Network News Transfer Protocol (NNTP) Extension for Compression
RFC 8054
| Document | Type |
RFC - Proposed Standard
(January 2017; No errata)
Was draft-murchison-nntp-compress (individual)
|
|
|---|---|---|---|
| Last updated | 2017-01-25 | ||
| Stream | IETF | ||
| Formats | plain text pdf htmlized bibtex | ||
| Reviews | |||
| Stream | WG state | (None) | |
| Document shepherd | No shepherd assigned | ||
| Shepherd write-up | Show (last changed 2016-10-29) | ||
| IESG | IESG state | RFC 8054 (Proposed Standard) | |
| Consensus Boilerplate | Yes | ||
| Telechat date | |||
| Responsible AD | Alexey Melnikov | ||
| Send notices to | (None) | ||
| IANA | IANA review state | IANA OK - Actions Needed | |
| IANA action state | RFC-Ed-Ack | ||
Internet Engineering Task Force (IETF) K. Murchison
Request for Comments: 8054 Carnegie Mellon University
Category: Standards Track J. Elie
ISSN: 2070-1721 January 2017
Network News Transfer Protocol (NNTP)
Extension for Compression
Abstract
This document defines an extension to the Network News Transport
Protocol (NNTP) that allows a connection to be effectively and
efficiently compressed between an NNTP client and server.
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
http://www.rfc-editor.org/info/rfc8054.
Copyright Notice
Copyright (c) 2017 IETF Trust and the persons identified as the
document authors. All rights reserved.
This document is subject to BCP 78 and the IETF Trust's Legal
Provisions Relating to IETF Documents
(http://trustee.ietf.org/license-info) in effect on the date of
publication of this document. Please review these documents
carefully, as they describe your rights and restrictions with respect
to this document. Code Components extracted from this document must
include Simplified BSD License text as described in Section 4.e of
the Trust Legal Provisions and are provided without warranty as
described in the Simplified BSD License.
Murchison & Elie Standards Track [Page 1]
RFC 8054 NNTP Extension for Compression January 2017
Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1. About TLS-Level Compression . . . . . . . . . . . . . . . 3
1.2. Conventions Used in This Document . . . . . . . . . . . . 4
2. The COMPRESS Extension . . . . . . . . . . . . . . . . . . . 4
2.1. Advertising the COMPRESS Extension . . . . . . . . . . . 4
2.2. COMPRESS Command . . . . . . . . . . . . . . . . . . . . 5
2.2.1. Usage . . . . . . . . . . . . . . . . . . . . . . . . 5
2.2.2. Description . . . . . . . . . . . . . . . . . . . . . 6
2.2.3. Examples . . . . . . . . . . . . . . . . . . . . . . 8
3. Compression Efficiency . . . . . . . . . . . . . . . . . . . 11
4. DEFLATE Specificities . . . . . . . . . . . . . . . . . . . . 12
5. Augmented BNF Syntax for the COMPRESS Extension . . . . . . . 13
5.1. Commands . . . . . . . . . . . . . . . . . . . . . . . . 13
5.2. Capability Entries . . . . . . . . . . . . . . . . . . . 13
5.3. General Non-terminals . . . . . . . . . . . . . . . . . . 13
6. Summary of Response Codes . . . . . . . . . . . . . . . . . . 13
7. Security Considerations . . . . . . . . . . . . . . . . . . . 14
8. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 15
8.1. "NNTP Compression Algorithms" Registry . . . . . . . . . 15
8.1.1. Algorithm Name Registration Procedure . . . . . . . . 16
8.1.2. Comments on Algorithm Registrations . . . . . . . . . 17
8.1.3. Change Control . . . . . . . . . . . . . . . . . . . 17
8.2. Registration of the DEFLATE Compression Algorithm . . . . 18
8.3. Registration of the NNTP COMPRESS Extension . . . . . . . 18
9. References . . . . . . . . . . . . . . . . . . . . . . . . . 20
9.1. Normative References . . . . . . . . . . . . . . . . . . 20
9.2. Informative References . . . . . . . . . . . . . . . . . 20
Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . . . 22
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 23
Murchison & Elie Standards Track [Page 2]
RFC 8054 NNTP Extension for Compression January 2017
1. Introduction
The goal of COMPRESS is to reduce the bandwidth usage of NNTP.
Compared to PPP compression [RFC1962] and modem-based compression
([MNP] and [V42bis]), COMPRESS offers greater compression efficiency.
COMPRESS can be used together with Transport Layer Security (TLS)
[RFC5246], Simple Authentication and Security Layer (SASL) encryption
[RFC4422], Virtual Private Networks (VPNs), etc.
The point of COMPRESS as an NNTP extension is to act as a compression
layer, similar to a security layer like the one negotiated by
STARTTLS [RFC4642]. Therefore, compression can be beneficial to all
NNTP commands sent or received after the use of COMPRESS. This
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