Cancel-Locks in Netnews Articles
RFC 8315
| Document | Type |
RFC - Proposed Standard
(February 2018; No errata)
Updates RFC 5537
Was draft-baeuerle-netnews-cancel-lock (individual in art area)
|
|
|---|---|---|---|
| Author | Michael Bäuerle | ||
| Last updated | 2018-02-13 | ||
| Replaces | draft-ietf-usefor-cancel-lock | ||
| Stream | IETF | ||
| Formats | plain text html pdf htmlized bibtex | ||
| Reviews | |||
| Stream | WG state | (None) | |
| Document shepherd | Julien ÉLIE | ||
| Shepherd write-up | Show (last changed 2017-05-30) | ||
| IESG | IESG state | RFC 8315 (Proposed Standard) | |
| Consensus Boilerplate | Yes | ||
| Telechat date | |||
| Responsible AD | Alexey Melnikov | ||
| Send notices to | =?utf-8?q?Julien_=C3=89LIE?= <julien@trigofacile.com> | ||
| IANA | IANA review state | Version Changed - Review Needed | |
| IANA action state | RFC-Ed-Ack | ||
Internet Engineering Task Force (IETF) M. Baeuerle
Request for Comments: 8315 STZ Elektronik
Updates: 5537 February 2018
Category: Standards Track
ISSN: 2070-1721
Cancel-Locks in Netnews Articles
Abstract
This document defines an extension to the Netnews Article Format that
may be used to authenticate the withdrawal of existing articles.
This document updates RFC 5537.
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/rfc8315.
Copyright Notice
Copyright (c) 2018 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
(https://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.
Baeuerle Standards Track [Page 1]
RFC 8315 Cancel-Locks February 2018
Table of Contents
1. Introduction ....................................................2
1.1. Conventions Used in This Document ..........................3
2. Header Fields ...................................................3
2.1. Cancel-Lock ................................................4
2.2. Cancel-Key .................................................4
3. Use .............................................................5
3.1. Adding an Initial Cancel-Lock Header Field to a
Proto-Article ..............................................5
3.2. Extending the Cancel-Lock Header Field of a Proto-Article ..6
3.3. Adding a Cancel-Key Header Field to a Proto-Article ........6
3.4. Extending the Cancel-Key Header Field of a Proto-Article ...7
3.5. Check a Cancel-Key Header Field ............................7
4. Calculating the Key Data ........................................8
5. Examples ........................................................9
5.1. Without UID ................................................9
5.2. With UID ..................................................10
5.3. Other Examples ............................................11
5.4. Manual Checks .............................................12
6. Obsolete Syntax ................................................12
7. Security Considerations ........................................13
8. IANA Considerations ............................................15
8.1. Algorithm Name Registration Procedure .....................16
8.2. Change Control ............................................16
8.3. Registration of the Netnews Cancel-Lock Hash Algorithms ...17
9. References .....................................................18
9.1. Normative References ......................................18
9.2. Informative References ....................................19
Acknowledgements ..................................................20
Author's Address ..................................................20
1. Introduction
The authentication system defined in this document is intended to be
used as a simple method to verify that the withdrawal of an article
is valid; that is to say the poster, posting agent, moderator, or
injecting agent that processed the original article has requested to
withdraw it via the use of a cancel control article
([RFC5537] Section 5.3) or a Supersedes header field
([RFC5537] Section 5.4).
This document defines two new header fields: Cancel-Lock and
Cancel-Key. The Cancel-Lock header field contains hashes of secret
data. The preimages can later be used in the Cancel-Key header field
to authenticate a cancel or supersede request.
Baeuerle Standards Track [Page 2]
RFC 8315 Cancel-Locks February 2018
One property of this system is that it prevents tracking of
individual users.
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