registries. Previously, the registration policy was generally IETF Review, as defined in RFC 8126, although a few registries require Standards Action. This specification changes it from IETF Review to Expert Review. This document updates RFCs 4250, 4716, 4819, and 8308.

Status of This Memo

This is an Internet Standards Track document.

This document is a product of the Internet Engineering Task Force (IETF). It represents the consensus of the IETF community. It has received public review and has been approved for publication by the Internet Engineering Steering Group (IESG). Further information on Internet Standards is available in Section 2 of RFC 7841.

Information about the current status of this document, any errata, and how to provide feedback on it may be obtained at https://www.rfc-editor.org/info/rfc9519.

Table of Contents

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 that are marked for Private Use, the registration policy for other portions of the registry was IETF Review [RFC8126]. This specification changes the policy from IETF Review to Expert Review. This change is in line with similar changes undertaken for certain IPsec and TLS registries.

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 "Secure Shell (SSH) Protocol Parameters" registries whose registration policy has changed from IETF Review to Expert Review. Where this change applied to a specific range of values within the particular parameter, that range is given in the notes column. Affected registries now list this document as a reference.

Table 1: Secure Shell (SSH) Protocol Parameters Affected
Parameter Name RFC Notes
Authentication Method Names [RFC4250]
Channel Connection Failure Reason Codes and Descriptions [RFC4250] 0x00000001-0xFDFFFFFF (inclusive)
Compression Algorithm Names [RFC4250]
Connection Protocol Channel Request Names [RFC4250]
Connection Protocol Channel Types [RFC4250]
Connection Protocol Global Request Names [RFC4250]
Connection Protocol Subsystem Names [RFC4250]
Disconnection Messages Reason Codes and Descriptions [RFC4250] 0x00000001-0xFDFFFFFF (inclusive)
Encryption Algorithm Names [RFC4250]
Extended Channel Data Transfer data_type_code and Data [RFC4250] 0x00000001-0xFDFFFFFF (inclusive)
Extension Names [RFC8308]
Key Exchange Method Names [RFC4250]
MAC Algorithm Names [RFC4250]
Pseudo-Terminal Encoded Terminal Modes [RFC4250]
Public Key Algorithm Names [RFC4250]
Publickey Subsystem Attributes [RFC4819]
Publickey Subsystem Request Names [RFC4819]
Publickey Subsystem Response Names [RFC4819]
Service Names [