Extension of the ACE CoAP-DTLS Profile to TLS
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|Authors||Olaf Bergmann , John Preuß Mattsson , Göran Selander|
|RFC stream||Internet Engineering Task Force (IETF)|
GENART Last Call review (of -05) by Paul Kyzivat On the Right Track
|Additional resources||Mailing list discussion|
|Stream||WG state||WG Document|
|IESG||IESG state||I-D Exists|
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Network Working Group O. Bergmann Internet-Draft TZI Updates: draft-ietf-ace-dtls-authorize (if J. Preuß Mattsson approved) G. Selander Intended status: Standards Track Ericsson Expires: 5 June 2022 2 December 2021 Extension of the ACE CoAP-DTLS Profile to TLS draft-ietf-ace-extend-dtls-authorize-00 Abstract This document updates the ACE CoAP-DTLS profile by specifying that the profile applies to TLS as well as DTLS. Discussion Venues This note is to be removed before publishing as an RFC. Discussion of this document takes place on the Authentication and Authorization for Constrained Environments Working Group mailing list (email@example.com), which is archived at https://mailarchive.ietf.org/arch/browse/ace/. Source for this draft and an issue tracker can be found at https://github.com/ace-wg/ace-extend-dtls-authorize. 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 5 June 2022. Bergmann, et al. Expires 5 June 2022 [Page 1] Internet-Draft CoAP-DTLS Extension December 2021 Copyright Notice Copyright (c) 2021 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 Revised BSD License text as described in Section 4.e of the Trust Legal Provisions and are provided without warranty as described in the Revised BSD License. Table of Contents 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2 2. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 2 3. Security Considerations . . . . . . . . . . . . . . . . . . . 3 4. References . . . . . . . . . . . . . . . . . . . . . . . . . 3 4.1. Normative References . . . . . . . . . . . . . . . . . . 3 4.2. Informative References . . . . . . . . . . . . . . . . . 3 Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . . . 4 Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 4 1. Introduction [I-D.ietf-ace-dtls-authorize] only specifies use of DTLS [I-D.ietf-tls-dtls13] but works equally well for TLS. For many constrained implementations, CoAP over UDP [RFC7252] is the first choice, but when deploying ACE in networks controlled by other entities (such as the Internet), UDP might be blocked on the path between the client and the RS, and the client might have to fall back to CoAP over TCP [RFC8323] for NAT or firewall traversal. This feature is supported by the OSCORE profile [I-D.ietf-ace-oscore-profile] but is lacking from the DTLS profile. This document updates [I-D.ietf-ace-dtls-authorize] by specifying that the profile applies to TLS as well as DTLS. The same access token is valid for both DTLS or TLS. The access rights do not depend on the transport layer security. 2. IANA Considerations No IANA Considerations. Bergmann, et al. Expires 5 June 2022 [Page 2] Internet-Draft CoAP-DTLS Extension December 2021 3. Security Considerations The security consideration and requirements in TLS 1.3 [RFC8446] and BCP 195 [RFC7525] [RFC8996] also apply to this document. 4. References 4.1. Normative References [I-D.ietf-ace-dtls-authorize] Gerdes, S., Bergmann, O., Bormann, C., Selander, G., and L. Seitz, "Datagram Transport Layer Security (DTLS) Profile for Authentication and Authorization for Constrained Environments (ACE)", Work in Progress, Internet-Draft, draft-ietf-ace-dtls-authorize-18, 4 June 2021, <https://www.ietf.org/archive/id/draft-ietf-ace- dtls-authorize-18.txt>. [I-D.ietf-tls-dtls13] Rescorla, E., Tschofenig, H., and N. Modadugu, "The Datagram Transport Layer Security (DTLS) Protocol Version 1.3", Work in Progress, Internet-Draft, draft-ietf-tls- dtls13-43, 30 April 2021, <https://www.ietf.org/internet- drafts/draft-ietf-tls-dtls13-43.txt>. [RFC7252] Shelby, Z., Hartke, K., and C. Bormann, "The Constrained Application Protocol (CoAP)", RFC 7252, DOI 10.17487/RFC7252, June 2014, <https://www.rfc-editor.org/info/rfc7252>. [RFC8323] Bormann, C., Lemay, S., Tschofenig, H., Hartke, K., Silverajan, B., and B. Raymor, Ed., "CoAP (Constrained Application Protocol) over TCP, TLS, and WebSockets", RFC 8323, DOI 10.17487/RFC8323, February 2018, <https://www.rfc-editor.org/info/rfc8323>. [RFC8446] Rescorla, E., "The Transport Layer Security (TLS) Protocol Version 1.3", RFC 8446, DOI 10.17487/RFC8446, August 2018, <https://www.rfc-editor.org/info/rfc8446>. 4.2. Informative References Bergmann, et al. Expires 5 June 2022 [Page 3] Internet-Draft CoAP-DTLS Extension December 2021 [I-D.ietf-ace-oscore-profile] Palombini, F., Seitz, L., Selander, G., and M. Gunnarsson, "OSCORE Profile of the Authentication and Authorization for Constrained Environments Framework", Work in Progress, Internet-Draft, draft-ietf-ace-oscore-profile-19, 6 May 2021, <https://www.ietf.org/archive/id/draft-ietf-ace- oscore-profile-19.txt>. [RFC7525] Sheffer, Y., Holz, R., and P. Saint-Andre, "Recommendations for Secure Use of Transport Layer Security (TLS) and Datagram Transport Layer Security (DTLS)", BCP 195, RFC 7525, DOI 10.17487/RFC7525, May 2015, <https://www.rfc-editor.org/info/rfc7525>. [RFC8996] Moriarty, K. and S. Farrell, "Deprecating TLS 1.0 and TLS 1.1", BCP 195, RFC 8996, DOI 10.17487/RFC8996, March 2021, <https://www.rfc-editor.org/info/rfc8996>. Acknowledgments Authors' Addresses Olaf Bergmann Universität Bremen TZI Bremen, D-28359 Germany Email: firstname.lastname@example.org John Preuß Mattsson Ericsson AB SE-164 80 Stockholm Sweden Email: email@example.com Göran Selander Ericsson AB SE-164 80 Stockholm Sweden Email: firstname.lastname@example.org Bergmann, et al. Expires 5 June 2022 [Page 4]