AAA-based assisted EDHOC Authentication
draft-ingles-radex-radius-edhoc-00

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Network Working Group                                          E. Ingles
Internet-Draft                                      University of Murcia
Intended status: Experimental                                  D. Garcia
Expires: February 6, 2021                            Odin Solutions S.L.
                                                                R. Marin
                                                    University of Murcia
                                                          August 5, 2020

                AAA-based assisted EDHOC Authentication
                   draft-ingles-radex-radius-edhoc-00

Abstract

   This document describes a proposal to place EDHOC server in an
   external Authentication, Authorization and Accounting (AAA) server.
   The purpose is to centralize the EDHOC authentication in AAA
   infrastructure.

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   This Internet-Draft will expire on February 6, 2021.

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Ingles, et al.          Expires February 6, 2021                [Page 1]
Internet-Draft     draft-ingles-radex-radius-edhoc-00        August 2020

   the Trust Legal Provisions and are provided without warranty as
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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
     1.1.  Requirements Language . . . . . . . . . . . . . . . . . .   3
   2.  EDHOC support in AAA  . . . . . . . . . . . . . . . . . . . .   3
   3.  EDHOC Overview  . . . . . . . . . . . . . . . . . . . . . . .   3
     3.1.  Introduction  . . . . . . . . . . . . . . . . . . . . . .   3
     3.2.  EDHOC protocol overview . . . . . . . . . . . . . . . . .   4
     3.3.  EDHOC key derivation  . . . . . . . . . . . . . . . . . .   4
   4.  Integration Overview  . . . . . . . . . . . . . . . . . . . .   5
     4.1.  Mapping EDHOC entities to AAA infrastructure  . . . . . .   5
     4.2.  Assumptions . . . . . . . . . . . . . . . . . . . . . . .   5
     4.3.  Protocol Exchange . . . . . . . . . . . . . . . . . . . .   5
     4.4.  EDHOC-message Attribute . . . . . . . . . . . . . . . . .   6
     4.5.  EDHOC-key attribute . . . . . . . . . . . . . . . . . . .   7
     4.6.  Table of Attribute  . . . . . . . . . . . . . . . . . . .   8
   5.  Open Issues . . . . . . . . . . . . . . . . . . . . . . . . .   8
   6.  Security Considerations . . . . . . . . . . . . . . . . . . .   8
   7.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .   9
   8.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   9
   9.  References  . . . . . . . . . . . . . . . . . . . . . . . . .   9
     9.1.  Normative References  . . . . . . . . . . . . . . . . . .   9
     9.2.  Informative References  . . . . . . . . . . . . . . . . .   9
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .   9

1.  Introduction

   EDHOC [I-D.selander-lake-edhoc] is a new protocol for autentication
   and key derivation that has been proposed as an alternative in IoT
   mainly due to two main characteristics, namely, it works on top of
   any reliable transport, which means it can be carried over a protocol
   such as CoAP and provides a secure exchange in an end-to-end fashion.
   This key material can be futher used to run other protocols such as
   OSCORE, as well as providing key material to any other protocol that
   needs pre-shared key material to secure the communications.  EDHOC
   has another characteristic that makes it an interesting alternative
   that is work underlining, it is designed to be lightweight, for which
   is build using COSE, reducing the overhead of the protocol.  The
   proposal of this protocol coalesces with the advancement of the new
   set of technologies known as LPWAN, which generally have high
   constrains in the link, even more than traditional IoT networks.