RPKI Certificate Tree Validation by the RIPE NCC RPKI Validator
draft-ietf-sidrops-rpki-tree-validation-02
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Active Internet-Draft (sidrops WG)
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2018-08-30
(latest revision 2018-06-29)
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draft-ietf-sidr-rpki-tree-validation
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IETF
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Informational
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plain text
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Submitted to IESG for Publication
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Document shepherd |
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Chris Morrow
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Show
(last changed 2018-07-27)
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Approved-announcement to be sent::Revised I-D Needed
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Yes
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Warren Kumari
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Chris Morrow <morrowc@ops-netman.net>
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SIDR Operations O. Muravskiy
Internet-Draft RIPE NCC
Intended status: Informational T. Bruijnzeels
Expires: December 30, 2018 NLNetLabs
June 28, 2018
RPKI Certificate Tree Validation by the RIPE NCC RPKI Validator
draft-ietf-sidrops-rpki-tree-validation-02
Abstract
This document describes the approach to validate the content of the
RPKI certificate tree, as it is implemented in the RIPE NCC RPKI
Validator. This approach is independent of a particular object
retrieval mechanism. This allows it to be used with repositories
available over the rsync protocol, the RPKI Repository Delta
Protocol, and repositories that use a mix of both.
Status of This Memo
This Internet-Draft is submitted in full conformance with the
provisions of BCP 78 and BCP 79.
Internet-Drafts are working documents of the Internet Engineering
Task Force (IETF). Note that other groups may also distribute
working documents as Internet-Drafts. The list of current Internet-
Drafts is at https://datatracker.ietf.org/drafts/current/.
Internet-Drafts are draft documents valid for a maximum of six months
and may be updated, replaced, or obsoleted by other documents at any
time. It is inappropriate to use Internet-Drafts as reference
material or to cite them other than as "work in progress."
This Internet-Draft will expire on December 30, 2018.
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
Muravskiy & Bruijnzeels Expires December 30, 2018 [Page 1]
Internet-Draft RPKI Tree Validation June 2018
the Trust Legal Provisions and are provided without warranty as
described in the Simplified BSD License.
Table of Contents
1. Scope of this document . . . . . . . . . . . . . . . . . . . 3
2. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 3
3. General Considerations . . . . . . . . . . . . . . . . . . . 4
3.1. Hash comparisons . . . . . . . . . . . . . . . . . . . . 4
3.2. Discovery of RPKI objects issued by a CA . . . . . . . . 4
3.3. Manifest entries versus repository content . . . . . . . 4
4. Top-down Validation of a Single Trust Anchor Certificate Tree 5
4.1. Fetching the Trust Anchor Certificate Using the Trust
Anchor Locator . . . . . . . . . . . . . . . . . . . . . 5
4.2. CA Certificate Validation . . . . . . . . . . . . . . . . 6
4.2.1. Finding the most recent valid manifest and CRL . . . 7
4.2.2. Manifest entries validation . . . . . . . . . . . . . 8
4.3. Object Store Cleanup . . . . . . . . . . . . . . . . . . 9
5. Remote Objects Fetcher . . . . . . . . . . . . . . . . . . . 9
5.1. Fetcher Operations . . . . . . . . . . . . . . . . . . . 9
5.1.1. Fetch repository objects . . . . . . . . . . . . . . 10
5.1.2. Fetch single repository object . . . . . . . . . . . 10
6. Local Object Store . . . . . . . . . . . . . . . . . . . . . 11
6.1. Store Operations . . . . . . . . . . . . . . . . . . . . 11
6.1.1. Store Repository Object . . . . . . . . . . . . . . . 11
6.1.2. Get objects by hash . . . . . . . . . . . . . . . . . 11
6.1.3. Get certificate objects by URI . . . . . . . . . . . 11
6.1.4. Get manifest objects by AKI . . . . . . . . . . . . . 11
6.1.5. Delete objects for a URI . . . . . . . . . . . . . . 12
6.1.6. Delete outdated objects . . . . . . . . . . . . . . . 12
6.1.7. Update object's validation time . . . . . . . . . . . 12
7. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . 12
8. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 12
9. Security Considerations . . . . . . . . . . . . . . . . . . . 12
9.1. Hash collisions . . . . . . . . . . . . . . . . . . . . . 12
9.2. Mismatch between the expected and the actual location of
an object in the repository . . . . . . . . . . . . . . . 12
9.3. Manifest content versus publication point content . . . . 13
9.4. Storing of a TA certificate object before its complete
validation . . . . . . . . . . . . . . . . . . . . . . . 13
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