EST over secure CoAP (EST-coaps)
draft-ietf-ace-coap-est-18
Document | Type | Active Internet-Draft (ace WG) | ||
---|---|---|---|---|
Authors | Peter Van der Stok , Panos Kampanakis , Michael Richardson , Shahid Raza | |||
Last updated | 2020-01-23 (latest revision 2020-01-06) | |||
Replaces | draft-vanderstok-ace-coap-est | |||
Stream | Internent Engineering Task Force (IETF) | |||
Intended RFC status | Proposed Standard | |||
Formats | plain text xml pdf htmlized (tools) htmlized bibtex | |||
Reviews | ||||
Stream | WG state | Submitted to IESG for Publication | ||
Document shepherd | Jim Schaad | |||
Shepherd write-up | Show (last changed 2019-05-07) | |||
IESG | IESG state | RFC Ed Queue | ||
Action Holders |
(None)
|
|||
Consensus Boilerplate | Yes | |||
Telechat date | ||||
Responsible AD | Benjamin Kaduk | |||
Send notices to | Jim Schaad <ietf@augustcellars.com> | |||
IANA | IANA review state | Version Changed - Review Needed | ||
IANA action state | RFC-Ed-Ack | |||
IANA expert review state | Expert Reviews OK | |||
RFC Editor | RFC Editor state | MISSREF | ||
Details |
ACE P. van der Stok Internet-Draft Consultant Intended status: Standards Track P. Kampanakis Expires: July 9, 2020 Cisco Systems M. Richardson SSW S. Raza RISE SICS January 6, 2020 EST over secure CoAP (EST-coaps) draft-ietf-ace-coap-est-18 Abstract Enrollment over Secure Transport (EST) is used as a certificate provisioning protocol over HTTPS. Low-resource devices often use the lightweight Constrained Application Protocol (CoAP) for message exchanges. This document defines how to transport EST payloads over secure CoAP (EST-coaps), which allows constrained devices to use existing EST functionality for provisioning certificates. 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 July 9, 2020. Copyright Notice Copyright (c) 2020 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 van der Stok, et al. Expires July 9, 2020 [Page 1] Internet-Draft EST-coaps January 2020 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. Table of Contents 1. Change Log . . . . . . . . . . . . . . . . . . . . . . . . . 3 2. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 7 3. Terminology . . . . . . . . . . . . . . . . . . . . . . . . . 7 4. DTLS and conformance to RFC7925 profiles . . . . . . . . . . 7 5. Protocol Design . . . . . . . . . . . . . . . . . . . . . . . 10 5.1. Discovery and URIs . . . . . . . . . . . . . . . . . . . 10 5.2. Mandatory/optional EST Functions . . . . . . . . . . . . 13 5.3. Payload formats . . . . . . . . . . . . . . . . . . . . . 13 5.4. Message Bindings . . . . . . . . . . . . . . . . . . . . 15 5.5. CoAP response codes . . . . . . . . . . . . . . . . . . . 15 5.6. Message fragmentation . . . . . . . . . . . . . . . . . . 16 5.7. Delayed Responses . . . . . . . . . . . . . . . . . . . . 17 5.8. Server-side Key Generation . . . . . . . . . . . . . . . 19 6. HTTPS-CoAPS Registrar . . . . . . . . . . . . . . . . . . . . 21 7. Parameters . . . . . . . . . . . . . . . . . . . . . . . . . 23 8. Deployment limitations . . . . . . . . . . . . . . . . . . . 23 9. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 24 9.1. Content-Format Registry . . . . . . . . . . . . . . . . . 24 9.2. Resource Type registry . . . . . . . . . . . . . . . . . 24 9.3. Well-Known URIs Registry . . . . . . . . . . . . . . . . 25 10. Security Considerations . . . . . . . . . . . . . . . . . . . 25 10.1. EST server considerations . . . . . . . . . . . . . . . 25 10.2. HTTPS-CoAPS Registrar considerations . . . . . . . . . . 27 11. Contributors . . . . . . . . . . . . . . . . . . . . . . . . 28 12. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . 28 13. References . . . . . . . . . . . . . . . . . . . . . . . . . 28 13.1. Normative References . . . . . . . . . . . . . . . . . . 28 13.2. Informative References . . . . . . . . . . . . . . . . . 30 Appendix A. EST messages to EST-coaps . . . . . . . . . . . . . 32 A.1. cacerts . . . . . . . . . . . . . . . . . . . . . . . . . 33 A.2. enroll / reenroll . . . . . . . . . . . . . . . . . . . . 35Show full document text