Key Provisioning for Group Communication using ACE
draft-ietf-ace-key-groupcomm-11
ACE Working Group F. Palombini
Internet-Draft Ericsson AB
Intended status: Standards Track M. Tiloca
Expires: August 26, 2021 RISE AB
February 22, 2021
Key Provisioning for Group Communication using ACE
draft-ietf-ace-key-groupcomm-11
Abstract
This document defines message formats and procedures for requesting
and distributing group keying material using the ACE framework, to
protect communications between group members.
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 August 26, 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 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.
Palombini & Tiloca Expires August 26, 2021 [Page 1]
Internet-Draft Key Provisioning for Group Communication February 2021
Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1. Terminology . . . . . . . . . . . . . . . . . . . . . . . 3
2. Overview . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3. Authorization to Join a Group . . . . . . . . . . . . . . . . 7
3.1. Authorization Request . . . . . . . . . . . . . . . . . . 8
3.2. Authorization Response . . . . . . . . . . . . . . . . . 10
3.3. Token Post . . . . . . . . . . . . . . . . . . . . . . . 11
4. Keying Material Provisioning and Group Membership Management 14
4.1. Interface at the KDC . . . . . . . . . . . . . . . . . . 16
4.2. Retrieval of Group Names and URIs . . . . . . . . . . . . 38
4.3. Joining Exchange . . . . . . . . . . . . . . . . . . . . 38
4.4. Retrieval of Updated Keying Material . . . . . . . . . . 40
4.5. Requesting a Change of Keying Material . . . . . . . . . 43
4.6. Retrieval of Public Keys and Roles for Group Members . . 44
4.7. Update of Public Key . . . . . . . . . . . . . . . . . . 46
4.8. Retrieval of Group Policies . . . . . . . . . . . . . . . 47
4.9. Retrieval of Keying Material Version . . . . . . . . . . 48
4.10. Group Leaving Request . . . . . . . . . . . . . . . . . . 49
5. Removal of a Node from the Group . . . . . . . . . . . . . . 49
6. Extended Scope Format . . . . . . . . . . . . . . . . . . . . 51
7. ACE Groupcomm Parameters . . . . . . . . . . . . . . . . . . 53
8. ACE Groupcomm Error Identifiers . . . . . . . . . . . . . . . 54
9. Security Considerations . . . . . . . . . . . . . . . . . . . 55
9.1. Update of Keying Material . . . . . . . . . . . . . . . . 56
9.2. Block-Wise Considerations . . . . . . . . . . . . . . . . 57
10. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 57
10.1. Media Type Registrations . . . . . . . . . . . . . . . . 57
10.2. CoAP Content-Formats Registry . . . . . . . . . . . . . 58
10.3. OAuth Parameters Registry . . . . . . . . . . . . . . . 59
10.4. OAuth Parameters CBOR Mappings Registry . . . . . . . . 59
10.5. ACE Groupcomm Parameters Registry . . . . . . . . . . . 59
10.6. ACE Groupcomm Key Registry . . . . . . . . . . . . . . . 60
10.7. ACE Groupcomm Profile Registry . . . . . . . . . . . . . 60
10.8. ACE Groupcomm Policy Registry . . . . . . . . . . . . . 61
10.9. Sequence Number Synchronization Method Registry . . . . 62
10.10. Interface Description (if=) Link Target Attribute Values
Registry . . . . . . . . . . . . . . . . . . . . . . . . 62
10.11. CBOR Tags Registry . . . . . . . . . . . . . . . . . . . 63
Show full document text