The RPKI Repository Delta Protocol (RRDP)
RFC 8182
Internet Engineering Task Force (IETF) T. Bruijnzeels
Request for Comments: 8182 O. Muravskiy
Category: Standards Track RIPE NCC
ISSN: 2070-1721 B. Weber
Cobenian
R. Austein
Dragon Research Labs
July 2017
The RPKI Repository Delta Protocol (RRDP)
Abstract
In the Resource Public Key Infrastructure (RPKI), Certificate
Authorities (CAs) publish certificates, including end-entity
certificates, Certificate Revocation Lists (CRLs), and RPKI signed
objects to repositories. Relying Parties retrieve the published
information from those repositories. This document specifies a new
RPKI Repository Delta Protocol (RRDP) for this purpose. RRDP was
specifically designed for scaling. It relies on an Update
Notification File which lists the current Snapshot and Delta Files
that can be retrieved using HTTPS (HTTP over Transport Layer Security
(TLS)), and it enables the use of Content Distribution Networks
(CDNs) or other caching infrastructures for the retrieval of these
files.
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/rfc8182.
Bruijnzeels, et al. Standards Track [Page 1]
RFC 8182 The RPKI Repository Delta Protocol (RRDP) July 2017
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 3
2. Requirements Notation . . . . . . . . . . . . . . . . . . . . 4
3. RPKI Repository Delta Protocol Implementation . . . . . . . . 4
3.1. Informal Overview . . . . . . . . . . . . . . . . . . . . 4
3.2. Certificate Authority Use . . . . . . . . . . . . . . . . 5
3.3. Repository Server Use . . . . . . . . . . . . . . . . . . 6
3.3.1. Initialization . . . . . . . . . . . . . . . . . . . 6
3.3.2. Publishing Updates . . . . . . . . . . . . . . . . . 6
3.4. Relying Party Use . . . . . . . . . . . . . . . . . . . . 7
3.4.1. Processing the Update Notification File . . . . . . . 7
3.4.2. Processing Delta Files . . . . . . . . . . . . . . . 9
3.4.3. Processing a Snapshot File . . . . . . . . . . . . . 10
3.4.4. Polling the Update Notification File . . . . . . . . 10
3.4.5. Considerations Regarding Operational Failures in RRDP 11
3.5. File Definitions . . . . . . . . . . . . . . . . . . . . 11
3.5.1. Update Notification File . . . . . . . . . . . . . . 11
3.5.2. Snapshot File . . . . . . . . . . . . . . . . . . . . 13
3.5.3. Delta File . . . . . . . . . . . . . . . . . . . . . 15
3.5.4. XML Schema . . . . . . . . . . . . . . . . . . . . . 17
4. Operational Considerations . . . . . . . . . . . . . . . . . 18
4.1. Compatibility with previous standards . . . . . . . . . . 18
4.2. Distribution Considerations . . . . . . . . . . . . . . . 19
4.3. HTTPS Considerations . . . . . . . . . . . . . . . . . . 19
5. Security Considerations . . . . . . . . . . . . . . . . . . . 20
6. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 21
7. References . . . . . . . . . . . . . . . . . . . . . . . . . 22
7.1. Normative References . . . . . . . . . . . . . . . . . . 22
7.2. Informative References . . . . . . . . . . . . . . . . . 23
Acknowledgements . . . . . . . . . . . . . . . . . . . . . . . . 24
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 24
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